cocos2dx笔记编

烁灵 posted @ 2014年11月12日 10:43 in Cocos2dx , 1315 阅读

 

2014年11月12日10:43:31:

求旋转角:

float w = _pt.x - pt.x;
float h = _pt.y - pt.y;
float rot = -atan2(h, w);
blt->m_arma->setRotation(CC_RADIANS_TO_DEGREES(rot));

 

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