void DeleteDecal(int which);
void MakeDecal(decal_type type, XYZ where, float size, float opacity, float rotation);
void MakeDecalLock(decal_type type, XYZ where, int whichx, int whichy, float size, float opacity, float rotation);
void DeleteDecal(int which);
void MakeDecal(decal_type type, XYZ where, float size, float opacity, float rotation);
void MakeDecalLock(decal_type type, XYZ where, int whichx, int whichy, float size, float opacity, float rotation);