Changes

src/pages/Games.tsx

@@ -51,6 +51,20 @@ const games = [
   },
 ];
 
+const multiplayerGames = [
+  {
+    id: 'snake-2p',
+    name: 'Snake 2P',
+    description: '2 players on same keyboard - last one standing wins!',
+    ascii: `┌────────┐
+│ ●■■    │
+│        │
+│    ▓▓● │
+│        │
+└────────┘`,
+  },
+];
+
 const Games = () => {
   return (
     <motion.div
@@ -102,6 +116,37 @@ const Games = () => {
         ))}
       </div>
 
+      {/* Multiplayer Section */}
+      <div className="mt-6">
+        <h2 className="font-minecraft text-xl text-primary text-glow mb-3">
+          <GlitchText text="Multiplayer" />
+        </h2>
+        <div className="grid grid-cols-2 md:grid-cols-4 gap-3">
+          {multiplayerGames.map((game, index) => (
+            <motion.div
+              key={game.id}
+              initial={{ opacity: 0, y: 20 }}
+              animate={{ opacity: 1, y: 0 }}
+              transition={{ delay: 0.4 + index * 0.1 }}
+            >
+              <Link to={`/games/${game.id}`} className="block">
+                <div className="border border-purple-500/50 hover:border-purple-500 bg-background/50 hover:bg-purple-500/10 p-4 transition-all duration-300 group cursor-pointer">
+                  <pre className="font-mono text-sm text-purple-400/70 group-hover:text-purple-400 transition-colors mb-3 leading-tight">
+                    {game.ascii}
+                  </pre>
+                  <h2 className="font-minecraft text-xl text-purple-400 group-hover:text-glow-strong">
+                    <GlitchText text={game.name} />
+                  </h2>
+                  <p className="font-pixel text-xs text-foreground/60 mt-2">
+                    {game.description}
+                  </p>
+                </div>
+              </Link>
+            </motion.div>
+          ))}
+        </div>
+      </div>
+
       <div className="border border-primary/30 p-2 bg-background/30 mt-4">
         <p className="font-pixel text-xs text-foreground/50">
           <span className="text-primary">{'>'}</span> Max score: 4,294,967,296

src/pages/SnakeMultiplayer.tsx

@@ -0,0 +1,364 @@
+import { useState, useEffect, useCallback, useRef } from 'react';
+import { motion } from 'framer-motion';
+import { useSettings } from '@/contexts/SettingsContext';
+import { Link } from 'react-router-dom';
+import { Maximize2, Minimize2 } from 'lucide-react';
+import { useBrowserFullscreen } from '@/hooks/useGameDimensions';
+
+const GRID_SIZE = 20;
+const TICK_SPEED = 120;
+
+type Direction = 'up' | 'down' | 'left' | 'right';
+type Position = { x: number; y: number };
+
+interface Player {
+  snake: Position[];
+  direction: Direction;
+  score: number;
+  alive: boolean;
+  color: string;
+  name: string;
+}
+
+const SnakeMultiplayer = () => {
+  const { playSound } = useSettings();
+  const [players, setPlayers] = useState<[Player, Player]>([
+    { snake: [{ x: 5, y: 10 }], direction: 'right', score: 0, alive: true, color: 'hsl(var(--primary))', name: 'P1' },
+    { snake: [{ x: 15, y: 10 }], direction: 'left', score: 0, alive: true, color: 'hsl(280 70% 50%)', name: 'P2' },
+  ]);
+  const [food, setFood] = useState<Position>({ x: 10, y: 10 });
+  const [gameOver, setGameOver] = useState(false);
+  const [winner, setWinner] = useState<string | null>(null);
+  const [gameStarted, setGameStarted] = useState(false);
+  const [isPaused, setIsPaused] = useState(false);
+  const [isFullscreen, setIsFullscreen] = useState(false);
+  const gameRef = useRef<HTMLDivElement>(null);
+  
+  const directionQueues = useRef<[Direction[], Direction[]]>([[], []]);
+  const currentDirections = useRef<[Direction, Direction]>(['right', 'left']);
+
+  const { enterFullscreen, exitFullscreen } = useBrowserFullscreen();
+
+  const getCellSize = useCallback(() => {
+    if (typeof window === 'undefined') return 20;
+    const isMobile = window.innerWidth < 768;
+    if (isMobile) {
+      const maxWidth = window.innerWidth - 40;
+      const maxHeight = window.innerHeight - 300;
+      return Math.min(Math.floor(maxWidth / GRID_SIZE), Math.floor(maxHeight / GRID_SIZE), 16);
+    }
+    return isFullscreen ? 24 : 20;
+  }, [isFullscreen]);
+
+  const [cellSize, setCellSize] = useState(getCellSize);
+  const isMobile = typeof window !== 'undefined' && window.innerWidth < 768;
+
+  useEffect(() => {
+    const handleResize = () => setCellSize(getCellSize());
+    window.addEventListener('resize', handleResize);
+    return () => window.removeEventListener('resize', handleResize);
+  }, [getCellSize]);
+
+  useEffect(() => {
+    setCellSize(getCellSize());
+  }, [isFullscreen, getCellSize]);
+
+  const toggleFullscreen = async () => {
+    if (!isFullscreen) { setIsFullscreen(true); await enterFullscreen(); }
+    else { setIsFullscreen(false); await exitFullscreen(); }
+    playSound('click');
+  };
+
+  useEffect(() => {
+    const handleEscape = (e: KeyboardEvent) => {
+      if (e.key === 'Escape' && isFullscreen) { setIsFullscreen(false); exitFullscreen(); }
+    };
+    window.addEventListener('keydown', handleEscape);
+    return () => window.removeEventListener('keydown', handleEscape);
+  }, [isFullscreen, exitFullscreen]);
+
+  const spawnFood = useCallback((snakes: Position[][]): Position => {
+    const occupied = new Set(snakes.flat().map(s => `${s.x},${s.y}`));
+    const available: Position[] = [];
+    for (let x = 0; x < GRID_SIZE; x++) {
+      for (let y = 0; y < GRID_SIZE; y++) {
+        if (!occupied.has(`${x},${y}`)) available.push({ x, y });
+      }
+    }
+    if (available.length === 0) return { x: 10, y: 10 };
+    return available[Math.floor(Math.random() * available.length)];
+  }, []);
+
+  const startGame = () => {
+    const p1Start = [{ x: 5, y: 10 }];
+    const p2Start = [{ x: 15, y: 10 }];
+    setPlayers([
+      { snake: p1Start, direction: 'right', score: 0, alive: true, color: 'hsl(var(--primary))', name: 'P1' },
+      { snake: p2Start, direction: 'left', score: 0, alive: true, color: 'hsl(280 70% 50%)', name: 'P2' },
+    ]);
+    currentDirections.current = ['right', 'left'];
+    directionQueues.current = [[], []];
+    setFood(spawnFood([p1Start, p2Start]));
+    setGameOver(false);
+    setWinner(null);
+    setIsPaused(false);
+    setGameStarted(true);
+    playSound('success');
+    gameRef.current?.focus();
+  };
+
+  useEffect(() => {
+    if (!gameStarted || gameOver || isPaused) return;
+
+    const interval = setInterval(() => {
+      const opposite: Record<Direction, Direction> = { up: 'down', down: 'up', left: 'right', right: 'left' };
+      
+      setPlayers(prev => {
+        const newPlayers: [Player, Player] = [{ ...prev[0] }, { ...prev[1] }];
+        
+        for (let i = 0; i < 2; i++) {
+          if (!newPlayers[i].alive) continue;
+          
+          // Process direction queue
+          let nextDir = currentDirections.current[i];
+          while (directionQueues.current[i].length > 0) {
+            const queuedDir = directionQueues.current[i].shift()!;
+            if (queuedDir !== opposite[currentDirections.current[i]]) {
+              nextDir = queuedDir;
+              break;
+            }
+          }
+          currentDirections.current[i] = nextDir;
+          newPlayers[i].direction = nextDir;
+          
+          // Move snake
+          const head = newPlayers[i].snake[0];
+          let newHead: Position;
+          switch (nextDir) {
+            case 'up': newHead = { x: head.x, y: head.y - 1 }; break;
+            case 'down': newHead = { x: head.x, y: head.y + 1 }; break;
+            case 'left': newHead = { x: head.x - 1, y: head.y }; break;
+            case 'right': newHead = { x: head.x + 1, y: head.y }; break;
+          }
+          
+          // Check wall collision
+          if (newHead.x < 0 || newHead.x >= GRID_SIZE || newHead.y < 0 || newHead.y >= GRID_SIZE) {
+            newPlayers[i].alive = false;
+            playSound('error');
+            continue;
+          }
+          
+          // Check self collision
+          if (newPlayers[i].snake.some(s => s.x === newHead.x && s.y === newHead.y)) {
+            newPlayers[i].alive = false;
+            playSound('error');
+            continue;
+          }
+          
+          // Check collision with other snake
+          const otherIndex = i === 0 ? 1 : 0;
+          if (newPlayers[otherIndex].snake.some(s => s.x === newHead.x && s.y === newHead.y)) {
+            newPlayers[i].alive = false;
+            playSound('error');
+            continue;
+          }
+          
+          const newSnake = [newHead, ...newPlayers[i].snake];
+          
+          // Check food
+          if (newHead.x === food.x && newHead.y === food.y) {
+            playSound('success');
+            newPlayers[i].score += 10;
+            setFood(spawnFood([newPlayers[0].snake, newPlayers[1].snake]));
+          } else {
+            newSnake.pop();
+          }
+          
+          newPlayers[i].snake = newSnake;
+        }
+        
+        // Check win condition
+        const alive = newPlayers.filter(p => p.alive);
+        if (alive.length === 0) {
+          setGameOver(true);
+          setWinner('Draw!');
+        } else if (alive.length === 1) {
+          setGameOver(true);
+          setWinner(`${alive[0].name} Wins!`);
+        }
+        
+        return newPlayers;
+      });
+    }, TICK_SPEED);
+
+    return () => clearInterval(interval);
+  }, [gameStarted, gameOver, isPaused, food, playSound, spawnFood]);
+
+  useEffect(() => {
+    const handleKeyDown = (e: KeyboardEvent) => {
+      if (!gameStarted) return;
+      
+      // Player 1: WASD
+      if (e.key === 'w' || e.key === 'W') { e.preventDefault(); if (directionQueues.current[0].length < 3) directionQueues.current[0].push('up'); }
+      if (e.key === 's' || e.key === 'S') { e.preventDefault(); if (directionQueues.current[0].length < 3) directionQueues.current[0].push('down'); }
+      if (e.key === 'a' || e.key === 'A') { e.preventDefault(); if (directionQueues.current[0].length < 3) directionQueues.current[0].push('left'); }
+      if (e.key === 'd' || e.key === 'D') { e.preventDefault(); if (directionQueues.current[0].length < 3) directionQueues.current[0].push('right'); }
+      
+      // Player 2: Arrow keys
+      if (e.key === 'ArrowUp') { e.preventDefault(); if (directionQueues.current[1].length < 3) directionQueues.current[1].push('up'); }
+      if (e.key === 'ArrowDown') { e.preventDefault(); if (directionQueues.current[1].length < 3) directionQueues.current[1].push('down'); }
+      if (e.key === 'ArrowLeft') { e.preventDefault(); if (directionQueues.current[1].length < 3) directionQueues.current[1].push('left'); }
+      if (e.key === 'ArrowRight') { e.preventDefault(); if (directionQueues.current[1].length < 3) directionQueues.current[1].push('right'); }
+      
+      if (e.key === 'p' || e.key === 'P') { e.preventDefault(); if (!gameOver) setIsPaused(p => !p); }
+    };
+    window.addEventListener('keydown', handleKeyDown);
+    return () => window.removeEventListener('keydown', handleKeyDown);
+  }, [gameStarted, gameOver]);
+
+  const renderGrid = () => {
+    const cells = [];
+    const p1Set = new Set(players[0].snake.map(s => `${s.x},${s.y}`));
+    const p2Set = new Set(players[1].snake.map(s => `${s.x},${s.y}`));
+    const p1Head = players[0].snake[0];
+    const p2Head = players[1].snake[0];
+    
+    for (let y = 0; y < GRID_SIZE; y++) {
+      for (let x = 0; x < GRID_SIZE; x++) {
+        const isP1 = p1Set.has(`${x},${y}`);
+        const isP2 = p2Set.has(`${x},${y}`);
+        const isP1Head = p1Head.x === x && p1Head.y === y && players[0].alive;
+        const isP2Head = p2Head.x === x && p2Head.y === y && players[1].alive;
+        const isFood = food.x === x && food.y === y;
+        
+        let bgClass = 'bg-background/50 border-primary/10';
+        let style: React.CSSProperties = { width: cellSize, height: cellSize };
+        
+        if (isP1Head) {
+          bgClass = 'border-primary';
+          style.backgroundColor = players[0].color;
+          style.boxShadow = `0 0 10px ${players[0].color}`;
+        } else if (isP1 && players[0].alive) {
+          bgClass = 'border-primary/60';
+          style.backgroundColor = players[0].color;
+          style.opacity = 0.8;
+        } else if (isP2Head) {
+          bgClass = 'border-purple-500';
+          style.backgroundColor = players[1].color;
+          style.boxShadow = `0 0 10px ${players[1].color}`;
+        } else if (isP2 && players[1].alive) {
+          bgClass = 'border-purple-500/60';
+          style.backgroundColor = players[1].color;
+          style.opacity = 0.8;
+        } else if (isFood) {
+          bgClass = 'bg-destructive/80 border-destructive/60';
+        }
+        
+        cells.push(
+          <div
+            key={`${x}-${y}`}
+            className={`flex items-center justify-center border transition-colors duration-75 ${bgClass}`}
+            style={style}
+          >
+            {isFood && <div className="bg-destructive rounded-sm animate-pulse" style={{ width: cellSize * 0.5, height: cellSize * 0.5 }} />}
+          </div>
+        );
+      }
+    }
+    return cells;
+  };
+
+  return (
+    <motion.div
+      ref={gameRef}
+      tabIndex={0}
+      initial={{ opacity: 0 }}
+      animate={{ opacity: 1 }}
+      transition={{ duration: 0.5 }}
+      className={`flex flex-col outline-none ${isFullscreen ? 'fixed inset-0 z-50 bg-background p-4' : 'h-full'}`}
+    >
+      <div className="flex items-center justify-between mb-2">
+        <div className="flex items-center gap-4">
+          <Link to="/games" className="font-pixel text-sm text-foreground/50 hover:text-primary transition-colors">{'<'} Back</Link>
+          <h1 className="font-minecraft text-2xl md:text-3xl text-primary text-glow-strong">Snake 2P</h1>
+        </div>
+        <button onClick={toggleFullscreen} className="p-2 border border-primary/50 hover:bg-primary/20 transition-colors" title={isFullscreen ? 'Exit fullscreen' : 'Fullscreen'}>
+          {isFullscreen ? <Minimize2 size={16} className="text-primary" /> : <Maximize2 size={16} className="text-primary" />}
+        </button>
+      </div>
+
+      <div className={`flex ${isMobile ? 'flex-col items-center' : 'flex-row gap-4'} flex-1 ${isFullscreen ? 'justify-center items-center' : ''}`}>
+        <div className="border-2 border-primary box-glow p-1 bg-background/80">
+          <div className="grid" style={{ gridTemplateColumns: `repeat(${GRID_SIZE}, ${cellSize}px)` }}>{renderGrid()}</div>
+        </div>
+
+        <div className="flex flex-col gap-2 min-w-[160px]">
+          {/* Player 1 Stats */}
+          <div className="border border-primary/50 p-3 bg-background/50">
+            <div className="flex items-center gap-2 mb-1">
+              <div className="w-3 h-3 rounded-sm" style={{ backgroundColor: players[0].color }} />
+              <p className="font-pixel text-[10px] text-foreground/60">PLAYER 1 (WASD)</p>
+            </div>
+            <p className="font-minecraft text-lg text-primary text-glow">{players[0].score}</p>
+            {!players[0].alive && <p className="font-pixel text-[8px] text-destructive">DEAD</p>}
+          </div>
+          
+          {/* Player 2 Stats */}
+          <div className="border border-purple-500/50 p-3 bg-background/50">
+            <div className="flex items-center gap-2 mb-1">
+              <div className="w-3 h-3 rounded-sm" style={{ backgroundColor: players[1].color }} />
+              <p className="font-pixel text-[10px] text-foreground/60">PLAYER 2 (↑↓←→)</p>
+            </div>
+            <p className="font-minecraft text-lg text-purple-400">{players[1].score}</p>
+            {!players[1].alive && <p className="font-pixel text-[8px] text-destructive">DEAD</p>}
+          </div>
+          
+          <div className="border border-primary/50 p-3 bg-background/50">
+            <p className="font-pixel text-[10px] text-foreground/60 mb-1">CONTROLS</p>
+            <p className="font-pixel text-[9px] text-primary">P1: W A S D</p>
+            <p className="font-pixel text-[9px] text-purple-400">P2: ↑ ↓ ← →</p>
+            <p className="font-pixel text-[9px] text-foreground/80 mt-1">P: Pause</p>
+          </div>
+          
+          {!gameStarted || gameOver ? (
+            <button onClick={startGame} className="font-minecraft text-sm py-2 px-4 border border-primary bg-primary/20 text-primary hover:bg-primary/40 transition-all box-glow">
+              {gameOver ? 'PLAY AGAIN' : 'START'}
+            </button>
+          ) : (
+            <button onClick={() => setIsPaused(p => !p)} className="font-minecraft text-sm py-2 px-4 border border-primary bg-primary/20 text-primary hover:bg-primary/40 transition-all">
+              {isPaused ? 'RESUME' : 'PAUSE'}
+            </button>
+          )}
+        </div>
+      </div>
+
+      {/* Game Over / Pause Overlay */}
+      {(gameOver || isPaused) && gameStarted && (
+        <div className="fixed inset-0 bg-background/80 flex items-center justify-center z-50">
+          <div className="border-2 border-primary box-glow-strong p-6 bg-background text-center">
+            <h2 className="font-minecraft text-2xl text-primary text-glow-strong mb-3">
+              {gameOver ? winner : 'PAUSED'}
+            </h2>
+            {gameOver && (
+              <div className="flex gap-4 justify-center mb-3">
+                <div>
+                  <p className="font-pixel text-[10px] text-foreground/60">P1 Score</p>
+                  <p className="font-minecraft text-lg text-primary">{players[0].score}</p>
+                </div>
+                <div>
+                  <p className="font-pixel text-[10px] text-foreground/60">P2 Score</p>
+                  <p className="font-minecraft text-lg text-purple-400">{players[1].score}</p>
+                </div>
+              </div>
+            )}
+            <button onClick={gameOver ? startGame : () => setIsPaused(false)} className="font-minecraft text-sm py-2 px-6 border border-primary bg-primary/20 text-primary hover:bg-primary/40 transition-all box-glow">
+              {gameOver ? 'PLAY AGAIN' : 'RESUME'}
+            </button>
+          </div>
+        </div>
+      )}
+    </motion.div>
+  );
+};
+
+export default SnakeMultiplayer;