【开源java游戏框架libgdx专题】-09-动画的使用

 1 package com.mygdx.animation;
 2 
 3 import com.badlogic.gdx.ApplicationListener;
 4 import com.badlogic.gdx.Gdx;
 5 import com.badlogic.gdx.graphics.GL20;
 6 import com.badlogic.gdx.graphics.Texture;
 7 import com.badlogic.gdx.graphics.g2d.Animation;
 8 import com.badlogic.gdx.graphics.g2d.Animation.PlayMode;
 9 import com.badlogic.gdx.graphics.g2d.SpriteBatch;
10 import com.badlogic.gdx.graphics.g2d.TextureRegion;
11 /**
12  * 测试使用动画
13  * @author Jack(乐智)
14  * @blog dtblog.cn
15  * @qq 984137183
16  */
17 public class UseAnimation implements ApplicationListener {
18     //列
19     private static final int FRAME_COLS=6;
20     //行
21     private static final int     FRAME_ROWS=5;
22     
23     //动画类
24     Animation walkAnimation;
25     //纹理
26     Texture walkSheet;
27     TextureRegion[] walkFrames;
28     SpriteBatch batch;
29     TextureRegion currentFrame;
30     
31     float stateTime;
32     
33     @Override
34     public void create() {
35         //纹理
36         walkSheet = new Texture(Gdx.files.internal("animation_sheet.png"));
37         //将纹理分割成2维数组的坐标
38         TextureRegion[][] tmp=TextureRegion.split(walkSheet, walkSheet.getWidth()/FRAME_COLS, walkSheet.getHeight()/FRAME_ROWS);
39         walkFrames=new TextureRegion[FRAME_COLS*FRAME_ROWS];//存储所有的图片的数组
40         int index=0;
41         for (int i = 0; i < FRAME_ROWS; i++) {
42             for (int j = 0; j < FRAME_COLS; j++) {
43                 walkFrames[index++]=tmp[i][j];//将图片放到数组中
44             }
45         }
46         walkAnimation=new Animation(0.025f,walkFrames);//使用动画类播放数组中的图片
47         walkAnimation.setPlayMode(PlayMode.LOOP_PINGPONG);//设置播放模式，
48         batch=new SpriteBatch();
49         stateTime=0f;
50     }
51 
52     @Override
53     public void resize(int width, int height) {
54         
55     }
56 
57     @Override
58     public void render() {
59         Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);
60         stateTime+=Gdx.graphics.getDeltaTime();//渲染时间
61         currentFrame=walkAnimation.getKeyFrame(stateTime,true);
62         batch.begin();
63         batch.draw(currentFrame,Gdx.graphics.getWidth()/2,Gdx.graphics.getHeight()/2);
64         batch.end();
65     }
66 
67     @Override
68     public void pause() {
69         // TODO Auto-generated method stub
70 
71     }
72 
73     @Override
74     public void resume() {
75 
76     }
77 
78     @Override
79     public void dispose() {
80         // TODO Auto-generated method stub
81 
82     }
83 
84 }