refactor: tighten terrain and sky model resource ownership

src/world/map-instancing/mapInstancingConfig.ts

@@ -0,0 +1,80 @@
+export const MAP_INSTANCING_ASSETS = {
+  generateur: {
+    mapName: "generateur",
+    modelPath: "/models/generateur/model.gltf",
+    castShadow: true,
+    receiveShadow: true,
+    enabled: true,
+  },
+  lafabrik: {
+    mapName: "lafabrik",
+    modelPath: "/models/lafabrik/model.gltf",
+    castShadow: true,
+    receiveShadow: true,
+    enabled: true,
+  },
+  fermeverticale: {
+    mapName: "fermeverticale",
+    modelPath: "/models/fermeverticale/model.gltf",
+    castShadow: true,
+    receiveShadow: true,
+    enabled: true,
+  },
+  boiteauxlettres: {
+    mapName: "boiteauxlettres",
+    modelPath: "/models/boiteauxlettres/model.gltf",
+    castShadow: true,
+    receiveShadow: true,
+    enabled: true,
+  },
+  pylone: {
+    mapName: "pylone",
+    modelPath: "/models/pylone/model.gltf",
+    castShadow: true,
+    receiveShadow: true,
+    enabled: true,
+  },
+  immeuble1: {
+    mapName: "immeuble1",
+    modelPath: "/models/immeuble1/model.gltf",
+    castShadow: true,
+    receiveShadow: true,
+    enabled: true,
+  },
+  maison1: {
+    mapName: "maison1",
+    modelPath: "/models/maison1/model.gltf",
+    castShadow: true,
+    receiveShadow: true,
+    enabled: true,
+  },
+  eolienne: {
+    mapName: "eolienne",
+    modelPath: "/models/eolienne/model.gltf",
+    castShadow: true,
+    receiveShadow: true,
+    enabled: true,
+  },
+  parcebike: {
+    mapName: "parcebike",
+    modelPath: "/models/parcebike/model.gltf",
+    castShadow: true,
+    receiveShadow: true,
+    enabled: true,
+  },
+} as const;
+
+export type MapInstancingAssetType = keyof typeof MAP_INSTANCING_ASSETS;
+
+export type MapInstancingAssetConfig =
+  (typeof MAP_INSTANCING_ASSETS)[MapInstancingAssetType];
+
+export const MAP_INSTANCED_NODE_NAMES: ReadonlySet<string> = new Set(
+  Object.values(MAP_INSTANCING_ASSETS)
+    .filter((config) => config.enabled)
+    .map((config) => config.mapName),
+);
+
+export function isInstancedMapNodeName(name: string): boolean {
+  return MAP_INSTANCED_NODE_NAMES.has(name);
+}