In the sources I replace the struct Lodlevel by the class KX_LodLevel who contains:
- the level
- the square distance
- the mesh
KX_LodLevel are put in KX_LodLevels who's equivalent to a list of lod meshes for a KX_GameObject.
KX_LodLevels contains a function named GetDistance2ToLodLevel(float distance2) to get the current lod level for the distance.
sorry for my bad English.