add typescript conf

package.json

@@ -3,12 +3,13 @@
   "version": "0.2.3",
   "scripts": {
     "dev": "vite",
-    "build": "vite build",
+    "build": "vue-tsc --noEmit && vite build",
     "rollup": "rollup -c"
   },
   "devDependencies": {
     "@rollup/plugin-buble": "^0.21.3",
     "@rollup/plugin-replace": "^2.3.3",
+    "@types/three": "^0.127.1",
     "@vitejs/plugin-vue": "^1.2.1",
     "@vue/compiler-sfc": "^3.0.11",
     "cannon": "^0.6.2",
@@ -25,8 +26,10 @@
     "rollup-plugin-vue": "^6.0.0-beta.11",
     "stats.js": "0.17.0",
     "three": "^0.127",
+    "typescript": "^4.1.3",
     "vite": "^2.1.5",
-    "vue": "^3.0.11"
+    "vue": "^3.0.11",
+    "vue-tsc": "^0.0.15"
   },
   "main": "build/trois.js",
   "module": "build/trois.module.js",

tsconfig.json

@@ -0,0 +1,11 @@
+{
+  "compilerOptions": {
+    "target": "esnext",
+    "module": "esnext",
+    // this enables stricter inference for data properties on `this`
+    "strict": true,
+    "jsx": "preserve",
+    "moduleResolution": "node",
+  },
+  "include": ["src"]
+}