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我想改變一個精靈的y位置,翻譯的作品,我的問題是它忽略了我的目標,每次都去一個特定的點,我不明白爲什麼吐溫引擎 - Tween.to忽略目標值
雪碧存取器代碼:
public class SpriteAccessor implements TweenAccessor<Sprite>{
public static final int ALPHA = 1;
public static final int POSITION_X = 2;
public static final int POSITION_Y = 3;
@Override
public int getValues(Sprite target, int tweenType, float[] returnValues) {
switch (tweenType) {
case ALPHA:
returnValues[0] = target.getColor().a;
return 1;
case POSITION_X:
returnValues[1] = target.getX();
return 2;
case POSITION_Y:
returnValues[2] = target.getY();
return 3;
default:
return 0;
}
}
@Override
public void setValues(Sprite target, int tweenType, float[] newValues) {
switch (tweenType) {
case ALPHA:
target.setColor(1, 1, 1, newValues[0]);
break;
case POSITION_X:
target.setX(newValues[1]);
break;
case POSITION_Y:
target.setY(newValues[2]);
break;
}
}
}
和作用在哪裏使譯文:
private void setupTween() {
Tween.registerAccessor(Sprite.class, new SpriteAccessor());
manager = new TweenManager();
TweenCallback cb = new TweenCallback() {
@Override
public void onEvent(int type, BaseTween<?> source) {
}
};
Tween.to(menuLogoSprite, SpriteAccessor.POSITION_Y, 2f)
.target()//any value i put here is ignored
.ease(TweenEquations.easeInOutQuint)
.setCallback(cb).setCallbackTriggers(TweenCallback.COMPLETE)
.start(manager);
}
謝謝!這解決了我的問題 –