GrandTabernacleAutoVI/server/server.js
2023-12-07 11:20:48 +01:00

177 lines
No EOL
3.9 KiB
JavaScript

const express = require('express');
const http = require('http');
const WebSocket = require('ws');
const url = require('url');
const objectsModule = require('./objects');
const app = express();
const server = http.createServer(app);
const wss = new WebSocket.Server({
server
});
const connections = new Set();
var playerCount = 0;
var players = []
const NAME_MAXLEN = 25;
app.get('/', (req, res) => {
res.send('Grand Tabernacle Auto VI');
});
function norm(x1, x2, y1, y2) {
return Math.sqrt((x1 - x2) ** 2 + (y1 + y2) ** 2);
}
function circleCollide(x, y) {
let colliding = false;
objectsModule.objects.circles.forEach((circle) => {
if (norm(x, circle.x, y, circle.y) <= circle.r) {
colliding = true;
}
})
return colliding;
}
function squareCollide(x, y) {
let colliding = false;
objectsModule.objects.squares.forEach((square) => {
if (square.x <= x && x <= square.x + square.w && square.y <= y && y <= square.y + square.h) {
colliding = true;
}
})
return colliding;
}
function generatePosition() {
let mapWidth = 1000;
let mapHeight = 1000;
let count = 0;
let x = Math.floor(Math.random() * mapWidth);
let y = Math.floor(Math.random() * mapHeight);
while ((circleCollide(x, y) || squareCollide(x, y))) {
x = Math.floor(Math.random() * mapWidth);
y = Math.floor(Math.random() * mapHeight);
count++;
if (count >= 1000) {
break;
}
}
return [x, y];
}
function createNewPlayer(socket, name) {
let pos = generatePosition();
var obj = {
id: playerCount,
x: pos[0],
y: pos[1],
dir: 0,
visibleDir: 0,
name: name
}
players.push(obj);
playerCount++;
socket.send(JSON.stringify({
type: "connect",
data: {
playerId: obj.id,
players: players
}
}))
broadcast(JSON.stringify({
type: "newplayer",
data: obj
}), obj.id);
socket.id = obj.id;
connections.add(socket);
}
wss.on('connection', (socket, req) => {
//create new player, send informations to new player and broadcast new player for all
let username = url.parse(req.url, true).query.name;
if (username === undefined || username == null || username == "null") {
username = "Soldat Inconnu"
}
if (username.length > NAME_MAXLEN) {
username = username.substring(0, NAME_MAXLEN);
}
createNewPlayer(socket, username);
socket.on('message', (message) => {
message = JSON.parse(message);
switch (message.type) {
case 'ping':
socket.send("pong");
break;
case "update":
for (var i = players.length - 1; i >= 0; i--) {
if (players[i].id == message.data.id) {
players[i] = message.data;
}
}
broadcast(JSON.stringify(message), socket.id);
break;
case "newBullet":
broadcast(JSON.stringify(message), socket.id);
break;
case "died":
broadcast(JSON.stringify(message), socket.id);
for (var i = players.length - 1; i >= 0; i--) {
if (players[i].id == message.data.id) {
let pos = generatePosition();
players[i].x = pos[0];
players[i].y = pos[1];
broadcast(JSON.stringify({
type: "update",
data: players[i]
}))
}
}
break;
default:
break;
}
});
socket.on('close', () => {
for (var i = players.length - 1; i >= 0; i--) {
broadcast(JSON.stringify({
type: "removePlayer",
data: {
id: socket.id
}
}));
if (players[i].id == socket.id) {
players.splice(i, 1);
}
}
connections.delete(socket);
});
});
function broadcast(message, exceptId = -1) {
connections.forEach((socket) => {
if (socket.readyState === WebSocket.OPEN && socket.id != exceptId) {
socket.send(message);
}
});
}
const PORT = 8080;
server.listen(PORT, () => {
console.log(`Serveur WebSocket écoutant sur le port ${PORT}`);
});