FlxFade.java :  » Game » pacmandroid » org » flixel » data » Android Open Source

package org.flixel.data;

  import org.flixel.*;
  
  //@desc    This is a special effects utility class to help FlxGame do the 'fade' effect
  public class FlxFade extends FlxSprite
  {
    protected float _delay;
    protected FlxFadeListener _complete;
    protected float _helper;
    
    //@desc    Constructor initializes the fade object
    public FlxFade()
    {
      super();
      createGraphic(FlxG.width,FlxG.height,0,true);
      scrollFactor.x = 0;
      scrollFactor.y = 0;
      visible = false;
    }
    
    //@desc    Reset and trigger this special effect
    //@param  Color      The color you want to use
    //@param  Duration    How long it should take to fade the screen out
    //@param  FadeComplete  A function you want to run when the fade finishes
    //@param  Force      Force the effect to reset
    public void restart(int Color, float Duration, FlxFadeListener FadeComplete, boolean Force)
    {
      if(Duration == 0)
      {
        visible = false;
        return;
      }
      if(!Force && visible) return;
      fill(Color);
      _delay = Duration;
      _complete = FadeComplete;
      _helper = 0;
      setAlpha(0);
      visible = true;
    }
    
    public void restart(int Color, float Duration) {restart(Color, Duration, null, false);}
    public void restart() {restart(0, 1, null, false);}
    
    //@desc    Updates and/or animates this special effect
    public void update()
    {
      if(visible && (getAlpha() != 1))
      {
        _helper += FlxG.elapsed/_delay;
        setAlpha(_helper);
        if(getAlpha() >= 1)
        {
          setAlpha(1);
          if(_complete != null)
            _complete.fadeComplete();
        }
      }
    }
  }