Note: The BoundingModel type has been removed from the Lua API.

Bounding model functionality is now managed directly on entity types (NPC, Player, GameObject) using:

• set_bounding_model(x1, x2, y1, y2, z1, z2) - Set custom bounding model dimensions
• remove_bounding_model() - Remove custom bounding model and fall back to default

The bounding model dimensions are stored on the entity and are used automatically when calculating interaction points via methods like next_point() and base_point().