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

/**** 
* Classes
****/ 
var BloodSplatter = Container.expand(function () {
	var self = Container.call(this);
	var blood = self.attachAsset('bloodSplatter', {
		anchorX: 0.5,
		anchorY: 0.5,
		alpha: 0.8
	});
	self.fadeOut = function () {
		tween(blood, {
			alpha: 0,
			scaleX: 2,
			scaleY: 2
		}, {
			duration: 1000,
			onFinish: function onFinish() {
				self.destroy();
			}
		});
	};
	return self;
});
var House = Container.expand(function () {
	var self = Container.call(this);
	var houseGraphics = self.attachAsset('house', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.maxHealth = 100;
	self.health = self.maxHealth;
	self.takeDamage = function (damage) {
		self.health -= damage;
		if (self.health < 0) self.health = 0;
		// Flash red when hit
		tween(houseGraphics, {
			tint: 0xFF0000
		}, {
			duration: 300,
			onFinish: function onFinish() {
				tween(houseGraphics, {
					tint: 0xFFFFFF
				}, {
					duration: 300
				});
			}
		});
		// Play sound
		LK.getSound('houseHit').play();
		// Update health bar
		updateHealthBar();
		// Check game over
		if (self.health <= 0) {
			gameOver();
		}
	};
	return self;
});
var Zombie = Container.expand(function (type) {
	var self = Container.call(this);
	type = type || 'normal';
	var assetId = 'zombie';
	if (type === 'fast') assetId = 'fastZombie';else if (type === 'strong') assetId = 'strongZombie';
	var zombieGraphics = self.attachAsset(assetId, {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.type = type;
	self.health = type === 'strong' ? 3 : 1;
	self.maxHealth = self.health;
	self.speed = type === 'fast' ? 2.5 : type === 'strong' ? 1.2 : 1.8;
	self.damage = type === 'strong' ? 2 : 1;
	self.targetX = 1024;
	self.targetY = 1366;
	self.takeDamage = function () {
		self.health--;
		if (self.health > 0) {
			// Flash red when damaged but not killed
			tween(zombieGraphics, {
				tint: 0xFF0000
			}, {
				duration: 200,
				onFinish: function onFinish() {
					tween(zombieGraphics, {
						tint: 0xFFFFFF
					}, {
						duration: 200
					});
				}
			});
		}
		return self.health <= 0;
	};
	self.update = function () {
		var dx = self.targetX - self.x;
		var dy = self.targetY - self.y;
		var distance = Math.sqrt(dx * dx + dy * dy);
		// Rotate zombie to face the house
		var angle = Math.atan2(dy, dx);
		zombieGraphics.rotation = angle;
		if (distance > 10) {
			self.x += dx / distance * self.speed;
			self.y += dy / distance * self.speed;
		}
	};
	self.down = function (x, y, obj) {
		var isDead = self.takeDamage();
		if (isDead) {
			// Create multiple blood splatter particles for spray effect
			for (var j = 0; j < 6; j++) {
				var blood = new BloodSplatter();
				blood.x = self.x;
				blood.y = self.y;
				game.addChild(blood);
				// Random spray direction and distance
				var angle = Math.random() * Math.PI * 2;
				var distance = 50 + Math.random() * 100;
				var targetX = self.x + Math.cos(angle) * distance;
				var targetY = self.y + Math.sin(angle) * distance;
				// Animate blood particle to spray outward
				tween(blood, {
					x: targetX,
					y: targetY,
					rotation: Math.random() * Math.PI * 2
				}, {
					duration: 300 + Math.random() * 200,
					easing: tween.easeOut
				});
				blood.fadeOut();
			}
			// Update score and stats
			zombiesKilled++;
			var points = self.type === 'strong' ? 15 : self.type === 'fast' ? 10 : 5;
			LK.setScore(LK.getScore() + points);
			// Play sound
			LK.getSound('zombieHit').play();
			// Remove from array and destroy
			for (var i = zombies.length - 1; i >= 0; i--) {
				if (zombies[i] === self) {
					zombies.splice(i, 1);
					break;
				}
			}
			self.destroy();
			// Check for level up
			checkLevelUp();
		}
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x2F4F2F
});

/**** 
* Game Code
****/ 
// Game variables
var zombies = [];
var house;
var healthBar;
var healthBarBg;
var scoreTxt;
var levelTxt;
var waveTxt;
var zombiesKilled = 0;
var currentLevel = 1;
var currentWave = 1;
var waveTimer = 0;
var spawnTimer = 0;
var gameRunning = true;
// Initialize UI
scoreTxt = new Text2('Score: 0', {
	size: 60,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0, 0);
scoreTxt.x = 120;
scoreTxt.y = 50;
LK.gui.topLeft.addChild(scoreTxt);
levelTxt = new Text2('Level: 1', {
	size: 50,
	fill: 0xFFD700
});
levelTxt.anchor.set(1, 0);
LK.gui.topRight.addChild(levelTxt);
waveTxt = new Text2('Wave: 1', {
	size: 50,
	fill: 0x87CEEB
});
waveTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(waveTxt);
// Initialize house
house = game.addChild(new House());
house.x = 1024;
house.y = 1366;
// Initialize health bar
healthBarBg = LK.getAsset('healthBarBg', {
	anchorX: 0.5,
	anchorY: 0.5
});
healthBarBg.x = 1024;
healthBarBg.y = 200;
game.addChild(healthBarBg);
healthBar = LK.getAsset('healthBar', {
	anchorX: 0.5,
	anchorY: 0.5
});
healthBar.x = 1024;
healthBar.y = 200;
game.addChild(healthBar);
function updateHealthBar() {
	var healthPercent = house.health / house.maxHealth;
	healthBar.width = 400 * healthPercent;
	// Change color based on health
	if (healthPercent > 0.6) {
		healthBar.tint = 0x00FF00; // Green
	} else if (healthPercent > 0.3) {
		healthBar.tint = 0xFFFF00; // Yellow
	} else {
		healthBar.tint = 0xFF0000; // Red
	}
}
function spawnZombie() {
	var zombie = new Zombie(getZombieType());
	// Spawn from random edge
	var edge = Math.floor(Math.random() * 4);
	switch (edge) {
		case 0:
			// Top
			zombie.x = Math.random() * 2048;
			zombie.y = -50;
			break;
		case 1:
			// Right
			zombie.x = 2098;
			zombie.y = Math.random() * 2732;
			break;
		case 2:
			// Bottom
			zombie.x = Math.random() * 2048;
			zombie.y = 2782;
			break;
		case 3:
			// Left
			zombie.x = -50;
			zombie.y = Math.random() * 2732;
			break;
	}
	zombies.push(zombie);
	game.addChild(zombie);
}
function getZombieType() {
	var rand = Math.random();
	if (currentLevel > 3 && rand < 0.2) return 'strong';
	if (currentLevel > 2 && rand < 0.4) return 'fast';
	return 'normal';
}
function checkLevelUp() {
	var newLevel = Math.floor(zombiesKilled / 10) + 1;
	if (newLevel > currentLevel) {
		currentLevel = newLevel;
		levelTxt.setText('Level: ' + currentLevel);
		LK.effects.flashScreen(0xFFD700, 500);
	}
}
function gameOver() {
	gameRunning = false;
	LK.showGameOver();
}
game.update = function () {
	if (!gameRunning) return;
	// Update score display
	scoreTxt.setText('Score: ' + LK.getScore());
	// Wave management
	waveTimer++;
	if (waveTimer > 1800) {
		// 30 seconds per wave
		currentWave++;
		waveTxt.setText('Wave: ' + currentWave);
		waveTimer = 0;
	}
	// Spawn zombies
	spawnTimer++;
	var spawnRate = Math.max(30 - currentWave * 2, 10); // Faster spawning each wave
	if (spawnTimer > spawnRate) {
		spawnZombie();
		spawnTimer = 0;
	}
	// Check zombie collisions with house
	for (var i = zombies.length - 1; i >= 0; i--) {
		var zombie = zombies[i];
		if (zombie.intersects(house)) {
			house.takeDamage(zombie.damage);
			zombies.splice(i, 1);
			zombie.destroy();
		}
	}
};