Add basic touch controls

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

@@ -1,11 +1,13 @@
 package com.me.pacman.state;
 
+import com.badlogic.gdx.Application;
 import com.badlogic.gdx.Gdx;
 import com.badlogic.gdx.Input;
 import com.badlogic.gdx.InputAdapter;
 import com.badlogic.gdx.graphics.Color;
 import com.badlogic.gdx.graphics.Texture;
 import com.badlogic.gdx.graphics.g2d.BitmapFont;
+import com.badlogic.gdx.math.Vector2;
 import com.me.pacman.PacDude;
 import com.me.pacman.Sound;
 
@@ -19,6 +21,10 @@ public class MenuState extends LevelState {
     public static final int NEW_GAME = 0;
     public static final int HIGH_SCORES = 1;
 
+    private BoundingBox NEW_GAME_BOX = new BoundingBox(88, 66, 136, 84);
+    private BoundingBox HIGH_SCORE_BOX = new BoundingBox(88, 42, 136, 60);
+
+
     private static final int MENU_PADDING = 24;
     private static final int MENU_X = 84;
     private static final int MENU_Y = 85;
@@ -42,8 +48,16 @@ public class MenuState extends LevelState {
         font = game.assets.getFont();
 
         Gdx.input.setInputProcessor(this.new Controller());
-
         game.sound.play(Sound.Effect.BEGINNING);
+
+        switch(Gdx.app.getType()) {
+            case Android:
+                selectedOption = -1;
+                break;
+            default:
+                selectedOption = 0;
+                break;
+        }
     }
 
     @Override
@@ -88,6 +102,30 @@ public class MenuState extends LevelState {
             return super.keyDown(keycode);
         }
 
+        @Override
+        public boolean touchDown(int screenX, int screenY, int pointer, int button) {
+            Vector2 coords = game.viewport.unproject(new Vector2(screenX, screenY));
+            if (NEW_GAME_BOX.contains(coords)) {
+                selectedOption = 0;
+            } else if (HIGH_SCORE_BOX.contains(coords)) {
+                selectedOption = 1;
+            }
+            return true;
+        }
+
+        @Override
+        public boolean touchUp(int screenX, int screenY, int pointer, int button) {
+            Vector2 coords = game.viewport.unproject(new Vector2(screenX, screenY));
+            if (selectedOption == 0 && NEW_GAME_BOX.contains(coords)) {
+                game.setScreen(new PlayState(game));
+            } else if (selectedOption == 1 && HIGH_SCORE_BOX.contains(coords)) {
+                selectedOption = -1;
+            } else {
+                selectedOption = -1;
+            }
+            return true;
+        }
+
     }
 
     @Override
@@ -95,4 +133,25 @@ public class MenuState extends LevelState {
         Gdx.input.setInputProcessor(null);
     }
 
+    public static class BoundingBox {
+        private int minX, minY;
+        private int maxX, maxY;
+
+        public BoundingBox(int minX, int minY, int maxX, int maxY) {
+            this.minX = minX;
+            this.minY = minY;
+            this.maxX = maxX;
+            this.maxY = maxY;
+        }
+
+        public boolean contains(int x, int y) {
+            return minX < x && x < maxX && minY < y && y < maxY;
+        }
+
+        public boolean contains(Vector2 coords) {
+            return contains((int) coords.x, (int) coords.y);
+        }
+
+    }
+
 }

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

@@ -499,6 +499,10 @@ public class PlayState extends LevelState {
 
     private final class Controller extends InputAdapter {
 
+        int downX;
+        int downY;
+        long downTime;
+
         @Override
         public boolean keyDown(int keycode) {
             switch (keycode) {
@@ -535,6 +539,47 @@ public class PlayState extends LevelState {
             return super.keyDown(keycode);
         }
 
+        @Override
+        public boolean touchDown(int screenX, int screenY, int pointer, int button) {
+            if (Math.abs(downX - screenX) < 50 && Math.abs(downY - screenY) < 50
+                    && System.currentTimeMillis() - downTime < 250) {
+                paused = !paused;
+                return true;
+            }
+            downX = screenX;
+            downY = screenY;
+            downTime = System.currentTimeMillis();
+            return true;
+        }
+
+        @Override
+        public boolean touchUp(int screenX, int screenY, int pointer, int button) {
+            int relaX = screenX - downX;
+            int relaY = screenY - downY;
+
+            if (Math.abs(relaX) < 50 && Math.abs(relaY) < 50) {
+                // didn't move enough to consider a swipe
+                return true;
+            }
+
+            if (Math.abs(relaX) > Math.abs(relaY)) {
+                // x > y, so moving left-right
+                if (relaX > 0) {
+                    pacman.setNextDirection(Direction.RIGHT);
+                } else {
+                    pacman.setNextDirection(Direction.LEFT);
+                }
+            } else {
+                // else, moving up/down
+                if (relaY > 0) {
+                    pacman.setNextDirection(Direction.DOWN);
+                } else {
+                    pacman.setNextDirection(Direction.UP);
+                }
+            }
+            return true;
+        }
+
     }
 
     @Override