Putting everything together

We just need to tie up a few loose ends so that we can run the game.

Updating GameEngine

Add an instance of the Level class to GameEngine:

...
HUD mHUD;
Renderer mRenderer;
ParticleSystem mParticleSystem;
PhysicsEngine mPhysicsEngine;
Level mLevel;

Initialize the instance of Level in the GameEngine constructor:

public GameEngine(Context context, Point size) {
     super(context);
     mUIController = new UIController(this, size);
     mGameState = new GameState(this, context);
     mSoundEngine = new SoundEngine(context);
     mHUD = new HUD(size);
     mRenderer = new Renderer(this);
     mPhysicsEngine = new PhysicsEngine();
     mParticleSystem = new ParticleSystem();
     mParticleSystem.init(1000);
   ...