/**** 
* Classes
****/ 
var Gun = Container.expand(function () {
	var self = Container.call(this);
	var gunGraphics = self.attachAsset('gun', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	var muzzleFlash = self.attachAsset('muzzleFlash', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 30,
		y: 0
	});
	muzzleFlash.visible = false;
	self.fire = function () {
		// Show muzzle flash
		muzzleFlash.visible = true;
		LK.getSound('gunShot').play();
		// Hide muzzle flash after brief moment
		LK.setTimeout(function () {
			muzzleFlash.visible = false;
		}, 100);
	};
	return self;
});
var Hero = Container.expand(function () {
	var self = Container.call(this);
	var heroGraphics = self.attachAsset('hero', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.health = 1;
	self.gun = self.addChild(new Gun());
	self.gun.x = 30;
	self.gun.y = -10;
	// Target position for hero to follow cursor
	self.targetX = self.x;
	self.targetY = self.y;
	self.speed = 5;
	self.aimAt = function (targetX, targetY) {
		var dx = targetX - self.x;
		var dy = targetY - self.y;
		var angle = Math.atan2(dy, dx);
		self.gun.rotation = angle;
		// Update gun position based on rotation to simulate holding it
		var gunOffsetX = Math.cos(angle) * 25;
		var gunOffsetY = Math.sin(angle) * 25;
		self.gun.x = gunOffsetX;
		self.gun.y = gunOffsetY;
	};
	self.shoot = function () {
		self.gun.fire();
	};
	self.update = function () {
		// Move toward target cursor position
		var dx = self.targetX - self.x;
		var dy = self.targetY - self.y;
		var distance = Math.sqrt(dx * dx + dy * dy);
		if (distance > 5) {
			// Use faster speed if right button is held down (25% faster)
			var currentSpeed = isRightButtonDown ? self.speed * 1.25 : self.speed;
			// Only move if not very close to target
			self.x += dx / distance * currentSpeed;
			self.y += dy / distance * currentSpeed;
			// Keep hero within screen bounds
			self.x = Math.max(40, Math.min(2048 - 40, self.x));
			self.y = Math.max(40, Math.min(2732 - 40, self.y));
		}
	};
	return self;
});
var Zombie = Container.expand(function () {
	var self = Container.call(this);
	var zombieGraphics = self.attachAsset('zombie', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 2;
	self.targetX = 0;
	self.targetY = 0;
	self.update = function () {
		// Move toward target (hero position)
		var dx = self.targetX - self.x;
		var dy = self.targetY - self.y;
		var distance = Math.sqrt(dx * dx + dy * dy);
		if (distance > 0) {
			self.x += dx / distance * self.speed;
			self.y += dy / distance * self.speed;
		}
	};
	return self;
});

/**** 
* Initialize Game
****/ 
// Game variables
var game = new LK.Game({
	backgroundColor: 0x8B4513
});

/**** 
* Game Code
****/ 
// Game variables
var hero;
var zombies = [];
var dragNode = null;
var spawnTimer = 0;
var spawnInterval = 120; // Start spawning every 2 seconds
var gameTime = 0;
var lastHeroX = 0;
var lastHeroY = 0;
var isRightButtonDown = false;
var playerHealth = 100;
var maxHealth = 100;
// Create score display
var scoreTxt = new Text2('Score: 0', {
	size: 60,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
// Create health bar at bottom right
var healthTxt = new Text2('Health: 100/100', {
	size: 50,
	fill: 0x00FF00
});
healthTxt.anchor.set(1, 1);
LK.gui.bottomRight.addChild(healthTxt);
// Create and position hero at center
hero = game.addChild(new Hero());
hero.x = 2048 / 2;
hero.y = 2732 / 2;
hero.targetX = hero.x;
hero.targetY = hero.y;
lastHeroX = hero.x;
lastHeroY = hero.y;
// Start energetic background music
LK.playMusic('enerjik');
// Add event listeners for right mouse button
LK.on('contextmenu', function (event) {
	isRightButtonDown = true;
});
LK.on('contextmenuup', function (event) {
	isRightButtonDown = false;
});
// Spawn zombie at random edge
function spawnZombie() {
	var zombie = new Zombie();
	var edge = Math.floor(Math.random() * 4); // 0=top, 1=right, 2=bottom, 3=left
	switch (edge) {
		case 0:
			// Top
			zombie.x = Math.random() * 2048;
			zombie.y = -30;
			break;
		case 1:
			// Right
			zombie.x = 2048 + 30;
			zombie.y = Math.random() * 2732;
			break;
		case 2:
			// Bottom
			zombie.x = Math.random() * 2048;
			zombie.y = 2732 + 30;
			break;
		case 3:
			// Left
			zombie.x = -30;
			zombie.y = Math.random() * 2732;
			break;
	}
	zombie.targetX = hero.x;
	zombie.targetY = hero.y;
	zombie.speed = 1.5 + gameTime / 1800 + LK.getScore() / 500; // Increase speed over time and score
	zombie.lastIntersecting = false;
	zombies.push(zombie);
	game.addChild(zombie);
}
// Handle dragging
game.down = function (x, y, obj) {
	// Aim gun at tap location
	hero.aimAt(x, y);
	// Check if tapping on zombie to destroy it
	for (var i = zombies.length - 1; i >= 0; i--) {
		var zombie = zombies[i];
		var distance = Math.sqrt((x - zombie.x) * (x - zombie.x) + (y - zombie.y) * (y - zombie.y));
		if (distance < 150) {
			// Shoot and destroy zombie
			hero.shoot();
			LK.setScore(LK.getScore() + 10);
			scoreTxt.setText('Score: ' + LK.getScore());
			LK.getSound('zombieHit').play();
			LK.effects.flashObject(zombie, 0xffff00, 200);
			zombie.destroy();
			zombies.splice(i, 1);
			break;
		}
	}
};
game.move = function (x, y, obj) {
	// Store cursor position for hero to follow
	hero.targetX = x;
	hero.targetY = y;
	// Always aim gun at current cursor/touch position
	hero.aimAt(x, y);
};
game.up = function (x, y, obj) {
	// No longer needed for dragging
};
// Main game loop
game.update = function () {
	gameTime++;
	spawnTimer++;
	// Update hero target for zombies
	if (hero.x !== lastHeroX || hero.y !== lastHeroY) {
		for (var i = 0; i < zombies.length; i++) {
			zombies[i].targetX = hero.x;
			zombies[i].targetY = hero.y;
		}
		lastHeroX = hero.x;
		lastHeroY = hero.y;
	}
	// Spawn zombies with increasing frequency based on score
	var scoreBonus = Math.floor(LK.getScore() / 50); // Every 50 points reduces spawn interval
	var currentSpawnInterval = Math.max(20, spawnInterval - Math.floor(gameTime / 600) - scoreBonus * 10);
	if (spawnTimer >= currentSpawnInterval) {
		spawnZombie();
		spawnTimer = 0;
	}
	// Update zombies and check collisions
	for (var i = zombies.length - 1; i >= 0; i--) {
		var zombie = zombies[i];
		// Check collision with hero
		var currentIntersecting = zombie.intersects(hero);
		if (!zombie.lastIntersecting && currentIntersecting) {
			// Zombie hit - reduce health by 25
			playerHealth -= 25;
			LK.getSound('gameOverSound').play();
			LK.effects.flashScreen(0xff0000, 500);
			// Update health bar color based on health level
			var healthColor = 0x00FF00; // Green
			if (playerHealth <= 50) healthColor = 0xFFFF00; // Yellow
			if (playerHealth <= 25) healthColor = 0xFF0000; // Red
			healthTxt.setText('Health: ' + playerHealth + '/' + maxHealth);
			healthTxt.fill = healthColor;
			// Check if health reaches 0
			if (playerHealth <= 0) {
				LK.showGameOver();
				return;
			}
			// Remove the zombie that hit the player
			zombie.destroy();
			zombies.splice(i, 1);
			continue;
		}
		zombie.lastIntersecting = currentIntersecting;
		// Remove zombies that are too far off screen
		if (zombie.x < -100 || zombie.x > 2148 || zombie.y < -100 || zombie.y > 2832) {
			zombie.destroy();
			zombies.splice(i, 1);
		}
	}
};