fix(terrain): map surface colors with configurable projection

src/data/world/terrainConfig.ts

@@ -2,6 +2,12 @@ import type { TerrainSurfaceColorConfig } from "@/types/world/terrainSurface";
 
 export const TERRAIN_MODEL_PATH = "/models/terrain/model.gltf";
 export const TERRAIN_SURFACE_COLOR_TOLERANCE = 15;
+export const TERRAIN_SURFACE_PROJECTION = {
+  flipX: false,
+  flipZ: true,
+  offsetX: 0,
+  offsetZ: 0,
+};
 export const TERRAIN_WATER_HEIGHT = 0;
 export const TERRAIN_TILE_SIZE = 1;
 export const GRASS_BASE_COLOR = "#1a3a1a";