cpSpatialIndexBBFunc

Spatial indexes are data structures that are used to accelerate collision detection and spatial queries. Chipmunk provides a number of spatial index algorithms to pick from and they are programmed in a generic way so that you can use them for holding more than just cpShape structs.

It works by using void pointers to the objects you add and using a callback to ask your code for bounding boxes when it needs them. Several types of queries can be performed an index as well as reindexing and full collision information. All communication to the spatial indexes is performed through callback functions.

Spatial indexes should be treated as opaque structs. This meanns you shouldn't be reading any of the struct fields. */ /// Spatial index bounding box callback function type. /// The spatial index calls this function and passes you a pointer to an object you added /// when it needs to get the bounding box associated with that object

alias cpSpatialIndexBBFunc = cpBB function(
void* obj
)

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