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Heartbeat server

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This commit is contained in:
Simon Oberzier
2026-02-09 23:06:15 +01:00
parent dec8fa1710
commit bd9db87ccb
2 changed files with 107 additions and 78 deletions
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109
public/index.html
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@@ -14,6 +14,7 @@
--sheep-light: #7db0cf; --sheep-light: #7db0cf;
--black: #1d3557; --black: #1d3557;
--white: #ffffff; --white: #ffffff;
--green: #10b981;
} }
body { body {
@@ -55,6 +56,12 @@
gap: 10px; gap: 10px;
} }
.room-info {
display: flex;
align-items: center;
gap: 10px;
}
.room-tag { .room-tag {
font-size: 0.8rem; font-size: 0.8rem;
font-weight: bold; font-weight: bold;
@@ -64,6 +71,26 @@
text-transform: uppercase; text-transform: uppercase;
} }
/* Connection Indicator */
.pulse {
width: 10px;
height: 10px;
border-radius: 50%;
background: #94a3b8;
display: inline-block;
transition: background 0.3s;
}
.online {
background: var(--green);
box-shadow: 0 0 8px var(--green);
}
.offline {
background: var(--wolf);
box-shadow: 0 0 8px var(--wolf);
}
.id-box { .id-box {
font-size: 1.2rem; font-size: 1.2rem;
font-weight: 900; font-weight: 900;
@@ -87,7 +114,6 @@
aspect-ratio: 600 / 420; aspect-ratio: 600 / 420;
border: 3px solid var(--black); border: 3px solid var(--black);
background: #fff; background: #fff;
position: relative;
touch-action: manipulation; touch-action: manipulation;
} }
@@ -106,13 +132,13 @@
stroke: var(--black); stroke: var(--black);
stroke-width: 2.5; stroke-width: 2.5;
transition: all 0.15s ease; transition: all 0.15s ease;
cursor: pointer;
} }
.empty { .empty {
fill: #fff; fill: #fff;
} }
/* Piece Colors */
.sheep { .sheep {
fill: var(--sheep); fill: var(--sheep);
} }
@@ -121,7 +147,6 @@
fill: var(--wolf); fill: var(--wolf);
} }
/* Subtle Select: Lightens the fill and adds a clean 4px border */
.wolf.selected { .wolf.selected {
fill: var(--wolf-light); fill: var(--wolf-light);
stroke-width: 4; stroke-width: 4;
@@ -134,7 +159,7 @@
.possible { .possible {
fill: #fff; fill: #fff;
stroke: #10b981; stroke: var(--green);
stroke-width: 3; stroke-width: 3;
stroke-dasharray: 4; stroke-dasharray: 4;
} }
@@ -176,8 +201,6 @@
@media (max-width: 600px) { @media (max-width: 600px) {
.main-card { .main-card {
padding: 10px; padding: 10px;
box-shadow: 4px 4px 0px var(--black);
gap: 10px;
} }
.info-bar { .info-bar {
@@ -193,10 +216,6 @@
.controls { .controls {
grid-template-columns: 1fr; grid-template-columns: 1fr;
} }
.id-box {
font-size: 1rem;
}
} }
</style> </style>
</head> </head>
@@ -205,17 +224,16 @@
<div class="game-wrapper"> <div class="game-wrapper">
<div class="main-card"> <div class="main-card">
<div class="info-bar"> <div class="info-bar">
<div class="room-info">
<div> <div>
<div class="room-tag">RAUM: <span id="codeDisplay">...</span></div> <div class="room-tag">RAUM: <span id="codeDisplay">...</span> <span id="connCircle"
class="pulse"></span></div>
<div id="idBadge" class="id-box">...</div> <div id="idBadge" class="id-box">...</div>
</div> </div>
<div id="status" style="text-align: right; font-weight: 900; line-height: 1.2;">Laden...</div>
</div> </div>
<div id="status" style="text-align: right; font-weight: 900; line-height: 1.2;">Verbinde...</div>
<div class="board-container">
<svg viewBox="0 0 600 420" preserveAspectRatio="xMidYMid meet"></svg>
</div> </div>
<div class="board-container"><svg viewBox="0 0 600 420" preserveAspectRatio="xMidYMid meet"></svg></div>
<div class="controls"> <div class="controls">
<button id="copyRoomBtn">Link</button> <button id="copyRoomBtn">Link</button>
<button id="restartBtn">Swap & Reset</button> <button id="restartBtn">Swap & Reset</button>
@@ -227,47 +245,53 @@
<script> <script>
let sessionId = localStorage.getItem("game_session_id") || (Math.random().toString(36).substring(2)); let sessionId = localStorage.getItem("game_session_id") || (Math.random().toString(36).substring(2));
localStorage.setItem("game_session_id", sessionId); localStorage.setItem("game_session_id", sessionId);
const params = new URLSearchParams(window.location.search); const params = new URLSearchParams(window.location.search);
let roomId = params.get("room") || prompt("Raumcode (leer für neu):"); let roomId = params.get("room");
let ws, myRole, state, selected = null;
const ws = new WebSocket(`${location.protocol === "https:" ? "wss" : "ws"}://${location.host}?room=${roomId}&sessionId=${sessionId}`);
const svg = document.querySelector("svg");
let myRole = null, state = null, selected = null;
const pos = { 0: [80, 210], 1: [180, 110], 2: [180, 210], 3: [180, 310], 4: [280, 110], 5: [280, 210], 6: [280, 310], 7: [380, 110], 8: [380, 210], 9: [380, 310], 10: [480, 210] }; const pos = { 0: [80, 210], 1: [180, 110], 2: [180, 210], 3: [180, 310], 4: [280, 110], 5: [280, 210], 6: [280, 310], 7: [380, 110], 8: [380, 210], 9: [380, 310], 10: [480, 210] };
const edges = [[0, 1], [0, 2], [0, 3], [1, 2], [2, 3], [1, 4], [2, 5], [3, 6], [4, 5], [5, 6], [4, 7], [5, 8], [6, 9], [7, 8], [8, 9], [5, 1], [5, 3], [5, 7], [5, 9], [7, 10], [8, 10], [9, 10]]; const edges = [[0, 1], [0, 2], [0, 3], [1, 2], [2, 3], [1, 4], [2, 5], [3, 6], [4, 5], [5, 6], [4, 7], [5, 8], [6, 9], [7, 8], [8, 9], [5, 1], [5, 3], [5, 7], [5, 9], [7, 10], [8, 10], [9, 10]];
const bWolf = { 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 bWolf = { 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 bSheep = { 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 bSheep = { 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: [] };
function connect() {
const protocol = location.protocol === "https:" ? "wss" : "ws";
ws = new WebSocket(`${protocol}://${location.host}?room=${roomId}&sessionId=${sessionId}`);
ws.onopen = () => {
document.getElementById("connCircle").className = "pulse online";
};
ws.onmessage = e => { ws.onmessage = e => {
const msg = JSON.parse(e.data); const msg = JSON.parse(e.data);
if (msg.type === "init") { if (msg.type === "init") {
document.getElementById("codeDisplay").innerText = msg.roomId; roomId = msg.roomId;
if (!params.has("room")) window.history.replaceState({}, '', `?room=${msg.roomId}`); document.getElementById("codeDisplay").innerText = roomId;
window.history.replaceState({}, '', `?room=${roomId}`);
} }
if (msg.type === "state") { if (msg.type === "state") {
state = msg.game; state = msg.game; myRole = msg.yourRole;
myRole = msg.yourRole; updateUI(); render();
updateUI();
render();
} }
}; };
ws.onclose = () => {
document.getElementById("connCircle").className = "pulse offline";
setTimeout(connect, 2000);
};
}
function updateUI() { function updateUI() {
const badge = document.getElementById("idBadge"); const badge = document.getElementById("idBadge");
badge.innerText = myRole === "wolf" ? "WOLF" : "SCHAFE"; badge.innerText = myRole === "wolf" ? "WOLF" : "SCHAFE";
badge.className = `id-box is-${myRole}`; badge.className = `id-box is-${myRole}`;
const statusEl = document.getElementById("status"); const statusEl = document.getElementById("status");
if (state.winner) { if (state.winner) statusEl.innerHTML = `SIEG: ${state.winner.toUpperCase()}!`;
statusEl.innerHTML = `SIEG: ${state.winner === 'wolf' ? 'WOLF' : 'SCHAFE'}`; else statusEl.innerHTML = `${state.turn === myRole ? 'DEIN ZUG' : 'WARTEN...'}<br><small>ZUG ${state.moveCount}/40</small>`;
} else {
statusEl.innerHTML = `${state.turn === myRole ? 'DEIN ZUG' : 'Gegner...'}<br><small>ZUG ${state.moveCount}/40</small>`;
}
} }
function render() { function render() {
const svg = document.querySelector("svg");
svg.innerHTML = ""; svg.innerHTML = "";
edges.forEach(([a, b]) => { edges.forEach(([a, b]) => {
const l = document.createElementNS("http://www.w3.org/2000/svg", "line"); const l = document.createElementNS("http://www.w3.org/2000/svg", "line");
@@ -280,34 +304,31 @@
const [x, y] = pos[i]; const [x, y] = pos[i];
let type = state.wolf === i ? "wolf" : (state.sheep.includes(i) ? "sheep" : "empty"); let type = state.wolf === i ? "wolf" : (state.sheep.includes(i) ? "sheep" : "empty");
const isPossible = selected !== null && (myRole === "wolf" ? bWolf[selected] : bSheep[selected]).includes(i) && state.wolf !== i && !state.sheep.includes(i); const isPossible = selected !== null && (myRole === "wolf" ? bWolf[selected] : bSheep[selected]).includes(i) && state.wolf !== i && !state.sheep.includes(i);
const g = document.createElementNS("http://www.w3.org/2000/svg", "g"); const g = document.createElementNS("http://www.w3.org/2000/svg", "g");
g.onclick = () => { g.onclick = () => {
if (state.turn !== myRole || state.winner) return; if (state.turn !== myRole || state.winner) return;
const isMine = (myRole === "wolf" && state.wolf === i) || (myRole === "sheep" && state.sheep.includes(i)); const isMine = (myRole === "wolf" && state.wolf === i) || (myRole === "sheep" && state.sheep.includes(i));
if (selected === null) { if (isMine) selected = i; } if (selected === null) { if (isMine) selected = i; }
else { if (isMine) selected = (selected === i ? null : i); else { ws.send(JSON.stringify({ from: selected, to: i })); selected = null; } } else { if (isMine) selected = (selected === i ? null : i); else { if (ws.readyState === 1) ws.send(JSON.stringify({ from: selected, to: i })); selected = null; } }
render(); render();
}; };
const c = document.createElementNS("http://www.w3.org/2000/svg", "circle"); const c = document.createElementNS("http://www.w3.org/2000/svg", "circle");
c.setAttribute("cx", x); c.setAttribute("cy", y); c.setAttribute("r", 25); c.setAttribute("cx", x); c.setAttribute("cy", y); c.setAttribute("r", 25);
c.setAttribute("class", `node-circle ${type} ${selected === i ? 'selected' : ''} ${isPossible ? 'possible' : ''}`); c.setAttribute("class", `node-circle ${type} ${selected === i ? 'selected' : ''} ${isPossible ? 'possible' : ''}`);
g.appendChild(c); g.appendChild(c);
const t = document.createElementNS("http://www.w3.org/2000/svg", "text"); const t = document.createElementNS("http://www.w3.org/2000/svg", "text");
t.setAttribute("x", x); t.setAttribute("y", y + 5); t.setAttribute("x", x); t.setAttribute("y", y + 5); t.setAttribute("text-anchor", "middle");
t.setAttribute("text-anchor", "middle"); t.setAttribute("class", "node-label"); t.setAttribute("fill", (type === "empty" ? "black" : "white"));
t.setAttribute("class", "node-label");
t.setAttribute("fill", (type === "empty" ? "black" : "white"));
t.textContent = i; g.appendChild(t); t.textContent = i; g.appendChild(t);
svg.appendChild(g); svg.appendChild(g);
} }
} }
document.getElementById("restartBtn").onclick = () => { selected = null; ws.send(JSON.stringify({ type: "restart" })); }; document.getElementById("restartBtn").onclick = () => { if (ws.readyState === 1) ws.send(JSON.stringify({ type: "restart" })); };
document.getElementById("copyRoomBtn").onclick = () => { navigator.clipboard.writeText(window.location.href); alert("Kopiert!"); }; document.getElementById("copyRoomBtn").onclick = () => { navigator.clipboard.writeText(window.location.href); alert("Kopiert!"); };
document.getElementById("exitBtn").onclick = () => { if (confirm("Beenden?")) { ws.send(JSON.stringify({ type: "leave" })); window.location.href = window.location.pathname; } }; document.getElementById("exitBtn").onclick = () => { if (confirm("Beenden?")) { if (ws.readyState === 1) ws.send(JSON.stringify({ type: "leave" })); window.location.href = window.location.pathname; } };
connect();
</script> </script>
</body> </body>

56
server.js
View File

@@ -17,29 +17,36 @@ const rooms = {};
function broadcast(roomId) { function broadcast(roomId) {
const room = rooms[roomId]; const room = rooms[roomId];
if (!room) return; if (!room) return;
room.players.forEach(p => { room.players.forEach(p => {
if (p.ws && p.ws.readyState === WebSocket.OPEN) { if (p.ws && p.ws.readyState === WebSocket.OPEN) {
p.ws.send(JSON.stringify({ p.ws.send(JSON.stringify({ type: "state", game: room.game, yourRole: p.role }));
type: "state",
game: room.game,
yourRole: p.role
}));
} }
}); });
} }
// Heartbeat: Check if clients are still alive every 30s
const interval = setInterval(() => {
wss.clients.forEach(ws => {
if (ws.isAlive === false) return ws.terminate();
ws.isAlive = false;
ws.ping();
});
}, 30000);
wss.on("connection", (ws, req) => { wss.on("connection", (ws, req) => {
const urlParams = new URLSearchParams(req.url.split('?')[1]); const urlParams = new URLSearchParams(req.url.split('?')[1]);
let roomId = urlParams.get("room"); let roomId = urlParams.get("room");
let sessionId = urlParams.get("sessionId"); let sessionId = urlParams.get("sessionId");
ws.isAlive = true;
ws.on('pong', () => ws.isAlive = true);
if (!roomId || !rooms[roomId]) { if (!roomId || !rooms[roomId]) {
if (!roomId) roomId = randomBytes(3).toString("hex"); if (!roomId || roomId === "null") roomId = randomBytes(3).toString("hex");
rooms[roomId] = { rooms[roomId] = {
game: { wolf: 5, sheep: [0, 1, 3], turn: "sheep", moveCount: 0, winner: null }, game: { wolf: 5, sheep: [0, 1, 3], turn: "sheep", moveCount: 0, winner: null },
players: [], players: [],
nextFirstRole: "sheep" // Tracks who should be sheep next game nextFirstRole: "sheep"
}; };
} }
@@ -55,7 +62,6 @@ wss.on("connection", (ws, req) => {
if (player) { if (player) {
player.ws = ws; player.ws = ws;
} else { } else {
// Assign role based on who is already there
const role = room.players.length === 0 ? room.nextFirstRole : (room.nextFirstRole === "sheep" ? "wolf" : "sheep"); const role = room.players.length === 0 ? room.nextFirstRole : (room.nextFirstRole === "sheep" ? "wolf" : "sheep");
player = { ws, role, sessionId }; player = { ws, role, sessionId };
room.players.push(player); room.players.push(player);
@@ -66,31 +72,23 @@ wss.on("connection", (ws, req) => {
ws.on("message", msg => { ws.on("message", msg => {
let data = JSON.parse(msg); let data = JSON.parse(msg);
if (data.type === "restart") { if (data.type === "restart") {
// Swap roles for the next round
room.players.forEach(p => p.role = (p.role === "wolf" ? "sheep" : "wolf")); room.players.forEach(p => p.role = (p.role === "wolf" ? "sheep" : "wolf"));
room.nextFirstRole = room.nextFirstRole === "sheep" ? "wolf" : "sheep";
room.game = { wolf: 5, sheep: [0, 1, 3], turn: "sheep", moveCount: 0, winner: null }; room.game = { wolf: 5, sheep: [0, 1, 3], turn: "sheep", moveCount: 0, winner: null };
broadcast(roomId); broadcast(roomId);
} else if (data.type === "leave") { } else if (data.type === "leave") {
room.players = room.players.filter(p => p.sessionId !== sessionId); room.players = room.players.filter(p => p.sessionId !== sessionId);
if (room.players.length === 0) delete rooms[roomId]; if (room.players.length === 0) delete rooms[roomId];
} else { } else if (data.from !== undefined && data.to !== undefined) {
handleMove(roomId, player.role, data); handleMove(roomId, player.role, data);
} }
}); });
});
// Reuse the handleMove and checkWinConditions from previous scripts... ws.on("close", () => {
function checkWinConditions(game) { // We keep the player in the room for a while to allow reconnects
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 }) { function handleMove(roomId, role, { from, to }) {
const room = rooms[roomId]; const room = rooms[roomId];
@@ -107,4 +105,14 @@ function handleMove(roomId, role, { from, to }) {
broadcast(roomId); broadcast(roomId);
} }
server.listen(3030); 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;
}
server.listen(3030, () => console.log("Server running on port 3030"));