From 5e8fad02b06c66cb67be50c06bc9d25d8a120727 Mon Sep 17 00:00:00 2001
From: Simon Oberzier <simon.oberzier@outlook.de>
Date: Tue, 10 Feb 2026 08:01:39 +0100
Subject: [PATCH] Single player mode

---
 public/index.html | 107 ++++++++++++++++++++++++++++++++--------------
 1 file changed, 75 insertions(+), 32 deletions(-)

diff --git a/public/index.html b/public/index.html
index 877d26b..c30395b 100644
--- a/public/index.html
+++ b/public/index.html
@@ -272,7 +272,10 @@
     <div id="lobby" class="main-card">
         <h1 style="text-align: center; margin: 0; border-bottom: 4px solid var(--black); padding-bottom: 10px;">WOLF &
             SCHAFE</h1>
-        <button class="btn btn-green" style="font-size: 1.1rem;" onclick="createRoom()">+ NEUES SPIEL</button>
+        <div style="display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 10px;">
+            <button class="btn btn-green" onclick="createRoom()">+ ONLINE</button>
+            <button class="btn" onclick="startLocal()">+ LOKAL</button>
+        </div>
         <h3 style="margin: 15px 0 5px 0;">Offene Räume:</h3>
         <div id="roomList">Suche Räume...</div>
     </div>
@@ -280,7 +283,7 @@
     <div id="game" class="main-card hidden">
         <div class="info-bar">
             <div>
-                <div style="font-size: 0.7rem; font-weight: 900; display: flex; align-items: center;">
+                <div id="roomInfo" style="font-size: 0.7rem; font-weight: 900; display: flex; align-items: center;">
                     <span id="dot" class="conn-dot"></span> RAUM: <span id="roomCode">...</span>
                 </div>
                 <div id="idBadge" class="id-box">...</div>
@@ -298,7 +301,7 @@
 
         <div class="controls">
             <button class="btn" id="copyBtn">Link Kopieren</button>
-            <button class="btn" onclick="ws.send(JSON.stringify({type:'restart'}))">Restart</button>
+            <button class="btn" id="restartBtn">Restart</button>
             <button class="btn" onclick="location.href='/'">Lobby</button>
         </div>
     </div>
@@ -311,6 +314,7 @@
 
         const params = new URLSearchParams(window.location.search);
         let roomId = params.get("room");
+        let isLocal = params.get("mode") === "local";
         let ws, myRole, state, 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] };
@@ -318,13 +322,24 @@
         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: [] };
 
+        function initLocalState() {
+            state = { wolf: 5, sheep: [0, 1, 3], turn: "sheep", moveCount: 0, winner: null, lastMove: null };
+            myRole = "sheep"; // Initial role, will toggle
+            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";
+            render();
+        }
+
         function connect() {
+            if (isLocal) return initLocalState();
+
             const protocol = location.protocol === "https:" ? "wss" : "ws";
             ws = new WebSocket(`${protocol}://${location.host}?room=${roomId}&sessionId=${sessionId}`);
 
             ws.onopen = () => document.getElementById("dot").classList.add("conn-online");
-            ws.onclose = () => document.getElementById("dot").classList.remove("conn-online");
-
             ws.onmessage = e => {
                 const msg = JSON.parse(e.data);
                 if (msg.type === "room_list") updateRoomList(msg.rooms);
@@ -343,8 +358,30 @@
             };
         }
 
+        // Logic for local movement
+        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();
+        }
+
+        function checkWinConditions(g) {
+            if (g.wolf === 0) return "wolf";
+            if (g.moveCount >= 40) return "wolf";
+            const canWolfMove = bWolf[g.wolf].some(to => !g.sheep.includes(to));
+            if (!canWolfMove) return "sheep";
+            return null;
+        }
+
         function updateRoomList(rooms) {
             const list = document.getElementById("roomList");
+            if (!list) return;
             list.innerHTML = rooms.length === 0 ? "<p style='text-align:center'>Keine aktiven Räume.</p>" : "";
             rooms.forEach(r => {
                 const div = document.createElement("div");
@@ -360,26 +397,13 @@
             window.location.search = `?room=${id}`;
         }
 
-        function showToast() {
-            const toast = document.getElementById("toast");
-            toast.className = "show";
-            setTimeout(() => { toast.className = ""; }, 3000);
+        function startLocal() {
+            window.location.search = `?mode=local`;
         }
 
-        document.getElementById("copyBtn").onclick = async () => {
-            const url = window.location.href;
-            try {
-                await navigator.clipboard.writeText(url);
-                showToast();
-            } catch (err) {
-                const t = document.createElement("textarea");
-                t.value = url;
-                document.body.appendChild(t);
-                t.select();
-                document.execCommand('copy');
-                document.body.removeChild(t);
-                showToast();
-            }
+        document.getElementById("restartBtn").onclick = () => {
+            if (isLocal) initLocalState();
+            else ws.send(JSON.stringify({ type: 'restart' }));
         };
 
         function render() {
@@ -392,28 +416,39 @@
                 l.setAttribute("class", "edge"); svg.appendChild(l);
             });
 
+            // In local mode, "your role" is always the current turn's role
+            const effectiveRole = isLocal ? state.turn : myRole;
+
             const badge = document.getElementById("idBadge");
-            badge.innerText = myRole === "wolf" ? "WOLF" : "SCHAFE";
-            badge.className = `id-box is-${myRole}`;
+            badge.innerText = effectiveRole === "wolf" ? "WOLF" : "SCHAFE";
+            badge.className = `id-box is-${effectiveRole}`;
 
             const statusEl = document.getElementById("status");
             if (state.winner) statusEl.innerHTML = `SIEG: ${state.winner.toUpperCase()}!`;
-            else statusEl.innerHTML = `${state.turn === myRole ? 'DEIN ZUG' : 'WARTEN...'}<br><small>ZUG ${state.moveCount}/40</small>`;
+            else statusEl.innerHTML = `${(isLocal || state.turn === myRole) ? 'DEIN ZUG' : 'WARTEN...'}<br><small>ZUG ${state.moveCount}/40</small>`;
 
             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 isPossible = selected !== null && (myRole === "wolf" ? bWolf[selected] : bSheep[selected]).includes(i) && !isWolf && !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 (state.turn !== myRole || state.winner) return;
-                    const isMine = (myRole === "wolf" && isWolf) || (myRole === "sheep" && isSheep);
-                    if (isMine) selected = i;
-                    else if (isPossible) { ws.send(JSON.stringify({ from: selected, to: i })); selected = null; }
-                    else selected = null;
+                    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();
                 };
 
@@ -430,6 +465,14 @@
                 svg.appendChild(g);
             }
         }
+
+        // Copy logic
+        document.getElementById("copyBtn").onclick = async () => {
+            const url = window.location.href.split('&')[0].split('?')[0] + `?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); }
+
         connect();
     </script>
 </body>