public CollisionModel FindModel(string name)
{
// check if this model is already loaded
int i, count = _models.Length;
for(i = 0; i < count; i++)
{
if((_models[i] != null) && (_models[i].Name.Equals(name, StringComparison.OrdinalIgnoreCase) == true))
{
return _models[i];
}
}
return null;
}