ios - 使用 Chipmunk 和 cocos2d 查找最近点

Question

使用 cocos2d 和 chipmunk，我尝试让不同的对象围绕在 Sprite (例如炸弹)上，这样我就可以对它们施加冲动。我首先在我的项目之上添加了这个:

#import "ObjectiveChipmunk/ObjectiveChipmunk.h"
#import "CCPhysics+ObjectiveChipmunk.h"

然后是代码:

ChipmunkSpace *space = [_physicsNode space];
cpVect origin = item.position;
for(ChipmunkPointQueryInfo *info in [space pointQueryNearest:origin maxDistance:32.0f filter:CP_SHAPE_FILTER_ALL])
 {
CCLOG(@"Found one body"); 
}

我收到此错误:

 -[ChipmunkPointQueryInfo countByEnumeratingWithState:objects:count:]: unrecognized selector sent to instance 0x813cdca0

有什么问题？

Answer 1

你的代码应该是

ChipmunkPointQueryInfo *info=[space pointQueryNearest:origin maxDistance:32.0f filter:CP_SHAPE_FILTER_ALL];

pointQueryNearest 不返回数组，因为您正在尝试枚举。

干杯。