void Slice::SliceShapePostStep(cpSpace *space, cpShape *shape, struct SliceContext *context)
{
cpVect a = context->a;
cpVect b = context->b;
// Clipping plane normal and distance.
cpVect n = cpvnormalize(cpvperp(cpvsub(b, a)));
cpFloat dist = cpvdot(a, n);
ClipPoly(space, shape, n, dist);
ClipPoly(space, shape, cpvneg(n), -dist);
cpBody *body = cpShapeGetBody(shape);
cpSpaceRemoveShape(space, shape);
cpSpaceRemoveBody(space, body);
cpShapeFree(shape);
cpBodyFree(body);
}
//=====================================================================================
// CreateAllOutsidePortals
//=====================================================================================
geBoolean CreateAllOutsidePortals(GBSP_Node *Node)
{
int32 k, i, Index;
GBSP_Plane PPlanes[6];
GBSP_Portal *Portals[6];
memset(OutsideNode, 0, sizeof(GBSP_Node));
memset(PPlanes, 0, 6*sizeof(GBSP_Plane));
OutsideNode->PlaneNum = PLANENUM_LEAF;
OutsideNode->Contents = BSP_CONTENTS_SOLID2;
OutsideNode->Portals = NULL;
OutsideNode->BrushList = NULL;
// So there won't be NULL volume leafs when we create the outside portals
for (k=0; k< 3; k++)
{
if (VectorToSUB(NodeMins, k)-128 <= -MIN_MAX_BOUNDS || VectorToSUB(NodeMaxs, k)+128 >= MIN_MAX_BOUNDS)
{
GHook.Error("CreateAllOutsidePortals: World BOX out of range...\n");
return GE_FALSE;
}
VectorToSUB(NodeMins, k) -= (geFloat)128;
VectorToSUB(NodeMaxs, k) += (geFloat)128;
}
// Create 6 portals, and point to the outside and the RootNode
for (i=0; i<3; i++)
{
for (k=0; k<2; k++)
{
Index = k*3 + i;
geVec3d_Clear(&PPlanes[Index].Normal);
if (k == 0)
{
VectorToSUB(PPlanes[Index].Normal, i) = (geFloat)1;
PPlanes[Index].Dist = VectorToSUB(NodeMins, i);
}
else
{
VectorToSUB(PPlanes[Index].Normal, i) = (geFloat)-1;
PPlanes[Index].Dist = -VectorToSUB(NodeMaxs, i);
}
Portals[Index] = CreateOutsidePortal(&PPlanes[Index], Node);
if (!Portals[Index])
return GE_FALSE;
}
}
for (i=0; i< 6; i++)
{
for (k=0; k< 6; k++)
{
if (k == i)
continue;
if (!ClipPoly(Portals[i]->Poly, &PPlanes[k], GE_FALSE, &Portals[i]->Poly))
{
GHook.Error("CreateAllOutsidePortals: There was an error clipping the portal.\n");
return GE_FALSE;
}
if (!Portals[i]->Poly)
{
GHook.Error("CreateAllOutsidePortals: Portal was clipped away.\n");
return GE_FALSE;
}
}
}
return GE_TRUE;
}
