OGEngine使用Modifier修改动画

动画修改器(modifier)有很多种,常用的有一下几种:
1.AlphaModifier:透明度修改器,有以下几种构造:

1. <font color="#000"><font face="Arial">public AlphaModifier(final float pDuration, final float pFromAlpha, final float pToAlpha) {
2. this(pDuration, pFromAlpha, pToAlpha, null, EaseLinear.getInstance());
3. }
4. public AlphaModifier(final float pDuration, final float pFromAlpha, final float pToAlpha, final IEaseFunction pEaseFunction) {
5. this(pDuration, pFromAlpha, pToAlpha, null, pEaseFunction);
6. }
7. public AlphaMod</font></font>ifier(final float pDu<font color="#000"><font face="Arial">ration, final float pFromAlpha, final float pToAlpha, final IEntityModifierListener pEntityModifierListener) {
8. super(pDuration, pFromAlpha, pToAlpha, pEntityModifierListener, EaseLinear.getInstance());
9. }
10. public AlphaModifier(final float pDuration, final float pFromAlpha, final float pToAlpha, final IEntityModifierListener pEntityModifierListener, final IEaseFunction pEaseFunction) {
11. super(pDuration, pFromAlpha, pToAlpha, pEntityModifierListener, pEaseFunction);
12. }
13. protected AlphaModifier(final AlphaModifier pAlphaModifier) {
14. super(pAlphaModifier);
15. }</font></font>

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pDuration代表动画修改周期,就是就是完成整个透明度变化所要的时间,单位为秒.
pFromAlpha代表起始透明度
pToAlpha代表目标透明度

2.ScaleModifier,比例修改器.主要是对动画的大小比例进行修改:

1. public ScaleModifier(final float pDuration, final float pFromScale, final float pToScale) {
2. this(pDuration, pFromScale, pToScale, null, EaseLinear.getInstance());
3. }
4. public ScaleModifier(final float pDuration, final float pFromScale, final float pToScale, final IEaseFunction pEaseFunction) {
5. this(pDuration, pFromScale, pToScale, null, pEaseFunction);
6. }
7. public ScaleModifier(final float pDuration, final float pFromScale, final float pToScale, final IEntityModifierListener pEntityModifierListener) {
8. this(pDuration, pFromScale, pToScale, pFromScale, pToScale, pEntityModifierListener, EaseLinear.getInstance());
9. }
10. public ScaleModifier(final float pDuration, final float pFromScale, final float pToScale, final IEntityModifierListener pEntityModifierListener, final IEaseFunction pEaseFunction) {
11. this(pDuration, pFromScale, pToScale, pFromScale, pToScale, pEntityModifierListener, pEaseFunction);
12. }
13. public ScaleModifier(final float pDuration, final float pFromScaleX, final float pToScaleX, final float pFromScaleY, final float pToScaleY) {
14. this(pDuration, pFromScaleX, pToScaleX, pFromScaleY, pToScaleY, null, EaseLinear.getInstance());
15. }
16. public ScaleModifier(final float pDuration, final float pFromScaleX, final float pToScaleX, final float pFromScaleY, final float pToScaleY, final IEaseFunction pEaseFunction) {
17. this(pDuration, pFromScaleX, pToScaleX, pFromScaleY, pToScaleY, null, pEaseFunction);
18. }
19. public ScaleModifier(final float pDuration, final float pFromScaleX, final float pToScaleX, final float pFromScaleY, final float pToScaleY, final IEntityModifierListener pEntityModifierListener) {
20. super(pDuration, pFromScaleX, pToScaleX, pFromScaleY, pToScaleY, pEntityModifierListener, EaseLinear.getInstance());
21. }
22. public ScaleModifier(final float pDuration, final float pFromScaleX, final float pToScaleX, final float pFromScaleY, final float pToScaleY, final IEntityModifierListener pEntityModifierListener, final IEaseFunction pEaseFunction) {
23. super(pDuration, pFromScaleX, pToScaleX, pFromScaleY, pToScaleY, pEntityModifierListener, pEaseFunction);
24. }
25. protected ScaleModifier(final ScaleModifier pScaleModifier) {
26. super(pScaleModifier);
27. }

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pDuration代表动画修改周期,就是就是完成整个变化所要的时间,单位为秒.
pFromScale代表起始透大小比例
pToScale代表目标大小比例

3.位置相关的Modifier：
    MoveModifier（final float pDuration ,final float pFromX,final float pToX,final float pFromY,final float pToY,final IEntityModifierListener pEntityModifierListener,final IEaseFunction pEaseFunction）
红色为可选参数，表示修改器的完成时的监听回调和缓动函数

pDuration为移动所持续的秒数。

除此之外，还有MoveXModifier（...）,及MoveYModifier（...），顾名思义，当实体只要在一个正交方向上移动时可以使用。

4.延迟相关的Modifier：
    DelayModifier（final float pDurationfinal IEntityModifierListener pEntityModifierListener）
    pDuration为延迟的时间， pEntityModifierListener会在延迟动作完成时回调。

5.旋转相关的Modifier：
    RotationModifier(float pDuration, float pFromRotation, float pToRotation)
    R otationAtModifie（...）

6.透明度相关的Modifier：
    AlphaModifier(float pDuration, float pFromAlpha, float pToAlpha)

7.颜色相关的Modifier：
    ColorModofier（....）

8.Modifier的组合
    有时候，仅仅一种效果是不够用的。此时，就需要构建一系列的Modifier组合来改变。

ParallelEntityModifier：当需要对某个Entity同时应用两个以上Modifier时使用
    ParallelEntityModifier(IEntityModifier... pEntityModifiers)

SequenceEntityModifier：当需要对某个Entity顺序地应用两个以上Modfier时使用
    SequenceEntityModifier(IEntityModifier... pEntityModifiers)

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OGEngine使用Modifier修改动画