LevelHelper：销毁并重建物理实体

Question

Using LH with cocos2d and Box2d

I have a ball (dynamic body) which goes out of the screen.

I would like to destroy and recreate it, placing it back in its initial position.

Without LevelHelper, I would do it via destroyBody and createBody.

How do I do it with LevelHelper?

Answer 1

您只需在销毁之前复制ball的lhsprite对象，然后再创建球，只需将复制的lhsprite对象添加到图层即可。

Answer 2

Simpler answer would be

LHSprite *sprite ;//(let us assume this is your sprite) CCPoint originalPos = sprite->getPosition();

if(sprite->position is out of screen){ sprite->getBody->setTransform(b2vec2(originalPos.x/PTM_RATIO, originalPos.y/PTM_RATIO),0); }

Simple. Hope this helps :)