public long ParseBSP3DNodes(BSP bsp, BinaryReader reader, int count)
{
bsp.Bsp3dNodes = new List <BSP.Bsp3dNode>();
long originalPos = reader.BaseStream.Position;
for (uint i = 0; i < count; ++i)
{
var bsp3dNode = new BSP.Bsp3dNode();
reader.BaseStream.Position = originalPos + (i * BSP3DNODE_SIZE);
var plane_idx = BitConverter.ToInt32(reader.ReadBytes(4).Reverse().ToArray(), 0);
var back_child = BitConverter.ToInt32(reader.ReadBytes(4).Reverse().ToArray(), 0);
var front_child = BitConverter.ToInt32(reader.ReadBytes(4).Reverse().ToArray(), 0);
//compress back and front children to int24.
//remove bits 24 and above
var back_child_trun = back_child & 0x7fffff;
var front_child_trun = front_child & 0x7fffff;
//add the new signs
if (back_child < 0)
{
back_child_trun |= 0x800000;
}
if (front_child < 0)
{
front_child_trun |= 0x800000;
}
//truncate the plane index with control over the result
int uplane_idx = (plane_idx & 0x7fff);
if (plane_idx < 0)
{
uplane_idx |= 0x8000;
}
//perhaps put message here to notify that plane index was out of the range
bsp3dNode.Plane = (short)uplane_idx;
bsp3dNode.BackChildLower = (byte)(back_child_trun & 0xff);
bsp3dNode.BackChildMid = (byte)((back_child_trun >> 8) & 0xff);
bsp3dNode.BackChildUpper = (byte)((back_child_trun >> 16) & 0xff);
bsp3dNode.FrontChildLower = (byte)(front_child_trun & 0xff);
bsp3dNode.FrontChildMid = (byte)((front_child_trun >> 8) & 0xff);
bsp3dNode.FrontChildUpper = (byte)((front_child_trun >> 16) & 0xff);
bsp.Bsp3dNodes.Add(bsp3dNode);
}
return(originalPos + (count * BSP3DNODE_SIZE));
}
public long ParseBSP3DNodes(BSP bsp, BinaryReader reader, int count)
{
bsp.Bsp3dNodes = new List<BSP.Bsp3dNode>();
long originalPos = reader.BaseStream.Position;
for (uint i = 0; i < count; ++i)
{
var bsp3dNode = new BSP.Bsp3dNode();
reader.BaseStream.Position = originalPos + (i * BSP3DNODE_SIZE);
var plane_idx = BitConverter.ToInt32(reader.ReadBytes(4).Reverse().ToArray(), 0);
var back_child = BitConverter.ToInt32(reader.ReadBytes(4).Reverse().ToArray(), 0);
var front_child = BitConverter.ToInt32(reader.ReadBytes(4).Reverse().ToArray(), 0);
//compress back and front children to int24.
//remove bits 24 and above
var back_child_trun = back_child & 0x7fffff;
var front_child_trun = front_child & 0x7fffff;
//add the new signs
if (back_child < 0)
back_child_trun |= 0x800000;
if (front_child < 0)
front_child_trun |= 0x800000;
//truncate the plane index with control over the result
int uplane_idx = (plane_idx & 0x7fff);
if (plane_idx < 0)
uplane_idx |= 0x8000;
//perhaps put message here to notify that plane index was out of the range
bsp3dNode.Plane = (short)uplane_idx;
bsp3dNode.BackChildLower = (byte)(back_child_trun & 0xff);
bsp3dNode.BackChildMid = (byte)((back_child_trun >> 8) & 0xff);
bsp3dNode.BackChildUpper = (byte)((back_child_trun >> 16) & 0xff);
bsp3dNode.FrontChildLower = (byte)(front_child_trun & 0xff);
bsp3dNode.FrontChildMid = (byte)((front_child_trun >> 8) & 0xff);
bsp3dNode.FrontChildUpper = (byte)((front_child_trun >> 16) & 0xff);
bsp.Bsp3dNodes.Add(bsp3dNode);
}
return originalPos + (count * BSP3DNODE_SIZE);
}
