internal static ResourceNode TryParse(DataSource source)
{
CollisionHeader *header = (CollisionHeader *)source.Address;
if ((header->_numPoints < 0) || (header->_numPlanes < 0) || (header->_numObjects < 0) || (header->_unk1 < 0))
{
return(null);
}
if ((header->_pointOffset != 0x28) ||
(header->_planeOffset >= source.Length) || (header->_planeOffset <= header->_pointOffset) ||
(header->_objectOffset >= source.Length) || (header->_objectOffset <= header->_planeOffset))
{
return(null);
}
int *sPtr = header->_pad;
for (int i = 0; i < 5; i++)
{
if (sPtr[i] != 0)
{
return(null);
}
}
return(new CollisionNode());
}
public override void OnRebuild(VoidPtr address, int length, bool force)
{
CollisionHeader *header = (CollisionHeader *)address;
*header = new CollisionHeader(_pointCount, _planeCount, _objects.Count, _unk1);
BVec2 * pPoint = header->Points;
ColPlane * pPlane = header->Planes;
ColObject *pObj = header->Objects;
int iPoint = 0, iPlane = 0;
int lind, rind, llink, rlink, tmp;
int cPoint, cPlane;
lind = 0; rind = 0;
CollisionPlane current, next;
CollisionLink link;
foreach (CollisionObject obj in _objects)
{
//Sets bounds and entry indices
obj.Prepare();
cPoint = iPoint;
cPlane = iPlane;
foreach (CollisionPlane plane in obj._planes)
{
if (plane._encodeIndex != -1)
{
continue;
}
current = next = plane;
Top:
//Update variables, moving to next plane and links
llink = current._encodeIndex;
current = next;
next = null;
rlink = -1;
//Get left point index, and encode where necessary
if ((link = current._linkLeft)._encodeIndex == -1)
{
pPoint[link._encodeIndex = lind = iPoint++] = link._rawValue;
}
else
{
lind = link._encodeIndex;
}
//Get right point index and encode.
if ((link = current._linkRight)._encodeIndex == -1)
{
pPoint[link._encodeIndex = rind = iPoint++] = link._rawValue;
}
else
{
rind = link._encodeIndex;
}
//Right-link planes by finding next available
if (link != null)
{
foreach (CollisionPlane p in link._members)
{
if ((p == current) || (p._linkLeft != link))
{
continue; //We only want to go left-to-right!
}
//Determine if entry has been encoded yet
if ((tmp = p._encodeIndex) != -1)
{
if (pPlane[tmp]._link1 != -1)
{
continue; //Already linked, try again
}
else
{
pPlane[rlink = tmp]._link1 = (short)iPlane; //Left link, which means the end!
}
}
else
{
next = p;
rlink = iPlane + 1;
}
break;
}
}
//Create entry
pPlane[current._encodeIndex = iPlane++] = new ColPlane(lind, rind, llink, rlink, current._type, current._flags2, current._flags, current._material);
//Traverse
if (next != null)
{
goto Top;
}
}
*pObj++ = new ColObject(cPlane, iPlane - cPlane, cPoint, iPoint - cPoint, obj._boxMin, obj._boxMax, obj._modelName, obj._boneName,
obj._unk1, obj._unk2, obj._unk3, obj._flags, obj._unk5, obj._unk6, obj._boneIndex);
}
}
