diff --git a/README.md b/README.md
index bf5f5d2..766d60d 100644
--- a/README.md
+++ b/README.md
@@ -16,4 +16,11 @@ Output files will be in `dist` folder. Check https://vitejs.dev/guide/static-dep
 This online demo is deployed on github pages. You can use workflow config file as a reference.
 
 ## Online Demo
-https://acyanbird.github.io/pillbug/
\ No newline at end of file
+https://acyanbird.github.io/pillbug/
+
+## TODO
+- [ ] Reduce duplicated code in single file
+- [ ] Reduce by create common.js
+- [ ] Loading page
+- [ ] CSS overflow problem
+- [ ] Animation using tween(?) or other library
diff --git a/day.js b/day.js
index 54742c4..a406af4 100644
--- a/day.js
+++ b/day.js
@@ -1,5 +1,5 @@
 import * as THREE from "three"
-import {GLTFLoader} from "three/addons";
+import { GLTFLoader } from 'three/examples/jsm/loaders/GLTFLoader';
 
 import grassimg from "./assets/gm.jpg";
 import modelpath from "./assets/pill.glb";
@@ -21,7 +21,7 @@ let keysPressed = {};
 
 let camera, cameraUpper, CurrentCamera;
 let scene, renderer, canvas, controls, ground;
-let ambientLight, light;
+let ambientLight
 
 let life = 3;
 let score = 0;
@@ -117,7 +117,7 @@ function createPlane(){
     texture.wrapT = THREE.RepeatWrapping;
     texture.repeat.set( 1, 12 );
     // smoother surface
-    let geometry = new THREE.PlaneGeometry(10, 120, 5, 5);
+    let geometry = new THREE.PlaneGeometry(10, 120, 1, 12);
     // self lighting red
     let material = new THREE.MeshPhongMaterial({map: texture, side: THREE.DoubleSide});
     let plane = new THREE.Mesh( geometry, material );
diff --git a/night.js b/night.js
index 76889f0..1f14be6 100644
--- a/night.js
+++ b/night.js
@@ -1,5 +1,6 @@
 import * as THREE from "three"
-import {GLTFLoader} from "three/addons";
+import { GLTFLoader } from 'three/examples/jsm/loaders/GLTFLoader';
+
 import modelpath from "./assets/pill.glb";
 import gameover from "./assets/gameover.wav";
 import loselife from "./assets/loselife.wav";
@@ -113,7 +114,7 @@ function createCamera(y) {
 
 function createPlane(){
     // smoother surface
-    let geometry = new THREE.PlaneGeometry(13, 60, 5, 5);
+    let geometry = new THREE.PlaneGeometry(13, 60, 2, 10);
     // self lighting red
     let material = new THREE.MeshPhongMaterial({color: 0x999999, emissive: 0xff0000, emissiveIntensity: 0.2, side: THREE.DoubleSide});
     let plane = new THREE.Mesh( geometry, material );
diff --git a/package-lock.json b/package-lock.json
index 5fc0948..a43deb9 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,15 +1,14 @@
 {
-  "name": "graphic course work pillbug adventure",
+  "name": "graphic course work pillbug",
   "version": "0.0.1",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
-      "name": "graphic course work pillbug adventure",
+      "name": "graphic course work pillbug",
       "version": "0.0.1",
       "dependencies": {
-        "three": "^0.159.0",
-        "three-gltf-loader": "^1.111.0"
+        "three": "^0.159.0"
       },
       "devDependencies": {
         "vite": "^5.0.10"
@@ -682,15 +681,6 @@
       "resolved": "https://registry.npmjs.org/three/-/three-0.159.0.tgz",
       "integrity": "sha512-eCmhlLGbBgucuo4VEA9IO3Qpc7dh8Bd4VKzr7WfW4+8hMcIfoAVi1ev0pJYN9PTTsCslbcKgBwr2wNZ1EvLInA=="
     },
-    "node_modules/three-gltf-loader": {
-      "version": "1.111.0",
-      "resolved": "https://registry.npmjs.org/three-gltf-loader/-/three-gltf-loader-1.111.0.tgz",
-      "integrity": "sha512-f2d6J5sMEC+dvRcpRjE8g9vqtvpNfnR7bgd+R7Y0dj2mmHwKN5luKe/WYA0Z9+j7mhjla/AC5DGxdXsu8wFhug==",
-      "deprecated": "Starting with three.js r103, GLTFLoader is included in the three package itself and installing three-gltf-loader is no longer necessary. It can be imported from 'three/examples/jsm/loaders/GLTFLoader'",
-      "peerDependencies": {
-        "three": ">=0.111.0"
-      }
-    },
     "node_modules/vite": {
       "version": "5.0.10",
       "resolved": "https://registry.npmjs.org/vite/-/vite-5.0.10.tgz",
diff --git a/package.json b/package.json
index 586da1d..875e866 100644
--- a/package.json
+++ b/package.json
@@ -11,7 +11,6 @@
     "vite": "^5.0.10"
   },
   "dependencies": {
-    "three": "^0.159.0",
-    "three-gltf-loader": "^1.111.0"
+    "three": "^0.159.0"
   }
 }