add tower builing game

public/tower_game-master/index.js

@@ -0,0 +1,17 @@
+const express = require('express')
+const path = require('path')
+const opn = require('opn')
+
+const server = express()
+const host = 'http://localhost:8082'
+server.use('/assets', express.static(path.resolve(__dirname, './assets')))
+server.use('/dist', express.static(path.resolve(__dirname, './dist')))
+
+server.get('*', (req, res) => {
+  res.sendFile(path.resolve(__dirname, './index.html'));
+})
+
+server.listen(8082, () => {
+  console.log(`server started at ${host}`)
+  opn(host)
+})