Android Open Source - LucyTheMoocher Master Loop

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License

The source code is released under:

MIT License

Java Source Code

package com.lucythemoocher.loops;
/*from w ww .j  av a  2  s . c o m*/
import com.lucythemoocher.Globals.Globals;
import com.lucythemoocher.graphics.Camera;

/**
 * This class handles the main loop. It uses a state pattern
 * with the class Loop. For example, LoopGame inherits Loop and
 * handles the loop during the game. Update is used each frame, 
 * whatever the state of the game (menus, credits, game etc.)
 * MasterLoop is a singleton
 *
 */
public class MasterLoop {
  
  /**
   * Get the instance of the singleton
   * @return Instance
   */
  synchronized public final static MasterLoop getInstance() {
    if (MasterLoop.instance_ == null) {
      MasterLoop.instance_ = new MasterLoop();
    }
        return MasterLoop.instance_;
  }
  
  /**
   * Change the loop (state pattern)
   * @param loop The new state
   */
  public void setLoop(Loop loop) {
    loop_ = loop;
  }
  
  /**
   * Called each frame
   */
  public void update() {
    Globals.getInstance().update();
    loop_.update();
  }
  
  /**
   * Update rendering
   */
  public void render() {
    Camera cam = Globals.getInstance().getCamera();
    if (loop_.doRender() && cam.canDraw() && cam.lockScreen()) {
      cam.prepare();
      loop_.render();
      cam.unlockScreen();
    }
  }
  
  public void mainMenu() {
    setLoop(new InitMenuLoop());
  }
  
  public void gameOver() {
    loop_.unregisterKeys();
    setLoop(new GameOverLoop(3000));
  }
  
  public void credits() {
    loop_.unregisterKeys();
    setLoop(new CreditsLoop());
  }
  
  public void restartLevel() {
    loop_.unregisterKeys();
    setLoop(new LivesMenuLoop(1000, new LoopGame(Globals.getInstance().getLevel())));
  }
  
  /**
   * Private constructor for singleton pattern
   */
  private MasterLoop() {
    loop_ = new InitMenuLoop();
  }
  
  private static volatile MasterLoop instance_ = null;
  private Loop loop_;
}

Java Source Code List

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