/// <summary>
/// Gets all <see cref="Leaf"/> objects referenced by this <see cref="Model"/>.
/// </summary>
/// <param name="bsp">This <see cref="BSP"/>.</param>
/// <param name="model">The <see cref="Model"/> to get all <see cref="Leaf"/> objects from.</param>
/// <returns>A <see cref="List{T}"/><<see cref="Leaf"/>> containing all <see cref="Leaf"/> objects referenced by <paramref name="model"/>.</returns>
public static List <Leaf> GetLeavesInModel(this BSP bsp, Model model)
{
List <Leaf> result = null;
if (model.FirstLeafIndex < 0)
{
if (model.HeadNodeIndex >= 0)
{
result = bsp.GetLeavesInNode(bsp.nodes[model.HeadNodeIndex]);
}
}
else
{
result = new List <Leaf>(model.NumLeaves);
for (int i = 0; i < model.NumLeaves; i++)
{
result.Add(bsp.leaves[model.FirstLeafIndex + i]);
}
}
return(result);
}