1 package aurelienribon.tweenengine; 2 3 /** 4 * TweenCallbacks are used to trigger actions at some specific times. They are 5 * used in both Tweens and Timelines. The moment when the callback is 6 * triggered depends on its registered triggers: 7 * <p/> 8 * 9 * <b>BEGIN</b>: right after the delay (if any)<br/> 10 * <b>START</b>: at each iteration beginning<br/> 11 * <b>END</b>: at each iteration ending, before the repeat delay<br/> 12 * <b>COMPLETE</b>: at last END event<br/> 13 * <b>BACK_BEGIN</b>: at the beginning of the first backward iteration<br/> 14 * <b>BACK_START</b>: at each backward iteration beginning, after the repeat delay<br/> 15 * <b>BACK_END</b>: at each backward iteration ending<br/> 16 * <b>BACK_COMPLETE</b>: at last BACK_END event 17 * <p/> 18 * 19 * <pre> {@code 20 * forward : BEGIN COMPLETE 21 * forward : START END START END START END 22 * |--------------[XXXXXXXXXX]------[XXXXXXXXXX]------[XXXXXXXXXX] 23 * backward: bEND bSTART bEND bSTART bEND bSTART 24 * backward: bCOMPLETE bBEGIN 25 * }</pre> 26 * 27 * @see Tween 28 * @see Timeline 29 * @author Aurelien Ribon | http://www.aurelienribon.com/ 30 */ 31 public interface TweenCallback { 32 public static final int BEGIN = 0x01; 33 public static final int START = 0x02; 34 public static final int END = 0x04; 35 public static final int COMPLETE = 0x08; 36 public static final int BACK_BEGIN = 0x10; 37 public static final int BACK_START = 0x20; 38 public static final int BACK_END = 0x40; 39 public static final int BACK_COMPLETE = 0x80; 40 public static final int ANY_FORWARD = 0x0F; 41 public static final int ANY_BACKWARD = 0xF0; 42 public static final int ANY = 0xFF; 43 onEvent(int type, BaseTween<?> source)44 public void onEvent(int type, BaseTween<?> source); 45 } 46