MEnDiGa: A Minimal Engine for Digital Games

Algorithm 2

Partial description of the SuperJumperGame class.

public class SuperJumperGame extends GameSession  

public static enum  GameState  RUNNING, PAUSED, READY, WIN

private GameState  gameState;

private AudioNode  audioNodes;

public SuperJumperGame()  

// Configuring AudioNodes

this.audioNodes = new AudioNode  

new AudioNode("coinSound", "res/superjumper/coin.wav"), // ⋯

new AudioNode("gameMusic", "res/superjumper/music.mp3")  ;

// Configuring Observers

      this.addObserver(new CheckForNewHighScore(this));

      this.addObserver(new CheckGameOver(this));

// Configuring Behaviors

      this.addBehavior("changeToMenu", new ChangeToMainMenuScreen(this));

      this.addBehavior("generateLevel", new GenerateLevel(this));

this.addBehavior("createHud", new CreateHud(this));

this.addBehavior("resetBob", new ResetBob());

this.addBehavior(GameState.RUNNING.toString(), new UpdateRunning(this));

this.addBehavior("endGame", new EndGame(this));

this.addBehavior("playClickSound", new PlayClickSound(this));

public void initialize()

this.getBehavior("changeToMenu").execute(); // load the game menu

this.getAudioNode(MUSIC).setState(State.PLAYING);

public void update(float deltaTime)

// Perform the current Running Behavior if the game still running

if (this.gameState.equals(GameState.RUNNING))

this.getBehavior(this.gameState.toString()).execute(deltaTime);

//  ⋯