A "simple" Snake, done as my final JS class project back in DUT
https://snek.s.codinget.me
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103 lines
2.8 KiB
103 lines
2.8 KiB
const DB=require('better-sqlite3');
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const {Router}=require('express');
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const db=new DB('db.sqlite');
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const api=new Router();
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const leaderboardSelect='SELECT username, score, length, time, speed FROM leaderboards';
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const getLeaderboardsBy={
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score: db.prepare(`${leaderboardSelect} WHERE mode=? ORDER BY score DESC LIMIT ? OFFSET ?`),
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timeA: db.prepare(`${leaderboardSelect} WHERE mode=? ORDER BY time ASC LIMIT ? OFFSET ?`),
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timeD: db.prepare(`${leaderboardSelect} WHERE mode=? ORDER BY time DESC LIMIT ? OFFSET ?`)
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};
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const addLeaderboard=db.prepare(`
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INSERT
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INTO leaderboards(mode, username, score, length, time, speed)
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VALUES(@mode, @username, @score, @length, @time, @speed)
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`);
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const levelList=require('./assets/levelList.json');
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const validMode=mode => {
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try {
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const [category, name]=mode.split('/');
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return levelList[category].levels.map(l => ''+l).includes(name);
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} catch(e) {
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return false;
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}
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};
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api.get('/leaderboards/:category/:id', (req, res) => {
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const sort=req.query.sort || 'score';
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if(!['score', 'timeA', 'timeD'].includes(sort)) return res.status(400).json({
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ok: false,
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err: 'Invalid sort'
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});
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const results=+req.query.results || 20;
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if((typeof results)!='number' || results<1 || results >100) return res.status(400).json({
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ok: false,
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err: 'Invalid result count'
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});
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const page=+req.query.page || 1;
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if((typeof page)!='number' || page<1) return res.status(400).json({
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ok: false,
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err: 'Invalid page'
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});
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const data=getLeaderboardsBy[sort]
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.all(req.params.category+'/'+req.params.id, results, (page-1)*results);
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return res.status(200).json({
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ok: true,
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data
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});
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});
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api.post('/leaderboards/:category/:id', (req, res) => {
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const mode=req.params.category+'/'+req.params.id;
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if((typeof mode)!='string' || !validMode(mode)) return res.status(400).json({
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ok: false,
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err: 'Invalid mode'
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});
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const username=req.body.username;
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if((typeof username)!='string' || username.length>100) return res.status(400).json({
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ok: false,
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err: 'Invalid username'
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});
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const score=req.body.score;
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if((typeof score)!='number' || score%1 || score<0) return res.status(400).json({
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ok: false,
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err: 'Invalid score'
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});
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const length=req.body.length;
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if((typeof length)!='number' || length%1 || length<1) return res.status(400).json({
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ok: false,
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err: 'Invalid length'
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});
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const time=req.body.time;
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if((typeof time)!='number' || time%1 || time<0) return res.status(400).json({
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ok: false,
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err: 'Invalid time'
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});
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const speed=req.body.speed;
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if((typeof speed)!='number' || speed%1 || speed<1) return res.status(400).json({
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ok: false,
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err: 'Invalid speed'
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});
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try {
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addLeaderboard.run({
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mode, username,
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score, length,
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time, speed
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});
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res.json({
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ok: true
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});
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} catch(e) {
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res.status(500).json({
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ok: false,
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err: 'Failed to add score'
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});
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}
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});
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return module.exports=exports=api;
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