/**** 
* Plugins
****/ 
var tween = LK.import("@upit/tween.v1");

/**** 
* Classes
****/ 
var Boss = Container.expand(function () {
	var self = Container.call(this);
	var bossGraphics = self.attachAsset('tankZombie', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	bossGraphics.scaleX = 2.0; // Much bigger than regular zombies
	bossGraphics.scaleY = 2.0;
	bossGraphics.tint = 0xFF0000; // Red tint to distinguish from regular tanks
	self.speed = 1.5; // Slower but more menacing
	self.health = 300; // Much more health
	self.maxHealth = self.health;
	self.damage = 75; // Much more damage
	self.isBoss = true;
	self.armor = 10; // Boss has armor reducing incoming damage
	self.moveDirection = 1; // For side-to-side movement
	self.moveTimer = 0;
	self.update = function () {
		// Boss moves side to side while advancing
		self.moveTimer++;
		if (self.moveTimer >= 60) {
			// Change direction every second
			self.moveDirection *= -1;
			self.moveTimer = 0;
		}
		// Side to side movement
		self.x += self.moveDirection * 3;
		// Keep boss on screen
		if (self.x < 200) {
			self.x = 200;
			self.moveDirection = 1;
		} else if (self.x > 1848) {
			self.x = 1848;
			self.moveDirection = -1;
		}
		// Move downward from the front
		self.y += self.speed + roadSpeed;
		// Remove if off screen
		if (self.y > 2732 + 50) {
			self.destroy();
			for (var i = bosses.length - 1; i >= 0; i--) {
				if (bosses[i] === self) {
					bosses.splice(i, 1);
					break;
				}
			}
		}
		// Check collision with car
		if (self.intersects(car)) {
			car.takeDamage(self.damage);
			self.destroy();
			for (var i = bosses.length - 1; i >= 0; i--) {
				if (bosses[i] === self) {
					bosses.splice(i, 1);
					break;
				}
			}
		}
	};
	self.takeDamage = function (damage) {
		// Boss armor reduces damage
		var actualDamage = Math.max(1, damage - self.armor);
		self.health -= actualDamage;
		LK.effects.flashObject(self, 0xFFFF00, 200); // Yellow flash for boss
		if (self.health <= 0) {
			LK.setScore(LK.getScore() + 100); // Big bonus points for killing boss
			// Boss death explosion effect
			LK.effects.flashScreen(0xFFFF00, 800);
			self.destroy();
			for (var i = bosses.length - 1; i >= 0; i--) {
				if (bosses[i] === self) {
					bosses.splice(i, 1);
					break;
				}
			}
		}
	};
	return self;
});
var Bullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletGraphics = self.attachAsset('bullet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 15;
	self.damage = car.damage;
	self.update = function () {
		self.y -= self.speed;
		// Remove if off screen
		if (self.y < -50) {
			self.destroy();
			for (var i = bullets.length - 1; i >= 0; i--) {
				if (bullets[i] === self) {
					bullets.splice(i, 1);
					break;
				}
			}
		}
		// Check collision with zombies
		for (var i = zombies.length - 1; i >= 0; i--) {
			var zombie = zombies[i];
			if (self.intersects(zombie)) {
				zombie.takeDamage(self.damage);
				self.destroy();
				for (var j = bullets.length - 1; j >= 0; j--) {
					if (bullets[j] === self) {
						bullets.splice(j, 1);
						break;
					}
				}
				break;
			}
		}
		// Check collision with bosses separately
		for (var i = bosses.length - 1; i >= 0; i--) {
			var boss = bosses[i];
			if (self.intersects(boss)) {
				boss.takeDamage(self.damage);
				self.destroy();
				for (var j = bullets.length - 1; j >= 0; j--) {
					if (bullets[j] === self) {
						bullets.splice(j, 1);
						break;
					}
				}
				break;
			}
		}
	};
	return self;
});
var Car = Container.expand(function () {
	var self = Container.call(this);
	var carGraphics = self.attachAsset('car', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 8;
	self.maxHealth = 100;
	self.health = self.maxHealth;
	self.armor = 0;
	self.damage = 20;
	self.fireRate = 30;
	self.fireTimer = 0;
	self.moveSpeed = 12;
	self.update = function () {
		if (self.fireTimer > 0) {
			self.fireTimer--;
		}
		// Auto-fire bullets
		if (self.fireTimer <= 0) {
			self.fireBullet();
			self.fireTimer = self.fireRate;
		}
	};
	self.fireBullet = function () {
		var bullet = new Bullet();
		bullet.x = self.x;
		bullet.y = self.y - 100;
		bullets.push(bullet);
		game.addChild(bullet);
		LK.getSound('shoot').play();
	};
	self.takeDamage = function (damage) {
		var actualDamage = Math.max(1, damage - self.armor);
		self.health -= actualDamage;
		LK.effects.flashObject(self, 0xff0000, 300);
		LK.getSound('hit').play();
		if (self.health <= 0) {
			LK.showGameOver();
		}
	};
	return self;
});
var Obstacle = Container.expand(function () {
	var self = Container.call(this);
	var obstacleGraphics = self.attachAsset('debris', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.update = function () {
		self.y += roadSpeed;
		// Remove if off screen
		if (self.y > 2732 + 50) {
			self.destroy();
			for (var i = obstacles.length - 1; i >= 0; i--) {
				if (obstacles[i] === self) {
					obstacles.splice(i, 1);
					break;
				}
			}
		}
		// Check collision with car
		if (self.intersects(car)) {
			car.takeDamage(15);
			self.destroy();
			for (var i = obstacles.length - 1; i >= 0; i--) {
				if (obstacles[i] === self) {
					obstacles.splice(i, 1);
					break;
				}
			}
		}
	};
	return self;
});
var Pickup = Container.expand(function (type) {
	var self = Container.call(this);
	self.pickupType = type || 'scrap';
	var assetName = 'scrapMetal';
	if (self.pickupType === 'armor') {
		assetName = 'armorPlate';
	} else if (self.pickupType === 'weapon') {
		assetName = 'weaponPart';
	}
	var pickupGraphics = self.attachAsset(assetName, {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.update = function () {
		self.y += roadSpeed;
		// Remove if off screen
		if (self.y > 2732 + 50) {
			self.destroy();
			for (var i = pickups.length - 1; i >= 0; i--) {
				if (pickups[i] === self) {
					pickups.splice(i, 1);
					break;
				}
			}
		}
		// Check collision with car
		if (self.intersects(car)) {
			self.collect();
		}
	};
	self.collect = function () {
		LK.getSound('collect').play();
		if (self.pickupType === 'scrap') {
			scrapCount++;
			car.speed += 0.1;
			// Heal the car when collecting scrap
			car.health = Math.min(car.maxHealth, car.health + 15);
			// Increase damage when collecting scrap
			car.damage += 2;
		} else if (self.pickupType === 'armor') {
			armorCount++;
			car.armor += 2;
		} else if (self.pickupType === 'weapon') {
			weaponCount++;
			car.damage += 3;
			car.fireRate = Math.max(10, car.fireRate - 1);
		}
		updateUpgradeDisplay();
		self.destroy();
		for (var i = pickups.length - 1; i >= 0; i--) {
			if (pickups[i] === self) {
				pickups.splice(i, 1);
				break;
			}
		}
	};
	return self;
});
var Zombie = Container.expand(function (type) {
	var self = Container.call(this);
	self.zombieType = type || 'normal';
	var assetName = 'zombie';
	if (self.zombieType === 'fast') {
		assetName = 'fastZombie';
		self.speed = 6;
		self.health = 15;
		self.damage = 15;
	} else if (self.zombieType === 'tank') {
		assetName = 'tankZombie';
		self.speed = 3;
		self.health = 50;
		self.damage = 30;
	} else {
		self.speed = 4;
		self.health = 20;
		self.damage = 20;
	}
	var zombieGraphics = self.attachAsset(assetName, {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.maxHealth = self.health;
	self.update = function () {
		// Move downward from the front
		self.y += self.speed + roadSpeed;
		// Remove if off screen
		if (self.y > 2732 + 50) {
			self.destroy();
			for (var i = zombies.length - 1; i >= 0; i--) {
				if (zombies[i] === self) {
					zombies.splice(i, 1);
					break;
				}
			}
		}
		// Check collision with car
		if (self.intersects(car)) {
			car.takeDamage(self.damage);
			self.destroy();
			for (var i = zombies.length - 1; i >= 0; i--) {
				if (zombies[i] === self) {
					zombies.splice(i, 1);
					break;
				}
			}
		}
	};
	self.takeDamage = function (damage) {
		self.health -= damage;
		LK.effects.flashObject(self, 0xff0000, 200);
		if (self.health <= 0) {
			LK.setScore(LK.getScore() + 10);
			self.destroy();
			for (var i = zombies.length - 1; i >= 0; i--) {
				if (zombies[i] === self) {
					zombies.splice(i, 1);
					break;
				}
			}
		}
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x1a5a1a
});

/**** 
* Game Code
****/ 
// Game variables
var car;
var zombies = [];
var bosses = []; // Separate array for boss zombies
var bullets = [];
var pickups = [];
var obstacles = [];
var roadSegments = [];
var roadLines = [];
var roadSpeed = 8;
var spawnTimer = 0;
var pickupTimer = 0;
var obstacleTimer = 0;
var difficultyTimer = 0;
var scrapCount = 0;
var armorCount = 0;
var weaponCount = 0;
var dragActive = false;
var lastBossScore = 0;
// Create road background
for (var i = 0; i < 10; i++) {
	var roadSegment = LK.getAsset('road', {
		anchorX: 0.5,
		anchorY: 0
	});
	roadSegment.x = 1024;
	roadSegment.y = i * 400 - 400;
	roadSegments.push(roadSegment);
	game.addChild(roadSegment);
}
// Create road lines
for (var i = 0; i < 30; i++) {
	var roadLine = LK.getAsset('roadLine', {
		anchorX: 0.5,
		anchorY: 0
	});
	roadLine.x = 1024;
	roadLine.y = i * 150 - 300;
	roadLines.push(roadLine);
	game.addChild(roadLine);
}
// Create car
car = game.addChild(new Car());
car.x = 1024;
car.y = 2200;
// UI Elements
var healthBar = new Text2('Health: 100', {
	size: 60,
	fill: 0xFF4444
});
healthBar.anchor.set(0, 0);
LK.gui.topLeft.addChild(healthBar);
healthBar.x = 120;
healthBar.y = 20;
var scoreText = new Text2('Score: 0', {
	size: 60,
	fill: 0xFFFFFF
});
scoreText.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreText);
var upgradeText = new Text2('Scrap:0 Armor:0 Weapons:0', {
	size: 50,
	fill: 0x00FF00
});
upgradeText.anchor.set(1, 0);
LK.gui.topRight.addChild(upgradeText);
upgradeText.x = -20;
upgradeText.y = 20;
function updateUpgradeDisplay() {
	upgradeText.setText('Scrap:' + scrapCount + ' Armor:' + armorCount + ' Weapons:' + weaponCount);
}
function spawnZombie() {
	var zombieType = 'normal';
	var rand = Math.random();
	if (LK.ticks > 1800) {
		// After 30 seconds
		if (rand < 0.2) zombieType = 'fast';else if (rand < 0.35) zombieType = 'tank';
	}
	var zombie = new Zombie(zombieType);
	zombie.x = Math.random() * 1800 + 124;
	zombie.y = -50;
	zombies.push(zombie);
	game.addChild(zombie);
}
function spawnPickup() {
	var pickupTypes = ['scrap', 'armor', 'weapon'];
	var pickupType = pickupTypes[Math.floor(Math.random() * pickupTypes.length)];
	var pickup = new Pickup(pickupType);
	pickup.x = Math.random() * 1800 + 124;
	pickup.y = -50;
	pickups.push(pickup);
	game.addChild(pickup);
}
function spawnObstacle() {
	var obstacle = new Obstacle();
	obstacle.x = Math.random() * 1800 + 124;
	obstacle.y = -50;
	obstacles.push(obstacle);
	game.addChild(obstacle);
}
function spawnBoss() {
	var boss = new Boss();
	boss.x = 1024; // Center of screen
	boss.y = -100;
	bosses.push(boss); // Add to separate bosses array
	game.addChild(boss);
	LK.effects.flashScreen(0xFF0000, 500); // Red screen flash when boss spawns
}
// Touch controls
game.down = function (x, y, obj) {
	dragActive = true;
};
game.move = function (x, y, obj) {
	if (dragActive) {
		car.x = Math.max(124, Math.min(1924, x));
	}
};
game.up = function (x, y, obj) {
	dragActive = false;
};
game.update = function () {
	// Update road movement
	for (var i = 0; i < roadSegments.length; i++) {
		roadSegments[i].y += roadSpeed;
		if (roadSegments[i].y > 2732) {
			roadSegments[i].y -= 4000;
		}
	}
	for (var i = 0; i < roadLines.length; i++) {
		roadLines[i].y += roadSpeed;
		if (roadLines[i].y > 2732) {
			roadLines[i].y -= 4500;
		}
	}
	// Spawn zombies
	spawnTimer++;
	var spawnRate = Math.max(30, 120 - Math.floor(LK.ticks / 600) * 10);
	if (spawnTimer >= spawnRate) {
		spawnZombie();
		spawnTimer = 0;
	}
	// Spawn pickups
	pickupTimer++;
	if (pickupTimer >= 180) {
		spawnPickup();
		pickupTimer = 0;
	}
	// Spawn obstacles
	obstacleTimer++;
	if (obstacleTimer >= 240) {
		spawnObstacle();
		obstacleTimer = 0;
	}
	// Increase difficulty over time
	difficultyTimer++;
	if (difficultyTimer >= 600) {
		// Every 10 seconds
		roadSpeed += 0.2;
		difficultyTimer = 0;
	}
	// Update score based on survival time
	if (LK.ticks % 60 === 0) {
		LK.setScore(LK.getScore() + 1);
	}
	// Spawn boss every 100 points
	var currentScore = LK.getScore();
	if (currentScore >= lastBossScore + 100 && currentScore > 0) {
		spawnBoss();
		lastBossScore = Math.floor(currentScore / 100) * 100;
	}
	// Update UI
	healthBar.setText('Health: ' + Math.max(0, car.health));
	scoreText.setText('Score: ' + LK.getScore());
};
// Start background music
LK.playMusic('bgmusic');