diff --git a/public/index.html b/public/index.html
index 1a4f083..ef147fb 100644
--- a/public/index.html
+++ b/public/index.html
@@ -383,7 +383,12 @@
const params = new URLSearchParams(window.location.search);
let roomId = params.get("room");
let isLocal = params.get("mode") === "local";
- let ws, myRole, state, selected = null;
+
+ // --- STATE & HISTORY ---
+ let ws, myRole, selected = null;
+ let state = null; // Authoritative latest state
+ let history = []; // Array of state snapshots
+ let historyIndex = -1; // Current view index
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]];
@@ -391,12 +396,25 @@
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 initLocalState() {
- state = { wolf: 5, sheep: [0, 1, 3], turn: "sheep", moveCount: 0, winner: null, lastMove: null };
+ const startState = { wolf: 5, sheep: [0, 1, 3], turn: "sheep", moveCount: 0, winner: null, lastMove: null };
+ history = [];
+ updateHistory(startState);
document.getElementById("lobby").classList.add("hidden");
document.getElementById("game").classList.remove("hidden");
document.getElementById("roomInfo").style.visibility = "hidden";
document.getElementById("copyBtn").disabled = true;
document.getElementById("copyBtn").style.opacity = "0.5";
+ }
+
+ function updateHistory(newState) {
+ // If it's a reset (moveCount 0) or a new move, add to history
+ if (newState.moveCount === 0) {
+ history = [JSON.parse(JSON.stringify(newState))];
+ } else if (!state || newState.moveCount > state.moveCount) {
+ history.push(JSON.parse(JSON.stringify(newState)));
+ }
+ state = newState;
+ historyIndex = history.length - 1; // Snap to newest
render();
}
@@ -417,21 +435,40 @@
document.getElementById("game").classList.remove("hidden");
}
if (msg.type === "state") {
- state = msg.game; myRole = msg.yourRole;
+ myRole = msg.yourRole;
document.getElementById("overlay").className = msg.onlineCount < 2 ? "" : "hidden";
- render();
+ updateHistory(msg.game);
}
};
}
+ // Keyboard controls for back/forward
+ window.addEventListener("keydown", (e) => {
+ if (e.key === "ArrowLeft" && historyIndex > 0) {
+ historyIndex--;
+ render();
+ } else if (e.key === "ArrowRight" && historyIndex < history.length - 1) {
+ historyIndex++;
+ render();
+ }
+ });
+
function handleLocalMove(from, to) {
- const allowed = (state.turn === "wolf") ? bWolf[from] : bSheep[from];
- if (!allowed?.includes(to) || state.sheep.includes(to) || state.wolf === to) return;
- if (state.turn === "wolf") { state.wolf = to; state.turn = "sheep"; }
- else { state.sheep[state.sheep.indexOf(from)] = to; state.turn = "wolf"; }
- state.moveCount++;
- state.winner = checkWinConditions(state);
- render();
+ // If moving while viewing history, we branch off
+ const baseState = history[historyIndex];
+ const allowed = (baseState.turn === "wolf") ? bWolf[from] : bSheep[from];
+ if (!allowed?.includes(to) || baseState.sheep.includes(to) || baseState.wolf === to) return;
+
+ const nextState = JSON.parse(JSON.stringify(baseState));
+ if (nextState.turn === "wolf") { nextState.wolf = to; nextState.turn = "sheep"; }
+ else { nextState.sheep[nextState.sheep.indexOf(from)] = to; nextState.turn = "wolf"; }
+
+ nextState.moveCount++;
+ nextState.winner = checkWinConditions(nextState);
+
+ // Truncate history if we were looking at the past
+ history = history.slice(0, historyIndex + 1);
+ updateHistory(nextState);
}
function checkWinConditions(g) {
@@ -442,6 +479,86 @@
return null;
}
+ function render() {
+ const viewState = history[historyIndex];
+ if (!viewState) return;
+
+ const isViewingHistory = historyIndex < history.length - 1;
+ const svg = document.querySelector("svg");
+ svg.innerHTML = "";
+
+ edges.forEach(([a, b]) => {
+ const l = document.createElementNS("http://www.w3.org/2000/svg", "line");
+ l.setAttribute("x1", pos[a][0]); l.setAttribute("y1", pos[a][1]);
+ l.setAttribute("x2", pos[b][0]); l.setAttribute("y2", pos[b][1]);
+ l.setAttribute("class", "edge"); svg.appendChild(l);
+ });
+
+ const effectiveRole = isLocal ? viewState.turn : myRole;
+ const badge = document.getElementById("idBadge");
+ badge.innerText = effectiveRole === "wolf" ? "WOLF" : "SCHAFE";
+ badge.className = `id-box is-${effectiveRole}`;
+
+ const statusEl = document.getElementById("status");
+ const banner = document.getElementById("victory-banner");
+ const restartBtn = document.getElementById("restartBtn");
+
+ if (viewState.winner) {
+ banner.classList.remove("hidden");
+ const winMsg = viewState.winner === "wolf" ? "WOLF GEWINNT!" : "SCHAFE GEWINNEN!";
+ document.getElementById("winner-text").innerText = winMsg;
+ document.getElementById("winner-text").style.color = viewState.winner === "wolf" ? "var(--wolf)" : "var(--sheep)";
+ statusEl.innerHTML = "ENDE";
+ restartBtn.classList.add("restart-pulse");
+ } else {
+ banner.classList.add("hidden");
+ restartBtn.classList.remove("restart-pulse");
+ let label = (isLocal || viewState.turn === myRole) ? 'DEIN ZUG' : 'WARTEN...';
+ if (isViewingHistory) label = "HISTORIE";
+ statusEl.innerHTML = `${label}
ZUG ${viewState.moveCount}/40`;
+ }
+
+ for (let i = 0; i <= 10; i++) {
+ const [x, y] = pos[i];
+ const isWolf = viewState.wolf === i;
+ const isSheep = viewState.sheep.includes(i);
+ const type = isWolf ? "wolf" : (isSheep ? "sheep" : "empty");
+ const isWinnerPiece = (viewState.winner === "wolf" && isWolf) || (viewState.winner === "sheep" && isSheep);
+
+ // Logic for possible moves
+ const canInteract = isLocal || (!isViewingHistory && state.turn === myRole);
+ const isPossible = canInteract && selected !== null && (viewState.turn === "wolf" ? bWolf[selected] : bSheep[selected]).includes(i) && !isWolf && !isSheep;
+
+ const g = document.createElementNS("http://www.w3.org/2000/svg", "g");
+ g.onclick = () => {
+ if (viewState.winner || (!isLocal && isViewingHistory)) return;
+ if (!isLocal && state.turn !== myRole) return;
+
+ const isMine = (viewState.turn === "wolf" && isWolf) || (viewState.turn === "sheep" && isSheep);
+ if (isMine) selected = i;
+ else if (isPossible) {
+ if (isLocal) handleLocalMove(selected, i);
+ else ws.send(JSON.stringify({ from: selected, to: i }));
+ selected = null;
+ } else selected = null;
+ render();
+ };
+
+ 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("class", `node-circle ${type} ${selected === i ? 'selected' : ''} ${isPossible ? 'possible' : ''} ${isWinnerPiece ? 'winner-glow' : ''}`);
+ if (isViewingHistory) c.style.strokeDasharray = "4";
+ g.appendChild(c);
+
+ const t = document.createElementNS("http://www.w3.org/2000/svg", "text");
+ t.setAttribute("x", x); t.setAttribute("y", y + 6); t.setAttribute("text-anchor", "middle");
+ t.setAttribute("style", "pointer-events:none; font-weight:900; font-family:sans-serif; font-size: 18px;");
+ t.setAttribute("fill", (type === "empty") ? "#000" : "#fff");
+ t.textContent = i; g.appendChild(t);
+ svg.appendChild(g);
+ }
+ }
+
function updateRoomList(rooms) {
const list = document.getElementById("roomList");
if (!list) return;
@@ -463,79 +580,16 @@
else ws.send(JSON.stringify({ type: 'restart' }));
};
- function render() {
- const svg = document.querySelector("svg");
- svg.innerHTML = "";
- edges.forEach(([a, b]) => {
- const l = document.createElementNS("http://www.w3.org/2000/svg", "line");
- l.setAttribute("x1", pos[a][0]); l.setAttribute("y1", pos[a][1]);
- l.setAttribute("x2", pos[b][0]); l.setAttribute("y2", pos[b][1]);
- l.setAttribute("class", "edge"); svg.appendChild(l);
- });
-
- const effectiveRole = isLocal ? state.turn : myRole;
- const badge = document.getElementById("idBadge");
- badge.innerText = effectiveRole === "wolf" ? "WOLF" : "SCHAFE";
- badge.className = `id-box is-${effectiveRole}`;
-
- const statusEl = document.getElementById("status");
- const banner = document.getElementById("victory-banner");
- const restartBtn = document.getElementById("restartBtn");
-
- if (state.winner) {
- banner.classList.remove("hidden");
- const winMsg = state.winner === "wolf" ? "WOLF GEWINNT!" : "SCHAFE GEWINNEN!";
- document.getElementById("winner-text").innerText = winMsg;
- document.getElementById("winner-text").style.color = state.winner === "wolf" ? "var(--wolf)" : "var(--sheep)";
- statusEl.innerHTML = "ENDE";
- restartBtn.classList.add("restart-pulse");
- } else {
- banner.classList.add("hidden");
- restartBtn.classList.remove("restart-pulse");
- statusEl.innerHTML = `${(isLocal || state.turn === myRole) ? 'DEIN ZUG' : 'WARTEN...'}
ZUG ${state.moveCount}/40`;
- }
-
- for (let i = 0; i <= 10; i++) {
- const [x, y] = pos[i];
- const isWolf = state.wolf === i;
- const isSheep = state.sheep.includes(i);
- const type = isWolf ? "wolf" : (isSheep ? "sheep" : "empty");
- const isWinnerPiece = (state.winner === "wolf" && isWolf) || (state.winner === "sheep" && isSheep);
- const isPossible = selected !== null && (effectiveRole === "wolf" ? bWolf[selected] : bSheep[selected]).includes(i) && !isWolf && !isSheep;
-
- const g = document.createElementNS("http://www.w3.org/2000/svg", "g");
- g.onclick = () => {
- if (!isLocal && (state.turn !== myRole || state.winner)) return;
- if (isLocal && state.winner) return;
- const isMine = (effectiveRole === "wolf" && isWolf) || (effectiveRole === "sheep" && isSheep);
- if (isMine) selected = i;
- else if (isPossible) {
- if (isLocal) handleLocalMove(selected, i);
- else ws.send(JSON.stringify({ from: selected, to: i }));
- selected = null;
- } else selected = null;
- render();
- };
-
- 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("class", `node-circle ${type} ${selected === i ? 'selected' : ''} ${isPossible ? 'possible' : ''} ${isWinnerPiece ? 'winner-glow' : ''}`);
- g.appendChild(c);
-
- const t = document.createElementNS("http://www.w3.org/2000/svg", "text");
- t.setAttribute("x", x); t.setAttribute("y", y + 6); t.setAttribute("text-anchor", "middle");
- t.setAttribute("style", "pointer-events:none; font-weight:900; font-family:sans-serif; font-size: 18px;");
- t.setAttribute("fill", (type === "empty") ? "#000" : "#fff");
- t.textContent = i; g.appendChild(t);
- svg.appendChild(g);
- }
- }
-
document.getElementById("copyBtn").onclick = async () => {
const url = window.location.origin + window.location.pathname + `?room=${roomId}`;
try { await navigator.clipboard.writeText(url); showToast(); } catch (err) { }
};
- function showToast() { const t = document.getElementById("toast"); t.className = "show"; setTimeout(() => { t.className = ""; }, 3000); }
+
+ function showToast() {
+ const t = document.getElementById("toast");
+ t.className = "show";
+ setTimeout(() => { t.className = ""; }, 3000);
+ }
connect();