Files
WolfSheepGame/server.js
2026-02-09 22:34:11 +01:00

110 lines
3.9 KiB
JavaScript

const express = require("express");
const http = require("http");
const WebSocket = require("ws");
const { randomBytes } = require("crypto");
const app = express();
app.use(express.static("public"));
const server = http.createServer(app);
const wss = new WebSocket.Server({ server });
const board_wolf = { 0: [1, 2, 3], 1: [0, 2, 4, 5], 2: [0, 1, 3, 5], 3: [0, 2, 5, 6], 4: [1, 5, 7], 5: [1, 2, 3, 4, 6, 7, 8, 9], 6: [3, 5, 9], 7: [4, 5, 8, 10], 8: [5, 7, 9, 10], 9: [5, 6, 8, 10], 10: [7, 8, 9] };
const board_sheep = { 0: [1, 2, 3], 1: [2, 4, 5], 2: [1, 3, 5], 3: [2, 5, 6], 4: [5, 7], 5: [4, 6, 7, 8, 9], 6: [5, 9], 7: [8, 10], 8: [7, 9, 10], 9: [8, 10], 10: [] };
const rooms = {};
function broadcast(roomId) {
const room = rooms[roomId];
if (!room) return;
room.players.forEach(p => {
if (p.ws && p.ws.readyState === WebSocket.OPEN) {
p.ws.send(JSON.stringify({
type: "state",
game: room.game,
yourRole: p.role
}));
}
});
}
wss.on("connection", (ws, req) => {
const urlParams = new URLSearchParams(req.url.split('?')[1]);
let roomId = urlParams.get("room");
let sessionId = urlParams.get("sessionId");
if (!roomId || !rooms[roomId]) {
if (!roomId) roomId = randomBytes(3).toString("hex");
rooms[roomId] = {
game: { wolf: 5, sheep: [0, 1, 3], turn: "sheep", moveCount: 0, winner: null },
players: [],
nextFirstRole: "sheep" // Tracks who should be sheep next game
};
}
const room = rooms[roomId];
let player = room.players.find(p => p.sessionId === sessionId);
if (!player && room.players.length >= 2) {
ws.send(JSON.stringify({ type: "full" }));
ws.close();
return;
}
if (player) {
player.ws = ws;
} else {
// Assign role based on who is already there
const role = room.players.length === 0 ? room.nextFirstRole : (room.nextFirstRole === "sheep" ? "wolf" : "sheep");
player = { ws, role, sessionId };
room.players.push(player);
}
ws.send(JSON.stringify({ type: "init", role: player.role, roomId }));
broadcast(roomId);
ws.on("message", msg => {
let data = JSON.parse(msg);
if (data.type === "restart") {
// Swap roles for the next round
room.players.forEach(p => p.role = (p.role === "wolf" ? "sheep" : "wolf"));
room.game = { wolf: 5, sheep: [0, 1, 3], turn: "sheep", moveCount: 0, winner: null };
broadcast(roomId);
} else if (data.type === "leave") {
room.players = room.players.filter(p => p.sessionId !== sessionId);
if (room.players.length === 0) delete rooms[roomId];
} else {
handleMove(roomId, player.role, data);
}
});
});
// Reuse the handleMove and checkWinConditions from previous scripts...
function checkWinConditions(game) {
if (game.wolf === 0) return "wolf";
if (game.moveCount >= 40) return "wolf";
const canWolfMove = board_wolf[game.wolf].some(to => !game.sheep.includes(to));
const canSheepMove = game.sheep.some(from => board_sheep[from].some(to => to !== game.wolf && !game.sheep.includes(to)));
if (!canWolfMove) return "sheep";
if (!canSheepMove && game.turn === "sheep") return "wolf";
return null;
}
function handleMove(roomId, role, { from, to }) {
const room = rooms[roomId];
if (!room || room.game.winner || room.game.turn !== role) return;
const game = room.game;
const allowed = (role === "wolf") ? board_wolf[from] : board_sheep[from];
if (!allowed?.includes(to) || game.sheep.includes(to) || game.wolf === to) return;
if (role === "wolf") { game.wolf = to; game.turn = "sheep"; }
else { game.sheep[game.sheep.indexOf(from)] = to; game.turn = "wolf"; }
game.moveCount++;
game.winner = checkWinConditions(game);
broadcast(roomId);
}
server.listen(3030);