Chipmunk Physics

Code: Select all

static inline cpFloat
segmentQuery(cpSpaceHash *hash, cpSpaceHashBin *bin, void *obj, cpSpaceHashSegmentQueryFunc func, void *data)
{
	for(; bin; bin = bin->next){
		cpHandle *hand = bin->handle;
		void *other = hand->obj;
		
		// Skip over certain conditions
		if(
			// Have we already tried this pair in this query?
			hand->stamp == hash->stamp
			// Has other been removed since the last rehash?
			|| !other
			) continue;
		
		// Stamp that the handle was checked already against this object.
		hand->stamp = hash->stamp;
		
		return func(obj, other, data);
	}
	
	return 1.0f;
}

Code: Select all

static inline cpFloat
segmentQuery(cpSpaceHash *hash, cpSpaceHashBin *bin, void *obj, cpSpaceHashSegmentQueryFunc func, void *data)
{
	cpFloat t = 1.0f;
	for(; bin; bin = bin->next){
		cpHandle *hand = bin->handle;
		void *other = hand->obj;
		
		// Skip over certain conditions
		if(
			// Have we already tried this pair in this query?
			hand->stamp == hash->stamp
			// Has other been removed since the last rehash?
			|| !other
			) continue;
		
		// Stamp that the handle was checked already against this object.
		hand->stamp = hash->stamp;

		cpFloat ft = func(obj, other, data);
		if (ft < t) t = ft;
	}
	
	return t;
}