Type is an unsigned short int.

Material types:		0x1000 + Index		game::LoadMaterial(ifstream*)

Item types:		0x2000 + Index		game::LoadItem(ifstream*)

Character types:	0x3000 + Index		game::LoadCharacter(ifstream*)

Terrain types:
L-G-Terrain:		0x4000 + Index		game::LoadLevelGroundTerrain(ifstream*)
L-O-Terrain:		0x4400 + Index		game::LoadLevelOverTerrain(ifstream*)
W-G-Terrain:		0x4800 + Index		game::LoadWorldMapGroundTerrain(ifstream*)
W-O-Terrain:		0x4C00 + Index		game::LoadWorldMapOverTerrain(ifstream*)