Type for mapping 2D (X,Z) tile coordinates to a Terrain object.
| terrainTiles | Mapping from TileCoord to Terrain. |
| GetTerrain | Retrieves the Terrain object corresponding to the tile coordinates (tileX,tileZ). |
| CreateFromConnectedNeighbors | Creates a TerrainMap from the neighbors connected to the origin Terrain. |
| CreateFromPlacement | Creates a TerrainMap from the positions of all active Terrains. |