Function G2API_CollisionDetect

code/rd-vanilla/G2_API.cpp:1899–1944

void G2API_CollisionDetect(CCollisionRecord *collRecMap, CGhoul2Info_v &ghoul2, const vec3_t angles, const vec3_t position,
							int AframeNumber, int entNum, vec3_t rayStart, vec3_t rayEnd, vec3_t scale, CMiniHeap *,
							EG2_Collision eG2TraceType, int useLod, float fRadius)
{
	G2ERROR(ghoul2.IsValid(),"Invalid ghlInfo");
	G2ERROR(collRecMap,"NULL Collision Rec");
	if (G2_SetupModelPointers(ghoul2)&&collRecMap)
	{
		int frameNumber=G2API_GetTime(AframeNumber);

		vec3_t	transRayStart, transRayEnd;

		// make sure we have transformed the whole skeletons for each model
		G2_ConstructGhoulSkeleton(ghoul2, frameNumber,true, scale);

		// pre generate the world matrix - used to transform the incoming ray
		G2_GenerateWorldMatrix(angles, position);

		ri.GetG2VertSpaceServer()->ResetHeap();

		// now having done that, time to build the model
#ifdef _G2_GORE
		G2_TransformModel(ghoul2, frameNumber, scale, ri.GetG2VertSpaceServer(), useLod, false);
#else
		G2_TransformModel(ghoul2, frameNumber, scale,ri.GetG2VertSpaceServer(), useLod);
#endif

		// model is built. Lets check to see if any triangles are actually hit.
		// first up, translate the ray to model space
		TransformAndTranslatePoint(rayStart, transRayStart, &worldMatrixInv);
		TransformAndTranslatePoint(rayEnd, transRayEnd, &worldMatrixInv);

		// now walk each model and check the ray against each poly - sigh, this is SO expensive. I wish there was a better way to do this.
#ifdef _G2_GORE
		G2_TraceModels(ghoul2, transRayStart, transRayEnd, collRecMap, entNum, eG2TraceType, useLod, fRadius,0,0,0,0,0,qfalse);
#else
		G2_TraceModels(ghoul2, transRayStart, transRayEnd, collRecMap, entNum, eG2TraceType, useLod, fRadius);
#endif

		ri.GetG2VertSpaceServer()->ResetHeap();
		// now sort the resulting array of collision records so they are distance ordered
		qsort( collRecMap, MAX_G2_COLLISIONS,
			sizeof( CCollisionRecord ), QsortDistance );
		G2ANIM(ghoul2,"G2API_CollisionDetect");
	}
}

qboolean G2API_SetGhoul2ModelFlags(CGhoul2Info *ghlInfo, const int flags)
{