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Clarify data structure and usage

This commit is contained in:
aidandavey 2025-11-05 19:11:44 +00:00
parent 58d141e768
commit e4f266b651
1 changed files with 3 additions and 2 deletions
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5
src/terrain_3d_instancer.h
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@ -28,8 +28,9 @@ private:
// MM Resources stored in Terrain3DRegion::_instances as
// Region::_instances{mesh_id:int} -> cell{v2i} -> [ TypedArray<Transform3D>, PackedColorArray, modified:bool ]
// MMI Objects, freed in destructor, stored as
// _mmi_nodes{region_loc} -> mesh{v2i(mesh_id,lod)} -> cell{v2i} -> RID
// A pair of MMI and MM RIDs, freed in destructor, stored as
// _region_mmis{region_loc} -> mesh{v2i(mesh_id,lod)} -> cell{v2i} -> std::pair<mmi.RID, mm.RID>
using CellMMIDict = std::unordered_map<Vector2i, std::pair<RID, RID>, Vector2iHash>;
using MeshMMIDict = std::unordered_map<Vector2i, CellMMIDict, Vector2iHash>;
std::unordered_map<Vector2i, MeshMMIDict, Vector2iHash> _region_mmis;