TweenAccessor,Tween，OriginalTween,BaseTween,Timeline

TweenAccessor设置初始值和目标值的接口
Tween：在初始值和目标值之间做动画补充
OriginalTween：动画的帧计算类
BaseTween：一个抽象类，有一个类似Activity的生命过程：开始-暂停-结束。
Timeline：一个实现BaseTween抽象类的类。这个类可以实现多个多个对象的连续动画。

 1 public class ActorListener implements ApplicationListener{
 2     private Stage mStage;
 3     private Texture texture;
 4     private ActorView mActorView;
 5     public ActorListener() {
 6 
 7     }
 8     @Override
 9     public void create() {
10       mStage =new Stage(240, 400, true);
11       //早View中画一张图片
12       mActorView =new ActorView("image");
13       texture =new Texture(Gdx.files.internal("flower.jpg"));
14       mActorView.region =new TextureRegion(texture,0,0,64,64);
15       mActorView.setSize(64, 64);
16       mStage.addActor(mActorView);
17      //将ActorView.class这个对象的处理类ActorAccessor的对象Push到Map中
18      Tween.registerAccessor(ActorView.class, new ActorAccessor());
19       //设置动画需要变换的值，有X，Y坐标，颜色等
20        Tween.to(mActorView, ActorAccessor.POS_XY, 1.0f)
21        //设置动画效果
22        .ease(Bounce.INOUT)
23        //设置坐标的目标值
24         .target(200, 300)
25         //把这个动画放到tweenManager中,真正启动动画是在render中
26         .start(ActorAccessor.tweenManager);
27     }
28     @Override
29     public void render() {
30         Gdx.gl.glClear(GL10.GL_COLOR_BUFFER_BIT); 
31         ActorAccessor.tweenManager.update(Gdx.graphics.getRawDeltaTime());
32         mStage.act(Gdx.graphics.getDeltaTime());
33         mStage.draw();
34         
35     }
36 }

 

Timeline 实现多个连续的动画。
//同一个对象在不同的时间段内实现一组连续的动画。
Timeline.createSequence();
下面这段代码实现分别在每秒中移动到某个坐标

 1 public class ActorListener implements ApplicationListener{
 2     private Stage mStage;
 3     private Texture texture;
 4     private ActorView mActorView;
 5     private Timeline mTimeline;
 6     public ActorListener() {
 7 
 8     }
 9     @Override
10     public void create() {
11       mStage =new Stage(240, 400, true);
12       mActorView =new ActorView("image");
13       texture =new Texture(Gdx.files.internal("flower.jpg"));
14       mActorView.region =new TextureRegion(texture,0,0,64,64);
15       mActorView.setSize(64, 64);
16       mStage.addActor(mActorView);
17       Tween.registerAccessor(ActorView.class, new ActorAccessor());
18       //创建一个Timeline对象，这个对象是一个动画的集合
19       mTimeline = Timeline.createSequence();
20     
21       mTimeline.push(Tween.to(mActorView, ActorAccessor.POS_XY, 1.0f).target(200, 300, 0).ease(Bounce.INOUT));
22       mTimeline.push(Tween.to(mActorView, ActorAccessor.POS_XY, 1.0f).target(100, 200, 0).ease(Bounce.INOUT));
23       mTimeline.push(Tween.to(mActorView, ActorAccessor.POS_XY, 1.0f).target(20, 30, 0).ease(Bounce.OUT)) .start(ActorAccessor.tweenManager);
24 
25     }
26     @Override
27     public void render() {
28         Gdx.gl.glClear(GL10.GL_COLOR_BUFFER_BIT); 
29         //开始更新动画
30         ActorAccessor.tweenManager.update(Gdx.graphics.getRawDeltaTime());
31         mStage.act(Gdx.graphics.getDeltaTime());
32         mStage.draw();
33         
34     }
35 }

//在相同的时间段内实现各种动画，比如一边移动一边旋转一边放大缩小
Timeline.createParallel();
下面这段代码实现在同一秒内，在移动的过程中不断的缩小图片

BaseTween抽象类的类。这个类可以实现多个多个对象的连续动画。

 1 public class ActorListener implements ApplicationListener{
 2     private Stage mStage;
 3     private Texture texture;
 4     private ActorView mActorView;
 5     private Timeline mTimeline;
 6     public ActorListener() {
 7 
 8     }
 9     @Override
10     public void create() {
11       mStage =new Stage(240, 400, true);
12       mActorView =new ActorView("image");
13       texture =new Texture(Gdx.files.internal("flower.jpg"));
14       mActorView.region =new TextureRegion(texture,0,0,64,64);
15       mActorView.setSize(64, 64);
16       mStage.addActor(mActorView);
17       Tween.registerAccessor(ActorView.class, new ActorAccessor());
18       //创建一个Timeline对象，这个对象是一个动画的集合
19       mTimeline = Timeline.createSequence();
20     
21       mTimeline.push(Tween.to(mActorView, ActorAccessor.SCALE_XY, 1.0f).target((float)0.5,(float) 0.5, 0).ease(Cubic.OUT).delay((float)0.3));
22       mTimeline.push(Tween.to(mActorView, ActorAccessor.POS_XY, 1.0f).target(200, 300, 0).ease(Cubic.OUT)) .start(ActorAccessor.tweenManager);
23 
24     }
25     @Override
26     public void render() {
27         Gdx.gl.glClear(GL10.GL_COLOR_BUFFER_BIT); 
28         //开始更新动画
29         ActorAccessor.tweenManager.update(Gdx.graphics.getRawDeltaTime());
30         mStage.act(Gdx.graphics.getDeltaTime());
31         mStage.draw();
32         
33     }
34 }

 

 

posted @ 2013-04-08 16:52  mogul  阅读(343)  评论(0)  编辑  收藏  举报