update : add map model + octree algo

src/types/debug.ts

@@ -1 +1,2 @@
 export type CameraMode = "player" | "debug";
+export type SceneMode = "game" | "physics";

src/types/three-addons.d.ts

@@ -0,0 +1,33 @@
+declare module "three/addons/math/Capsule.js" {
+  import { Vector3 } from "three";
+
+  export class Capsule {
+    start: Vector3;
+    end: Vector3;
+    radius: number;
+
+    constructor(start?: Vector3, end?: Vector3, radius?: number);
+
+    set(start: Vector3, end: Vector3, radius: number): this;
+    clone(): Capsule;
+    copy(capsule: Capsule): this;
+    getCenter(target: Vector3): Vector3;
+    translate(v: Vector3): this;
+  }
+}
+
+declare module "three/addons/math/Octree.js" {
+  import { Object3D } from "three";
+  import { Capsule } from "three/addons/math/Capsule.js";
+
+  export interface CapsuleIntersectResult {
+    normal: import("three").Vector3;
+    depth: number;
+  }
+
+  export class Octree {
+    constructor();
+    fromGraphNode(group: Object3D): this;
+    capsuleIntersect(capsule: Capsule): CapsuleIntersectResult | false;
+  }
+}