feat(world): add map lod graphics presets

src/data/world/graphicsConfig.ts

@@ -1,4 +1,55 @@
+import { CHUNK_CONFIG } from "@/data/world/chunkStreamingConfig";
+
+export const GRAPHICS_PRESET_KEYS = ["low", "medium", "high", "ultra"] as const;
+
+export type GraphicsPreset = (typeof GRAPHICS_PRESET_KEYS)[number];
+
+export interface GraphicsPresetConfig {
+  chunkLoadRadius: number;
+  chunkUnloadRadius: number;
+  fogEnabled: boolean;
+  forceLodModels: boolean;
+  label: string;
+  lodHighDetailDistance: number;
+}
+
+export const GRAPHICS_PRESETS = {
+  low: {
+    label: "Basse",
+    chunkLoadRadius: 10,
+    chunkUnloadRadius: 18,
+    fogEnabled: true,
+    forceLodModels: true,
+    lodHighDetailDistance: 0,
+  },
+  medium: {
+    label: "Moyenne",
+    chunkLoadRadius: 20,
+    chunkUnloadRadius: 30,
+    fogEnabled: true,
+    forceLodModels: true,
+    lodHighDetailDistance: 0,
+  },
+  high: {
+    label: "High",
+    chunkLoadRadius: CHUNK_CONFIG.loadRadius,
+    chunkUnloadRadius: CHUNK_CONFIG.unloadRadius,
+    fogEnabled: false,
+    forceLodModels: false,
+    lodHighDetailDistance: 10,
+  },
+  ultra: {
+    label: "Ultra",
+    chunkLoadRadius: 50,
+    chunkUnloadRadius: 65,
+    fogEnabled: false,
+    forceLodModels: false,
+    lodHighDetailDistance: 20,
+  },
+} as const satisfies Record<GraphicsPreset, GraphicsPresetConfig>;
+
 export const GRAPHICS_DEFAULTS = {
+  preset: "high" as GraphicsPreset,
   dynamicGrass: true,
   dynamicTrees: true,
   dynamicClouds: true,

src/data/world/mapLodConfig.ts

@@ -0,0 +1,44 @@
+import {
+  GRAPHICS_PRESETS,
+  type GraphicsPreset,
+} from "@/data/world/graphicsConfig";
+
+export const MAP_LOD_MODEL_PATHS = {
+  ebike: "/models/ebike-LOD/model.gltf",
+  eolienne: "/models/eolienne-LOD/model.gltf",
+  pylone: "/models/pylone-LOD/model.gltf",
+  boiteimmeuble: "/models/boiteimmeuble-LOD/model.gltf",
+  ecole: "/models/ecole-LOD/model.gltf",
+  immeuble1: "/models/immeuble1-LOD/model.gltf",
+  maison1: "/models/maison1-LOD/model.gltf",
+  panneauaffichage: "/models/panneauaffichage-LOD/model.gltf",
+  talkie: "/models/talkie-LOD/model.gltf",
+} as const satisfies Record<string, string>;
+
+export function getMapLodModelPath(modelName: string): string | null {
+  return (
+    MAP_LOD_MODEL_PATHS[modelName as keyof typeof MAP_LOD_MODEL_PATHS] ?? null
+  );
+}
+
+export function selectMapModelPathByDistance({
+  distance,
+  modelName,
+  modelPath,
+  preset,
+}: {
+  distance: number;
+  modelName: string;
+  modelPath: string;
+  preset: GraphicsPreset;
+}): string {
+  const lodModelPath = getMapLodModelPath(modelName);
+  if (!lodModelPath) return modelPath;
+
+  const presetConfig = GRAPHICS_PRESETS[preset];
+  if (presetConfig.forceLodModels) return lodModelPath;
+
+  return distance <= presetConfig.lodHighDetailDistance
+    ? modelPath
+    : lodModelPath;
+}