const canvas = document.getElementById('game');
const ctx = canvas.getContext('2d');

canvas.width = 800;
canvas.height = 500;

const player = {
  x: 100,
  y: 350,
  width: 32,
  height: 48,
  vx: 0,
  vy: 0,
  speed: 5,
  jumpForce: -14,
  grounded: false,
  hp: 100,
  maxHp: 100,
  facing: 1,
  weapon: 0,
  weaponLevel: 1,
  score: 0,
  invincible: 0,
  level: 1,
  wave: 1
};

const weapons = [
  { name: 'Пистолет', damage: 25, fireRate: 300, color: '#ffff00', bulletSpeed: 10, bulletSize: 6, glow: '#ffff88' },
  { name: 'Автомат', damage: 15, fireRate: 100, color: '#ff8800', bulletSpeed: 12, bulletSize: 5, glow: '#ffcc00' },
  { name: 'Дробовик', damage: 12, fireRate: 600, color: '#ff0000', bulletSpeed: 9, bulletSize: 4, count: 5, glow: '#ff6666' },
  { name: 'Лазер', damage: 45, fireRate: 350, color: '#00ffff', bulletSpeed: 20, bulletSize: 4, glow: '#88ffff', laser: true },
  { name: 'Ракетница', damage: 80, fireRate: 800, color: '#aa00ff', bulletSpeed: 7, bulletSize: 10, glow: '#dd88ff', explosive: true },
  { name: 'Огнемёт', damage: 8, fireRate: 50, color: '#ff4400', bulletSpeed: 6, bulletSize: 12, glow: '#ff8800', flame: true },
  { name: 'Плазма', damage: 35, fireRate: 200, color: '#00ff00', bulletSpeed: 11, bulletSize: 14, glow: '#88ff88', plasma: true }
];

let bullets = [];
let enemies = [];
let powerups = [];
let particles = [];
let explosions = [];
let keys = {};
let paused = false;
let gameTime = 0;
let waveTimer = 0;
let waveActive = false;
let enemiesInWave = 0;
let enemiesToSpawn = 5;
let bossActive = false;
let boss = null;
let backgroundOffset = 0;
let shake = 0;

const enemyTypes = [
  { name: 'soldier', width: 32, height: 48, hp: 50, speed: 1.5, color: '#8b0000', score: 100, weaponDrop: 0.25 },
  { name: 'tank', width: 60, height: 35, hp: 150, speed: 0.8, color: '#2d5016', score: 300, weaponDrop: 0.4 },
  { name: 'helicopter', width: 55, height: 30, hp: 80, speed: 2.2, color: '#4a4a6a', score: 200, weaponDrop: 0.35, fly: true },
  { name: 'commando', width: 34, height: 50, hp: 100, speed: 2.0, color: '#6a006a', score: 250, weaponDrop: 0.5 },
  { name: 'mech', width: 70, height: 55, hp: 250, speed: 0.6, color: '#004a6a', score: 500, weaponDrop: 0.7 }
];

function startWave() {
  if (bossActive) return;
  waveActive = true;
  enemiesToSpawn = 5 + player.wave * 2;
  enemiesInWave = 0;
  waveTimer = 0;
}

function spawnEnemy() {
  const type = enemyTypes[Math.floor(Math.random() * Math.min(enemyTypes.length, 1 + player.wave))];
  const isFly = type.fly;
  enemies.push({
    x: canvas.width + 50,
    y: isFly ? 100 + Math.random() * 150 : 452 - type.height,
    ...type,
    maxHp: type.hp + player.wave * 15,
    hp: type.hp + player.wave * 15,
    shootTimer: 0,
    animFrame: 0,
    fly: isFly,
    isBoss: false
  });
}

function spawnBoss() {
  bossActive = true;
  boss = {
    x: canvas.width - 150,
    y: 280,
    width: 120,
    height: 100,
    hp: 3000 + player.wave * 500,
    maxHp: 3000 + player.wave * 500,
    speed: 0.5,
    color: '#8b0000',
    score: 5000,
    animFrame: 0,
    shootTimer: 0,
    moveTimer: 0,
    isBoss: true,
    phase: 1
  };
  enemies = [];
}

const powerupTypes = [
  { type: 'pistol', color: '#ffff00', label: 'P', weapon: 0 },
  { type: 'machinegun', color: '#ff8800', label: 'M', weapon: 1 },
  { type: 'shotgun', color: '#ff0000', label: 'S', weapon: 2 },
  { type: 'laser', color: '#00ffff', label: 'L', weapon: 3 },
  { type: 'rocket', color: '#aa00ff', label: 'R', weapon: 4 },
  { type: 'flame', color: '#ff4400', label: 'F', weapon: 5 },
  { type: 'plasma', color: '#00ff00', label: 'G', weapon: 6 },
  { type: 'upgrade', color: '#ff00ff', label: '↑', upgrade: true },
  { type: 'health', color: '#00ff00', label: '+', heal: 30 },
  { type: 'maxhealth', color: '#ff0066', label: '♥', maxHeal: true },
  { type: 'shield', color: '#0088ff', label: 'S', shield: true },
  { type: 'bomb', color: '#ff6600', label: 'B', bomb: true }
];

function spawnPowerup(x, y) {
  const t = powerupTypes[Math.floor(Math.random() * powerupTypes.length)];
  powerups.push({
    x, y, width: 28, height: 28,
    ...t,
    vy: -6,
    grounded: false,
    bobOffset: Math.random() * Math.PI * 2
  });
}

function createExplosion(x, y, color, count = 15) {
  for (let i = 0; i < count; i++) {
    const angle = (Math.PI * 2 / count) * i;
    const speed = 2 + Math.random() * 4;
    particles.push({
      x, y,
      vx: Math.cos(angle) * speed,
      vy: Math.sin(angle) * speed,
      life: 30 + Math.random() * 20,
      color: color,
      size: 3 + Math.random() * 4
    });
  }
}

function createBlood(x, y, count = 10) {
  for (let i = 0; i < count; i++) {
    particles.push({
      x, y,
      vx: (Math.random() - 0.5) * 8,
      vy: (Math.random() - 0.5) * 8 - 3,
      life: 40 + Math.random() * 20,
      color: '#cc0000',
      size: 2 + Math.random() * 3,
      gravity: 0.4
    });
  }
}

function createSparks(x, y, count = 8) {
  for (let i = 0; i < count; i++) {
    particles.push({
      x, y,
      vx: (Math.random() - 0.5) * 6,
      vy: (Math.random() - 0.5) * 6,
      life: 20 + Math.random() * 10,
      color: '#ffff00',
      size: 2 + Math.random() * 2,
      gravity: 0.2
    });
  }
}

document.addEventListener('keydown', e => {
  keys[e.code] = true;
  if (e.code === 'KeyX') {
    player.weapon = (player.weapon + 1) % weapons.length;
  }
  if (e.code === 'KeyP' || e.code === 'Escape') {
    togglePause();
  }
});
document.addEventListener('keyup', e => keys[e.code] = false);

function togglePause() {
  paused = !paused;
  document.getElementById('pause-btn').textContent = paused ? '▶ Продолжить' : '⏸ Пауза';
}

function update() {
  if (paused) return;
  
  gameTime++;
  waveTimer++;
  
  if (shake > 0) shake--;
  
  const wpn = weapons[player.weapon];
  const damageMultiplier = 1 + (player.weaponLevel - 1) * 0.15;
  
  if (keys['ArrowLeft']) { player.vx = -player.speed; player.facing = -1; }
  else if (keys['ArrowRight']) { player.vx = player.speed; player.facing = 1; }
  else player.vx = 0;
  
  if (keys['ArrowUp'] && player.grounded) {
    player.vy = player.jumpForce;
    player.grounded = false;
  }
  
  player.vy += 0.7;
  player.x += player.vx;
  player.y += player.vy;
  
  if (player.y > 452 - player.height) {
    player.y = 452 - player.height;
    player.vy = 0;
    player.grounded = true;
  }
  
  if (player.x < 0) player.x = 0;
  if (player.x > canvas.width - player.width) player.x = canvas.width - player.width;
  
  if (keys['KeyZ'] && Date.now() - lastShot > wpn.fireRate) {
    const count = wpn.count || 1;
    for (let i = 0; i < count; i++) {
      const angle = (count > 1) ? (i - (count-1)/2) * 0.15 : 0;
      const spread = wpn.flame ? (Math.random() - 0.5) * 0.4 : 0;
      const shootUp = keys['ArrowUp'] && !player.grounded ? -1 : 0;
      bullets.push({
        x: player.x + player.width/2,
        y: player.y + 14,
        vx: (Math.cos(angle + spread) * wpn.bulletSpeed * player.facing) + (wpn.flame ? (Math.random() - 0.5) * 2 : 0),
        vy: (shootUp !== 0 ? -wpn.bulletSpeed * 0.7 : 0) + Math.sin(angle + spread) * wpn.bulletSpeed + (wpn.flame ? (Math.random() - 0.5) * 2 : 0),
        damage: wpn.damage * damageMultiplier,
        color: wpn.color,
        size: wpn.bulletSize,
        glow: wpn.glow,
        explosive: wpn.explosive,
        flame: wpn.flame,
        plasma: wpn.plasma,
        laser: wpn.laser,
        life: wpn.flame ? 20 : 100
      });
    }
    lastShot = Date.now();
  }
  
  bullets = bullets.filter(b => {
    b.x += b.vx;
    b.y += b.vy;
    if (b.laser) {
      b.life = 10;
      b.x += b.vx * 3;
      b.y += b.vy * 3;
    }
    if (b.flame) b.life--;
    return b.x > -50 && b.x < canvas.width + 50 && b.y > -50 && b.y < canvas.height + 50 && (!b.flame || b.life > 0);
  });
  
  if (!bossActive && waveActive) {
    if (enemiesToSpawn > 0 && waveTimer % 40 === 0) {
      spawnEnemy();
      enemiesToSpawn--;
      enemiesInWave++;
    }
    if (enemiesToSpawn <= 0 && enemies.length === 0) {
      waveActive = false;
      player.wave++;
      document.getElementById('wave').textContent = player.wave;
      if (player.score >= 10000 * player.wave && !bossActive) {
        spawnBoss();
      } else {
        setTimeout(startWave, 2000);
      }
    }
  }
  
  if (bossActive && boss) {
    boss.moveTimer++;
    boss.shootTimer++;
    boss.animFrame++;
    boss.y += Math.sin(boss.moveTimer * 0.03) * 1.5;
    if (boss.x > 500) boss.x -= boss.speed;
    
    if (player.invincible <= 0 &&
        player.x < boss.x + boss.width && player.x + player.width > boss.x &&
        player.y < boss.y + boss.height && player.y + player.height > boss.y) {
      player.hp -= 30;
      player.invincible = 90;
      shake = 10;
      createBlood(player.x + player.width/2, player.y + player.height/2, 20);
    }
    
    if (boss.hp <= 0) {
      player.score += boss.score;
      createExplosion(boss.x + boss.width/2, boss.y + boss.height/2, '#ff0000', 100);
      createBlood(boss.x + boss.width/2, boss.y + boss.height/2, 50);
      for (let i = 0; i < 5; i++) {
        spawnPowerup(boss.x + Math.random() * boss.width, boss.y + Math.random() * boss.height);
      }
      boss = null;
      bossActive = false;
      player.wave++;
      document.getElementById('wave').textContent = player.wave;
      setTimeout(startWave, 3000);
    }
  }
  
  enemies = enemies.filter(e => {
    e.x -= e.speed;
    e.shootTimer++;
    e.animFrame++;
    
    if (e.fly) {
      e.y += Math.sin(e.animFrame * 0.05) * 2;
    }
    
    if (player.invincible <= 0 &&
        player.x < e.x + e.width && player.x + player.width > e.x &&
        player.y < e.y + e.height && player.y + player.height > e.y) {
      player.hp -= 20;
      player.invincible = 60;
      shake = 5;
      createBlood(player.x + player.width/2, player.y + player.height/2, 15);
    }
    
    return e.x > -100 && player.hp > 0;
  });
  
  bullets = bullets.filter(b => {
    let hit = false;
    
    if (bossActive && boss &&
        b.x > boss.x && b.x < boss.x + boss.width &&
        b.y > boss.y && b.y < boss.y + boss.height) {
      boss.hp -= b.damage;
      hit = true;
      createExplosion(b.x, b.y, b.color, b.explosive ? 25 : b.laser ? 15 : 10);
      createSparks(b.x, b.y, 5);
      if (boss.hp <= boss.maxHp * 0.5 && boss.phase === 1) {
        boss.phase = 2;
        boss.speed = 1.0;
      }
    }
    
    enemies.forEach((e, ei) => {
      if (b.x > e.x && b.x < e.x + e.width && b.y > e.y && b.y < e.y + e.height) {
        e.hp -= b.damage;
        hit = true;
        createExplosion(b.x, b.y, b.color, b.explosive ? 25 : b.laser ? 15 : 10);
        
        if (e.hp <= 0) {
          player.score += e.score;
          createBlood(e.x + e.width/2, e.y + e.height/2, e.name === 'tank' || e.name === 'mech' ? 20 : 12);
          if (Math.random() < e.weaponDrop) spawnPowerup(e.x, e.y);
          enemies.splice(ei, 1);
        }
        
        if (b.explosive) {
          explosions.push({ x: b.x, y: b.y, radius: 0, maxRadius: 60, alpha: 1 });
          shake = 3;
        }
      }
    });
    return !hit;
  });
  
  explosions = explosions.filter(e => {
    e.radius += 4;
    e.alpha -= 0.05;
    return e.alpha > 0;
  });
  
  powerups = powerups.filter(p => {
    p.vy += 0.5;
    p.y += p.vy;
    if (p.y > 452 - p.height) { p.y = 452 - p.height; p.vy = 0; p.grounded = true; }
    p.bobOffset += 0.1;
    
    if (player.x < p.x + p.width && player.x + player.width > p.x &&
        player.y < p.y + p.height && player.y + player.height > p.y) {
      if (p.weapon !== undefined) {
        if (player.weapon === p.weapon) {
          player.weaponLevel = Math.min(5, player.weaponLevel + 1);
        } else {
          player.weapon = p.weapon;
          player.weaponLevel = 1;
        }
      }
      if (p.upgrade) {
        player.weaponLevel = Math.min(5, player.weaponLevel + 1);
        createExplosion(p.x + p.width/2, p.y + p.height/2, '#ff00ff', 30);
      }
      if (p.heal) player.hp = Math.min(player.maxHp, player.hp + p.heal);
      if (p.maxHeal) { player.maxHp += 50; player.hp = player.maxHp; }
      if (p.shield) player.invincible = 300;
      if (p.bomb) {
        enemies.forEach(e => { e.hp -= 150; createExplosion(e.x + e.width/2, e.y + e.height/2, '#ff6600', 10); });
        enemies = enemies.filter(e => {
          if (e.hp <= 0) {
            player.score += e.score;
            createBlood(e.x + e.width/2, e.y + e.height/2, 15);
            return false;
          }
          return true;
        });
        if (bossActive && boss) {
          boss.hp -= 500;
          createExplosion(boss.x + boss.width/2, boss.y + boss.height/2, '#ff6600', 30);
          shake = 15;
        }
      }
      player.score += 50;
      createExplosion(p.x + p.width/2, p.y + p.height/2, p.color, 20);
      return false;
    }
    return true;
  });
  
  particles = particles.filter(p => {
    p.x += p.vx;
    p.y += p.vy;
    p.vy += p.gravity || 0.3;
    p.life--;
    p.vx *= 0.95;
    return p.life > 0;
  });
  
  if (player.invincible > 0) player.invincible--;
  
  backgroundOffset += player.vx * 0.3;
  
  document.getElementById('hp').textContent = player.hp;
  document.getElementById('maxhp').textContent = player.maxHp;
  document.getElementById('wpn').textContent = weapons[player.weapon].name + (player.weaponLevel > 1 ? ' +' + (player.weaponLevel - 1) : '');
  document.getElementById('scr').textContent = player.score;
  document.getElementById('wave').textContent = player.wave;
  document.getElementById('wprogress').textContent = enemiesToSpawn + '/' + enemiesInWave;
  
  if (player.hp <= 0) {
    alert('GAME OVER! Счёт: ' + player.score + ', Волна: ' + player.wave);
    resetGame();
  }
}

let lastShot = 0;

function resetGame() {
  player.x = 100; player.y = 350; player.hp = 100; player.maxHp = 100; player.score = 0;
  player.weapon = 0; player.weaponLevel = 1; player.level = 1; player.wave = 1;
  bullets = []; enemies = []; powerups = []; particles = []; explosions = []; boss = null;
  bossActive = false; waveActive = false;
  document.getElementById('wave').textContent = '1';
  startWave();
}

function draw() {
  if (shake > 0) {
    ctx.save();
    ctx.translate((Math.random() - 0.5) * shake * 2, (Math.random() - 0.5) * shake * 2);
  }
  
  const gradient = ctx.createLinearGradient(0, 0, 0, canvas.height);
  gradient.addColorStop(0, '#0a0a1a');
  gradient.addColorStop(0.5, '#16213e');
  gradient.addColorStop(1, '#1a1a2e');
  ctx.fillStyle = gradient;
  ctx.fillRect(0, 0, canvas.width, canvas.height);
  
  ctx.fillStyle = '#fff';
  for (let i = 0; i < 80; i++) {
    const x = ((i * 73 + backgroundOffset * 0.1) % canvas.width + canvas.width) % canvas.width;
    const y = (i * 37) % (canvas.height - 100);
    const size = (i % 3) + 1;
    ctx.globalAlpha = 0.3 + Math.sin(gameTime * 0.05 + i) * 0.2;
    ctx.fillRect(x, y, size, size);
  }
  ctx.globalAlpha = 1;
  
  ctx.fillStyle = '#1a1a2e';
  for (let i = 0; i < 8; i++) {
    const x = ((i * 120 - backgroundOffset * 0.2) % 1200) - 200;
    ctx.beginPath();
    ctx.moveTo(x, 350);
    ctx.lineTo(x + 60, 180);
    ctx.lineTo(x + 120, 350);
    ctx.fill();
  }
  
  ctx.fillStyle = '#2a2a3e';
  for (let i = 0; i < canvas.width; i += 60) {
    const buildingH = 80 + Math.sin(i) * 30;
    ctx.fillRect(i, 452 - buildingH, 50, buildingH);
    const windows = Math.floor(buildingH / 20);
    for (let w = 0; w < windows; w++) {
      for (let col = 0; col < 3; col++) {
        if (Math.sin(gameTime * 0.02 + i + w + col) > 0.3) {
          ctx.fillStyle = '#ffff88';
          ctx.fillRect(i + 8 + col * 14, 452 - buildingH + 10 + w * 20, 8, 12);
          ctx.fillStyle = '#2a2a3e';
        }
      }
    }
  }
  
  ctx.fillStyle = '#3a2e1a';
  ctx.fillRect(0, 452, canvas.width, 48);
  ctx.fillStyle = '#4a3a2a';
  ctx.fillRect(0, 452, canvas.width, 8);
  ctx.fillStyle = '#2d4a1e';
  for (let i = 0; i < canvas.width; i += 20) {
    const grassH = 4 + Math.sin(gameTime * 0.05 + i) * 2;
    ctx.fillRect(i, 452 - grassH, 8, grassH);
  }
  ctx.fillStyle = '#5a4a3a';
  ctx.fillRect(120, 456, 16, 10);
  ctx.fillRect(340, 460, 20, 8);
  ctx.fillRect(580, 454, 14, 12);
  ctx.fillRect(720, 458, 18, 8);
  
  if (player.invincible % 4 < 2) {
    const legOffset = player.vx !== 0 ? Math.sin(Date.now() * 0.02) * 6 : 0;
    ctx.fillStyle = '#2a3a5a';
    ctx.fillRect(player.x + 6, player.y + 36, 8, 12 + legOffset);
    ctx.fillRect(player.x + 18, player.y + 36, 8, 12 - legOffset);
    ctx.fillStyle = '#1a1a2e';
    ctx.fillRect(player.x + 4, player.y + 44, 10, 4);
    ctx.fillRect(player.x + 18, player.y + 44, 10, 4);
    ctx.fillStyle = '#4a90d9';
    ctx.fillRect(player.x + 4, player.y + 14, 24, 26);
    ctx.fillStyle = '#2a2a3a';
    ctx.fillRect(player.x + 4, player.y + 28, 24, 6);
    ctx.fillStyle = '#5a7a9a';
    ctx.fillRect(player.x + 8, player.y + 16, 16, 14);
    ctx.fillStyle = '#ffccaa';
    ctx.fillRect(player.x + 6, player.y - 6, 20, 22);
    ctx.fillStyle = '#3a3a4a';
    ctx.fillRect(player.x + 4, player.y - 10, 24, 10);
    ctx.fillStyle = '#2a3a4a';
    ctx.fillRect(player.x + 8, player.y - 6, 14, 6);
    ctx.fillStyle = '#fff';
    const eyeX = player.facing === 1 ? player.x + 18 : player.x + 10;
    ctx.fillRect(eyeX, player.y + 2, 6, 4);
    ctx.fillStyle = '#000';
    ctx.fillRect(player.facing === 1 ? eyeX + 2 : eyeX, player.y + 3, 3, 2);
    ctx.fillStyle = '#ffccaa';
    ctx.fillRect(player.x + 14, player.y + 16, 10, 10);
    ctx.fillStyle = '#4a90d9';
    const wx = player.facing === 1 ? player.x + 20 : player.x - 8;
    ctx.fillRect(wx, player.y + 18, 28, 10);
    ctx.fillStyle = '#333';
    ctx.fillRect(player.facing === 1 ? wx + 20 : wx, player.y + 20, 12, 6);
    
    if (player.invincible > 60) {
      ctx.strokeStyle = 'rgba(0, 136, 255, 0.5)';
      ctx.lineWidth = 3;
      ctx.beginPath();
      ctx.arc(player.x + player.width/2, player.y + player.height/2, 40, 0, Math.PI * 2);
      ctx.stroke();
    }
  }
  
  bullets.forEach(b => {
    if (b.laser) {
      ctx.strokeStyle = b.glow;
      ctx.lineWidth = b.size * 2;
      ctx.shadowBlur = 20;
      ctx.shadowColor = b.color;
      ctx.beginPath();
      ctx.moveTo(b.x - b.vx * 5, b.y - b.vy * 5);
      ctx.lineTo(b.x, b.y);
      ctx.stroke();
      ctx.shadowBlur = 0;
      ctx.fillStyle = '#fff';
      ctx.beginPath();
      ctx.arc(b.x, b.y, b.size, 0, Math.PI * 2);
      ctx.fill();
    } else {
      const glowGradient = ctx.createRadialGradient(b.x, b.y, 0, b.x, b.y, b.size * 3);
      glowGradient.addColorStop(0, b.glow);
      glowGradient.addColorStop(1, 'transparent');
      ctx.fillStyle = glowGradient;
      ctx.beginPath();
      ctx.arc(b.x, b.y, b.size * 3, 0, Math.PI * 2);
      ctx.fill();
      ctx.fillStyle = b.color;
      ctx.beginPath();
      ctx.arc(b.x, b.y, b.size, 0, Math.PI * 2);
      ctx.fill();
      if (b.plasma) {
        ctx.strokeStyle = b.glow;
        ctx.lineWidth = b.size;
        ctx.beginPath();
        ctx.moveTo(b.x, b.y);
        ctx.lineTo(b.x - b.vx * 2, b.y - b.vy * 2);
        ctx.stroke();
      }
    }
  });
  
  explosions.forEach(e => {
    ctx.fillStyle = `rgba(255, 100, 0, ${e.alpha})`;
    ctx.beginPath();
    ctx.arc(e.x, e.y, e.radius, 0, Math.PI * 2);
    ctx.fill();
    ctx.fillStyle = `rgba(255, 200, 50, ${e.alpha * 0.7})`;
    ctx.beginPath();
    ctx.arc(e.x, e.y, e.radius * 0.7, 0, Math.PI * 2);
    ctx.fill();
  });
  
  particles.forEach(p => {
    ctx.globalAlpha = p.life / 50;
    ctx.fillStyle = p.color;
    ctx.beginPath();
    ctx.arc(p.x, p.y, p.size, 0, Math.PI * 2);
    ctx.fill();
  });
  ctx.globalAlpha = 1;
  
  if (bossActive && boss) {
    boss.animFrame++;
    ctx.fillStyle = '#3a1a1a';
    ctx.fillRect(boss.x + 10, boss.y + 50, 100, 50);
    ctx.fillStyle = boss.color;
    ctx.fillRect(boss.x + 20, boss.y + 20, 80, 40);
    ctx.fillRect(boss.x + 40, boss.y, 40, 30);
    ctx.fillStyle = '#ff4400';
    ctx.beginPath();
    ctx.arc(boss.x + 60, boss.y + 15, 12, 0, Math.PI * 2);
    ctx.fill();
    ctx.fillStyle = '#ff0000';
    ctx.beginPath();
    ctx.arc(boss.x + 60, boss.y + 15, 6, 0, Math.PI * 2);
    ctx.fill();
    ctx.fillStyle = '#5a2a2a';
    ctx.fillRect(boss.x, boss.y + 60, 20, 40);
    ctx.fillRect(boss.x + 100, boss.y + 60, 20, 40);
    const hpPct = boss.hp / boss.maxHp;
    ctx.fillStyle = '#333';
    ctx.fillRect(boss.x, boss.y - 25, boss.width, 12);
    ctx.fillStyle = hpPct > 0.5 ? '#0f0' : hpPct > 0.25 ? '#ff0' : '#f00';
    ctx.fillRect(boss.x + 2, boss.y - 23, (boss.width - 4) * hpPct, 8);
    ctx.fillStyle = '#fff';
    ctx.font = 'bold 14px monospace';
    ctx.textAlign = 'center';
    ctx.fillText('БОСС', boss.x + boss.width/2, boss.y - 28);
    ctx.textAlign = 'left';
  }
  
  enemies.forEach(e => {
    e.animFrame++;
    if (e.name === 'soldier') {
      const legOffset = Math.sin(e.animFrame * 0.3) * 6;
      ctx.fillStyle = '#1a1a2e';
      ctx.fillRect(e.x + 6, e.y + 36, 8, 12 + legOffset);
      ctx.fillRect(e.x + 18, e.y + 36, 8, 12 - legOffset);
      ctx.fillStyle = e.color;
      ctx.fillRect(e.x + 4, e.y + 14, 24, 24);
      ctx.fillStyle = '#ffccaa';
      ctx.fillRect(e.x + 6, e.y, 20, 16);
      ctx.fillStyle = '#3a4a3a';
      ctx.fillRect(e.x + 4, e.y - 4, 24, 8);
      ctx.fillStyle = '#4a2a2a';
      ctx.fillRect(e.x + 16, e.y + 18, 14, 8);
      ctx.fillStyle = '#444';
      ctx.fillRect(e.x + 28, e.y + 20, 12, 6);
    } else if (e.name === 'tank') {
      ctx.fillStyle = '#1a1a1a';
      const trackOffset = Math.sin(e.animFrame * 0.1) * 2;
      ctx.fillRect(e.x, e.y + 24 + trackOffset, e.width, 11);
      ctx.fillStyle = e.color;
      ctx.fillRect(e.x + 4, e.y + 8, e.width - 8, 20);
      ctx.fillStyle = '#3d6016';
      ctx.fillRect(e.x + 18, e.y, 24, 14);
      ctx.fillStyle = '#2d4010';
      ctx.fillRect(e.x + 36, e.y + 4, 28, 8);
      ctx.fillStyle = '#1a1a1a';
      ctx.beginPath();
      ctx.arc(e.x + 30, e.y + 7, 5, 0, Math.PI * 2);
      ctx.fill();
    } else if (e.name === 'helicopter') {
      ctx.fillStyle = '#333';
      const rotorOffset = Math.sin(e.animFrame * 0.8) * 20;
      ctx.fillRect(e.x - 15, e.y - 8, 85, 4);
      ctx.fillRect(e.x + 25 + rotorOffset, e.y - 12, 6, 8);
      ctx.fillStyle = e.color;
      ctx.beginPath();
      ctx.ellipse(e.x + 25, e.y + 8, 30, 15, 0, 0, Math.PI * 2);
      ctx.fill();
      ctx.fillStyle = '#6a8aaa';
      ctx.beginPath();
      ctx.arc(e.x + 40, e.y + 5, 12, 0, Math.PI * 2);
      ctx.fill();
      ctx.fillStyle = e.color;
      ctx.fillRect(e.x - 20, e.y + 4, 20, 8);
      ctx.fillRect(e.x - 25, e.y, 8, 16);
    } else if (e.name === 'commando') {
      const legOffset = Math.sin(e.animFrame * 0.4) * 8;
      ctx.fillStyle = '#2a1a2a';
      ctx.fillRect(e.x + 8, e.y + 38, 7, 12 + legOffset);
      ctx.fillRect(e.x + 19, e.y + 38, 7, 12 - legOffset);
      ctx.fillStyle = e.color;
      ctx.fillRect(e.x + 6, e.y + 16, 22, 24);
      ctx.fillStyle = '#ffccaa';
      ctx.fillRect(e.x + 8, e.y + 2, 18, 16);
      ctx.fillStyle = '#4a1a4a';
      ctx.fillRect(e.x + 6, e.y - 2, 22, 8);
      ctx.fillStyle = '#6a2a6a';
      ctx.fillRect(e.x + 18, e.y + 20, 16, 8);
      ctx.fillStyle = '#333';
      ctx.fillRect(e.x + 32, e.y + 22, 14, 6);
    } else if (e.name === 'mech') {
      const legOffset = Math.sin(e.animFrame * 0.15) * 4;
      ctx.fillStyle = '#1a2a3a';
      ctx.fillRect(e.x + 10, e.y + 40, 14, 15 + legOffset);
      ctx.fillRect(e.x + 46, e.y + 40, 14, 15 - legOffset);
      ctx.fillStyle = e.color;
      ctx.fillRect(e.x + 8, e.y + 20, 54, 28);
      ctx.fillRect(e.x + 20, e.y + 8, 30, 20);
      ctx.fillStyle = '#006688';
      ctx.beginPath();
      ctx.arc(e.x + 35, e.y + 18, 10, 0, Math.PI * 2);
      ctx.fill();
      ctx.fillStyle = '#003344';
      ctx.fillRect(e.x + 50, e.y + 24, 24, 10);
      ctx.fillStyle = '#ff4400';
      ctx.beginPath();
      ctx.arc(e.x + 35, e.y + 18, 4, 0, Math.PI * 2);
      ctx.fill();
    }
    
    const hpPct = e.hp / e.maxHp;
    ctx.fillStyle = '#333';
    ctx.fillRect(e.x, e.y - 16, e.width, 8);
    ctx.fillStyle = hpPct > 0.5 ? '#0f0' : hpPct > 0.25 ? '#ff0' : '#f00';
    ctx.fillRect(e.x + 1, e.y - 15, (e.width - 2) * hpPct, 6);
  });
  
  powerups.forEach(p => {
    const bobY = p.grounded ? Math.sin(p.bobOffset) * 4 : 0;
    const glowGradient = ctx.createRadialGradient(p.x + p.width/2, p.y + p.height/2 + bobY, 0, p.x + p.width/2, p.y + p.height/2 + bobY, 20);
    glowGradient.addColorStop(0, p.color);
    glowGradient.addColorStop(1, 'transparent');
    ctx.fillStyle = glowGradient;
    ctx.beginPath();
    ctx.arc(p.x + p.width/2, p.y + p.height/2 + bobY, 20, 0, Math.PI * 2);
    ctx.fill();
    ctx.fillStyle = p.color;
    ctx.fillRect(p.x + 2, p.y + 4 + bobY, p.width - 4, p.height - 4);
    ctx.strokeStyle = '#fff';
    ctx.lineWidth = 2;
    ctx.strokeRect(p.x + 2, p.y + 4 + bobY, p.width - 4, p.height - 4);
    ctx.fillStyle = '#fff';
    ctx.font = 'bold 18px monospace';
    ctx.textAlign = 'center';
    ctx.fillText(p.label, p.x + p.width/2, p.y + 20 + bobY);
    ctx.textAlign = 'left';
  });
  
  if (shake > 0) ctx.restore();
}

function loop() {
  update();
  draw();
  requestAnimationFrame(loop);
}

startWave();
loop();