There's a ghost! And death. And a game over sequence.

core/src/com/me/pacman/entity/Direction.java

@@ -2,7 +2,7 @@ package com.me.pacman.entity;
 
 public enum Direction {
     NORTH,
-    EAST,
     SOUTH,
-    WEST
+    WEST,
+    EAST,
 }

core/src/com/me/pacman/entity/Entity.java

@@ -22,6 +22,10 @@ public abstract class Entity {
         batch.draw(getSprite(), (int) (x * 8) + (offsetX - 8), (y * 8) + (offsetY - 8));
     }
 
+    public boolean onSameTile(Entity other) {
+        return (int) x == (int) other.x && (int) y == (int) other.y;
+    }
+
     public abstract TextureRegion getSprite();
 
     public void update(float dt) {

core/src/com/me/pacman/entity/Ghost.java

@@ -0,0 +1,72 @@
+package com.me.pacman.entity;
+
+import com.badlogic.gdx.graphics.g2d.SpriteBatch;
+import com.badlogic.gdx.graphics.g2d.TextureRegion;
+import com.me.pacman.entity.ai.Behaviour;
+import com.me.pacman.entity.ai.Target;
+import com.me.pacman.state.PlayState;
+
+public class Ghost extends MovableEntity {
+
+    private PlayState state;
+
+    public Behaviour currentBehaviour;
+
+    public Behaviour chaseBehaviour;
+    public Behaviour freightBehaviour;
+    public Behaviour scatterBehaviour;
+
+    public TextureRegion[][] sprite;
+
+    private int spriteIndex;
+    private int counter = 0;
+
+    public Ghost(PlayState state, float x, float y, Direction direction, int spriteIndex,
+                 Behaviour chaseBehaviour, Behaviour freightBehaviour, Behaviour scatterBehaviour) {
+        super(state, x, y, 7.33f, true, direction, 0.1f);
+        this.state = state;
+        this.spriteIndex = spriteIndex;
+        this.chaseBehaviour = chaseBehaviour;
+        this.freightBehaviour = freightBehaviour;
+        this.scatterBehaviour = scatterBehaviour;
+        sprite = state.getGame().assets.ghosts;
+    }
+
+    @Override
+    public TextureRegion getSprite() {
+        return sprite[2 + (counter % 2)][spriteIndex];
+    }
+
+    @Override
+    public void render(SpriteBatch batch, int offsetX, int offsetY) {
+        super.render(batch, offsetX, offsetY);
+
+        // draw eyes so the ghost can see
+        batch.draw(sprite[1][currDirection.ordinal()], (int) (x * 8) + (offsetX - 8), (y * 8) + (offsetY - 8));
+    }
+
+    @Override
+    public void update(float dt) {
+        super.update(dt);
+
+        if (!state.paused && age % 20 == 0) {
+            counter++;
+        }
+    }
+
+    private class ReturnToBase extends Behaviour {
+
+        final Target home = new Target(14, 16);
+
+        public ReturnToBase(PlayState state) {
+            super(state);
+        }
+
+        @Override
+        public Target getTarget() {
+            return home;
+        }
+
+    }
+
+}

core/src/com/me/pacman/entity/Pacman.java

@@ -7,40 +7,34 @@ import com.me.pacman.state.PlayState;
 public class Pacman extends MovableEntity {
 
     private TextureRegion[][] sprite;
+    private TextureRegion[][] death;
 
     private PlayState state;
     private int counter = 1;
 
     private int freezeFrames = 0;
 
+    public boolean alive = true;
+    public int deathFrame = 0;
+
     public Pacman(PlayState state, boolean moving) {
         super(state, 14, 7.5f, 7.5f, moving, Direction.EAST, 0.3f);
         this.state = state;
         sprite = state.getGame().assets.pacman;
+        death = state.getGame().assets.deathAnimation;
     }
 
     @Override
     public TextureRegion getSprite() {
+        if (!alive) {
+            return death[deathFrame / 4][deathFrame % 4];
+        }
+
         if (!moving) {
             return sprite[2][0];
         }
 
-        int spriteDir;
+        return sprite[currDirection.ordinal()][canMove ? counter % 3 : 1];
-        switch(currDirection) {
-            case NORTH:
-                spriteDir = 0;
-                break;
-            case SOUTH:
-                spriteDir = 1;
-                break;
-            case WEST:
-                spriteDir = 2;
-                break;
-            default:
-                spriteDir = 3;
-                break;
-        }
-        return sprite[spriteDir][canMove ? counter % 3 : 1];
     }
 
     @Override
@@ -56,6 +50,10 @@ public class Pacman extends MovableEntity {
             counter += 1;
         }
 
+        if (age % 8 == 0 && !alive) {
+            deathFrame++;
+        }
+
         LevelTile tile = state.level.getTile(x, y);
         if (tile == null) {
             return;

core/src/com/me/pacman/entity/ai/Behaviour.java

@@ -0,0 +1,15 @@
+package com.me.pacman.entity.ai;
+
+import com.me.pacman.state.PlayState;
+
+public abstract class Behaviour {
+
+    public PlayState state;
+
+    public Behaviour(PlayState state) {
+        this.state = state;
+    }
+
+    public abstract Target getTarget();
+
+}

core/src/com/me/pacman/entity/ai/Target.java

@@ -0,0 +1,22 @@
+package com.me.pacman.entity.ai;
+
+public class Target {
+
+    public int x;
+    public int y;
+
+    public Target(int x, int y) {
+        this.x = x;
+        this.y = y;
+    }
+
+    public Target(float x, float y) {
+        this.x = (int) x;
+        this.y = (int) y;
+    }
+
+    public boolean targetReached(float x, float y) {
+        return this.x == (int) x && this.y == (int) y;
+    }
+
+}

core/src/com/me/pacman/state/PlayState.java

@@ -3,12 +3,14 @@ package com.me.pacman.state;
 import com.badlogic.gdx.Gdx;
 import com.badlogic.gdx.Input;
 import com.badlogic.gdx.InputAdapter;
+import com.badlogic.gdx.audio.Sound;
 import com.badlogic.gdx.graphics.Color;
 import com.badlogic.gdx.graphics.Texture;
 import com.badlogic.gdx.graphics.g2d.BitmapFont;
 import com.badlogic.gdx.graphics.g2d.TextureRegion;
 import com.me.pacman.PacDude;
 import com.me.pacman.entity.Direction;
+import com.me.pacman.entity.Ghost;
 import com.me.pacman.entity.Pacman;
 import com.me.pacman.level.Level;
 import com.me.pacman.level.LevelTile;
@@ -27,11 +29,17 @@ public class PlayState extends LevelState {
 
     private long sirenId;
 
-    private float waitTimer;
+    private float readyTimer;
+    private float gameOverTimer;
+    private float newGameTimer;
+    private float deathTimer;
+
+    private boolean pacmanCaught;
 
     private TextureRegion lifeSprite;
 
-    private Pacman pacman;
+    public Pacman pacman;
+    public Ghost[] ghosts;
 
     public PlayState(PacDude game) {
         super(game);
@@ -44,12 +52,6 @@ public class PlayState extends LevelState {
         lifeSprite = game.assets.pacman[2][1];
         Gdx.input.setInputProcessor(new Controller());
 
-        pelletCount = 0;
-        pelletEatenCount = 0;
-        score = 0;
-        lives = 3;
-        round = 0;
-
         newGame();
     }
 
@@ -66,9 +68,23 @@ public class PlayState extends LevelState {
 
         pacman.render(game.batch, 0, 16);
 
-        if (waitTimer > 0) {
+        if (pacman.alive) {
+            for (Ghost ghost : ghosts) {
+                if (ghost == null) {
+                    continue;
+                }
+                ghost.render(game.batch, 0, 16);
+            }
+        }
+
+        if (readyTimer > 0) {
             game.assets.getFont().setColor(Color.YELLOW);
-            game.assets.getFont().draw(game.batch, "ready!", 90, 127);
+            game.assets.getFont().draw(game.batch, "ready!", 92, 127);
+        }
+
+        if (gameOverTimer > 0) {
+            game.assets.getFont().setColor(Color.RED);
+            game.assets.getFont().draw(game.batch, "game  over", 78, 127);
         }
 
         if (paused) {
@@ -84,45 +100,115 @@ public class PlayState extends LevelState {
             return;
         }
 
-        if (waitTimer > 0) {
+        if (gameOverTimer > 0) {
-            waitTimer -= dt;
+            gameOverTimer -= dt;
-            if (waitTimer <= 0) {
+            if (gameOverTimer <= 0) {
-                startGame();
+                newGame();
             } else {
                 return;
             }
         }
 
+        if (readyTimer > 0) {
+            readyTimer -= dt;
+            if (readyTimer <= 0) {
+                startGame();
+            } else if (newGameTimer <= 0) {
+                return;
+            }
+        }
+
+        if (newGameTimer > 0) {
+            newGameTimer -= dt;
+            if (newGameTimer <= 0) {
+                setupGame();
+            } else {
+                return;
+            }
+        }
+
+        if (!pacmanCaught) {
+            for (Ghost ghost : ghosts) {
+                if (ghost == null) {
+                    continue;
+                }
+                ghost.update(dt);
+
+                if (ghost.onSameTile(pacman)) {
+                    pacmanCaught();
+                    return;
+                }
+            }
+        } else if (deathTimer <= 0) {
+            if (pacman.alive) {
+                game.assets.deathSound.play(1f);
+            }
+
+            pacman.alive = false;
+
+            if (pacman.deathFrame == 13) {
+                if (lives > 0) {
+                    setupGame();
+                    readyTimer = 3f;
+                } else {
+                    gameOverTimer = 2f;
+                }
+            }
+        } else {
+            deathTimer -= dt;
+        }
+
         pacman.update(dt);
     }
 
     public void newGame() {
+        pelletCount = 0;
+        pelletEatenCount = 0;
+        score = 0;
+        lives = 3;
+        round = 0;
+
+        pacmanCaught = false;
+        deathTimer = 0f;
+
+        newGameTimer = 2.3f;
+
+        ghosts = new Ghost[4];
+        pacman = new Pacman(this, false);
+
+        newRound();
+    }
+
+    public void newRound() {
         round++;
+        level = new Level(game,"level");
+        pacman = new Pacman(this, false);
+
         game.assets.siren.stop(sirenId);
 
-        level = new Level(game,"level");
         pelletCount = level.getTileCount(LevelTile.PELLET);
         pelletCount += level.getTileCount(LevelTile.POWER_PELLET);
 
         if (round == 1) {
-            waitTimer = 4.3f;
+            readyTimer = 4.2f;
-            game.assets.beginning.play(1.0f);
-        } else {
-            waitTimer = 4.2f;
             game.assets.beginning_alt.play(1.0f);
+        } else {
+            readyTimer = 4.3f;
+            game.assets.beginning.play(1.0f);
         }
+    }
+
+    public void setupGame() {
+        lives--;
+        pacmanCaught = false;
 
         pacman = new Pacman(this, false);
+        ghosts[0] = new Ghost(this, 14, 19.5f, Direction.WEST, 0, null, null, null);
     }
 
     public void startGame() {
         pacman.moving = true;
-        game.assets.beginning.stop();
-        game.assets.beginning_alt.stop();
         sirenId = game.assets.siren.loop(1.0f);
-        if (round == 1) {
-            lives--;
-        }
     }
 
     private void pelletEaten(float x, float y) {
@@ -136,7 +222,7 @@ public class PlayState extends LevelState {
         pelletCount--;
 
         if (pelletCount == 0) {
-            newGame();
+            newRound();
         }
     }
 
@@ -151,6 +237,14 @@ public class PlayState extends LevelState {
         score += 50;
     }
 
+    private void pacmanCaught() {
+        game.assets.siren.stop(sirenId);
+        deathTimer = 1f;
+        pacmanCaught = true;
+        pacman.moving = false;
+    }
+
+
     @Override
     public void dispose() {
         Gdx.input.setInputProcessor(null);