Release v3.0

OGP1718-Worms/src-provided/worms/Worms.java

@@ -22,6 +22,9 @@ public class Worms {
 				options.randomSeed = randomSeed;
 			} else if ("-clickselect".equals(arg)) {
 				options.enableClickToSelect = true;
+			} else if ("-program".equals(arg)) {
+				String program = args[++i];
+				options.programFile = program;
 			}
 		}
 

OGP1718-Worms/src-provided/worms/facade/IFacade.java

@@ -2,7 +2,10 @@ package worms.facade;
 
 import java.math.BigInteger;
 import java.util.*;
+
+import worms.internal.gui.game.IActionHandler;
 import worms.model.*;
+import worms.programs.IProgramFactory;
 import worms.util.ModelException;
 import worms.util.MustNotImplementException;
 
@@ -356,6 +359,7 @@ public interface IFacade {
 	default void fall(Worm worm) throws ModelException, MustNotImplementException  {
 		throw new MustNotImplementException();
 	}
+
 	/**
 	 * Return the time needed by the given worm to jump to the nearest position
 	 * adjacent to impassable terrain.
@@ -380,7 +384,17 @@ public interface IFacade {
 	 */
 	void jump(Worm worm, double timeStep) throws ModelException;
 
+	/**
+	 * Make the given worm eat a portion of food.
+	 */
+	void eat(Worm worm) throws ModelException;
 	
+	/**
+	 * Have the give worm fire a projectile.
+	 *   - The method must return the projectile that has been fired.
+	 */
+	Projectile fire(Worm worm) throws ModelException;
+
 	
 	/************
 	 * FOOD
@@ -426,11 +440,76 @@ public interface IFacade {
 	 */
 	World getWorld(Food food) throws ModelException;	
 
+	/**
+	 * Return whether or not the given portion of food is poisonous.
+	 */
+	boolean isPoisonous(Food food) throws ModelException;
+	
+	/**
+	 * Poison the given portion of food.
+	 */
+	void poison(Food food) throws ModelException;
+
+	
+	
+	/*************
+	 * PROJECTILE
+	 *************/
 
 	/**
-	 * Make the given worm eat a portion of food.
+	 * Check whether the given projectile is terminated.
 	 */
-	public void eat(Worm worm);
+	boolean isTerminated(Projectile projectile) throws ModelException;
+
+	/**
+	 * Return the current orientation of the given projectile (in radians).
+	 */
+	double getOrientation(Projectile projectile) throws ModelException;
+	
+	/**
+	 * Return the current location of the given projectile.
+	 *   - The resulting array contains the the x-coordinate of the given projectile
+	 *     followed by its y-coordinate.
+	 */
+	double[] getLocation(Projectile projectile) throws ModelException;
+
+	/**
+	 * Return the radius of the given projectile.
+	 */
+	double getRadius(Projectile projectile);
+	
+	/**
+	 * Return the number of hit points of the given projectile.
+	 */
+	int getNbHitPoints(Projectile projectile) throws ModelException;
+
+	/**
+	 * Returns the location on the jump trajectory of the given projectile
+	 * after a time t.
+	 *   - The resulting location is an array with two elements,
+	 *     with the first element being the x-coordinate and the
+	 *     second element the y-coordinate.
+	 */
+	double[] getJumpStep(Projectile projectile, double elapsedTime);
+
+	/**
+	 * Return the time needed by the given projectile to jump to the nearest 
+	 * location at which the projectile hits impassable terrain or a worm.
+	 *   - deltaT determines the resolution to be used in successive steps of the jump.
+	 */
+	double getJumpTime(Projectile projectile, double jumpTimeStep) throws ModelException;
+	
+	/**
+	 * Make the given projectile jump using the given time step.
+	 *   - The given time step determines a time interval during which
+	 *     you may assume that the projectile will not hit impassable
+	 *     terrain nor a worm.
+	 */
+	void jump(Projectile projectile, double jumpTimeStep) throws ModelException;
+	
+
+	
+	
 	
 	/********
 	 * TEAM
@@ -523,4 +602,59 @@ public interface IFacade {
 		throw new MustNotImplementException();
 	}
 
+
+	
+	
+
+	/**********
+	 * PROGRAMS
+	 **********/
+
+	/**
+	 * Return the program loaded on the given worm.
+	 */
+	Program getWormProgram(Worm worm) throws ModelException;
+
+	/**
+	 * Load the given program on the given worm.
+	 * 
+	 * While executing the program, the worm must invoke the methods corresponding
+	 * to actions through the provided ActionHandler object (e.g., actionHandler.jump(this),
+	 * actionHandler.turn(this, 0.2), etc.) rather than invoking them directly (e.g., this.jump()).
+	 * This executes the action as if a human player has initiated it, so the GUI can update itself.
+	 * The GUI will also invoke the corresponding method on the worm through the facade. 
+	 */
+	public void loadProgramOnWorm(Worm worm, Program program, IActionHandler actionHandler) throws ModelException;
+
+	/**
+	 * Execute the program loaded on the given worm.
+	 * The worm is positioned in some world. Returns null if the program
+	 * is not completely executed. Otherwise, returns the objects that have been
+	 * printed.
+	 * 
+	 * This method is only used in the tests. The GUI never calls this method; 
+	 * you should execute the program when the worm is activated.
+	 */
+	public List<Object> executeProgram(Worm worm) throws ModelException;
+
+	/**
+	 * Creates a new program factory.
+	 */
+	public IProgramFactory<?, ?, ?, ? extends Program> createProgramFactory() throws ModelException;
+
+
+	
+	
+
+	/*********
+	 * WIZARD
+	 *********/
+
+	/**
+	 * Have the wizard cast a spell over two randomly slected game objects in the given
+	 * world.
+	 */
+	void castSpell(World world) throws ModelException;
+
+
 }

OGP1718-Worms/src-provided/worms/internal/gui/GUIOptions.java

@@ -26,4 +26,11 @@ public class GUIOptions {
 	 */
 	public boolean enableClickToSelect = false;
 	
+	/**
+	 * The program that is executed by computer-controlled worms.
+	 * Default: "programs/program.txt"
+	 * 
+	 * Can also be set from the command line with the -program argument
+	 */
+	public String programFile = "programs/program.txt";
 }

OGP1718-Worms/src-provided/worms/internal/gui/game/DefaultActionHandler.java

@@ -5,11 +5,13 @@ import java.util.concurrent.Executors;
 
 import worms.facade.IFacade;
 import worms.internal.gui.GameState;
+import worms.internal.gui.game.commands.ActivateWizard;
 import worms.internal.gui.game.commands.AddNewFood;
 import worms.internal.gui.game.commands.AddNewTeam;
 import worms.internal.gui.game.commands.AddNewWorm;
 import worms.internal.gui.game.commands.Command;
 import worms.internal.gui.game.commands.Eat;
+import worms.internal.gui.game.commands.Fire;
 import worms.internal.gui.game.commands.Jump;
 import worms.internal.gui.game.commands.Move;
 import worms.internal.gui.game.commands.Rename;
@@ -88,8 +90,14 @@ class DefaultActionHandler implements IActionHandler {
 		executeCommand(new Rename(getFacade(), worm, newName, getScreen()));
 	}
 	
-	public void eat(Worm worm) {
-		executeCommand(new Eat(getFacade(), worm, getScreen()));
+	@Override
+	public boolean eat(Worm worm) {
+		return executeCommand(new Eat(getFacade(), worm, getScreen()));
+	}
+	
+	@Override
+	public boolean fire(Worm worm) {
+		return executeCommand(new Fire(getFacade(), worm, getScreen()));
 	}
 
 	public void selectNextWorm() {
@@ -100,8 +108,8 @@ class DefaultActionHandler implements IActionHandler {
 		executeCommand(new StartGame(getFacade(), getScreen()));
 	}
 
-	public void addNewWorm() {
-		executeCommand(new AddNewWorm(getFacade(), getScreen()));
+	public void addNewWorm(boolean withProgram) {
+		executeCommand(new AddNewWorm(getFacade(), withProgram, getScreen()));
 	}
 
 	public void addEmptyTeam(String name) {
@@ -111,5 +119,9 @@ class DefaultActionHandler implements IActionHandler {
 	public void addNewFood() {
 		executeCommand(new AddNewFood(getFacade(), getScreen()));
 	}
+	
+	public void activateWizard() {
+		executeCommand(new ActivateWizard(getFacade(), getScreen()));
+	}
 
 }

OGP1718-Worms/src-provided/worms/internal/gui/game/IActionHandler.java

@@ -14,6 +14,7 @@ import worms.model.Worm;
  * <li>shows periodic updates on the GUI (such as jump animations)
  * <li>eventually calls the corresponding facade methods, exactly like what
  * happens with a human player
+ * <li>makes sure a worm will fall after moving
  * <li>returns true if the action has been completed successfully; false
  * otherwise
  * </ul>
@@ -29,6 +30,10 @@ public interface IActionHandler {
 	public boolean move(Worm worm);
 
 	public boolean jump(Worm worm);
+	
+	public boolean eat(Worm worm);
+	
+	public boolean fire(Worm worm);
 
 	/**
 	 * Print a message on the screen for a short amount of time.

OGP1718-Worms/src-provided/worms/internal/gui/game/PlayGameScreen.java

@@ -224,6 +224,14 @@ public class PlayGameScreen extends Screen {
 		}
 
 	}
+	
+	public void fire() {
+		Worm worm = getSelectedWorm();
+		if (worm != null) {
+			userActionHandler.fire(worm);
+		}
+
+	}
 
 	public void turn(double angle) {
 		Worm worm = getSelectedWorm();
@@ -397,7 +405,11 @@ public class PlayGameScreen extends Screen {
 	}
 
 	public void addPlayerControlledWorm() {
-		userActionHandler.addNewWorm();
+		userActionHandler.addNewWorm(false);
+	}
+	
+	public void addComputerControlledWorm() {
+		userActionHandler.addNewWorm(true);
 	}
 
 	public void addFood() {
@@ -445,4 +457,8 @@ public class PlayGameScreen extends Screen {
 		return programActionHandler;
 	}
 
+	public void activateWizard() {
+		userActionHandler.activateWizard();
+	}
+
 }

OGP1718-Worms/src-provided/worms/internal/gui/game/PlayGameScreenPainter.java

@@ -17,6 +17,7 @@ import worms.internal.gui.GUIUtils;
 import worms.internal.gui.GameState;
 import worms.internal.gui.Level;
 import worms.internal.gui.game.sprites.FoodSprite;
+import worms.internal.gui.game.sprites.ProjectileSprite;
 import worms.internal.gui.game.sprites.WormSprite;
 import worms.model.World;
 import worms.util.ModelException;
@@ -102,9 +103,18 @@ public class PlayGameScreenPainter extends AbstractPainter<PlayGameScreen> {
 			paintWorm(sprite);
 		}
 
+		for (ProjectileSprite sprite : getScreen().getSpritesOfType(
+				ProjectileSprite.class)) {
+			paintProjectile(sprite);
+		}
+
 		this.currentGraphics = null;
 	}
 
+	protected void paintProjectile(ProjectileSprite sprite) {
+		sprite.draw(currentGraphics);
+	}
+
 	protected void paintFood(FoodSprite sprite) {
 		sprite.draw(currentGraphics);
 	}

OGP1718-Worms/src-provided/worms/internal/gui/game/commands/ActivateWizard.java

@@ -0,0 +1,29 @@
+package worms.internal.gui.game.commands;
+
+import worms.facade.IFacade;
+import worms.internal.gui.game.PlayGameScreen;
+import worms.internal.gui.messages.MessageType;
+import worms.util.ModelException;
+
+public class ActivateWizard extends InstantaneousCommand {
+
+	public ActivateWizard(IFacade facade,
+			PlayGameScreen screen) {
+		super(facade, screen);
+	}
+
+	@Override
+	protected boolean canStart() {
+		return true;
+	}
+
+	@Override
+	protected void doStartExecution() {
+		try {
+			getFacade().castSpell(getWorld());
+			getScreen().addMessage("The wizard has done wizardry things!", MessageType.INFO);
+		} catch (ModelException e) {
+			getScreen().addMessage("The wizard could not cast its spell :(", MessageType.ERROR);
+		}
+	}
+}

OGP1718-Worms/src-provided/worms/internal/gui/game/commands/AddNewWorm.java

@@ -1,21 +1,34 @@
 package worms.internal.gui.game.commands;
 
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.util.List;
 import java.util.Random;
 
 import worms.facade.IFacade;
 import worms.internal.gui.GUIUtils;
+import worms.internal.gui.WormsGUI;
 import worms.internal.gui.game.PlayGameScreen;
 import worms.internal.gui.messages.MessageType;
+import worms.model.Program;
 import worms.model.Team;
+import worms.model.Worm;
+import worms.programs.IProgramFactory;
+import worms.programs.ParseOutcome;
+import worms.programs.ProgramParser;
 import worms.util.ModelException;
 
 public class AddNewWorm extends InstantaneousCommand {
 
 	private static final double MIN_RADIUS = 0.25;
-	private static final double MAX_RADIUS = Math.pow(2, 1.0/3.0) * MIN_RADIUS;
-	
-	public AddNewWorm(IFacade facade, PlayGameScreen screen) {
+	private static final double MAX_RADIUS = Math.pow(2, 1.0 / 3.0) * MIN_RADIUS;
+	private boolean withProgram;
+
+	public AddNewWorm(IFacade facade, boolean withProgram, PlayGameScreen screen) {
 		super(facade, screen);
+		this.withProgram = withProgram;
 	}
 
 	@Override
@@ -36,10 +49,82 @@ public class AddNewWorm extends InstantaneousCommand {
 
 			double direction = random.nextDouble() * 2 * Math.PI;
 			Team team = getScreen().getLastCreatedTeam();
-			getFacade().createWorm(getWorld(), p, direction, radius, name, team);
+			Worm worm = getFacade().createWorm(getWorld(), p, direction, radius, name, team);
+
+			if (withProgram) {
+				loadProgram(worm);
+			}
+
 		} catch (ModelException e) {
 			e.printStackTrace();
 			getScreen().addMessage("Could not create worm", MessageType.ERROR);
 		}
 	}
+
+	private void loadProgram(Worm worm) {
+		String programText = readProgramText();
+		if (programText != null) {
+			IProgramFactory<?, ?, ?, ? extends Program> factory = getFacade().createProgramFactory();
+			ProgramParser<?, ?, ?, ? extends Program> parser = ProgramParser.create(factory);
+			ParseOutcome<? extends Program> outcome = parser.parseString(programText);
+
+			if (outcome != null) {
+				if (outcome.isSuccess()) {
+					Program program = outcome.getSuccessValue();
+					getFacade().loadProgramOnWorm(worm, program, getScreen().getProgramActionHandler());
+				} else {
+					List<String> errors = outcome.getFailValue();
+					String msg = "Parsing failed\nwith the following errors:\n";
+					for (String error : errors) {
+						msg += error + "\n";
+					}
+					cancelExecution();
+					getGUI().showError(msg);
+					return;
+				}
+			}
+		} else {
+			cancelExecution();
+			getGUI().showError("Could not parse program");
+		}
+	}
+
+	private WormsGUI getGUI() {
+		return getScreen().getGUI();
+	}
+
+	protected String readProgramText() {
+		InputStream stream;
+		try {
+			stream = GUIUtils.openResource(getGUI().getOptions().programFile);
+		} catch (IOException e) {
+			e.printStackTrace();
+			getGUI().showError(e.getMessage());
+			return null;
+		}
+
+		BufferedReader reader = new BufferedReader(new InputStreamReader(stream));
+		StringBuilder programText = new StringBuilder();
+		String line;
+		try {
+			line = reader.readLine();
+			while (line != null) {
+				programText.append(line);
+				programText.append("\n");
+				line = reader.readLine();
+			}
+		} catch (IOException e) {
+			e.printStackTrace();
+			cancelExecution(e);
+			return null;
+		} finally {
+			try {
+				reader.close();
+			} catch (IOException e) {
+				// I don't care
+			}
+		}
+		return programText.toString();
+	}
+
 }

OGP1718-Worms/src-provided/worms/internal/gui/game/commands/Fire.java

@@ -0,0 +1,83 @@
+package worms.internal.gui.game.commands;
+
+import worms.facade.IFacade;
+import worms.internal.gui.GUIConstants;
+import worms.internal.gui.game.PlayGameScreen;
+import worms.internal.gui.game.sprites.ProjectileSprite;
+import worms.internal.gui.messages.MessageType;
+import worms.model.Projectile;
+import worms.model.Worm;
+import worms.util.ModelException;
+
+public class Fire extends Command {
+	private final Worm worm;
+
+	private Projectile projectile;
+	private double totalDuration;
+	private boolean hasJumped;
+
+	public Fire(IFacade facade, Worm worm, PlayGameScreen screen) {
+		super(facade, screen);
+		this.worm = worm;
+	}
+
+	@Override
+	protected boolean canStart() {
+		return worm != null;
+	}
+
+	@Override
+	protected void doStartExecution() {
+		try {
+			projectile = getFacade().fire(worm);
+			if (projectile != null) {
+				totalDuration = getFacade().getJumpTime(projectile, GUIConstants.JUMP_TIME_STEP);
+				ProjectileSprite sprite = new ProjectileSprite(getScreen(), projectile);
+				sprite.update();
+				getScreen().addSprite(sprite);
+			} else {
+				cancelExecution();
+			}
+		} catch (ModelException e) {
+			e.printStackTrace();
+			cancelExecution();
+		}
+	}
+	
+	@Override
+	protected void afterExecutionCompleted() {
+		super.afterExecutionCompleted();
+		ProjectileSprite sprite = getScreen().getSpriteOfTypeFor(ProjectileSprite.class, projectile);
+		if (sprite != null) {
+			sprite.setDoneMoving();
+		}
+	}
+
+	@Override
+	protected void afterExecutionCancelled(Throwable e) {
+		getScreen().addMessage("This worm cannot shoot :(" + (e != null ? "\n" + e.getMessage() : ""),
+				MessageType.ERROR);
+	}
+
+	@Override
+	protected void doUpdate(double dt) {
+		try {
+			if (getElapsedTime() >= totalDuration) {
+				if (!hasJumped) {
+					hasJumped = true;
+					getFacade().jump(projectile, GUIConstants.JUMP_TIME_STEP);
+					completeExecution();
+				}
+			} else {
+				ProjectileSprite sprite = getScreen().getSpriteOfTypeFor(ProjectileSprite.class, projectile);
+
+				double[] xy = getFacade().getJumpStep(projectile, getElapsedTime());
+
+				sprite.setCenterLocation(getScreen().getScreenX(xy[0]), getScreen().getScreenY(xy[1]));
+			}
+		} catch (ModelException e) {
+			e.printStackTrace();
+			cancelExecution();
+		}
+	}
+}

OGP1718-Worms/src-provided/worms/internal/gui/game/commands/StartGame.java

@@ -24,6 +24,7 @@ public class StartGame extends InstantaneousCommand {
 	protected void afterExecutionCancelled(Throwable e) {
 		if (e != null) {
 			getScreen().addMessage("Cannot start the game: " + e.getMessage(), MessageType.ERROR);
+			e.printStackTrace();
 		} else {
 			getScreen().addMessage("Cannot start the game without worms", MessageType.ERROR);
 		}

OGP1718-Worms/src-provided/worms/internal/gui/game/modes/DefaultInputMode.java

@@ -55,6 +55,14 @@ public class DefaultInputMode extends InputMode<PlayGameScreen> {
 		case 'E':
 			getScreen().eat();
 			break;
+		case 'f':
+		case 'F':
+			getScreen().fire();
+			break;
+		case 's':
+		case 'S':
+			getScreen().activateWizard();
+			break;
 		}
 	}
 

OGP1718-Worms/src-provided/worms/internal/gui/game/modes/SetupInputMode.java

@@ -24,6 +24,10 @@ public class SetupInputMode extends InputMode<PlayGameScreen> {
 		case 'W':
 			getScreen().addPlayerControlledWorm();
 			break;
+		case 'c':
+		case 'C':
+			getScreen().addComputerControlledWorm();
+			break;
 		case 'f':
 		case 'F':
 			getScreen().addFood();
@@ -49,7 +53,12 @@ public class SetupInputMode extends InputMode<PlayGameScreen> {
 		getScreen()
 				.showInstructions(
 						g,
-						"Press\n'T' to create a new team\n'W' to add a new worm\n'F' to add food\n'S' to start the game");
+						"Press\n"
+						+ "'T' to create a new team\n"
+						+ "'W' to add a new player-controlled worm\n"
+						+ "'C' to add a new computer-controlled worm\n"
+						+ "'F' to add food\n"
+						+ "'S' to start the game");
 	}
 
 }

OGP1718-Worms/src-provided/worms/internal/gui/game/sprites/FoodSprite.java

@@ -1,5 +1,8 @@
 package worms.internal.gui.game.sprites;
 
+import java.awt.Image;
+import java.awt.image.BufferedImage;
+
 import worms.internal.gui.game.ImageSprite;
 import worms.internal.gui.game.PlayGameScreen;
 import worms.model.Food;
@@ -12,10 +15,22 @@ public class FoodSprite extends ImageSprite<Food> {
 	private final Food food;
 	
 	private double radius;
+	
+	private boolean poisonous = false;
+	
+	// original image, at original scale
+	private final BufferedImage originalPoisonousImage;
+
+	// only created when scale != 1.0
+	private BufferedImage scaledPoisonousImage;
 
 	public FoodSprite(PlayGameScreen screen, Food food) {
 		super(screen, "images/burger.png");
 		this.food = food;
+		// constraint: must have same dimensions as original image
+		// constraint: does not respect hflipping 
+		this.originalPoisonousImage = loadImage("images/burger-poisonous.png");
+		this.scaledPoisonousImage = this.originalPoisonousImage;
 		update();
 	}
 
@@ -45,9 +60,52 @@ public class FoodSprite extends ImageSprite<Food> {
 
 		setScale(scaleFactor);
 	}
+
+	@Override
+	public void setScale(double newScale) {
+		double oldScale = getScale();
+		
+		super.setScale(newScale);
+		
+		if (newScale == oldScale) {
+			return;
+		}
+
+		if (newScale != 1.0) {
+			this.scaledPoisonousImage = toBufferedImage(originalPoisonousImage.getScaledInstance(
+					(int) (newScale * originalPoisonousImage.getWidth()),
+					(int) (newScale * originalPoisonousImage.getHeight()),
+					Image.SCALE_SMOOTH));
+		} else {
+			this.scaledPoisonousImage = originalPoisonousImage;
+		}
+	}
+
+	
+	@Override
+	protected Image getImageToDraw() {
+		if (isPoisonous()) {
+			return scaledPoisonousImage;
+		} else {
+			return super.getImageToDraw();
+		}
+	}
+
+	public synchronized double getRadius() {
+		return radius;
+	}
+	
+	public synchronized boolean isPoisonous() {
+		return poisonous;
+	}
+	
+	public void setPoisonous(boolean poisonous) {
+		this.poisonous = poisonous;
+	}
 	
 	@Override
 	public synchronized void update() {
+		setPoisonous(getFacade().isPoisonous(getFood()));
 		setRadius(getFacade().getRadius(getFood()));
 		double[] xy = getFacade().getLocation(getFood());
 		setCenterLocation(getScreen().getScreenX(xy[0]), getScreen().getScreenY(xy[1]));
@@ -67,8 +125,5 @@ public class FoodSprite extends ImageSprite<Food> {
 		return !getFacade().isTerminated(food);
 	}
 
-	public synchronized double getRadius() {
-		return radius;
-	}
 
 }

OGP1718-Worms/src-provided/worms/internal/gui/game/sprites/ProjectileSprite.java

@@ -0,0 +1,143 @@
+package worms.internal.gui.game.sprites;
+
+import java.awt.Color;
+import java.awt.Graphics2D;
+import java.util.Collections;
+import java.util.LinkedList;
+import java.util.List;
+
+import worms.internal.gui.GUIUtils;
+import worms.internal.gui.game.PlayGameScreen;
+import worms.internal.gui.game.Sprite;
+import worms.model.Projectile;
+
+public class ProjectileSprite extends Sprite<Projectile> {
+
+	private static final int MIN_DISPLAY_SIZE = 3; // pixels
+	private static final int MAX_DISPLAY_SIZE = 10; // pixels
+	private static final int DISPLAY_SCALE = 10;
+
+	private static final int NB_HISTORY = 15;
+	private static final Color[] colors = new Color[NB_HISTORY];
+	static {
+		for (int i = 0; i < colors.length; i++) {
+			float t = (float) i / colors.length;
+			colors[i] = new Color(1.0F, (1 - t), 0, 0.8F);
+		}
+	}
+
+	private final Projectile projectile;
+
+	private double sizeInPixels;
+
+	@SuppressWarnings("serial")
+	private static class LimitedQueue<E> extends LinkedList<E> {
+		private int limit;
+
+		public LimitedQueue(int limit) {
+			this.limit = limit;
+		}
+
+		@Override
+		public boolean add(E o) {
+			boolean result = super.add(o);
+			while (size() > limit) {
+				super.remove();
+			}
+			return result;
+		}
+	}
+
+	private final List<double[]> lastLocations = Collections.synchronizedList(new LimitedQueue<double[]>(
+			NB_HISTORY));
+	private boolean moving;
+
+	public ProjectileSprite(PlayGameScreen screen, Projectile projectile) {
+		super(screen);
+		this.projectile = projectile;
+		this.moving = true;
+	}
+
+	@Override
+	public synchronized void draw(Graphics2D g) {
+		if (moving) {
+			for (int i = 0; i < lastLocations.size(); i++) {
+				double[] loc = lastLocations.get(i);
+				g.setColor(colors[i]);
+				double t = (double) (i + 1) / lastLocations.size();
+				double size = sizeInPixels * t * t * t;
+				g.fill(GUIUtils.circleAt(loc[0], loc[1], size));
+			}
+		} else {
+			g.setColor(colors[NB_HISTORY-1]);
+			g.fill(GUIUtils.circleAt(getCenterX(), getCenterY(), sizeInPixels));
+		}
+	}
+
+	@Override
+	public Projectile getObject() {
+		return getProjectile();
+	}
+
+	public Projectile getProjectile() {
+		return projectile;
+	}
+
+	public synchronized void setSize(double sizeInPixels) {
+		this.sizeInPixels = Math.min(MAX_DISPLAY_SIZE,
+				Math.max(MIN_DISPLAY_SIZE, DISPLAY_SCALE * sizeInPixels));
+	}
+
+	@Override
+	public double getHeight(Graphics2D g) {
+		return sizeInPixels;
+	}
+
+	@Override
+	public double getWidth(Graphics2D g) {
+		return sizeInPixels;
+	}
+
+	@Override
+	public boolean isObjectAlive() {
+		return !getFacade().isTerminated(getProjectile());
+	}
+	
+	@Override
+	public synchronized void update() {
+		setSize(getScreen().worldToScreenDistance(getFacade().getRadius(getProjectile())));
+		double[] loc = getFacade().getLocation(getProjectile());
+		setCenterLocation(getScreen().getScreenX(loc[0]), getScreen().getScreenY(loc[1]));
+	}
+
+	@Override
+	public synchronized void setCenterLocation(double x, double y) {
+		super.setCenterLocation(x, y);
+		if (moving && !lastLocations.isEmpty()) {
+			// do some averaving to show some intermediate positions for
+			// fast-moving object (rifle projectiles)
+
+			if (lastLocations.size() > 1) {
+				double[] c1 = lastLocations.get(lastLocations.size() - 1);
+				double[] c2 = lastLocations.get(0);
+				lastLocations.add(new double[] { (c1[0] + c2[0]) / 2,
+						(c1[1] + c2[1]) / 2 });
+			}
+			double[] prev = lastLocations.get(lastLocations.size() - 1);
+			lastLocations.remove(prev);
+
+			for (int i = 0; i < NB_HISTORY; i++) {
+				if (prev != null) {
+					double t = (double) i / (NB_HISTORY);
+					lastLocations.add(new double[] { t * x + (1 - t) * prev[0],
+							t * y + (1 - t) * prev[1] });
+				}
+			}
+		}
+		lastLocations.add(new double[] { x, y });
+	}
+
+	public synchronized void setDoneMoving() {
+		this.moving = false;
+	}
+}

OGP1718-Worms/src-provided/worms/programs/IProgramFactory.java

@@ -0,0 +1,443 @@
+package worms.programs;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import worms.util.ModelException;
+import worms.util.MustNotImplementException;
+
+/**
+ * A program factory is used by the parser ({@link ProgramParser}) to construct
+ * an in-memory representation of your program. For example, when reading the
+ * program source code
+ * 
+ * <pre>
+ * print 2.0
+ * </pre>
+ * 
+ * the parser will create a Program object by (conceptually) executing the
+ * following code:
+ * 
+ * <pre>
+ * factory.createProgram(Collections.emptyList(),
+ * 		factory.createPrintStatement(factory.createDoubleLiteral(2.0)));
+ * </pre>
+ * 
+ * on the returned factory object.
+ * 
+ * <p>
+ * For testing, you may use the methods from {@link ProgramParser} yourself.
+ * </p>
+ *  
+ * <p>
+ * You should declare your class as follows:<code><pre>
+ * public class ProgramFactory implements IProgramFactory&lt;MyExpression, MyStatement, MyProc, Program&gt;
+ * </pre></code> where MyExpression, MyStatement, MyProc, and Program are your classes
+ * for representing expressions, statements, procedure definitions, and programs,
+ * respectively.
+ * 
+ * <p>
+ * The SourceLocation object in the methods defined by this factory refers to
+ * the location (line and column) in the text file where the statement or
+ * expression begins.
+ * 
+ * @param <E>
+ *            Your class for representing an expression.
+ * @param <S>
+ *            Your class for representing a statement.
+ * @param <P>
+ *            Your class for representing a procedure.
+ * @param <Program>
+ *            Your class for representing a program (should be Program).
+ * 
+ * 
+ */
+public interface IProgramFactory<E, S, P, Program> {
+
+	/* PROGRAM */
+
+	/**
+	 * Create a program from the given arguments.
+	 * 
+	 * @param procs
+	 *            The procedure definitions for the program.
+	 * @param main
+	 *            The main statement of the program. Most likely this is a
+	 *            sequence statement.
+	 * @return A new program.
+	 */
+	public Program createProgram(List<P> procs, S main) throws ModelException;
+
+	/**
+	 * Create a program from the given argument.
+	 * 
+	 * @param main
+	 *            The main statement of the program. Most likely this is a
+	 *            sequence statement.
+	 * @return A new program without procedure definitions.
+	 */
+	public default Program createProgram(S main) throws ModelException {
+		return createProgram(new ArrayList<P>(), main);
+	}
+
+	/* PROCEDURE DEFINITIONS */
+
+	/**
+	 * Create a procedure definition with the given name and body.
+	 * 
+	 * @param procedureName
+	 *            The name of the procedure
+	 * @param body
+	 *            The body of the procedure.
+	 */
+	public P createProcedureDefinition(String procedureName, S body, SourceLocation sourceLocation);
+
+	/* STATEMENTS */
+
+	/**
+	 * Create a statement that assigns the value obtained by evaluating the
+	 * given expression to a variable with the given name.
+	 */
+	public S createAssignmentStatement(String variableName, E value, SourceLocation sourceLocation)
+			throws ModelException;
+
+	/**
+	 * Create a print statement that prints the value obtained by evaluating the
+	 * given expression.
+	 */
+	public S createPrintStatement(E value, SourceLocation sourceLocation) throws ModelException;
+
+	/**
+	 * Create a turn statement that makes the worm that is executing the program
+	 * turn by the amount obtained by evaluating the given expression.
+	 */
+	public S createTurnStatement(E angle, SourceLocation location) throws ModelException;
+
+	/**
+	 * Create a statement that makes the worm that is executing the program move
+	 * one step.
+	 */
+	public S createMoveStatement(SourceLocation location) throws ModelException;
+
+	/**
+	 * Returns a statement that makes the worm that is executing the program jump.
+	 */
+	public S createJumpStatement(SourceLocation location) throws ModelException;
+
+	/**
+	 * Returns a statement that makes the worm that is executing the program eat.
+	 */
+	public S createEatStatement(SourceLocation location);
+
+	/**
+	 * Returns a statement that makes the worm that is executing the program fire
+	 * a weapon.
+	 */
+	public S createFireStatement(SourceLocation location) throws ModelException;
+
+	/**
+	 * Create a sequence of statements involving the given list of statements.
+	 */
+	public S createSequenceStatement(List<S> statements, SourceLocation sourceLocation) throws ModelException;
+
+	/**
+	 * Create an if-then-else statement involving the given condition and the
+	 * given then-part and else-part.
+	 *    The else-part may be null.
+	 */
+	public S createIfStatement(E condition, S ifBody, S elseBody, SourceLocation sourceLocation) throws ModelException;
+
+	/**
+	 * Create a while statement involving the given condition and given body.
+	 */
+	public S createWhileStatement(E condition, S body, SourceLocation sourceLocation) throws ModelException;
+
+	/**
+	 * Create a break statement.
+	 */
+	public default S createBreakStatement(SourceLocation sourceLocation)
+			throws ModelException, MustNotImplementException {
+		// Individual students must not work out this method.
+		throw new MustNotImplementException();
+	}
+
+	/**
+	 * Create an invoke statement that invokes the procedure with the given name.
+	 */
+	public default S createInvokeStatement(String procedureName, SourceLocation sourceLocation)
+			throws ModelException, MustNotImplementException {
+		// Individual students must not work out this method.
+		throw new MustNotImplementException();
+	}
+
+	/* EXPRESSIONS */
+
+	/**
+	 * Create an expression that evaluates to the current value of the given
+	 * variable.
+	 */
+	public E createReadVariableExpression(String variableName, SourceLocation sourceLocation) throws ModelException;
+
+	/**
+	 * Creates an expression that represents a literal double value.
+	 */
+	public E createDoubleLiteralExpression(double value, SourceLocation location) throws ModelException;
+
+	/**
+	 * Creates an expression that represents a literal boolean value.
+	 */
+	public E createBooleanLiteralExpression(boolean value, SourceLocation location) throws ModelException;
+
+	/**
+	 * Creates an expression that represents the null value.
+	 */
+	public E createNullExpression(SourceLocation location) throws ModelException;
+
+	/**
+	 * Creates an expression that represents the self value, evaluating to the
+	 * worm that executes the program.
+	 */
+	public E createSelfExpression(SourceLocation location) throws ModelException;
+
+	/**
+	 * Returns an expression that evaluates to the addition of the values
+	 * obtained by evaluating the given left and second expressions.
+	 */
+	public E createAdditionExpression(E left, E right, SourceLocation location) throws ModelException;
+
+	/**
+	 * Returns an expression that evaluates to the subtraction of the values
+	 * obtained by evaluating the first and second given expressions.
+	 */
+	public default E createSubtractionExpression(E left, E right, SourceLocation location)
+			throws ModelException, MustNotImplementException {
+		throw new MustNotImplementException();
+	}
+
+	/**
+	 * Returns an expression that evaluates to the multiplication of the values
+	 * obtained by evaluating the first and second given expressions.
+	 */
+	public default E createMultiplicationExpression(E left, E right, SourceLocation location)
+			throws ModelException, MustNotImplementException {
+		throw new MustNotImplementException();
+	}
+
+	/**
+	 * Returns an expression that evaluates to the division of the values
+	 * obtained by evaluating the first and second given expressions.
+	 */
+	public default E createDivisionExpression(E left, E right, SourceLocation location)
+			throws ModelException, MustNotImplementException {
+		throw new MustNotImplementException();
+	}
+
+	/**
+	 * Returns an expression that evaluates to the square root of the value
+	 * obtained by evaluating the given expression.
+	 */
+	public default E createSqrtExpression(E e, SourceLocation location)
+			throws ModelException, MustNotImplementException {
+		throw new MustNotImplementException();
+	}
+
+	/**
+	 * Returns an expression that evaluates to the sine of the value
+	 * obtained by evaluating the given expression.
+	 */
+	public default E createSinExpression(E e, SourceLocation location)
+			throws ModelException, MustNotImplementException {
+		throw new MustNotImplementException();
+	}
+
+	/**
+	 * Returns an expression that evaluates to the cosine of the value
+	 * obtained by evaluating the given expression.
+	 */
+	public default E createCosExpression(E e, SourceLocation location)
+			throws ModelException, MustNotImplementException {
+		throw new MustNotImplementException();
+	}
+
+	/**
+	 * Returns an expression that evaluates to the conjunction of the values
+	 * obtained by evaluating the given left and right expressions.
+	 */
+	public E createAndExpression(E left, E right, SourceLocation sourceLocation) throws ModelException;
+
+	/**
+	 * Returns an expression that evaluates to the disjunction of the values
+	 * obtained by evaluating the given left and right expressions.
+	 */
+	public default E createOrExpression(E left, E right, SourceLocation sourceLocation)
+			throws ModelException, MustNotImplementException {
+		throw new MustNotImplementException();
+	}
+
+	/**
+	 * Returns an expression that evaluates to true when the given expression
+	 * evaluates to false, and vice versa.
+	 */
+	public E createNotExpression(E expression, SourceLocation sourceLocation) throws ModelException;
+
+	/**
+	 * Returns an expression that evaluates to true if the evaluation of the
+	 * left expression yields a value that is equal to the value obtained by
+	 * evaluating the right expression.
+	 */
+	public E createEqualityExpression(E left, E right, SourceLocation location) throws ModelException;
+
+	/**
+	 * Returns an expression that evaluates to true if the evaluation of the
+	 * left expression yields a value that is different from the value obtained by
+	 * evaluating the right expression.
+	 */
+	public default E createInequalityExpression(E left, E right, SourceLocation sourceLocation)
+			throws ModelException, MustNotImplementException {
+		throw new MustNotImplementException();
+	}
+
+	/**
+	 * Returns an expression that evaluates to true if the evaluation of the
+	 * left expression yields a value that is less than the value obtained by
+	 * evaluating the right expression.
+	 */
+	public E createLessThanExpression(E left, E right, SourceLocation location);
+
+	/**
+	 * Returns an expression that evaluates to true if the evaluation of the
+	 * left expression yields a value that is less than or equal to the value obtained by
+	 * evaluating the right expression.
+	 */
+	public default E createLessThanOrEqualExpression(E left, E right, SourceLocation sourceLocation)
+			throws ModelException, MustNotImplementException {
+		throw new MustNotImplementException();
+	}
+
+	/**
+	 * Returns an expression that evaluates to true if the evaluation of the
+	 * left expression yields a value that is greater than the value obtained by
+	 * evaluating the right expression.
+	 */
+	public default E createGreaterThanExpression(E left, E right, SourceLocation sourceLocation)
+			throws ModelException, MustNotImplementException {
+		throw new MustNotImplementException();
+	}
+
+	/**
+	 * Returns an expression that evaluates to true if the evaluation of the
+	 * left expression yields a value that is greater than or equal to the value obtained by
+	 * evaluating the right expression.
+	 */
+	public default E createGreaterThanOrEqualExpression(E left, E right, SourceLocation sourceLocation)
+			throws ModelException, MustNotImplementException {
+		throw new MustNotImplementException();
+	}
+
+	/**
+	 * Returns an expression that evaluates to the position along the x-axis of
+	 * the game object to which the given expression evaluates.
+	 */
+	public default E createGetXExpression(E e, SourceLocation location)
+			throws ModelException, MustNotImplementException {
+		throw new MustNotImplementException();
+	}
+
+	/**
+	 * Returns an expression that evaluates to the position along the y-axis of
+	 * the game object to which the given expression evaluates.
+	 */
+	public default E createGetYExpression(E e, SourceLocation location)
+			throws ModelException, MustNotImplementException {
+		throw new MustNotImplementException();
+	}
+
+	/**
+	 * Returns an expression that evaluates to the radius of the game object to which
+	 * the given expression evaluates.
+	 */
+	public default E createGetRadiusExpression(E e, SourceLocation location)
+			throws ModelException, MustNotImplementException {
+		throw new MustNotImplementException();
+	}
+
+	/**
+	 * Returns an expression that evaluates to the direction of the game object to which
+	 * the given expression evaluates.
+	 */
+	public default E createGetDirectionExpression(E entity, SourceLocation location)
+			throws ModelException, MustNotImplementException {
+		throw new MustNotImplementException();
+	}
+
+	/**
+	 * Returns an expression that evaluates to the number of action points of the worm to which
+	 * the given expression evaluates.
+	 */
+	public default E createGetActionPointsExpression(E entity, SourceLocation sourceLocation)
+			throws ModelException, MustNotImplementException {
+		throw new MustNotImplementException();
+	}
+
+	/**
+	 * Returns an expression that evaluates to the maximum number of action points of the worm to which
+	 * the given expression evaluates.
+	 */
+	public default E createGetMaxActionPointsExpression(E entity, SourceLocation sourceLocation)
+			throws ModelException, MustNotImplementException {
+		throw new MustNotImplementException();
+	}
+
+	/**
+	 * Returns an expression that evaluates to the number of hit points of the game object to which
+	 * the given expression evaluates.
+	 */
+	public default E createHitPointsExpression(E entity, SourceLocation sourceLocation)
+			throws ModelException, MustNotImplementException {
+		throw new MustNotImplementException();
+	}
+
+	public E createSearchObjectExpression(E angleDelta, SourceLocation sourceLocation) throws ModelException;
+
+	/**
+	 * Returns an expression that evaluates to a boolean reflecting whether or not
+	 * the executing worm belongs to the same team as the worm to which the given
+	 * expression evaluates.
+	 */
+	public default E createSameTeamExpression(E entity, SourceLocation sourceLocation)
+			throws ModelException, MustNotImplementException {
+		// Individual students must not work out this method.
+		throw new MustNotImplementException();
+	}
+
+	/**
+	 * Returns an expression that evaluates to the distance between the executing worm
+	 * and the game object to which the given expression evaluates.
+	 */
+	public E createDistanceExpression(E entity, SourceLocation sourceLocation) throws ModelException;
+
+	/**
+	 * Returns a boolean indicating whether or not the object to which the given
+	 * expression evaluates is a worm.
+	 */
+	public E createIsWormExpression(E entity, SourceLocation sourceLocation) throws ModelException;
+
+	/**
+	 * Returns a boolean indicating whether or not the object to which the given
+	 * expression evaluates is a portion of food.
+	 */
+	public default E createIsFoodExpression(E entity, SourceLocation sourceLocation)
+			throws ModelException, MustNotImplementException {
+		throw new MustNotImplementException();
+	}
+
+	/**
+	 * Returns a boolean indicating whether or not the object to which the given
+	 * expression evaluates is a projectile.
+	 */
+	public default E createIsProjectileExpression(E entity, SourceLocation sourceLocation)
+			throws ModelException, MustNotImplementException {
+		throw new MustNotImplementException();
+	}
+
+}

OGP1718-Worms/src-provided/worms/programs/ParseOutcome.java

@@ -0,0 +1,20 @@
+package worms.programs;
+
+import java.util.List;
+
+import worms.programs.SuccessOrFail.WrappedSuccessOrFail;
+
+public class ParseOutcome<P> extends WrappedSuccessOrFail<P, List<String>> {
+	
+	private ParseOutcome(SuccessOrFail<P, List<String>> outcome) {
+		super(outcome);
+	}
+
+	public static <P> ParseOutcome<P> success(P p) {
+		return new ParseOutcome<>(DefaultSuccessOrFail.success(p));
+	}
+
+	public static <P> ParseOutcome<P> failure(List<String> errors) {
+		return new ParseOutcome<>(DefaultSuccessOrFail.failure(errors));
+	}
+}

OGP1718-Worms/src-provided/worms/programs/ProgramParser.java

@@ -0,0 +1,245 @@
+package worms.programs;
+
+import java.io.IOException;
+import java.net.URL;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
+import org.antlr.v4.runtime.BaseErrorListener;
+import org.antlr.v4.runtime.CharStream;
+import org.antlr.v4.runtime.CharStreams;
+import org.antlr.v4.runtime.CommonTokenStream;
+import org.antlr.v4.runtime.RecognitionException;
+import org.antlr.v4.runtime.Recognizer;
+
+import worms.programs.IProgramFactory;
+import worms.programs.internal.parser.ParserVisitor;
+import worms.programs.internal.parser.generated.WormsProgramLexer;
+import worms.programs.internal.parser.generated.WormsProgramParser;
+import worms.internal.gui.GUIUtils;
+import worms.model.Program;
+
+/**
+ * Parser for Worms programs.
+ * 
+ * To use this class, first create an implementation of {@link IProgramFactory}:
+ * 
+ * <pre>
+ * <code>
+ * IProgramFactory&lt;MyExpression, MyStatement, MyProcedure, Program&gt; factory = new ProgramFactory();
+ * </code>
+ * </pre>
+ * 
+ * The easiest way to use this class for parsing a Program given as a String is
+ * via the {@link #parseProgramFromString(String, IProgramFactory)} method:
+ * 
+ * <pre>
+ * <code>
+ * Program program = ProgramParser.parseProgram(text, factory);
+ * </code>
+ * </pre>
+ * 
+ * For more control, create an instance of this class:
+ * 
+ * <pre>
+ * <code>
+ * ProgramParser&lt;MyExpression, MyStatement, Task&gt; parser = new ProgramParser<>(factory);
+ * </code>
+ * </pre>
+ * 
+ * Finally, parse a string or file: <code><pre>
+ * ParseOurcome&lt;Program&gt; parseResult = parser.parse(textToParse);
+ * </pre></code>
+ * 
+ * If parsing is successful, <code>parseResult.isSuccess()</code> returns true
+ * and <code>parseResult.getSuccessValue()</code> returns the created program.
+ * 
+ * If parsing was not successful, <code>parseResult.ifSuccess()</code> returns
+ * false and <code>parseResult.getFailValue()</code> returns the list of errors
+ * during parsing.
+ * 
+ *
+ * @param E
+ *            The type of expressions
+ * @param S
+ *            The type of statements
+ * @param P
+ *            The type of procedures
+ * @param Prg
+ *            The type of program that is created; should be your
+ *            worms.model.Program class
+ */
+public class ProgramParser<E, S, P, Prg> {
+
+	private final IProgramFactory<E, S, P, Prg> factory;
+
+	private final List<String> errors = new ArrayList<>();
+
+	protected ProgramParser(IProgramFactory<E, S, P, Prg> factory) {
+		if (factory == null) {
+			throw new NullPointerException("Factory must be effective.");
+		}
+		this.factory = factory;
+	}
+
+	public IProgramFactory<E, S, P, Prg> getFactory() {
+		return factory;
+	}
+
+	/**
+	 * Returns the program that results from parsing the given string, or
+	 * Optional.empty() if parsing has failed.
+	 * 
+	 * When parsing has failed, the error messages can be retrieved with the
+	 * getErrors() method.
+	 *
+	 */
+	public ParseOutcome<Prg> parseString(String string) {
+		return parse(CharStreams.fromString(string));
+	}
+
+	/**
+	 * Returns the program that results from parsing the file with the given name,
+	 * or Optional.empty() if parsing has failed.
+	 * 
+	 * When parsing has failed, the error messages can be retrieved with the
+	 * getErrors() method.
+	 */
+	public ParseOutcome<Prg> parseFile(String filename) throws IOException {
+		return parse(CharStreams.fromStream(GUIUtils.openResource(filename)));
+	}
+
+	/**
+	 * Returns the program that results from parsing the file with the given URL, or
+	 * Optional.empty() if parsing has failed.
+	 * 
+	 * When parsing has failed, the error messages can be retrieved with the
+	 * getErrors() method.
+	 */
+	public ParseOutcome<Prg> parseFile(URL url) throws IOException {
+		return parse(CharStreams.fromStream(GUIUtils.openResource(url)));
+	}
+
+	/**
+	 * Returns the program that results from parsing the given CharStream, or
+	 * Optional.empty() if parsing has failed.
+	 * 
+	 * When parsing has failed, the error messages can be retrieved with the
+	 * getErrors() method.
+	 * 
+	 * @note For more convenient methods, see the
+	 *       {@link #parseProgramFromString(String, ITaskFactory, List)},
+	 *       {@link #parseProgramFromFile(String, ITaskFactory, List)},
+	 *       {@link #parseString(String, List)} and {@link #parseFile(String, List)}
+	 *       methods.
+	 */
+	protected ParseOutcome<Prg> parse(CharStream input) {
+		reset();
+
+		WormsProgramLexer lexer = new WormsProgramLexer(input);
+		WormsProgramParser parser = new WormsProgramParser(new CommonTokenStream(lexer));
+		parser.addErrorListener(new BaseErrorListener() {
+			@Override
+			public void syntaxError(Recognizer<?, ?> recognizer, Object offendingSymbol, int line,
+					int charPositionInLine, String msg, RecognitionException e) {
+				errors.add(msg + " (" + line + ", " + charPositionInLine + ")");
+			}
+		});
+		ParserVisitor<E, S, P, Prg> visitor = new ParserVisitor<>(factory);
+		try {
+			visitor.visitProgram(parser.program());
+			if (errors.isEmpty()) {
+				assert visitor.getMain() != null;
+				Prg program = factory.createProgram(visitor.getProcedures(), visitor.getMain());
+				if (program != null) {
+					return ParseOutcome.success(program);
+				}
+				errors.add("Factory did not return a Program object");
+			}
+		} catch (Exception e) {
+			e.printStackTrace();
+			errors.add(e.toString());
+		}
+		return ParseOutcome.failure(errors);
+	}
+
+	protected void reset() {
+		this.errors.clear();
+	}
+
+	public List<String> getErrors() {
+		return Collections.unmodifiableList(errors);
+	}
+
+	/**
+	 * Create a new parser from the given factory.
+	 * 
+	 * @param factory
+	 * @return
+	 */
+	public static <E, S, T, P> ProgramParser<E, S, T, P> create(IProgramFactory<E, S, T, P> factory) {
+		return new ProgramParser<>(factory);
+	}
+
+	/**
+	 * Parse program text using the given factory.
+	 * 
+	 * @param text
+	 *            The text to parse
+	 * @param factory
+	 *            The factory to use
+	 * @return The parsed program, if any, or null if an error occurred during
+	 *         parsing.
+	 */
+	public static Program parseProgramFromString(String text, IProgramFactory<?, ?, ?, ? extends Program> factory) {
+		ProgramParser<?, ?, ?, ? extends Program> parser = create(factory);
+		ParseOutcome<? extends Program> outcome = parser.parseString(text);
+		if (outcome.isFail()) {
+			System.out.println("Parsing failed: " + outcome.getFailValue());
+			return null;
+		}
+		return outcome.getSuccessValue();
+	}
+
+	/**
+	 * Parse program from a file using the given factory.
+	 * 
+	 * @param filename
+	 *            The filename from which to read the program text
+	 * @param factory
+	 *            The factory to use
+	 * @return The parsed program, if any, or null if an error occurred during
+	 *         parsing.
+	 */
+	public static Program parseProgramFromFile(String filename, IProgramFactory<?, ?, ?, ? extends Program> factory)
+			throws IOException {
+		ProgramParser<?, ?, ?, ? extends Program> parser = create(factory);
+		ParseOutcome<? extends Program> outcome = parser.parseFile(filename);
+		if (outcome.isFail()) {
+			System.out.println("Parsing failed: " + outcome.getFailValue());
+			return null;
+		}
+		return outcome.getSuccessValue();
+	}
+
+	/**
+	 * Parse program from a file using the given factory.
+	 * 
+	 * @param filename
+	 *            The filename from which to read the program text
+	 * @param factory
+	 *            The factory to use
+	 * @return The parsed program, if any, or null if an error occurred during
+	 *         parsing.
+	 */
+	public static Program parseProgramFromURL(URL url, IProgramFactory<?, ?, ?, Program> factory) throws IOException {
+		ProgramParser<?, ?, ?, Program> parser = create(factory);
+		ParseOutcome<Program> outcome = parser.parseFile(url);
+		if (outcome.isFail()) {
+			System.out.println("Parsing failed: " + outcome.getFailValue());
+			return null;
+		}
+		return outcome.getSuccessValue();
+	}
+}

OGP1718-Worms/src-provided/worms/programs/SourceLocation.java

@@ -0,0 +1,61 @@
+package worms.programs;
+
+import be.kuleuven.cs.som.annotate.Value;
+
+/**
+ * A source location represents a position in a source file,
+ * denoted by the line and column (position in the line) of 
+ * a certain character in the file.
+ * 
+ * This class is a value class.
+ */
+@Value
+public final class SourceLocation {
+
+	private final int line;
+	private final int column;
+	
+	public SourceLocation(int line, int column) {
+		this.line = line;
+		this.column = column;
+	}
+	
+	public int getLine() {
+		return line;
+	}
+	
+	public int getColumn() {
+		return column;
+	}
+
+	@Override
+	public int hashCode() {
+		final int prime = 31;
+		int result = 1;
+		result = prime * result + column;
+		result = prime * result + line;
+		return result;
+	}
+
+	@Override
+	public boolean equals(Object obj) {
+		if (this == obj)
+			return true;
+		if (obj == null)
+			return false;
+		if (getClass() != obj.getClass())
+			return false;
+		SourceLocation other = (SourceLocation) obj;
+		if (column != other.column)
+			return false;
+		if (line != other.line)
+			return false;
+		return true;
+	}
+	
+	@Override
+	public String toString() {
+		return String.format("@%d,%d", line, column);
+	}
+	
+}

OGP1718-Worms/src-provided/worms/programs/SuccessOrFail.java

@@ -0,0 +1,100 @@
+package worms.programs;
+
+/**
+ * An interface that holds either a success value of type S or a failure value of type F.
+ */
+public interface SuccessOrFail<S, F> {
+
+	public boolean isSuccess();
+
+	public S getSuccessValue();
+
+	public F getFailValue();
+
+	public default boolean isFail() {
+		return !isSuccess();
+	}
+
+	public static class DefaultSuccessOrFail<S, F> implements SuccessOrFail<S, F> {
+		private final boolean success;
+		private final F failValue;
+		private final S successValue;
+
+		private DefaultSuccessOrFail(boolean success, S successValue, F failValue) {
+			if (success && failValue != null) {
+				throw new IllegalArgumentException();
+			}
+			if (!success && successValue != null) {
+				throw new IllegalArgumentException();
+			}
+			this.success = success;
+			this.successValue = successValue;
+			this.failValue = failValue;
+		}
+
+		@Override
+		public boolean isSuccess() {
+			return success;
+		}
+
+		@Override
+		public F getFailValue() {
+			return failValue;
+		}
+
+		@Override
+		public S getSuccessValue() {
+			return successValue;
+		}
+
+		public static <S, F> SuccessOrFail<S, F> success(S successValue) {
+			return new DefaultSuccessOrFail<>(true, successValue, null);
+		}
+
+		public static <S, F> SuccessOrFail<S, F> failure(F failValue) {
+			return new DefaultSuccessOrFail<>(false, null, failValue);
+		}
+
+		@Override
+		public String toString() {
+			if (isSuccess()) {
+				return "SUCCESS value: " + getSuccessValue();
+			} else {
+				return "FAIL value: " + getFailValue();
+			}
+		}
+
+	}
+
+	public static class WrappedSuccessOrFail<S, F> implements SuccessOrFail<S, F> {
+		private final SuccessOrFail<S, F> wrapped;
+
+		protected WrappedSuccessOrFail(SuccessOrFail<S, F> wrapped) {
+			if (wrapped == null) {
+				throw new NullPointerException();
+			}
+			this.wrapped = wrapped;
+		}
+
+		@Override
+		public boolean isSuccess() {
+			return wrapped.isSuccess();
+		}
+
+		@Override
+		public S getSuccessValue() {
+			return wrapped.getSuccessValue();
+		}
+
+		@Override
+		public F getFailValue() {
+			return wrapped.getFailValue();
+		}
+
+		@Override
+		public String toString() {
+			return wrapped.toString();
+		}
+
+	}
+}

OGP1718-Worms/src-provided/worms/programs/internal/parser/ParserVisitor.java

@@ -0,0 +1,392 @@
+package worms.programs.internal.parser;
+
+import java.util.Collections;
+import java.util.List;
+import java.util.stream.Collectors;
+
+import org.antlr.v4.runtime.ParserRuleContext;
+import org.antlr.v4.runtime.Token;
+
+import worms.programs.IProgramFactory;
+import worms.programs.SourceLocation;
+import worms.programs.internal.parser.generated.WormsProgramBaseVisitor;
+import worms.programs.internal.parser.generated.WormsProgramLexer;
+import worms.programs.internal.parser.generated.WormsProgramParser.AddSubExpressionContext;
+import worms.programs.internal.parser.generated.WormsProgramParser.AndOrExpressionContext;
+import worms.programs.internal.parser.generated.WormsProgramParser.AssignmentStatementContext;
+import worms.programs.internal.parser.generated.WormsProgramParser.BreakStatementContext;
+import worms.programs.internal.parser.generated.WormsProgramParser.ComparisonExpressionContext;
+import worms.programs.internal.parser.generated.WormsProgramParser.ConstantExpressionContext;
+import worms.programs.internal.parser.generated.WormsProgramParser.CosExpressionContext;
+import worms.programs.internal.parser.generated.WormsProgramParser.DistanceExpressionContext;
+import worms.programs.internal.parser.generated.WormsProgramParser.EatActionContext;
+import worms.programs.internal.parser.generated.WormsProgramParser.FalseLiteralExpressionContext;
+import worms.programs.internal.parser.generated.WormsProgramParser.FireActionContext;
+import worms.programs.internal.parser.generated.WormsProgramParser.GetAPExpressionContext;
+import worms.programs.internal.parser.generated.WormsProgramParser.GetDirectionExpressionContext;
+import worms.programs.internal.parser.generated.WormsProgramParser.GetHPExpressionContext;
+import worms.programs.internal.parser.generated.WormsProgramParser.GetMaxAPExpressionContext;
+import worms.programs.internal.parser.generated.WormsProgramParser.GetRadiusExpressionContext;
+import worms.programs.internal.parser.generated.WormsProgramParser.GetXExpressionContext;
+import worms.programs.internal.parser.generated.WormsProgramParser.GetYExpressionContext;
+import worms.programs.internal.parser.generated.WormsProgramParser.IfStatementContext;
+import worms.programs.internal.parser.generated.WormsProgramParser.InvokeStatementContext;
+import worms.programs.internal.parser.generated.WormsProgramParser.IsFoodExpressionContext;
+import worms.programs.internal.parser.generated.WormsProgramParser.IsProjectileExpressionContext;
+import worms.programs.internal.parser.generated.WormsProgramParser.IsWormExpressionContext;
+import worms.programs.internal.parser.generated.WormsProgramParser.JumpActionContext;
+import worms.programs.internal.parser.generated.WormsProgramParser.MoveActionContext;
+import worms.programs.internal.parser.generated.WormsProgramParser.MulDivExpressionContext;
+import worms.programs.internal.parser.generated.WormsProgramParser.NotExpressionContext;
+import worms.programs.internal.parser.generated.WormsProgramParser.NullExpressionContext;
+import worms.programs.internal.parser.generated.WormsProgramParser.ParenExpressionContext;
+import worms.programs.internal.parser.generated.WormsProgramParser.PrintStatementContext;
+import worms.programs.internal.parser.generated.WormsProgramParser.ProceduredefContext;
+import worms.programs.internal.parser.generated.WormsProgramParser.ProgramContext;
+import worms.programs.internal.parser.generated.WormsProgramParser.ReadVariableExpressionContext;
+import worms.programs.internal.parser.generated.WormsProgramParser.SameTeamExpressionContext;
+import worms.programs.internal.parser.generated.WormsProgramParser.SearchObjExpressionContext;
+import worms.programs.internal.parser.generated.WormsProgramParser.SelfExpressionContext;
+import worms.programs.internal.parser.generated.WormsProgramParser.SequenceStatementContext;
+import worms.programs.internal.parser.generated.WormsProgramParser.SinExpressionContext;
+import worms.programs.internal.parser.generated.WormsProgramParser.SqrtExpressionContext;
+import worms.programs.internal.parser.generated.WormsProgramParser.TrueLiteralExpressionContext;
+import worms.programs.internal.parser.generated.WormsProgramParser.TurnActionContext;
+import worms.programs.internal.parser.generated.WormsProgramParser.WhileStatementContext;
+
+public class ParserVisitor<E, S, P, Prg> extends WormsProgramBaseVisitor<Void> {
+
+	@Override
+	public Void visitProgram(ProgramContext ctx) {
+		procedures = ctx.procdef.stream().map(procdef -> procDefVisitor.visit(procdef)).collect(Collectors.toList());
+		List<S> mainStmts = ctx.programBody.stream().map(stmt -> statementVisitor.visit(stmt))
+				.collect(Collectors.toList());
+		if (mainStmts.size() == 1) {
+			main = mainStmts.get(0);
+		} else {
+			main = factory.createSequenceStatement(mainStmts, toSourceLocation(ctx));
+		}
+		assert main != null;
+		return null;
+	}
+
+	private class ProcedureDefinitionVisitor extends WormsProgramBaseVisitor<P> {
+
+		@Override
+		public P visitProceduredef(ProceduredefContext ctx) {
+			return getFactory().createProcedureDefinition(ctx.procname.getText(), statementVisitor.visit(ctx.body),
+					toSourceLocation(ctx));
+		}
+	}
+
+	private class StatementVisitor extends WormsProgramBaseVisitor<S> {
+
+		@Override
+		public S visitAssignmentStatement(AssignmentStatementContext ctx) {
+			return getFactory().createAssignmentStatement(ctx.variableName.getText(),
+					expressionVisitor.visit(ctx.value), toSourceLocation(ctx));
+		}
+
+		@Override
+		public S visitWhileStatement(WhileStatementContext ctx) {
+			return getFactory().createWhileStatement(expressionVisitor.visit(ctx.condition),
+					statementVisitor.visit(ctx.body), toSourceLocation(ctx));
+		}
+
+		@Override
+		public S visitIfStatement(IfStatementContext ctx) {
+			S ifBody = statementVisitor.visit(ctx.ifbody);
+			S elseBody = null;
+			if (ctx.elsebody != null)
+				elseBody = statementVisitor.visit(ctx.elsebody);
+			return getFactory().createIfStatement(expressionVisitor.visit(ctx.condition), ifBody, elseBody,
+					toSourceLocation(ctx));
+		}
+
+		@Override
+		public S visitPrintStatement(PrintStatementContext ctx) {
+			return getFactory().createPrintStatement(expressionVisitor.visit(ctx.value), toSourceLocation(ctx));
+		}
+
+		@Override
+		public S visitSequenceStatement(SequenceStatementContext ctx) {
+			if (ctx.stmts.size() != 1) {
+				return getFactory().createSequenceStatement(
+						ctx.stmts.stream().map(this::visit).collect(Collectors.toList()), toSourceLocation(ctx));
+			} else {
+				return visit(ctx.stmts.get(0));
+			}
+		}
+
+		@Override
+		public S visitInvokeStatement(InvokeStatementContext ctx) {
+			return getFactory().createInvokeStatement(ctx.procName.getText(), toSourceLocation(ctx));
+		}
+
+		@Override
+		public S visitBreakStatement(BreakStatementContext ctx) {
+			return getFactory().createBreakStatement(toSourceLocation(ctx));
+		}
+
+		@Override
+		public S visitTurnAction(TurnActionContext ctx) {
+			return getFactory().createTurnStatement(expressionVisitor.visit(ctx.angle), toSourceLocation(ctx));
+		}
+
+		@Override
+		public S visitMoveAction(MoveActionContext ctx) {
+			return getFactory().createMoveStatement(toSourceLocation(ctx));
+		}
+
+		@Override
+		public S visitJumpAction(JumpActionContext ctx) {
+			return getFactory().createJumpStatement(toSourceLocation(ctx));
+		}
+
+		@Override
+		public S visitEatAction(EatActionContext ctx) {
+			return getFactory().createEatStatement(toSourceLocation(ctx));
+		}
+
+		@Override
+		public S visitFireAction(FireActionContext ctx) {
+			return getFactory().createFireStatement(toSourceLocation(ctx));
+		}
+
+	}
+
+	private class ExpressionVisitor extends WormsProgramBaseVisitor<E> {
+
+		@Override
+		public E visitReadVariableExpression(ReadVariableExpressionContext ctx) {
+			return getFactory().createReadVariableExpression(ctx.variable.getText(), toSourceLocation(ctx));
+		}
+
+		@Override
+		public E visitConstantExpression(ConstantExpressionContext ctx) {
+			return getFactory().createDoubleLiteralExpression(Double.parseDouble(ctx.value.getText()),
+					toSourceLocation(ctx));
+		}
+
+		@Override
+		public E visitTrueLiteralExpression(TrueLiteralExpressionContext ctx) {
+			return getFactory().createBooleanLiteralExpression(true, toSourceLocation(ctx));
+		}
+
+		@Override
+		public E visitFalseLiteralExpression(FalseLiteralExpressionContext ctx) {
+			return getFactory().createBooleanLiteralExpression(false, toSourceLocation(ctx));
+		}
+
+		@Override
+		public E visitNullExpression(NullExpressionContext ctx) {
+			return getFactory().createNullExpression(toSourceLocation(ctx));
+		}
+
+		@Override
+		public E visitSelfExpression(SelfExpressionContext ctx) {
+			return getFactory().createSelfExpression(toSourceLocation(ctx));
+		}
+
+		@Override
+		public E visitParenExpression(ParenExpressionContext ctx) {
+			return expressionVisitor.visit(ctx.subExpr);
+		}
+
+		@Override
+		public E visitAddSubExpression(AddSubExpressionContext ctx) {
+			switch (ctx.op.getType()) {
+			case WormsProgramLexer.ADD:
+				return getFactory().createAdditionExpression(expressionVisitor.visit(ctx.left),
+						expressionVisitor.visit(ctx.right), toSourceLocation(ctx));
+			case WormsProgramLexer.SUB:
+				return getFactory().createSubtractionExpression(expressionVisitor.visit(ctx.left),
+						expressionVisitor.visit(ctx.right), toSourceLocation(ctx));
+			default:
+				throw new IllegalArgumentException("Unknown operator: " + ctx.op);
+			}
+		}
+
+		@Override
+		public E visitMulDivExpression(MulDivExpressionContext ctx) {
+			switch (ctx.op.getType()) {
+			case WormsProgramLexer.MUL:
+				return getFactory().createMultiplicationExpression(expressionVisitor.visit(ctx.left),
+						expressionVisitor.visit(ctx.right), toSourceLocation(ctx));
+			case WormsProgramLexer.DIV:
+				return getFactory().createDivisionExpression(expressionVisitor.visit(ctx.left),
+						expressionVisitor.visit(ctx.right), toSourceLocation(ctx));
+			default:
+				throw new IllegalArgumentException("Unknown operator: " + ctx.op);
+			}
+		}
+
+		@Override
+		public E visitSqrtExpression(SqrtExpressionContext ctx) {
+			return getFactory().createSqrtExpression(expressionVisitor.visit(ctx.expr), toSourceLocation(ctx));
+		}
+
+		@Override
+		public E visitSinExpression(SinExpressionContext ctx) {
+			return getFactory().createSinExpression(expressionVisitor.visit(ctx.expr), toSourceLocation(ctx));
+		}
+
+		@Override
+		public E visitCosExpression(CosExpressionContext ctx) {
+			return getFactory().createCosExpression(expressionVisitor.visit(ctx.expr), toSourceLocation(ctx));
+		}
+
+		@Override
+		public E visitAndOrExpression(AndOrExpressionContext ctx) {
+			switch (ctx.op.getType()) {
+			case WormsProgramLexer.AND:
+				return getFactory().createAndExpression(expressionVisitor.visit(ctx.left),
+						expressionVisitor.visit(ctx.right), toSourceLocation(ctx));
+			case WormsProgramLexer.OR:
+				return getFactory().createOrExpression(expressionVisitor.visit(ctx.left),
+						expressionVisitor.visit(ctx.right), toSourceLocation(ctx));
+			default:
+				throw new IllegalArgumentException("Unknown operator: " + ctx.op);
+			}
+		}
+
+		@Override
+		public E visitNotExpression(NotExpressionContext ctx) {
+			return getFactory().createNotExpression(expressionVisitor.visit(ctx.expr), toSourceLocation(ctx));
+		}
+
+		@Override
+		public E visitComparisonExpression(ComparisonExpressionContext ctx) {
+			switch (ctx.op.getType()) {
+			case WormsProgramLexer.LT:
+				return getFactory().createLessThanExpression(expressionVisitor.visit(ctx.left),
+						expressionVisitor.visit(ctx.right), toSourceLocation(ctx));
+			case WormsProgramLexer.LTE:
+				return getFactory().createLessThanOrEqualExpression(expressionVisitor.visit(ctx.left),
+						expressionVisitor.visit(ctx.right), toSourceLocation(ctx));
+			case WormsProgramLexer.GT:
+				return getFactory().createGreaterThanExpression(expressionVisitor.visit(ctx.left),
+						expressionVisitor.visit(ctx.right), toSourceLocation(ctx));
+			case WormsProgramLexer.GTE:
+				return getFactory().createGreaterThanOrEqualExpression(expressionVisitor.visit(ctx.left),
+						expressionVisitor.visit(ctx.right), toSourceLocation(ctx));
+			case WormsProgramLexer.EQ:
+				return getFactory().createEqualityExpression(expressionVisitor.visit(ctx.left),
+						expressionVisitor.visit(ctx.right), toSourceLocation(ctx));
+			case WormsProgramLexer.NEQ:
+				return getFactory().createInequalityExpression(expressionVisitor.visit(ctx.left),
+						expressionVisitor.visit(ctx.right), toSourceLocation(ctx));
+			default:
+				throw new IllegalArgumentException("Unknown operand: " + ctx.op);
+			}
+
+		}
+
+		@Override
+		public E visitGetXExpression(GetXExpressionContext ctx) {
+			return getFactory().createGetXExpression(expressionVisitor.visit(ctx.expr), toSourceLocation(ctx));
+		}
+
+		@Override
+		public E visitGetYExpression(GetYExpressionContext ctx) {
+			return getFactory().createGetYExpression(expressionVisitor.visit(ctx.expr), toSourceLocation(ctx));
+		}
+
+		@Override
+		public E visitGetRadiusExpression(GetRadiusExpressionContext ctx) {
+			return getFactory().createGetRadiusExpression(expressionVisitor.visit(ctx.expr), toSourceLocation(ctx));
+		}
+
+		@Override
+		public E visitGetDirectionExpression(GetDirectionExpressionContext ctx) {
+			return getFactory().createGetDirectionExpression(expressionVisitor.visit(ctx.expr), toSourceLocation(ctx));
+		}
+
+		@Override
+		public E visitGetAPExpression(GetAPExpressionContext ctx) {
+			return getFactory().createGetActionPointsExpression(expressionVisitor.visit(ctx.expr),
+					toSourceLocation(ctx));
+		}
+
+		@Override
+		public E visitGetMaxAPExpression(GetMaxAPExpressionContext ctx) {
+			return getFactory().createGetMaxActionPointsExpression(expressionVisitor.visit(ctx.expr),
+					toSourceLocation(ctx));
+		}
+
+		@Override
+		public E visitGetHPExpression(GetHPExpressionContext ctx) {
+			return getFactory().createHitPointsExpression(expressionVisitor.visit(ctx.expr), toSourceLocation(ctx));
+		}
+
+		@Override
+		public E visitSameTeamExpression(SameTeamExpressionContext ctx) {
+			return getFactory().createSameTeamExpression(expressionVisitor.visit(ctx.expr), toSourceLocation(ctx));
+		}
+
+		@Override
+		public E visitSearchObjExpression(SearchObjExpressionContext ctx) {
+			return getFactory().createSearchObjectExpression(expressionVisitor.visit(ctx.expr), toSourceLocation(ctx));
+		}
+
+		@Override
+		public E visitDistanceExpression(DistanceExpressionContext ctx) {
+			return getFactory().createDistanceExpression(expressionVisitor.visit(ctx.expr), toSourceLocation(ctx));
+		}
+
+		@Override
+		public E visitIsWormExpression(IsWormExpressionContext ctx) {
+			return getFactory().createIsWormExpression(expressionVisitor.visit(ctx.expr), toSourceLocation(ctx));
+		}
+
+		@Override
+		public E visitIsFoodExpression(IsFoodExpressionContext ctx) {
+			return getFactory().createIsFoodExpression(expressionVisitor.visit(ctx.expr), toSourceLocation(ctx));
+		}
+
+		@Override
+		public E visitIsProjectileExpression(IsProjectileExpressionContext ctx) {
+			return getFactory().createIsProjectileExpression(expressionVisitor.visit(ctx.expr), toSourceLocation(ctx));
+		}
+
+	}
+
+	private final IProgramFactory<E, S, P, Prg> factory;
+
+	private final ProcedureDefinitionVisitor procDefVisitor = new ProcedureDefinitionVisitor();
+	private final StatementVisitor statementVisitor = new StatementVisitor();
+	private final ExpressionVisitor expressionVisitor = new ExpressionVisitor();
+
+	private S main;
+	private List<P> procedures;
+
+	public ParserVisitor(IProgramFactory<E, S, P, Prg> factory) {
+		if (factory == null) {
+			throw new NullPointerException();
+		}
+		this.factory = factory;
+	}
+
+	private SourceLocation toSourceLocation(ParserRuleContext ctx) {
+		int line = ctx.getStart().getLine();
+		int column = ctx.getStart().getCharPositionInLine();
+		return new SourceLocation(line, column);
+	}
+
+	public IProgramFactory<E, S, P, Prg> getFactory() {
+		return factory;
+	}
+
+	public int toInt(Token z) {
+		return Integer.parseInt(z.getText());
+	}
+
+	public S getMain() {
+		return main;
+	}
+
+	public List<P> getProcedures() {
+		return Collections.unmodifiableList(procedures);
+	}
+
+}

OGP1718-Worms/src-provided/worms/programs/internal/parser/WormsProgram.g4

@@ -0,0 +1,200 @@
+// ANTLR v4 Grammar for controling Worms.
+// Check the tutorial at http://jnb.ociweb.com/jnb/jnbJun2008.html
+// or http://www.antlr.org/ for details.
+
+
+grammar WormsProgram;
+
+@header {
+    package worms.programs.internal.parser.generated;
+}
+
+
+// ------------------------------------------------------------------------
+// --- Eval and Related Definitions ---------------------------------------
+// ------------------------------------------------------------------------
+program:	(procdef+=proceduredef)*
+            (programBody+=statement)*
+;
+
+proceduredef: DEF procname=IDENTIFIER COLON?
+               body=statement
+;
+
+statement:    assignmentStatement
+            | whileStatement
+            | ifStatement    
+            | printStatement
+            | sequenceStatement
+            | invokeStatement                    
+            | breakStatement
+            | actionStatement
+; 
+
+assignmentStatement:   variableName=IDENTIFIER ASSIGN value=expression ';'
+;
+
+whileStatement:    WHILE condition=expression COLON?
+                      body=statement
+;
+
+ifStatement: IF condition=expression COLON?
+                ifbody=statement
+            (ELSE COLON?
+            	elsebody=statement)?
+;
+
+printStatement: PRINT value=expression ';'
+;
+
+sequenceStatement: LEFT_BRACE (stmts+=statement)* RIGHT_BRACE
+; 
+
+invokeStatement: INVOKE procName=IDENTIFIER ';'
+;
+
+
+breakStatement: BREAK ';'
+;
+
+
+actionStatement:  TURN angle=expression ';' #turnAction
+                | MOVE ';' #moveAction
+                | JUMP ';' #jumpAction
+                | EAT ';' #eatAction
+                | FIRE ';' #fireAction
+;
+
+// order here sets order of operations (important for left-recursive expressions!)
+expression:   variable=IDENTIFIER #readVariableExpression
+            | value=NUMBER #constantExpression
+            | TRUE #trueLiteralExpression
+            | FALSE #falseLiteralExpression
+            | NULL #nullExpression
+            | SELF #selfExpression            
+            | LEFT_PAREN subExpr=expression RIGHT_PAREN #parenExpression
+            | left=expression op=(MUL | DIV) right=expression #mulDivExpression
+            | left=expression op=(ADD | SUB) right=expression #addSubExpression
+            | left=expression op=(LT | LTE | GT | GTE | EQ | NEQ) right=expression #comparisonExpression
+            | left=expression op=(AND | OR) right=expression #andOrExpression
+            | SQRT LEFT_PAREN expr=expression RIGHT_PAREN #sqrtExpression
+            | SIN LEFT_PAREN expr=expression RIGHT_PAREN #sinExpression
+            | COS LEFT_PAREN expr=expression RIGHT_PAREN #cosExpression
+            | NOT expr=expression  #notExpression
+            | GETX expr=expression #getXExpression
+            | GETY expr=expression #getYExpression
+            | GETRADIUS expr=expression #getRadiusExpression
+            | GETDIR expr=expression #getDirectionExpression
+            | GETAP expr=expression #getAPExpression
+            | GETMAXAP expr=expression #getMaxAPExpression
+            | GETHP expr=expression #getHPExpression
+            | SAMETEAM expr=expression #sameTeamExpression
+            | SEARCHOBJ expr=expression #searchObjExpression
+            | DISTANCE expr=expression #distanceExpression
+            | ISWORM expr=expression #isWormExpression
+            | ISFOOD expr=expression #isFoodExpression
+            | ISPROJECTILE expr=expression #isProjectileExpression
+;
+
+// ------------------------------------------------------------------------
+// --- Specifiers -----------------------------------------------
+// ------------------------------------------------------------------------
+
+NULL:       'null';
+SELF:       'self';
+TRUE:       'true';
+FALSE:      'false';
+
+// ------------------------------------------------------------------------
+// --- Unary Operations ---------------------------------------------------
+// ------------------------------------------------------------------------
+SQRT:      'sqrt';
+SIN:       'sin';
+COS:       'cos';
+NOT:       '!';
+GETX:      'getx';
+GETY:      'gety';
+GETRADIUS: 'getradius';
+GETDIR:    'getdir';
+GETAP:     'getap';
+GETMAXAP:  'getmaxap';
+GETHP:     'gethp';
+SAMETEAM:  'sameteam';
+SEARCHOBJ: 'searchobj';
+DISTANCE:  'distance';
+ISWORM:    'isworm';
+ISFOOD:    'isfood';
+ISPROJECTILE: 'isprojectile';
+
+// ------------------------------------------------------------------------
+// --- Actions -----------------------------------------------
+// ------------------------------------------------------------------------
+TURN:      'turn';
+MOVE:      'move';
+JUMP:      'jump';
+EAT:       'eat';
+FIRE:      'fire'; 
+
+
+// ------------------------------------------------------------------------
+// --- Control Flow -------------------------------------------------------
+// ------------------------------------------------------------------------
+DEF:       'def';
+IF:        'if';
+INVOKE:    'invoke';
+THEN:      'then';
+ELSE:      'else';
+WHILE:     'while';
+BREAK:     'break';
+PRINT:     'print';
+
+
+// ------------------------------------------------------------------------
+// --- Assignment and Arithmetics -----------------------------------------
+// ------------------------------------------------------------------------
+ASSIGN:   ':=';
+ADD:      '+';
+SUB:      '-';
+MUL:      '*';
+DIV:      '/';
+AND:      '&&';
+OR:       '||';
+LT:       '<';
+LTE:      '<=';
+GT:       '>';
+GTE:      '>=';
+EQ:       '==';
+NEQ:      '!=';
+
+// ------------------------------------------------------------------------
+// --- Literals and Variables ---------------------------------------------
+// ------------------------------------------------------------------------
+
+NUMBER:  INTEGER | FLOAT;
+FLOAT:   INTEGER '.' ('0'..'9')+;
+INTEGER: ('-'|'+')? ('0'..'9')+;
+
+IDENTIFIER: LETTER (LETTER | DIGIT | '_')*;
+fragment LETTER: LOWER | UPPER;
+fragment LOWER: 'a'..'z';
+fragment UPPER: 'A'..'Z';
+fragment DIGIT: '0'..'9';
+
+LEFT_PAREN: '(';
+RIGHT_PAREN: ')';
+LEFT_BRACE: '{';
+RIGHT_BRACE: '}';
+COLON: ':';
+
+// ------------------------------------------------------------------------
+// --- Syntactical Ballast ------------------------------------------------
+// ------------------------------------------------------------------------
+
+// Skip runs of newline, space and tab characters.
+WHITESPACE: [ \t\r\n]+ -> skip;
+ 
+// Single-line comments begin with //, are followed by any characters
+// other than those in a newline, and are terminated by newline characters.
+SINGLE_COMMENT: '//' ~('\r' | '\n')* NEWLINE -> skip;
+fragment NEWLINE: ('\r'? '\n')+;
+

OGP1718-Worms/src-provided/worms/programs/internal/parser/example/ExamplePrinter.java

@@ -0,0 +1,42 @@
+package worms.programs.internal.parser.example;
+
+import java.io.IOException;
+
+import worms.programs.IProgramFactory;
+import worms.programs.ParseOutcome;
+import worms.programs.ProgramParser;
+
+public class ExamplePrinter {
+	public static void main(String[] args) throws IOException {
+		IProgramFactory<PrintingObject, PrintingObject, PrintingObject, PrintingProgram> factory = PrintingObjectFactory.create();
+		ProgramParser<?, ?, ?, PrintingProgram> parser = ProgramParser.create(factory);
+
+		/*
+		ParseOutcome<PrintingProgram> outcome = parser.parseString(
+				"def controlled_move:"
+				+ "  if getap self > 100.0:"
+				+ "    { jump; print getx self; print gety self; }"
+				+ "  else move;"
+				+ ""
+				+ "max_distance := 10.0;"
+				+ "while true: {"
+				+ "  w := searchobj 0.0;"
+				+ "  if isworm w: {"
+				+ "    if sameteam w:"
+				+ "      invoke controlled_move;"
+				+ "    else if distance w < max_distance:"
+				+ "      fire;"
+				+ "    else"
+				+ "      { turn d; max_distance := max_distance + 0.1; }"
+				+ "  }"
+				+ "}");
+				*/
+		//ParseOutcome<PrintingProgram> outcome = parser.parseFile("programs/program_example.txt");
+		//ParseOutcome<PrintingProgram> outcome = parser.parseFile("programs/syntax_test.txt");
+		ParseOutcome<PrintingProgram> outcome = parser.parseFile("programs/program.txt");
+		
+		System.out.println(outcome);
+		
+	}
+
+}

OGP1718-Worms/src-provided/worms/programs/internal/parser/example/PrintingObject.java

@@ -0,0 +1,80 @@
+package worms.programs.internal.parser.example;
+
+import java.util.List;
+import java.util.StringTokenizer;
+import java.util.stream.Collectors;
+
+import worms.programs.SourceLocation;
+
+public class PrintingObject {
+
+	private boolean indented = false;
+
+	private final StringBuilder repr = new StringBuilder();
+
+	public PrintingObject(SourceLocation loc, String method, Object... args) {
+		if (loc != null) {
+			method = loc + " " + method;
+		}
+		if (args.length > 1) {
+			indented(method + "(");
+			indented = true;
+			for (int i = 0; i < args.length; i++) {
+				indented(repr(args[i]), args.length > 1 && i < args.length - 1);
+			}
+			indented = false;
+			indented(")");
+		} else {
+			String msg = method + "( ";
+			if (args.length > 0) {
+				msg += repr(args[0]).toString().trim();
+			}
+			msg += " )";
+			indented(msg);
+		}
+	}
+
+	private String repr(Object object) {
+		if (object instanceof String) {
+			object = "\"" + object + "\"";
+		} else if (object instanceof List<?>) {
+			object = String.format("Arrays.toList(%s)", ((List<?>) object)
+					.stream().map(this::repr)
+					.collect(Collectors.joining(", ### Arrays.toList\n")));
+		}
+		if (object != null) {
+			return object.toString();
+		} else {
+			return "null";
+		}
+	}
+
+	@Override
+	public String toString() {
+		return repr.toString();
+	}
+
+	private void indented(Object object) {
+		indented(object, false);
+	}
+
+	private void indented(Object object, boolean appendComma) {
+		if (object != null) {
+			String str = object.toString();
+			StringTokenizer tok = new StringTokenizer(str, "\n");
+			while (tok.hasMoreTokens()) {
+				if (indented)
+					repr.append("| ");
+				repr.append(tok.nextToken());
+				if (!tok.hasMoreTokens() && appendComma) {
+					repr.append(",");
+				}
+				repr.append("\n");
+			}
+		} else {
+			if (indented)
+				repr.append("  null");
+		}
+
+	}
+}

OGP1718-Worms/src-provided/worms/programs/internal/parser/example/PrintingObjectFactory.java

@@ -0,0 +1,49 @@
+package worms.programs.internal.parser.example;
+
+import java.lang.reflect.InvocationHandler;
+import java.lang.reflect.Method;
+import java.lang.reflect.Proxy;
+import java.util.Arrays;
+import java.util.List;
+
+import worms.programs.IProgramFactory;
+import worms.programs.SourceLocation;
+
+
+public class PrintingObjectFactory {
+
+	/**
+	 * Creates an implementation of IProgramFactory where the implementation of
+	 * each interface method (except createProgram) just creates a
+	 * PrintingObject with all arguments.
+	 */
+	@SuppressWarnings("unchecked")
+	public static IProgramFactory<PrintingObject, PrintingObject, PrintingObject, PrintingProgram> create() {
+
+		InvocationHandler handler = new InvocationHandler() {
+
+			@Override
+			public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
+				if (method.getName().equals("createProgram")) {
+					List<PrintingObject> functions = (List<PrintingObject>)args[0];
+					PrintingObject main = (PrintingObject) args[1];
+					return new PrintingProgram(functions, main);
+				}
+				if (args != null) {
+					SourceLocation sourceLocation = (SourceLocation) args[args.length - 1];
+					if (args.length >= 1) {
+						return new PrintingObject(sourceLocation, method.getName(),
+								Arrays.copyOfRange(args, 0, args.length - 1));
+					} else {
+						return new PrintingObject(sourceLocation, method.getName());
+					}
+				} else {
+					return new PrintingObject(null, method.getName());
+				}
+			}
+		};
+
+		return (IProgramFactory<PrintingObject, PrintingObject, PrintingObject, PrintingProgram>) Proxy.newProxyInstance(
+				IProgramFactory.class.getClassLoader(), new Class[] { IProgramFactory.class }, handler);
+	}
+}

OGP1718-Worms/src-provided/worms/programs/internal/parser/example/PrintingProgram.java

@@ -0,0 +1,22 @@
+package worms.programs.internal.parser.example;
+
+import java.util.List;
+
+public class PrintingProgram {
+
+	private List<PrintingObject> procedures;
+	private PrintingObject main;
+
+	public PrintingProgram(List<PrintingObject> procedures, PrintingObject main) {
+		if (main == null) {
+			throw new NullPointerException("main null");
+		}
+		this.main = main;
+		this.procedures = procedures;
+	}
+
+	@Override
+	public String toString() {
+		return "Procedures: " + procedures.toString() + "\nMain:" + main.toString();
+	}
+}

OGP1718-Worms/src-provided/worms/programs/internal/parser/generated/WormsProgram.tokens

@@ -0,0 +1,112 @@
+T__0=1
+NULL=2
+SELF=3
+TRUE=4
+FALSE=5
+SQRT=6
+SIN=7
+COS=8
+NOT=9
+GETX=10
+GETY=11
+GETRADIUS=12
+GETDIR=13
+GETAP=14
+GETMAXAP=15
+GETHP=16
+SAMETEAM=17
+SEARCHOBJ=18
+DISTANCE=19
+ISWORM=20
+ISFOOD=21
+ISPROJECTILE=22
+TURN=23
+MOVE=24
+JUMP=25
+EAT=26
+FIRE=27
+DEF=28
+IF=29
+INVOKE=30
+THEN=31
+ELSE=32
+WHILE=33
+BREAK=34
+PRINT=35
+ASSIGN=36
+ADD=37
+SUB=38
+MUL=39
+DIV=40
+AND=41
+OR=42
+LT=43
+LTE=44
+GT=45
+GTE=46
+EQ=47
+NEQ=48
+NUMBER=49
+FLOAT=50
+INTEGER=51
+IDENTIFIER=52
+LEFT_PAREN=53
+RIGHT_PAREN=54
+LEFT_BRACE=55
+RIGHT_BRACE=56
+COLON=57
+WHITESPACE=58
+SINGLE_COMMENT=59
+';'=1
+'null'=2
+'self'=3
+'true'=4
+'false'=5
+'sqrt'=6
+'sin'=7
+'cos'=8
+'!'=9
+'getx'=10
+'gety'=11
+'getradius'=12
+'getdir'=13
+'getap'=14
+'getmaxap'=15
+'gethp'=16
+'sameteam'=17
+'searchobj'=18
+'distance'=19
+'isworm'=20
+'isfood'=21
+'isprojectile'=22
+'turn'=23
+'move'=24
+'jump'=25
+'eat'=26
+'fire'=27
+'def'=28
+'if'=29
+'invoke'=30
+'then'=31
+'else'=32
+'while'=33
+'break'=34
+'print'=35
+':='=36
+'+'=37
+'-'=38
+'*'=39
+'/'=40
+'&&'=41
+'||'=42
+'<'=43
+'<='=44
+'>'=45
+'>='=46
+'=='=47
+'!='=48
+'('=53
+')'=54
+'{'=55
+'}'=56
+':'=57

OGP1718-Worms/src-provided/worms/programs/internal/parser/generated/WormsProgramBaseVisitor.java

@@ -0,0 +1,317 @@
+// Generated from WormsProgram.g4 by ANTLR 4.7.1
+
+    package worms.programs.internal.parser.generated;
+
+import org.antlr.v4.runtime.tree.AbstractParseTreeVisitor;
+
+/**
+ * This class provides an empty implementation of {@link WormsProgramVisitor},
+ * which can be extended to create a visitor which only needs to handle a subset
+ * of the available methods.
+ *
+ * @param <T> The return type of the visit operation. Use {@link Void} for
+ * operations with no return type.
+ */
+public class WormsProgramBaseVisitor<T> extends AbstractParseTreeVisitor<T> implements WormsProgramVisitor<T> {
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitProgram(WormsProgramParser.ProgramContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitProceduredef(WormsProgramParser.ProceduredefContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitStatement(WormsProgramParser.StatementContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitAssignmentStatement(WormsProgramParser.AssignmentStatementContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitWhileStatement(WormsProgramParser.WhileStatementContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitIfStatement(WormsProgramParser.IfStatementContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitPrintStatement(WormsProgramParser.PrintStatementContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitSequenceStatement(WormsProgramParser.SequenceStatementContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitInvokeStatement(WormsProgramParser.InvokeStatementContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitBreakStatement(WormsProgramParser.BreakStatementContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitTurnAction(WormsProgramParser.TurnActionContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitMoveAction(WormsProgramParser.MoveActionContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitJumpAction(WormsProgramParser.JumpActionContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitEatAction(WormsProgramParser.EatActionContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitFireAction(WormsProgramParser.FireActionContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitDistanceExpression(WormsProgramParser.DistanceExpressionContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitCosExpression(WormsProgramParser.CosExpressionContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitGetYExpression(WormsProgramParser.GetYExpressionContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitAndOrExpression(WormsProgramParser.AndOrExpressionContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitIsWormExpression(WormsProgramParser.IsWormExpressionContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitNotExpression(WormsProgramParser.NotExpressionContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitComparisonExpression(WormsProgramParser.ComparisonExpressionContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitParenExpression(WormsProgramParser.ParenExpressionContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitGetRadiusExpression(WormsProgramParser.GetRadiusExpressionContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitTrueLiteralExpression(WormsProgramParser.TrueLiteralExpressionContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitNullExpression(WormsProgramParser.NullExpressionContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitSqrtExpression(WormsProgramParser.SqrtExpressionContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitSinExpression(WormsProgramParser.SinExpressionContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitSameTeamExpression(WormsProgramParser.SameTeamExpressionContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitIsProjectileExpression(WormsProgramParser.IsProjectileExpressionContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitIsFoodExpression(WormsProgramParser.IsFoodExpressionContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitConstantExpression(WormsProgramParser.ConstantExpressionContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitSearchObjExpression(WormsProgramParser.SearchObjExpressionContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitGetXExpression(WormsProgramParser.GetXExpressionContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitReadVariableExpression(WormsProgramParser.ReadVariableExpressionContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitMulDivExpression(WormsProgramParser.MulDivExpressionContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitGetDirectionExpression(WormsProgramParser.GetDirectionExpressionContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitSelfExpression(WormsProgramParser.SelfExpressionContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitGetHPExpression(WormsProgramParser.GetHPExpressionContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitAddSubExpression(WormsProgramParser.AddSubExpressionContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitGetMaxAPExpression(WormsProgramParser.GetMaxAPExpressionContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitGetAPExpression(WormsProgramParser.GetAPExpressionContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitFalseLiteralExpression(WormsProgramParser.FalseLiteralExpressionContext ctx) { return visitChildren(ctx); }
+}

OGP1718-Worms/src-provided/worms/programs/internal/parser/generated/WormsProgramLexer.java

@@ -0,0 +1,280 @@
+// Generated from WormsProgram.g4 by ANTLR 4.7.1
+
+    package worms.programs.internal.parser.generated;
+
+import org.antlr.v4.runtime.Lexer;
+import org.antlr.v4.runtime.CharStream;
+import org.antlr.v4.runtime.Token;
+import org.antlr.v4.runtime.TokenStream;
+import org.antlr.v4.runtime.*;
+import org.antlr.v4.runtime.atn.*;
+import org.antlr.v4.runtime.dfa.DFA;
+import org.antlr.v4.runtime.misc.*;
+
+@SuppressWarnings({"all", "warnings", "unchecked", "unused", "cast"})
+public class WormsProgramLexer extends Lexer {
+	static { RuntimeMetaData.checkVersion("4.7.1", RuntimeMetaData.VERSION); }
+
+	protected static final DFA[] _decisionToDFA;
+	protected static final PredictionContextCache _sharedContextCache =
+		new PredictionContextCache();
+	public static final int
+		T__0=1, NULL=2, SELF=3, TRUE=4, FALSE=5, SQRT=6, SIN=7, COS=8, NOT=9, 
+		GETX=10, GETY=11, GETRADIUS=12, GETDIR=13, GETAP=14, GETMAXAP=15, GETHP=16, 
+		SAMETEAM=17, SEARCHOBJ=18, DISTANCE=19, ISWORM=20, ISFOOD=21, ISPROJECTILE=22, 
+		TURN=23, MOVE=24, JUMP=25, EAT=26, FIRE=27, DEF=28, IF=29, INVOKE=30, 
+		THEN=31, ELSE=32, WHILE=33, BREAK=34, PRINT=35, ASSIGN=36, ADD=37, SUB=38, 
+		MUL=39, DIV=40, AND=41, OR=42, LT=43, LTE=44, GT=45, GTE=46, EQ=47, NEQ=48, 
+		NUMBER=49, FLOAT=50, INTEGER=51, IDENTIFIER=52, LEFT_PAREN=53, RIGHT_PAREN=54, 
+		LEFT_BRACE=55, RIGHT_BRACE=56, COLON=57, WHITESPACE=58, SINGLE_COMMENT=59;
+	public static String[] channelNames = {
+		"DEFAULT_TOKEN_CHANNEL", "HIDDEN"
+	};
+
+	public static String[] modeNames = {
+		"DEFAULT_MODE"
+	};
+
+	public static final String[] ruleNames = {
+		"T__0", "NULL", "SELF", "TRUE", "FALSE", "SQRT", "SIN", "COS", "NOT", 
+		"GETX", "GETY", "GETRADIUS", "GETDIR", "GETAP", "GETMAXAP", "GETHP", "SAMETEAM", 
+		"SEARCHOBJ", "DISTANCE", "ISWORM", "ISFOOD", "ISPROJECTILE", "TURN", "MOVE", 
+		"JUMP", "EAT", "FIRE", "DEF", "IF", "INVOKE", "THEN", "ELSE", "WHILE", 
+		"BREAK", "PRINT", "ASSIGN", "ADD", "SUB", "MUL", "DIV", "AND", "OR", "LT", 
+		"LTE", "GT", "GTE", "EQ", "NEQ", "NUMBER", "FLOAT", "INTEGER", "IDENTIFIER", 
+		"LETTER", "LOWER", "UPPER", "DIGIT", "LEFT_PAREN", "RIGHT_PAREN", "LEFT_BRACE", 
+		"RIGHT_BRACE", "COLON", "WHITESPACE", "SINGLE_COMMENT", "NEWLINE"
+	};
+
+	private static final String[] _LITERAL_NAMES = {
+		null, "';'", "'null'", "'self'", "'true'", "'false'", "'sqrt'", "'sin'", 
+		"'cos'", "'!'", "'getx'", "'gety'", "'getradius'", "'getdir'", "'getap'", 
+		"'getmaxap'", "'gethp'", "'sameteam'", "'searchobj'", "'distance'", "'isworm'", 
+		"'isfood'", "'isprojectile'", "'turn'", "'move'", "'jump'", "'eat'", "'fire'", 
+		"'def'", "'if'", "'invoke'", "'then'", "'else'", "'while'", "'break'", 
+		"'print'", "':='", "'+'", "'-'", "'*'", "'/'", "'&&'", "'||'", "'<'", 
+		"'<='", "'>'", "'>='", "'=='", "'!='", null, null, null, null, "'('", 
+		"')'", "'{'", "'}'", "':'"
+	};
+	private static final String[] _SYMBOLIC_NAMES = {
+		null, null, "NULL", "SELF", "TRUE", "FALSE", "SQRT", "SIN", "COS", "NOT", 
+		"GETX", "GETY", "GETRADIUS", "GETDIR", "GETAP", "GETMAXAP", "GETHP", "SAMETEAM", 
+		"SEARCHOBJ", "DISTANCE", "ISWORM", "ISFOOD", "ISPROJECTILE", "TURN", "MOVE", 
+		"JUMP", "EAT", "FIRE", "DEF", "IF", "INVOKE", "THEN", "ELSE", "WHILE", 
+		"BREAK", "PRINT", "ASSIGN", "ADD", "SUB", "MUL", "DIV", "AND", "OR", "LT", 
+		"LTE", "GT", "GTE", "EQ", "NEQ", "NUMBER", "FLOAT", "INTEGER", "IDENTIFIER", 
+		"LEFT_PAREN", "RIGHT_PAREN", "LEFT_BRACE", "RIGHT_BRACE", "COLON", "WHITESPACE", 
+		"SINGLE_COMMENT"
+	};
+	public static final Vocabulary VOCABULARY = new VocabularyImpl(_LITERAL_NAMES, _SYMBOLIC_NAMES);
+
+	/**
+	 * @deprecated Use {@link #VOCABULARY} instead.
+	 */
+	@Deprecated
+	public static final String[] tokenNames;
+	static {
+		tokenNames = new String[_SYMBOLIC_NAMES.length];
+		for (int i = 0; i < tokenNames.length; i++) {
+			tokenNames[i] = VOCABULARY.getLiteralName(i);
+			if (tokenNames[i] == null) {
+				tokenNames[i] = VOCABULARY.getSymbolicName(i);
+			}
+
+			if (tokenNames[i] == null) {
+				tokenNames[i] = "<INVALID>";
+			}
+		}
+	}
+
+	@Override
+	@Deprecated
+	public String[] getTokenNames() {
+		return tokenNames;
+	}
+
+	@Override
+
+	public Vocabulary getVocabulary() {
+		return VOCABULARY;
+	}
+
+
+	public WormsProgramLexer(CharStream input) {
+		super(input);
+		_interp = new LexerATNSimulator(this,_ATN,_decisionToDFA,_sharedContextCache);
+	}
+
+	@Override
+	public String getGrammarFileName() { return "WormsProgram.g4"; }
+
+	@Override
+	public String[] getRuleNames() { return ruleNames; }
+
+	@Override
+	public String getSerializedATN() { return _serializedATN; }
+
+	@Override
+	public String[] getChannelNames() { return channelNames; }
+
+	@Override
+	public String[] getModeNames() { return modeNames; }
+
+	@Override
+	public ATN getATN() { return _ATN; }
+
+	public static final String _serializedATN =
+		"\3\u608b\ua72a\u8133\ub9ed\u417c\u3be7\u7786\u5964\2=\u01bf\b\1\4\2\t"+
+		"\2\4\3\t\3\4\4\t\4\4\5\t\5\4\6\t\6\4\7\t\7\4\b\t\b\4\t\t\t\4\n\t\n\4\13"+
+		"\t\13\4\f\t\f\4\r\t\r\4\16\t\16\4\17\t\17\4\20\t\20\4\21\t\21\4\22\t\22"+
+		"\4\23\t\23\4\24\t\24\4\25\t\25\4\26\t\26\4\27\t\27\4\30\t\30\4\31\t\31"+
+		"\4\32\t\32\4\33\t\33\4\34\t\34\4\35\t\35\4\36\t\36\4\37\t\37\4 \t \4!"+
+		"\t!\4\"\t\"\4#\t#\4$\t$\4%\t%\4&\t&\4\'\t\'\4(\t(\4)\t)\4*\t*\4+\t+\4"+
+		",\t,\4-\t-\4.\t.\4/\t/\4\60\t\60\4\61\t\61\4\62\t\62\4\63\t\63\4\64\t"+
+		"\64\4\65\t\65\4\66\t\66\4\67\t\67\48\t8\49\t9\4:\t:\4;\t;\4<\t<\4=\t="+
+		"\4>\t>\4?\t?\4@\t@\4A\tA\3\2\3\2\3\3\3\3\3\3\3\3\3\3\3\4\3\4\3\4\3\4\3"+
+		"\4\3\5\3\5\3\5\3\5\3\5\3\6\3\6\3\6\3\6\3\6\3\6\3\7\3\7\3\7\3\7\3\7\3\b"+
+		"\3\b\3\b\3\b\3\t\3\t\3\t\3\t\3\n\3\n\3\13\3\13\3\13\3\13\3\13\3\f\3\f"+
+		"\3\f\3\f\3\f\3\r\3\r\3\r\3\r\3\r\3\r\3\r\3\r\3\r\3\r\3\16\3\16\3\16\3"+
+		"\16\3\16\3\16\3\16\3\17\3\17\3\17\3\17\3\17\3\17\3\20\3\20\3\20\3\20\3"+
+		"\20\3\20\3\20\3\20\3\20\3\21\3\21\3\21\3\21\3\21\3\21\3\22\3\22\3\22\3"+
+		"\22\3\22\3\22\3\22\3\22\3\22\3\23\3\23\3\23\3\23\3\23\3\23\3\23\3\23\3"+
+		"\23\3\23\3\24\3\24\3\24\3\24\3\24\3\24\3\24\3\24\3\24\3\25\3\25\3\25\3"+
+		"\25\3\25\3\25\3\25\3\26\3\26\3\26\3\26\3\26\3\26\3\26\3\27\3\27\3\27\3"+
+		"\27\3\27\3\27\3\27\3\27\3\27\3\27\3\27\3\27\3\27\3\30\3\30\3\30\3\30\3"+
+		"\30\3\31\3\31\3\31\3\31\3\31\3\32\3\32\3\32\3\32\3\32\3\33\3\33\3\33\3"+
+		"\33\3\34\3\34\3\34\3\34\3\34\3\35\3\35\3\35\3\35\3\36\3\36\3\36\3\37\3"+
+		"\37\3\37\3\37\3\37\3\37\3\37\3 \3 \3 \3 \3 \3!\3!\3!\3!\3!\3\"\3\"\3\""+
+		"\3\"\3\"\3\"\3#\3#\3#\3#\3#\3#\3$\3$\3$\3$\3$\3$\3%\3%\3%\3&\3&\3\'\3"+
+		"\'\3(\3(\3)\3)\3*\3*\3*\3+\3+\3+\3,\3,\3-\3-\3-\3.\3.\3/\3/\3/\3\60\3"+
+		"\60\3\60\3\61\3\61\3\61\3\62\3\62\5\62\u0176\n\62\3\63\3\63\3\63\6\63"+
+		"\u017b\n\63\r\63\16\63\u017c\3\64\5\64\u0180\n\64\3\64\6\64\u0183\n\64"+
+		"\r\64\16\64\u0184\3\65\3\65\3\65\3\65\7\65\u018b\n\65\f\65\16\65\u018e"+
+		"\13\65\3\66\3\66\5\66\u0192\n\66\3\67\3\67\38\38\39\39\3:\3:\3;\3;\3<"+
+		"\3<\3=\3=\3>\3>\3?\6?\u01a5\n?\r?\16?\u01a6\3?\3?\3@\3@\3@\3@\7@\u01af"+
+		"\n@\f@\16@\u01b2\13@\3@\3@\3@\3@\3A\5A\u01b9\nA\3A\6A\u01bc\nA\rA\16A"+
+		"\u01bd\2\2B\3\3\5\4\7\5\t\6\13\7\r\b\17\t\21\n\23\13\25\f\27\r\31\16\33"+
+		"\17\35\20\37\21!\22#\23%\24\'\25)\26+\27-\30/\31\61\32\63\33\65\34\67"+
+		"\359\36;\37= ?!A\"C#E$G%I&K\'M(O)Q*S+U,W-Y.[/]\60_\61a\62c\63e\64g\65"+
+		"i\66k\2m\2o\2q\2s\67u8w9y:{;}<\177=\u0081\2\3\2\5\4\2--//\5\2\13\f\17"+
+		"\17\"\"\4\2\f\f\17\17\2\u01c5\2\3\3\2\2\2\2\5\3\2\2\2\2\7\3\2\2\2\2\t"+
+		"\3\2\2\2\2\13\3\2\2\2\2\r\3\2\2\2\2\17\3\2\2\2\2\21\3\2\2\2\2\23\3\2\2"+
+		"\2\2\25\3\2\2\2\2\27\3\2\2\2\2\31\3\2\2\2\2\33\3\2\2\2\2\35\3\2\2\2\2"+
+		"\37\3\2\2\2\2!\3\2\2\2\2#\3\2\2\2\2%\3\2\2\2\2\'\3\2\2\2\2)\3\2\2\2\2"+
+		"+\3\2\2\2\2-\3\2\2\2\2/\3\2\2\2\2\61\3\2\2\2\2\63\3\2\2\2\2\65\3\2\2\2"+
+		"\2\67\3\2\2\2\29\3\2\2\2\2;\3\2\2\2\2=\3\2\2\2\2?\3\2\2\2\2A\3\2\2\2\2"+
+		"C\3\2\2\2\2E\3\2\2\2\2G\3\2\2\2\2I\3\2\2\2\2K\3\2\2\2\2M\3\2\2\2\2O\3"+
+		"\2\2\2\2Q\3\2\2\2\2S\3\2\2\2\2U\3\2\2\2\2W\3\2\2\2\2Y\3\2\2\2\2[\3\2\2"+
+		"\2\2]\3\2\2\2\2_\3\2\2\2\2a\3\2\2\2\2c\3\2\2\2\2e\3\2\2\2\2g\3\2\2\2\2"+
+		"i\3\2\2\2\2s\3\2\2\2\2u\3\2\2\2\2w\3\2\2\2\2y\3\2\2\2\2{\3\2\2\2\2}\3"+
+		"\2\2\2\2\177\3\2\2\2\3\u0083\3\2\2\2\5\u0085\3\2\2\2\7\u008a\3\2\2\2\t"+
+		"\u008f\3\2\2\2\13\u0094\3\2\2\2\r\u009a\3\2\2\2\17\u009f\3\2\2\2\21\u00a3"+
+		"\3\2\2\2\23\u00a7\3\2\2\2\25\u00a9\3\2\2\2\27\u00ae\3\2\2\2\31\u00b3\3"+
+		"\2\2\2\33\u00bd\3\2\2\2\35\u00c4\3\2\2\2\37\u00ca\3\2\2\2!\u00d3\3\2\2"+
+		"\2#\u00d9\3\2\2\2%\u00e2\3\2\2\2\'\u00ec\3\2\2\2)\u00f5\3\2\2\2+\u00fc"+
+		"\3\2\2\2-\u0103\3\2\2\2/\u0110\3\2\2\2\61\u0115\3\2\2\2\63\u011a\3\2\2"+
+		"\2\65\u011f\3\2\2\2\67\u0123\3\2\2\29\u0128\3\2\2\2;\u012c\3\2\2\2=\u012f"+
+		"\3\2\2\2?\u0136\3\2\2\2A\u013b\3\2\2\2C\u0140\3\2\2\2E\u0146\3\2\2\2G"+
+		"\u014c\3\2\2\2I\u0152\3\2\2\2K\u0155\3\2\2\2M\u0157\3\2\2\2O\u0159\3\2"+
+		"\2\2Q\u015b\3\2\2\2S\u015d\3\2\2\2U\u0160\3\2\2\2W\u0163\3\2\2\2Y\u0165"+
+		"\3\2\2\2[\u0168\3\2\2\2]\u016a\3\2\2\2_\u016d\3\2\2\2a\u0170\3\2\2\2c"+
+		"\u0175\3\2\2\2e\u0177\3\2\2\2g\u017f\3\2\2\2i\u0186\3\2\2\2k\u0191\3\2"+
+		"\2\2m\u0193\3\2\2\2o\u0195\3\2\2\2q\u0197\3\2\2\2s\u0199\3\2\2\2u\u019b"+
+		"\3\2\2\2w\u019d\3\2\2\2y\u019f\3\2\2\2{\u01a1\3\2\2\2}\u01a4\3\2\2\2\177"+
+		"\u01aa\3\2\2\2\u0081\u01bb\3\2\2\2\u0083\u0084\7=\2\2\u0084\4\3\2\2\2"+
+		"\u0085\u0086\7p\2\2\u0086\u0087\7w\2\2\u0087\u0088\7n\2\2\u0088\u0089"+
+		"\7n\2\2\u0089\6\3\2\2\2\u008a\u008b\7u\2\2\u008b\u008c\7g\2\2\u008c\u008d"+
+		"\7n\2\2\u008d\u008e\7h\2\2\u008e\b\3\2\2\2\u008f\u0090\7v\2\2\u0090\u0091"+
+		"\7t\2\2\u0091\u0092\7w\2\2\u0092\u0093\7g\2\2\u0093\n\3\2\2\2\u0094\u0095"+
+		"\7h\2\2\u0095\u0096\7c\2\2\u0096\u0097\7n\2\2\u0097\u0098\7u\2\2\u0098"+
+		"\u0099\7g\2\2\u0099\f\3\2\2\2\u009a\u009b\7u\2\2\u009b\u009c\7s\2\2\u009c"+
+		"\u009d\7t\2\2\u009d\u009e\7v\2\2\u009e\16\3\2\2\2\u009f\u00a0\7u\2\2\u00a0"+
+		"\u00a1\7k\2\2\u00a1\u00a2\7p\2\2\u00a2\20\3\2\2\2\u00a3\u00a4\7e\2\2\u00a4"+
+		"\u00a5\7q\2\2\u00a5\u00a6\7u\2\2\u00a6\22\3\2\2\2\u00a7\u00a8\7#\2\2\u00a8"+
+		"\24\3\2\2\2\u00a9\u00aa\7i\2\2\u00aa\u00ab\7g\2\2\u00ab\u00ac\7v\2\2\u00ac"+
+		"\u00ad\7z\2\2\u00ad\26\3\2\2\2\u00ae\u00af\7i\2\2\u00af\u00b0\7g\2\2\u00b0"+
+		"\u00b1\7v\2\2\u00b1\u00b2\7{\2\2\u00b2\30\3\2\2\2\u00b3\u00b4\7i\2\2\u00b4"+
+		"\u00b5\7g\2\2\u00b5\u00b6\7v\2\2\u00b6\u00b7\7t\2\2\u00b7\u00b8\7c\2\2"+
+		"\u00b8\u00b9\7f\2\2\u00b9\u00ba\7k\2\2\u00ba\u00bb\7w\2\2\u00bb\u00bc"+
+		"\7u\2\2\u00bc\32\3\2\2\2\u00bd\u00be\7i\2\2\u00be\u00bf\7g\2\2\u00bf\u00c0"+
+		"\7v\2\2\u00c0\u00c1\7f\2\2\u00c1\u00c2\7k\2\2\u00c2\u00c3\7t\2\2\u00c3"+
+		"\34\3\2\2\2\u00c4\u00c5\7i\2\2\u00c5\u00c6\7g\2\2\u00c6\u00c7\7v\2\2\u00c7"+
+		"\u00c8\7c\2\2\u00c8\u00c9\7r\2\2\u00c9\36\3\2\2\2\u00ca\u00cb\7i\2\2\u00cb"+
+		"\u00cc\7g\2\2\u00cc\u00cd\7v\2\2\u00cd\u00ce\7o\2\2\u00ce\u00cf\7c\2\2"+
+		"\u00cf\u00d0\7z\2\2\u00d0\u00d1\7c\2\2\u00d1\u00d2\7r\2\2\u00d2 \3\2\2"+
+		"\2\u00d3\u00d4\7i\2\2\u00d4\u00d5\7g\2\2\u00d5\u00d6\7v\2\2\u00d6\u00d7"+
+		"\7j\2\2\u00d7\u00d8\7r\2\2\u00d8\"\3\2\2\2\u00d9\u00da\7u\2\2\u00da\u00db"+
+		"\7c\2\2\u00db\u00dc\7o\2\2\u00dc\u00dd\7g\2\2\u00dd\u00de\7v\2\2\u00de"+
+		"\u00df\7g\2\2\u00df\u00e0\7c\2\2\u00e0\u00e1\7o\2\2\u00e1$\3\2\2\2\u00e2"+
+		"\u00e3\7u\2\2\u00e3\u00e4\7g\2\2\u00e4\u00e5\7c\2\2\u00e5\u00e6\7t\2\2"+
+		"\u00e6\u00e7\7e\2\2\u00e7\u00e8\7j\2\2\u00e8\u00e9\7q\2\2\u00e9\u00ea"+
+		"\7d\2\2\u00ea\u00eb\7l\2\2\u00eb&\3\2\2\2\u00ec\u00ed\7f\2\2\u00ed\u00ee"+
+		"\7k\2\2\u00ee\u00ef\7u\2\2\u00ef\u00f0\7v\2\2\u00f0\u00f1\7c\2\2\u00f1"+
+		"\u00f2\7p\2\2\u00f2\u00f3\7e\2\2\u00f3\u00f4\7g\2\2\u00f4(\3\2\2\2\u00f5"+
+		"\u00f6\7k\2\2\u00f6\u00f7\7u\2\2\u00f7\u00f8\7y\2\2\u00f8\u00f9\7q\2\2"+
+		"\u00f9\u00fa\7t\2\2\u00fa\u00fb\7o\2\2\u00fb*\3\2\2\2\u00fc\u00fd\7k\2"+
+		"\2\u00fd\u00fe\7u\2\2\u00fe\u00ff\7h\2\2\u00ff\u0100\7q\2\2\u0100\u0101"+
+		"\7q\2\2\u0101\u0102\7f\2\2\u0102,\3\2\2\2\u0103\u0104\7k\2\2\u0104\u0105"+
+		"\7u\2\2\u0105\u0106\7r\2\2\u0106\u0107\7t\2\2\u0107\u0108\7q\2\2\u0108"+
+		"\u0109\7l\2\2\u0109\u010a\7g\2\2\u010a\u010b\7e\2\2\u010b\u010c\7v\2\2"+
+		"\u010c\u010d\7k\2\2\u010d\u010e\7n\2\2\u010e\u010f\7g\2\2\u010f.\3\2\2"+
+		"\2\u0110\u0111\7v\2\2\u0111\u0112\7w\2\2\u0112\u0113\7t\2\2\u0113\u0114"+
+		"\7p\2\2\u0114\60\3\2\2\2\u0115\u0116\7o\2\2\u0116\u0117\7q\2\2\u0117\u0118"+
+		"\7x\2\2\u0118\u0119\7g\2\2\u0119\62\3\2\2\2\u011a\u011b\7l\2\2\u011b\u011c"+
+		"\7w\2\2\u011c\u011d\7o\2\2\u011d\u011e\7r\2\2\u011e\64\3\2\2\2\u011f\u0120"+
+		"\7g\2\2\u0120\u0121\7c\2\2\u0121\u0122\7v\2\2\u0122\66\3\2\2\2\u0123\u0124"+
+		"\7h\2\2\u0124\u0125\7k\2\2\u0125\u0126\7t\2\2\u0126\u0127\7g\2\2\u0127"+
+		"8\3\2\2\2\u0128\u0129\7f\2\2\u0129\u012a\7g\2\2\u012a\u012b\7h\2\2\u012b"+
+		":\3\2\2\2\u012c\u012d\7k\2\2\u012d\u012e\7h\2\2\u012e<\3\2\2\2\u012f\u0130"+
+		"\7k\2\2\u0130\u0131\7p\2\2\u0131\u0132\7x\2\2\u0132\u0133\7q\2\2\u0133"+
+		"\u0134\7m\2\2\u0134\u0135\7g\2\2\u0135>\3\2\2\2\u0136\u0137\7v\2\2\u0137"+
+		"\u0138\7j\2\2\u0138\u0139\7g\2\2\u0139\u013a\7p\2\2\u013a@\3\2\2\2\u013b"+
+		"\u013c\7g\2\2\u013c\u013d\7n\2\2\u013d\u013e\7u\2\2\u013e\u013f\7g\2\2"+
+		"\u013fB\3\2\2\2\u0140\u0141\7y\2\2\u0141\u0142\7j\2\2\u0142\u0143\7k\2"+
+		"\2\u0143\u0144\7n\2\2\u0144\u0145\7g\2\2\u0145D\3\2\2\2\u0146\u0147\7"+
+		"d\2\2\u0147\u0148\7t\2\2\u0148\u0149\7g\2\2\u0149\u014a\7c\2\2\u014a\u014b"+
+		"\7m\2\2\u014bF\3\2\2\2\u014c\u014d\7r\2\2\u014d\u014e\7t\2\2\u014e\u014f"+
+		"\7k\2\2\u014f\u0150\7p\2\2\u0150\u0151\7v\2\2\u0151H\3\2\2\2\u0152\u0153"+
+		"\7<\2\2\u0153\u0154\7?\2\2\u0154J\3\2\2\2\u0155\u0156\7-\2\2\u0156L\3"+
+		"\2\2\2\u0157\u0158\7/\2\2\u0158N\3\2\2\2\u0159\u015a\7,\2\2\u015aP\3\2"+
+		"\2\2\u015b\u015c\7\61\2\2\u015cR\3\2\2\2\u015d\u015e\7(\2\2\u015e\u015f"+
+		"\7(\2\2\u015fT\3\2\2\2\u0160\u0161\7~\2\2\u0161\u0162\7~\2\2\u0162V\3"+
+		"\2\2\2\u0163\u0164\7>\2\2\u0164X\3\2\2\2\u0165\u0166\7>\2\2\u0166\u0167"+
+		"\7?\2\2\u0167Z\3\2\2\2\u0168\u0169\7@\2\2\u0169\\\3\2\2\2\u016a\u016b"+
+		"\7@\2\2\u016b\u016c\7?\2\2\u016c^\3\2\2\2\u016d\u016e\7?\2\2\u016e\u016f"+
+		"\7?\2\2\u016f`\3\2\2\2\u0170\u0171\7#\2\2\u0171\u0172\7?\2\2\u0172b\3"+
+		"\2\2\2\u0173\u0176\5g\64\2\u0174\u0176\5e\63\2\u0175\u0173\3\2\2\2\u0175"+
+		"\u0174\3\2\2\2\u0176d\3\2\2\2\u0177\u0178\5g\64\2\u0178\u017a\7\60\2\2"+
+		"\u0179\u017b\4\62;\2\u017a\u0179\3\2\2\2\u017b\u017c\3\2\2\2\u017c\u017a"+
+		"\3\2\2\2\u017c\u017d\3\2\2\2\u017df\3\2\2\2\u017e\u0180\t\2\2\2\u017f"+
+		"\u017e\3\2\2\2\u017f\u0180\3\2\2\2\u0180\u0182\3\2\2\2\u0181\u0183\4\62"+
+		";\2\u0182\u0181\3\2\2\2\u0183\u0184\3\2\2\2\u0184\u0182\3\2\2\2\u0184"+
+		"\u0185\3\2\2\2\u0185h\3\2\2\2\u0186\u018c\5k\66\2\u0187\u018b\5k\66\2"+
+		"\u0188\u018b\5q9\2\u0189\u018b\7a\2\2\u018a\u0187\3\2\2\2\u018a\u0188"+
+		"\3\2\2\2\u018a\u0189\3\2\2\2\u018b\u018e\3\2\2\2\u018c\u018a\3\2\2\2\u018c"+
+		"\u018d\3\2\2\2\u018dj\3\2\2\2\u018e\u018c\3\2\2\2\u018f\u0192\5m\67\2"+
+		"\u0190\u0192\5o8\2\u0191\u018f\3\2\2\2\u0191\u0190\3\2\2\2\u0192l\3\2"+
+		"\2\2\u0193\u0194\4c|\2\u0194n\3\2\2\2\u0195\u0196\4C\\\2\u0196p\3\2\2"+
+		"\2\u0197\u0198\4\62;\2\u0198r\3\2\2\2\u0199\u019a\7*\2\2\u019at\3\2\2"+
+		"\2\u019b\u019c\7+\2\2\u019cv\3\2\2\2\u019d\u019e\7}\2\2\u019ex\3\2\2\2"+
+		"\u019f\u01a0\7\177\2\2\u01a0z\3\2\2\2\u01a1\u01a2\7<\2\2\u01a2|\3\2\2"+
+		"\2\u01a3\u01a5\t\3\2\2\u01a4\u01a3\3\2\2\2\u01a5\u01a6\3\2\2\2\u01a6\u01a4"+
+		"\3\2\2\2\u01a6\u01a7\3\2\2\2\u01a7\u01a8\3\2\2\2\u01a8\u01a9\b?\2\2\u01a9"+
+		"~\3\2\2\2\u01aa\u01ab\7\61\2\2\u01ab\u01ac\7\61\2\2\u01ac\u01b0\3\2\2"+
+		"\2\u01ad\u01af\n\4\2\2\u01ae\u01ad\3\2\2\2\u01af\u01b2\3\2\2\2\u01b0\u01ae"+
+		"\3\2\2\2\u01b0\u01b1\3\2\2\2\u01b1\u01b3\3\2\2\2\u01b2\u01b0\3\2\2\2\u01b3"+
+		"\u01b4\5\u0081A\2\u01b4\u01b5\3\2\2\2\u01b5\u01b6\b@\2\2\u01b6\u0080\3"+
+		"\2\2\2\u01b7\u01b9\7\17\2\2\u01b8\u01b7\3\2\2\2\u01b8\u01b9\3\2\2\2\u01b9"+
+		"\u01ba\3\2\2\2\u01ba\u01bc\7\f\2\2\u01bb\u01b8\3\2\2\2\u01bc\u01bd\3\2"+
+		"\2\2\u01bd\u01bb\3\2\2\2\u01bd\u01be\3\2\2\2\u01be\u0082\3\2\2\2\16\2"+
+		"\u0175\u017c\u017f\u0184\u018a\u018c\u0191\u01a6\u01b0\u01b8\u01bd\3\b"+
+		"\2\2";
+	public static final ATN _ATN =
+		new ATNDeserializer().deserialize(_serializedATN.toCharArray());
+	static {
+		_decisionToDFA = new DFA[_ATN.getNumberOfDecisions()];
+		for (int i = 0; i < _ATN.getNumberOfDecisions(); i++) {
+			_decisionToDFA[i] = new DFA(_ATN.getDecisionState(i), i);
+		}
+	}
+}

OGP1718-Worms/src-provided/worms/programs/internal/parser/generated/WormsProgramLexer.tokens

@@ -0,0 +1,112 @@
+T__0=1
+NULL=2
+SELF=3
+TRUE=4
+FALSE=5
+SQRT=6
+SIN=7
+COS=8
+NOT=9
+GETX=10
+GETY=11
+GETRADIUS=12
+GETDIR=13
+GETAP=14
+GETMAXAP=15
+GETHP=16
+SAMETEAM=17
+SEARCHOBJ=18
+DISTANCE=19
+ISWORM=20
+ISFOOD=21
+ISPROJECTILE=22
+TURN=23
+MOVE=24
+JUMP=25
+EAT=26
+FIRE=27
+DEF=28
+IF=29
+INVOKE=30
+THEN=31
+ELSE=32
+WHILE=33
+BREAK=34
+PRINT=35
+ASSIGN=36
+ADD=37
+SUB=38
+MUL=39
+DIV=40
+AND=41
+OR=42
+LT=43
+LTE=44
+GT=45
+GTE=46
+EQ=47
+NEQ=48
+NUMBER=49
+FLOAT=50
+INTEGER=51
+IDENTIFIER=52
+LEFT_PAREN=53
+RIGHT_PAREN=54
+LEFT_BRACE=55
+RIGHT_BRACE=56
+COLON=57
+WHITESPACE=58
+SINGLE_COMMENT=59
+';'=1
+'null'=2
+'self'=3
+'true'=4
+'false'=5
+'sqrt'=6
+'sin'=7
+'cos'=8
+'!'=9
+'getx'=10
+'gety'=11
+'getradius'=12
+'getdir'=13
+'getap'=14
+'getmaxap'=15
+'gethp'=16
+'sameteam'=17
+'searchobj'=18
+'distance'=19
+'isworm'=20
+'isfood'=21
+'isprojectile'=22
+'turn'=23
+'move'=24
+'jump'=25
+'eat'=26
+'fire'=27
+'def'=28
+'if'=29
+'invoke'=30
+'then'=31
+'else'=32
+'while'=33
+'break'=34
+'print'=35
+':='=36
+'+'=37
+'-'=38
+'*'=39
+'/'=40
+'&&'=41
+'||'=42
+'<'=43
+'<='=44
+'>'=45
+'>='=46
+'=='=47
+'!='=48
+'('=53
+')'=54
+'{'=55
+'}'=56
+':'=57

OGP1718-Worms/src-provided/worms/programs/internal/parser/generated/WormsProgramVisitor.java

@@ -0,0 +1,306 @@
+// Generated from WormsProgram.g4 by ANTLR 4.7.1
+
+    package worms.programs.internal.parser.generated;
+
+import org.antlr.v4.runtime.tree.ParseTreeVisitor;
+
+/**
+ * This interface defines a complete generic visitor for a parse tree produced
+ * by {@link WormsProgramParser}.
+ *
+ * @param <T> The return type of the visit operation. Use {@link Void} for
+ * operations with no return type.
+ */
+public interface WormsProgramVisitor<T> extends ParseTreeVisitor<T> {
+	/**
+	 * Visit a parse tree produced by {@link WormsProgramParser#program}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitProgram(WormsProgramParser.ProgramContext ctx);
+	/**
+	 * Visit a parse tree produced by {@link WormsProgramParser#proceduredef}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitProceduredef(WormsProgramParser.ProceduredefContext ctx);
+	/**
+	 * Visit a parse tree produced by {@link WormsProgramParser#statement}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitStatement(WormsProgramParser.StatementContext ctx);
+	/**
+	 * Visit a parse tree produced by {@link WormsProgramParser#assignmentStatement}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitAssignmentStatement(WormsProgramParser.AssignmentStatementContext ctx);
+	/**
+	 * Visit a parse tree produced by {@link WormsProgramParser#whileStatement}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitWhileStatement(WormsProgramParser.WhileStatementContext ctx);
+	/**
+	 * Visit a parse tree produced by {@link WormsProgramParser#ifStatement}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitIfStatement(WormsProgramParser.IfStatementContext ctx);
+	/**
+	 * Visit a parse tree produced by {@link WormsProgramParser#printStatement}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitPrintStatement(WormsProgramParser.PrintStatementContext ctx);
+	/**
+	 * Visit a parse tree produced by {@link WormsProgramParser#sequenceStatement}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitSequenceStatement(WormsProgramParser.SequenceStatementContext ctx);
+	/**
+	 * Visit a parse tree produced by {@link WormsProgramParser#invokeStatement}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitInvokeStatement(WormsProgramParser.InvokeStatementContext ctx);
+	/**
+	 * Visit a parse tree produced by {@link WormsProgramParser#breakStatement}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitBreakStatement(WormsProgramParser.BreakStatementContext ctx);
+	/**
+	 * Visit a parse tree produced by the {@code turnAction}
+	 * labeled alternative in {@link WormsProgramParser#actionStatement}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitTurnAction(WormsProgramParser.TurnActionContext ctx);
+	/**
+	 * Visit a parse tree produced by the {@code moveAction}
+	 * labeled alternative in {@link WormsProgramParser#actionStatement}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitMoveAction(WormsProgramParser.MoveActionContext ctx);
+	/**
+	 * Visit a parse tree produced by the {@code jumpAction}
+	 * labeled alternative in {@link WormsProgramParser#actionStatement}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitJumpAction(WormsProgramParser.JumpActionContext ctx);
+	/**
+	 * Visit a parse tree produced by the {@code eatAction}
+	 * labeled alternative in {@link WormsProgramParser#actionStatement}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitEatAction(WormsProgramParser.EatActionContext ctx);
+	/**
+	 * Visit a parse tree produced by the {@code fireAction}
+	 * labeled alternative in {@link WormsProgramParser#actionStatement}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitFireAction(WormsProgramParser.FireActionContext ctx);
+	/**
+	 * Visit a parse tree produced by the {@code distanceExpression}
+	 * labeled alternative in {@link WormsProgramParser#expression}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitDistanceExpression(WormsProgramParser.DistanceExpressionContext ctx);
+	/**
+	 * Visit a parse tree produced by the {@code cosExpression}
+	 * labeled alternative in {@link WormsProgramParser#expression}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitCosExpression(WormsProgramParser.CosExpressionContext ctx);
+	/**
+	 * Visit a parse tree produced by the {@code getYExpression}
+	 * labeled alternative in {@link WormsProgramParser#expression}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitGetYExpression(WormsProgramParser.GetYExpressionContext ctx);
+	/**
+	 * Visit a parse tree produced by the {@code andOrExpression}
+	 * labeled alternative in {@link WormsProgramParser#expression}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitAndOrExpression(WormsProgramParser.AndOrExpressionContext ctx);
+	/**
+	 * Visit a parse tree produced by the {@code isWormExpression}
+	 * labeled alternative in {@link WormsProgramParser#expression}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitIsWormExpression(WormsProgramParser.IsWormExpressionContext ctx);
+	/**
+	 * Visit a parse tree produced by the {@code notExpression}
+	 * labeled alternative in {@link WormsProgramParser#expression}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitNotExpression(WormsProgramParser.NotExpressionContext ctx);
+	/**
+	 * Visit a parse tree produced by the {@code comparisonExpression}
+	 * labeled alternative in {@link WormsProgramParser#expression}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitComparisonExpression(WormsProgramParser.ComparisonExpressionContext ctx);
+	/**
+	 * Visit a parse tree produced by the {@code parenExpression}
+	 * labeled alternative in {@link WormsProgramParser#expression}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitParenExpression(WormsProgramParser.ParenExpressionContext ctx);
+	/**
+	 * Visit a parse tree produced by the {@code getRadiusExpression}
+	 * labeled alternative in {@link WormsProgramParser#expression}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitGetRadiusExpression(WormsProgramParser.GetRadiusExpressionContext ctx);
+	/**
+	 * Visit a parse tree produced by the {@code trueLiteralExpression}
+	 * labeled alternative in {@link WormsProgramParser#expression}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitTrueLiteralExpression(WormsProgramParser.TrueLiteralExpressionContext ctx);
+	/**
+	 * Visit a parse tree produced by the {@code nullExpression}
+	 * labeled alternative in {@link WormsProgramParser#expression}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitNullExpression(WormsProgramParser.NullExpressionContext ctx);
+	/**
+	 * Visit a parse tree produced by the {@code sqrtExpression}
+	 * labeled alternative in {@link WormsProgramParser#expression}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitSqrtExpression(WormsProgramParser.SqrtExpressionContext ctx);
+	/**
+	 * Visit a parse tree produced by the {@code sinExpression}
+	 * labeled alternative in {@link WormsProgramParser#expression}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitSinExpression(WormsProgramParser.SinExpressionContext ctx);
+	/**
+	 * Visit a parse tree produced by the {@code sameTeamExpression}
+	 * labeled alternative in {@link WormsProgramParser#expression}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitSameTeamExpression(WormsProgramParser.SameTeamExpressionContext ctx);
+	/**
+	 * Visit a parse tree produced by the {@code isProjectileExpression}
+	 * labeled alternative in {@link WormsProgramParser#expression}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitIsProjectileExpression(WormsProgramParser.IsProjectileExpressionContext ctx);
+	/**
+	 * Visit a parse tree produced by the {@code isFoodExpression}
+	 * labeled alternative in {@link WormsProgramParser#expression}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitIsFoodExpression(WormsProgramParser.IsFoodExpressionContext ctx);
+	/**
+	 * Visit a parse tree produced by the {@code constantExpression}
+	 * labeled alternative in {@link WormsProgramParser#expression}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitConstantExpression(WormsProgramParser.ConstantExpressionContext ctx);
+	/**
+	 * Visit a parse tree produced by the {@code searchObjExpression}
+	 * labeled alternative in {@link WormsProgramParser#expression}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitSearchObjExpression(WormsProgramParser.SearchObjExpressionContext ctx);
+	/**
+	 * Visit a parse tree produced by the {@code getXExpression}
+	 * labeled alternative in {@link WormsProgramParser#expression}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitGetXExpression(WormsProgramParser.GetXExpressionContext ctx);
+	/**
+	 * Visit a parse tree produced by the {@code readVariableExpression}
+	 * labeled alternative in {@link WormsProgramParser#expression}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitReadVariableExpression(WormsProgramParser.ReadVariableExpressionContext ctx);
+	/**
+	 * Visit a parse tree produced by the {@code mulDivExpression}
+	 * labeled alternative in {@link WormsProgramParser#expression}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitMulDivExpression(WormsProgramParser.MulDivExpressionContext ctx);
+	/**
+	 * Visit a parse tree produced by the {@code getDirectionExpression}
+	 * labeled alternative in {@link WormsProgramParser#expression}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitGetDirectionExpression(WormsProgramParser.GetDirectionExpressionContext ctx);
+	/**
+	 * Visit a parse tree produced by the {@code selfExpression}
+	 * labeled alternative in {@link WormsProgramParser#expression}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitSelfExpression(WormsProgramParser.SelfExpressionContext ctx);
+	/**
+	 * Visit a parse tree produced by the {@code getHPExpression}
+	 * labeled alternative in {@link WormsProgramParser#expression}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitGetHPExpression(WormsProgramParser.GetHPExpressionContext ctx);
+	/**
+	 * Visit a parse tree produced by the {@code addSubExpression}
+	 * labeled alternative in {@link WormsProgramParser#expression}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitAddSubExpression(WormsProgramParser.AddSubExpressionContext ctx);
+	/**
+	 * Visit a parse tree produced by the {@code getMaxAPExpression}
+	 * labeled alternative in {@link WormsProgramParser#expression}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitGetMaxAPExpression(WormsProgramParser.GetMaxAPExpressionContext ctx);
+	/**
+	 * Visit a parse tree produced by the {@code getAPExpression}
+	 * labeled alternative in {@link WormsProgramParser#expression}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitGetAPExpression(WormsProgramParser.GetAPExpressionContext ctx);
+	/**
+	 * Visit a parse tree produced by the {@code falseLiteralExpression}
+	 * labeled alternative in {@link WormsProgramParser#expression}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitFalseLiteralExpression(WormsProgramParser.FalseLiteralExpressionContext ctx);
+}