我正在使用 DigitalOnScreenControl 来移动玩家精灵。但问题是我的玩家精灵离开了模拟器屏幕。我希望玩家精灵被限制在特定范围内移动,并且当我的精灵继续移动时,相机也可以专注于玩家精灵。
我正在尝试这段代码:
public Scene onLoadScene() {
// Auto-generated method stub
this.mEngine.registerUpdateHandler(new FPSLogger());
final Scene mScene=new Scene();
mScene.setBackground(new ColorBackground(0.09804f, 0.6274f, 0.8784f));
final int centerX=(CAMERA_WIDTH-this.mPlayerTextureRegion.getWidth())/2;
final int centerY=(CAMERA_HEIGHT-this.mPlayerTextureRegion.getHeight())/2;
final Sprite player=new Sprite(centerX, centerY, this.mPlayerTextureRegion);
this.mCamera.setChaseEntity(player);
final PhysicsHandler physicsHandler=new PhysicsHandler(player);
player.registerUpdateHandler(physicsHandler);
mScene.attachChild(player);
this.mDigitalOnScreenControl=new DigitalOnScreenControl(0,CAMERA_HEIGHT-mOnScreenControlBaseTextureRegion.getHeight(),this.mCamera,this.mOnScreenControlBaseTextureRegion,this.mOnScreenControlKnobTextureRegion,0.1f,new IOnScreenControlListener() {
@Override
public void onControlChange(BaseOnScreenControl pBaseOnScreenControl,
float pValueX, float pValueY) {
// TODO Auto-generated method stub
physicsHandler.setVelocity(pValueX*100, pValueY*100);
}
});
this.mDigitalOnScreenControl.getControlBase().setBlendFunction(GL10.GL_SRC_ALPHA, GL10.GL_ONE_MINUS_SRC_ALPHA);
this.mDigitalOnScreenControl.getControlBase().setAlpha(0.5f);
this.mDigitalOnScreenControl.getControlBase().setScaleCenter(0, 128);
this.mDigitalOnScreenControl.getControlBase().setScale(1.25f);
this.mDigitalOnScreenControl.getControlKnob().setScale(1.25f);
this.mDigitalOnScreenControl.refreshControlKnobPosition();
mScene.setChildScene(this.mDigitalOnScreenControl);
return mScene;
}
老实说,我是andEngine
开发中的新手,请提前帮助我。