Adds new enemies and coin display to demo game

examples/game/assets/game_ui.json

@@ -36,6 +36,15 @@
 	"sourceSize": {"w":472,"h":484},
 	"pivot": {"x":0.5,"y":0.5}
 },
+{
+	"filename": "coinboard.png",
+	"frame": {"x":366,"y":1056,"w":261,"h":100},
+	"rotated": true,
+	"trimmed": false,
+	"spriteSourceSize": {"x":0,"y":0,"w":261,"h":100},
+	"sourceSize": {"w":261,"h":100},
+	"pivot": {"x":0.5,"y":0.5}
+},
 {
 	"filename": "number_0.png",
 	"frame": {"x":416,"y":954,"w":38,"h":63},
@@ -47,7 +56,7 @@
 },
 {
 	"filename": "number_1.png",
-	"frame": {"x":324,"y":1221,"w":16,"h":57},
+	"frame": {"x":299,"y":1286,"w":16,"h":57},
 	"rotated": true,
 	"trimmed": true,
 	"spriteSourceSize": {"x":45,"y":25,"w":16,"h":57},
@@ -56,7 +65,7 @@
 },
 {
 	"filename": "number_2.png",
-	"frame": {"x":366,"y":1056,"w":38,"h":63},
+	"frame": {"x":324,"y":1156,"w":38,"h":63},
 	"rotated": false,
 	"trimmed": true,
 	"spriteSourceSize": {"x":23,"y":22,"w":38,"h":63},
@@ -65,8 +74,8 @@
 },
 {
 	"filename": "number_3.png",
-	"frame": {"x":364,"y":1156,"w":35,"h":63},
-	"rotated": false,
+	"frame": {"x":197,"y":1230,"w":35,"h":63},
+	"rotated": true,
 	"trimmed": true,
 	"spriteSourceSize": {"x":26,"y":22,"w":35,"h":63},
 	"sourceSize": {"w":84,"h":107},
@@ -74,8 +83,8 @@
 },
 {
 	"filename": "number_4.png",
-	"frame": {"x":416,"y":1019,"w":38,"h":57},
-	"rotated": false,
+	"frame": {"x":197,"y":1267,"w":38,"h":57},
+	"rotated": true,
 	"trimmed": true,
 	"spriteSourceSize": {"x":23,"y":25,"w":38,"h":57},
 	"sourceSize": {"w":84,"h":107},
@@ -83,7 +92,7 @@
 },
 {
 	"filename": "number_5.png",
-	"frame": {"x":324,"y":1156,"w":38,"h":63},
+	"frame": {"x":324,"y":1221,"w":38,"h":63},
 	"rotated": false,
 	"trimmed": true,
 	"spriteSourceSize": {"x":23,"y":22,"w":38,"h":63},
@@ -92,7 +101,7 @@
 },
 {
 	"filename": "number_6.png",
-	"frame": {"x":406,"y":1078,"w":38,"h":63},
+	"frame": {"x":2,"y":1230,"w":38,"h":63},
 	"rotated": true,
 	"trimmed": true,
 	"spriteSourceSize": {"x":23,"y":22,"w":38,"h":63},
@@ -101,8 +110,8 @@
 },
 {
 	"filename": "number_7.png",
-	"frame": {"x":401,"y":1198,"w":35,"h":60},
-	"rotated": true,
+	"frame": {"x":262,"y":1230,"w":35,"h":60},
+	"rotated": false,
 	"trimmed": true,
 	"spriteSourceSize": {"x":26,"y":22,"w":35,"h":60},
 	"sourceSize": {"w":84,"h":107},
@@ -110,7 +119,7 @@
 },
 {
 	"filename": "number_8.png",
-	"frame": {"x":406,"y":1118,"w":38,"h":63},
+	"frame": {"x":67,"y":1230,"w":38,"h":63},
 	"rotated": true,
 	"trimmed": true,
 	"spriteSourceSize": {"x":23,"y":22,"w":38,"h":63},
@@ -119,7 +128,7 @@
 },
 {
 	"filename": "number_9.png",
-	"frame": {"x":401,"y":1158,"w":38,"h":63},
+	"frame": {"x":132,"y":1230,"w":38,"h":63},
 	"rotated": true,
 	"trimmed": true,
 	"spriteSourceSize": {"x":23,"y":22,"w":38,"h":63},
@@ -140,8 +149,8 @@
 	"version": "1.0",
 	"image": "game_ui.png",
 	"format": "RGBA8888",
-	"size": {"w":472,"h":1239},
+	"size": {"w":472,"h":1319},
 	"scale": "1",
-	"smartupdate": "$TexturePacker:SmartUpdate:02d6676bdde949110cbdc9a2c385b33a:6b0974f94eba9593dd9636cc730412b8:10ac111e32c27e51f4e8444dbb39eff6$"
+	"smartupdate": "$TexturePacker:SmartUpdate:2fc7dfe766eba152274e2661737d6b51:b44b32d1e0a4146b3591d51b12f2d7ae:10ac111e32c27e51f4e8444dbb39eff6$"
 }
 }

examples/game/assets/sprites.json

@@ -11,7 +11,7 @@
 },
 {
 	"filename": "asteroid_big_0.png",
-	"frame": {"x":260,"y":193,"w":200,"h":167},
+	"frame": {"x":2,"y":450,"w":200,"h":167},
 	"rotated": false,
 	"trimmed": true,
 	"spriteSourceSize": {"x":0,"y":21,"w":200,"h":167},
@@ -20,7 +20,7 @@
 },
 {
 	"filename": "asteroid_big_1.nrm.png",
-	"frame": {"x":451,"y":2,"w":204,"h":166},
+	"frame": {"x":2,"y":619,"w":204,"h":166},
 	"rotated": false,
 	"trimmed": false,
 	"spriteSourceSize": {"x":0,"y":0,"w":204,"h":166},
@@ -29,7 +29,7 @@
 },
 {
 	"filename": "asteroid_big_1.png",
-	"frame": {"x":657,"y":2,"w":204,"h":166},
+	"frame": {"x":2,"y":787,"w":204,"h":166},
 	"rotated": false,
 	"trimmed": false,
 	"spriteSourceSize": {"x":0,"y":0,"w":204,"h":166},
@@ -38,7 +38,7 @@
 },
 {
 	"filename": "asteroid_big_2.nrm.png",
-	"frame": {"x":462,"y":170,"w":194,"h":165},
+	"frame": {"x":204,"y":335,"w":194,"h":165},
 	"rotated": false,
 	"trimmed": false,
 	"spriteSourceSize": {"x":0,"y":0,"w":194,"h":165},
@@ -47,7 +47,7 @@
 },
 {
 	"filename": "asteroid_big_2.png",
-	"frame": {"x":658,"y":170,"w":194,"h":165},
+	"frame": {"x":208,"y":502,"w":194,"h":165},
 	"rotated": false,
 	"trimmed": true,
 	"spriteSourceSize": {"x":0,"y":2,"w":194,"h":165},
@@ -56,7 +56,7 @@
 },
 {
 	"filename": "asteroid_small_0.nrm.png",
-	"frame": {"x":204,"y":362,"w":102,"h":84},
+	"frame": {"x":347,"y":843,"w":102,"h":84},
 	"rotated": false,
 	"trimmed": false,
 	"spriteSourceSize": {"x":0,"y":0,"w":102,"h":84},
@@ -65,7 +65,7 @@
 },
 {
 	"filename": "asteroid_small_0.png",
-	"frame": {"x":308,"y":362,"w":102,"h":84},
+	"frame": {"x":347,"y":929,"w":102,"h":84},
 	"rotated": false,
 	"trimmed": false,
 	"spriteSourceSize": {"x":0,"y":0,"w":102,"h":84},
@@ -74,7 +74,7 @@
 },
 {
 	"filename": "asteroid_small_1.nrm.png",
-	"frame": {"x":854,"y":213,"w":96,"h":102},
+	"frame": {"x":404,"y":463,"w":96,"h":102},
 	"rotated": false,
 	"trimmed": false,
 	"spriteSourceSize": {"x":0,"y":0,"w":96,"h":102},
@@ -83,7 +83,7 @@
 },
 {
 	"filename": "asteroid_small_1.png",
-	"frame": {"x":854,"y":317,"w":96,"h":102},
+	"frame": {"x":404,"y":567,"w":96,"h":102},
 	"rotated": false,
 	"trimmed": true,
 	"spriteSourceSize": {"x":0,"y":0,"w":96,"h":102},
@@ -92,7 +92,7 @@
 },
 {
 	"filename": "asteroid_small_2.nrm.png",
-	"frame": {"x":740,"y":337,"w":109,"h":84},
+	"frame": {"x":347,"y":671,"w":109,"h":84},
 	"rotated": false,
 	"trimmed": false,
 	"spriteSourceSize": {"x":0,"y":0,"w":109,"h":84},
@@ -101,16 +101,43 @@
 },
 {
 	"filename": "asteroid_small_2.png",
-	"frame": {"x":740,"y":423,"w":109,"h":84},
+	"frame": {"x":347,"y":757,"w":109,"h":84},
 	"rotated": false,
 	"trimmed": false,
 	"spriteSourceSize": {"x":0,"y":0,"w":109,"h":84},
 	"sourceSize": {"w":109,"h":84},
 	"pivot": {"x":0.5,"y":0.5}
 },
+{
+	"filename": "coin.png",
+	"frame": {"x":429,"y":270,"w":42,"h":47},
+	"rotated": false,
+	"trimmed": true,
+	"spriteSourceSize": {"x":6,"y":4,"w":42,"h":47},
+	"sourceSize": {"w":54,"h":56},
+	"pivot": {"x":0.5,"y":0.5}
+},
+{
+	"filename": "enemy_destroyer_1.png",
+	"frame": {"x":260,"y":193,"w":167,"h":140},
+	"rotated": false,
+	"trimmed": true,
+	"spriteSourceSize": {"x":10,"y":31,"w":167,"h":140},
+	"sourceSize": {"w":188,"h":188},
+	"pivot": {"x":0.5,"y":0.5}
+},
+{
+	"filename": "enemy_scout_0.png",
+	"frame": {"x":400,"y":335,"w":107,"h":126},
+	"rotated": false,
+	"trimmed": true,
+	"spriteSourceSize": {"x":11,"y":1,"w":107,"h":126},
+	"sourceSize": {"w":129,"h":129},
+	"pivot": {"x":0.5,"y":0.5}
+},
 {
 	"filename": "explosion_flare.png",
-	"frame": {"x":863,"y":2,"w":56,"h":209},
+	"frame": {"x":451,"y":2,"w":56,"h":209},
 	"rotated": false,
 	"trimmed": true,
 	"spriteSourceSize": {"x":4,"y":0,"w":56,"h":209},
@@ -119,7 +146,7 @@
 },
 {
 	"filename": "explosion_particle.png",
-	"frame": {"x":2,"y":450,"w":36,"h":60},
+	"frame": {"x":204,"y":260,"w":36,"h":60},
 	"rotated": false,
 	"trimmed": true,
 	"spriteSourceSize": {"x":14,"y":1,"w":36,"h":60},
@@ -137,7 +164,7 @@
 },
 {
 	"filename": "fire_particle.png",
-	"frame": {"x":40,"y":450,"w":55,"h":55},
+	"frame": {"x":429,"y":213,"w":55,"h":55},
 	"rotated": false,
 	"trimmed": true,
 	"spriteSourceSize": {"x":4,"y":4,"w":55,"h":55},
@@ -146,7 +173,7 @@
 },
 {
 	"filename": "laser.png",
-	"frame": {"x":204,"y":260,"w":37,"h":76},
+	"frame": {"x":458,"y":671,"w":37,"h":76},
 	"rotated": false,
 	"trimmed": false,
 	"spriteSourceSize": {"x":0,"y":0,"w":37,"h":76},
@@ -164,7 +191,7 @@
 },
 {
 	"filename": "ship.nrm.png",
-	"frame": {"x":462,"y":337,"w":137,"h":167},
+	"frame": {"x":208,"y":669,"w":137,"h":167},
 	"rotated": false,
 	"trimmed": false,
 	"spriteSourceSize": {"x":0,"y":0,"w":137,"h":167},
@@ -173,7 +200,7 @@
 },
 {
 	"filename": "ship.png",
-	"frame": {"x":601,"y":337,"w":137,"h":167},
+	"frame": {"x":208,"y":838,"w":137,"h":167},
 	"rotated": false,
 	"trimmed": true,
 	"spriteSourceSize": {"x":25,"y":10,"w":137,"h":167},
@@ -182,7 +209,7 @@
 },
 {
 	"filename": "star_0.png",
-	"frame": {"x":204,"y":448,"w":62,"h":62},
+	"frame": {"x":2,"y":955,"w":62,"h":62},
 	"rotated": false,
 	"trimmed": true,
 	"spriteSourceSize": {"x":1,"y":1,"w":62,"h":62},
@@ -191,7 +218,7 @@
 },
 {
 	"filename": "star_1.png",
-	"frame": {"x":268,"y":448,"w":62,"h":62},
+	"frame": {"x":66,"y":955,"w":62,"h":62},
 	"rotated": false,
 	"trimmed": true,
 	"spriteSourceSize": {"x":1,"y":1,"w":62,"h":62},
@@ -200,7 +227,7 @@
 },
 {
 	"filename": "star_2.png",
-	"frame": {"x":332,"y":448,"w":62,"h":62},
+	"frame": {"x":130,"y":955,"w":62,"h":62},
 	"rotated": false,
 	"trimmed": true,
 	"spriteSourceSize": {"x":1,"y":1,"w":62,"h":62},
@@ -212,8 +239,8 @@
 	"version": "1.0",
 	"image": "sprites.png",
 	"format": "RGBA8888",
-	"size": {"w":952,"h":512},
+	"size": {"w":509,"h":1019},
 	"scale": "1",
-	"smartupdate": "$TexturePacker:SmartUpdate:342fc72defddab59bb356b48894e2931:ecb4b4fa7772ea6a35788ebf670ca27c:1eabdf11f75e3a4fe3147baf7b5be24b$"
+	"smartupdate": "$TexturePacker:SmartUpdate:2164a72d7de59aa3603277aa505ff73b:f339feca6ccc1f78132ecc733c94dbc5:1eabdf11f75e3a4fe3147baf7b5be24b$"
 }
 }

examples/game/lib/custom_actions.dart

+part of game;
+
+class ActionCircularMove extends ActionInterval {
+  ActionCircularMove(this.setter, this.center, this.radius, this.startAngle, this.clockWise, double duration) : super (duration);
+
+  final Function setter;
+  final Point center;
+  final double radius;
+  final double startAngle;
+  final bool clockWise;
+
+  void update(double t) {
+    if (!clockWise) t = -t;
+    double rad = radians(startAngle + t * 360.0);
+    Offset offset = new Offset(math.cos(rad) * radius, math.sin(rad) * radius);
+    Point pos = center + offset;
+    setter(pos);
+  }
+}

examples/game/lib/explosions.dart

 part of game;
 
 class Explosion extends Node {
-  Explosion(SpriteSheet sheet) {
+  Explosion() {
+    zPosition = 10.0;
+  }
+}
+
+class ExplosionBig extends Explosion {
+  ExplosionBig(SpriteSheet sheet) {
     // Add particles
     ParticleSystem particlesDebris = new ParticleSystem(
       sheet["explosion_particle.png"],
@@ -69,3 +75,7 @@ class Explosion extends Node {
     }
   }
 }
+
+class ExplosionMini extends Explosion {
+
+}

examples/game/lib/game_demo.dart

@@ -7,7 +7,9 @@ import 'dart:sky' as sky;
 import 'package:sky/rendering/object.dart';
 import 'package:sky/widgets/framework.dart';
 import 'package:skysprites/skysprites.dart';
+import 'package:vector_math/vector_math.dart';
 
+part 'custom_actions.dart';
 part 'explosions.dart';
 part 'flash.dart';
 part 'game_demo_node.dart';

examples/game/lib/game_demo_node.dart

@@ -198,11 +198,11 @@ class GameDemoNode extends NodeWithSize {
     if (part == 0) {
       _objectFactory.addAsteroids(10 + level * 4, yPos, 0.0 + (level * 0.2).clamp(0.0, 0.7));
     } else if  (part == 1) {
-      _objectFactory.addSwarm(4 + level * 2, yPos);
+      _objectFactory.addEnemyScoutSwarm(4 + level * 2, yPos);
     } else if (part == 2) {
       _objectFactory.addAsteroids(10 + level * 4, yPos, 0.0 + (level * 0.2).clamp(0.0, 0.7));
     } else if (part == 3) {
-      _objectFactory.addAsteroids(10 + level * 4, yPos, 0.0 + (level * 0.2).clamp(0.0, 0.7));
+      _objectFactory.addEnemyDestroyerSwarm(2 + level, yPos);
     } else if (part == 4) {
       _objectFactory.addAsteroids(10 + level * 4, yPos, 0.0 + (level * 0.2).clamp(0.0, 0.7));
     }
@@ -227,7 +227,7 @@ class GameDemoNode extends NodeWithSize {
     _effectPlayer.play(_sounds["explosion"]);
 
     // Add explosion
-    Explosion explo = new Explosion(_spritesGame);
+    ExplosionBig explo = new ExplosionBig(_spritesGame);
     explo.scale = 1.5;
     explo.position = _level.ship.position;
     _level.addChild(explo);

examples/game/lib/game_object_factory.dart

@@ -3,7 +3,8 @@ part of game;
 enum GameObjectType {
   asteroidBig,
   asteroidSmall,
-  movingEnemy,
+  enemyScout,
+  enemyDestroyer,
   coin,
 }
 
@@ -24,11 +25,17 @@ class GameObjectFactory {
     }
   }
 
-  void addSwarm(int numEnemies, double yPos) {
+  void addEnemyScoutSwarm(int numEnemies, double yPos) {
     for (int i = 0; i < numEnemies; i++) {
       double spacing = math.max(_chunkSpacing / (numEnemies + 1.0), 80.0);
       double y = yPos + _chunkSpacing / 2.0 - (numEnemies - 1) * spacing / 2.0 + i * spacing;
-      addGameObject(GameObjectType.movingEnemy, new Point(0.0, y));
+      addGameObject(GameObjectType.enemyScout, new Point(0.0, y));
+    }
+  }
+
+  void addEnemyDestroyerSwarm(int numEnemies, double yPos) {
+    for (int i = 0; i < numEnemies; i++) {
+      addGameObject(GameObjectType.enemyDestroyer, new Point(randomSignedDouble() * 120.0 , yPos + _chunkSpacing * randomDouble()));
     }
   }
 
@@ -38,8 +45,10 @@ class GameObjectFactory {
       obj = new AsteroidBig(this);
     else if (type == GameObjectType.asteroidSmall)
       obj = new AsteroidSmall(this);
-    else if (type == GameObjectType.movingEnemy)
-      obj = new MovingEnemy(this);
+    else if (type == GameObjectType.enemyScout)
+      obj = new EnemyScout(this);
+    else if (type == GameObjectType.enemyDestroyer)
+      obj = new EnemyDestroyer(this);
     else if (type == GameObjectType.coin)
       obj = new Coin(this);
 

examples/game/lib/game_objects.dart

@@ -120,8 +120,9 @@ class Laser extends GameObject {
 
   Laser(GameObjectFactory f) : super(f) {
     // Add sprite
-    _sprt = new Sprite(f.sheet["laser.png"]);
-    _sprt.scale = 0.3;
+    _sprt = new Sprite(f.sheet["explosion_particle.png"]);
+    _sprt.scale = 0.5;
+    _sprt.colorOverlay = new Color(0xff95f4fb);
     _sprt.transferMode = sky.TransferMode.plus;
     addChild(_sprt);
     radius = 10.0;
@@ -138,6 +139,11 @@ class Laser extends GameObject {
   }
 }
 
+Color colorForDamage(double damage, double maxDamage) {
+  int alpha = ((200.0 * damage) ~/ maxDamage).clamp(0, 200);
+  return new Color.fromARGB(alpha, 255, 3, 86);
+}
+
 abstract class Obstacle extends GameObject {
 
   Obstacle(GameObjectFactory f) : super(f);
@@ -146,7 +152,7 @@ abstract class Obstacle extends GameObject {
 
   Explosion createExplosion() {
     SoundEffectPlayer.sharedInstance().play(f.sounds["explosion"]);
-    Explosion explo = new Explosion(f.sheet);
+    Explosion explo = new ExplosionBig(f.sheet);
     explo.scale = explosionScale;
     return explo;
   }
@@ -169,8 +175,7 @@ abstract class Asteroid extends Obstacle {
 
   set damage(double d) {
     super.damage = d;
-    int alpha = ((200.0 * d) ~/ maxDamage).clamp(0, 200);
-    _sprt.colorOverlay = new Color.fromARGB(alpha, 255, 3, 86);
+    _sprt.colorOverlay = colorForDamage(d, maxDamage);
   }
 
   PowerUp createPowerUp() {
@@ -198,10 +203,10 @@ class AsteroidSmall extends Asteroid {
   }
 }
 
-class MovingEnemy extends Obstacle {
-  MovingEnemy(GameObjectFactory f) : super(f) {
-    _sprt = new Sprite(f.sheet["ship.png"]);
-    _sprt.scale = 0.2;
+class EnemyScout extends Obstacle {
+  EnemyScout(GameObjectFactory f) : super(f) {
+    _sprt = new Sprite(f.sheet["enemy_scout_0.png"]);
+    _sprt.scale = 0.32;
     radius = 12.0;
     maxDamage = 1.0;
     addChild(_sprt);
@@ -251,9 +256,87 @@ class MovingEnemy extends Obstacle {
     actions.run(new ActionRepeatForever(spline));
   }
 
+  PowerUp createPowerUp() {
+    return new Coin(f);
+  }
+
+  Sprite _sprt;
+}
+
+class EnemyDestroyer extends Obstacle {
+  EnemyDestroyer(GameObjectFactory f) : super(f) {
+    _sprt = new Sprite(f.sheet["enemy_destroyer_1.png"]);
+    _sprt.scale = 0.32;
+    radius = 24.0;
+    maxDamage = 4.0;
+    addChild(_sprt);
+
+    constraints = [new ConstraintRotationToNode(f.level.ship, dampening: 0.05)];
+  }
+
+  int _countDown = randomInt(120) + 240;
+
+  void setupActions() {
+    ActionCircularMove circle = new ActionCircularMove(
+      (a) => position = a,
+      position, 40.0,
+      360.0 * randomDouble(),
+      randomBool(),
+      3.0);
+    actions.run(new ActionRepeatForever(circle));
+  }
+
+  PowerUp createPowerUp() {
+    return new Coin(f);
+  }
+
+  void update(double dt) {
+    _countDown -= 1;
+    if (_countDown <= 0) {
+      print("SHOOT!!");
+
+      // Shoot at player
+      EnemyLaser laser = new EnemyLaser(f, rotation, 5.0, new Color(0xffffe38e));
+      laser.position = position;
+      f.level.addChild(laser);
+
+      _countDown = 60 + randomInt(120);
+    }
+  }
+
+  set damage(double d) {
+    super.damage = d;
+    _sprt.colorOverlay = colorForDamage(d, maxDamage);
+  }
+
   Sprite _sprt;
 }
 
+class EnemyLaser extends Obstacle {
+  EnemyLaser(GameObjectFactory f, double rotation, double speed, Color color) : super(f) {
+    _sprt = new Sprite(f.sheet["explosion_particle.png"]);
+    _sprt.scale = 0.5;
+    _sprt.rotation = rotation + 90;
+    _sprt.colorOverlay = color;
+    addChild(_sprt);
+
+    canDamageShip = true;
+    canBeDamaged = false;
+
+    double rad = radians(rotation);
+    _movement = new Offset(math.cos(rad) * speed, math.sin(rad) * speed);
+
+    print("LASER!!");
+  }
+
+  Sprite _sprt;
+  Offset _movement;
+
+  void move() {
+    position += _movement;
+  }
+}
+
 class PowerUp extends GameObject {
   PowerUp(GameObjectFactory f) : super(f) {
     canDamageShip = false;
@@ -264,10 +347,8 @@ class PowerUp extends GameObject {
 
 class Coin extends PowerUp {
   Coin(GameObjectFactory f) : super(f) {
-    _sprt = new Sprite(f.sheet["shield.png"]);
-    _sprt.transferMode = sky.TransferMode.plus;
-    _sprt.size = new Size(15.0, 15.0);
-    _sprt.colorOverlay = new Color(0xffffff00);
+    _sprt = new Sprite(f.sheet["coin.png"]);
+    _sprt.scale = 0.7;
     addChild(_sprt);
 
     radius = 7.5;

examples/game/lib/player_state.dart

@@ -3,38 +3,41 @@ part of game;
 class PlayerState extends Node {
   PlayerState(this._sheetUI, this._sheetGame) {
     // Score display
-    Sprite sprtBgScore = new Sprite(_sheetUI["scoreboard.png"]);
-    sprtBgScore.pivot = new Point(1.0, 0.0);
-    sprtBgScore.scale = 0.35;
-    sprtBgScore.position = new Point(310.0, 10.0);
-    addChild(sprtBgScore);
+    _sprtBgScore = new Sprite(_sheetUI["scoreboard.png"]);
+    _sprtBgScore.pivot = new Point(1.0, 0.0);
+    _sprtBgScore.scale = 0.35;
+    _sprtBgScore.position = new Point(240.0, 10.0);
+    addChild(_sprtBgScore);
 
     _scoreDisplay = new ScoreDisplay(_sheetUI);
     _scoreDisplay.position = new Point(-13.0, 49.0);
-    sprtBgScore.addChild(_scoreDisplay);
+    _sprtBgScore.addChild(_scoreDisplay);
 
     // Coin display
-    Sprite sprtBgCoins = new Sprite(_sheetUI["scoreboard.png"]);
-    sprtBgCoins.pivot = new Point(1.0, 0.0);
-    sprtBgCoins.scale = 0.35;
-    sprtBgCoins.position = new Point(170.0, 10.0);
-    addChild(sprtBgCoins);
+    _sprtBgCoins = new Sprite(_sheetUI["coinboard.png"]);
+    _sprtBgCoins.pivot = new Point(1.0, 0.0);
+    _sprtBgCoins.scale = 0.35;
+    _sprtBgCoins.position = new Point(105.0, 10.0);
+    addChild(_sprtBgCoins);
 
     _coinDisplay = new ScoreDisplay(_sheetUI);
     _coinDisplay.position = new Point(-13.0, 49.0);
-    sprtBgCoins.addChild(_coinDisplay);
+    _sprtBgCoins.addChild(_coinDisplay);
   }
 
   final SpriteSheet _sheetUI;
   final SpriteSheet _sheetGame;
 
+  Sprite _sprtBgScore;
   ScoreDisplay _scoreDisplay;
+  Sprite _sprtBgCoins;
   ScoreDisplay _coinDisplay;
 
   int get score => _scoreDisplay.score;
 
   set score(int score) {
     _scoreDisplay.score = score;
+    flashBgSprite(_sprtBgScore);
   }
 
   int get coins => _coinDisplay.score;
@@ -42,26 +45,41 @@ class PlayerState extends Node {
   void addCoin(Coin c) {
     // Animate coin to the top of the screen
     Point startPos = convertPointFromNode(Point.origin, c);
-    Point finalPos = new Point(10.0, 10.0);
+    Point finalPos = new Point(30.0, 30.0);
     Point middlePos = new Point((startPos.x + finalPos.x) / 2.0 + 50.0,
       (startPos.y + finalPos.y) / 2.0);
 
     List<Point> path = [startPos, middlePos, finalPos];
 
-    Sprite sprt = new Sprite(_sheetGame["shield.png"]);
-    sprt.size = new Size(15.0, 15.0);
-    sprt.transferMode = sky.TransferMode.plus;
-    sprt.colorOverlay = new Color(0xffffff00);
+    Sprite sprt = new Sprite(_sheetGame["coin.png"]);
+    sprt.scale = 0.7;
+
     ActionSpline spline = new ActionSpline((a) => sprt.position = a, path, 0.5);
     spline.tension = 0.25;
+    ActionTween rotate = new ActionTween((a) => sprt.rotation = a, 0.0, 360.0, 0.5);
+    ActionTween scale = new ActionTween((a) => sprt.scale = a, 0.7, 1.2, 0.5);
+    ActionGroup group = new ActionGroup([spline, rotate, scale]);
     sprt.actions.run(new ActionSequence([
-      spline,
+      group,
       new ActionRemoveNode(sprt),
-      new ActionCallFunction(() { _coinDisplay.score += 1; })
+      new ActionCallFunction(() {
+        _coinDisplay.score += 1;
+        flashBgSprite(_sprtBgCoins);
+      })
     ]));
 
     addChild(sprt);
   }
+
+  void flashBgSprite(Sprite sprt) {
+    sprt.actions.stopAll();
+    ActionTween flash = new ActionTween(
+      (a) => sprt.colorOverlay = a,
+      new Color(0x66ccfff0),
+      new Color(0x00ccfff0),
+      0.3);
+    sprt.actions.run(flash);
+  }
 }
 
 class ScoreDisplay extends Node {