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精灵动画libgdx数组

libgdx java

witsel · 技术社区 · 2 年前

我正在尝试为一个大学项目创建一个游戏。在主菜单中,我用以下内容设置了角色动画:

spidey = new Texture("spidey.png");
TextureRegion[][] tmpFrames = 
TextureRegion.split(spidey,spidey.getWidth()/3,spidey.getHeight()/5);
animationFrames = new TextureRegion[15];
int index = 0;
for (int i=0; i<5; i++){
    for (int j=0; j<3; j++){
        animationFrames[index++] = tmpFrames[i][j];
    }
}
animation = new Animation(0.15f, (Object[]) animationFrames);

但如果我有这样一组字符:

public void characters() {
enemies = new Array<Enemy>();
enemies.add(new Enemy(new Sprite(new Texture("img1.png")), spawn));
enemies.add(new Enemy(new Sprite(new Texture("img2.png")), spawn));
enemies.add(new Enemy(new Sprite(new Texture("img3.png")), spawn));
enemies.add(new Enemy(new Sprite(new Texture("img4.png")), spawn));      
}

如何设置所有角色的动画?

1 回复 | 直到 2 年前

Tobias 2 年前

要为您的敌人使用动画,您不需要创建敌人阵列,但需要 Animation 对象,就像您在问题的第一个代码段中所做的那样。

类似这样:

public void character() {
  TextureRegion[] enemyAnimationTextures = new TextureRegion[] {new Texture("img1.png"), new Texture("img2.png"), new Texture("img3.png"), new Texture("img4.png")};
  Animation<TextureRegion> animation = new Animation<>(0.15f, enemyAnimationTextures, PlayMode.LOOP); // use PlayMode.NORMAL if you don't want the animation to loop
  enemy = new Enemy(animation);
}

现在,您需要能够绘制动画。因此,您需要添加一个将增量时间作为参数获取的绘制方法(或者从 Gdx.graphics.getDeltaTime() ,如中所示 this tutorial (这有点过时,但仍然可以使用……):

// in you Enemy class
private float animationStateTime = 0f;
private Animation<TextureRegion> animation;
private SpriteBatch spriteBatch = new SpriteBatch();

public Enemy(Animation<TextureRegion> animation) {
  this.animation = animation;
}

public void draw() {
  animationStateTime += Gdx.graphics.getDeltaTime(); // a bit outdated, but working
  
  // get the current frame of the animation for this enemy
  TextureRegion currentFrame = animation.getKeyFrame(animationStateTime);

  // draw the texture region (TODO this must probably be changed to not only draw the enemy at (50, 50))
  spriteBatch.begin();
  spriteBatch.draw(currentFrame, 50, 50); // Draw current frame at (50, 50)
  spriteBatch.end();
}