Question

在我的libGdx项目中，我使用createSprite（）从纹理图集创建了一个精灵。我想将sprite实现为旋转。我怎么能这样做？这是我的代码：

 reelSprite = atlas.createSprite("reel");

在render（）中：

for (Wall lWalls : leftWalls){
        reelSprite.setOrigin(lWalls.getX(), lWalls.getY());
        reelSprite.setRotation(180);

    batch.draw(reelSprite, lWalls.getX(), lWalls.getY());
    }

此代码无效。请告诉我我做错了什么。

Answer 1

在绘制精灵之前应该使用setRotation：

https://libgdx.badlogicgames.com/nightlies/docs/api/com/badlogic/gdx/graphics/g2d/Sprite.html#setRotation-float-

甚至在设定旋转点之前：

https://libgdx.badlogicgames.com/nightlies/docs/api/com/badlogic/gdx/graphics/g2d/Sprite.html#setOrigin-float-float-

Answer 2

(odoo-env) Marcios-MacBook-Pro:odoo mars$ brew cleanup
(odoo-env) Marcios-MacBook-Pro:odoo mars$ brew link node
Linking /usr/local/Cellar/node/7.2.0... 
Error: Could not symlink bin/node
Target /usr/local/bin/node
already exists. You may want to remove it:
  rm '/usr/local/bin/node'
To force the link and overwrite all conflicting files:
  brew link --overwrite node
To list all files that would be deleted:
  brew link --overwrite --dry-run node
(odoo-env) Marcios-MacBook-Pro:odoo mars$ brew cleanup
(odoo-env) Marcios-MacBook-Pro:odoo mars$ brew link node
Linking /usr/local/Cellar/node/7.2.0... 
Error: Could not symlink bin/node
Target /usr/local/bin/node
already exists. You may want to remove it:
  rm '/usr/local/bin/node'

To force the link and overwrite all conflicting files:
  brew link --overwrite node

To list all files that would be deleted:
  brew link --overwrite --dry-run node

Answer 3

我改变了这样的代码......

for (Wall lWalls : leftWalls){
        reelSprite1.setPosition(lWalls.getX(), lWalls.getY());
        reelSprite1.setOrigin(reelSprite1.getWidth()/2,reelSprite1.getHeight()/2);
        reelSprite1.setRotation(180);
        reelSprite1.draw(batch);

然后它奏效了。

从纹理图集创建精灵

3 个答案: