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

/**** 
* Classes
****/ 
var Balloon = Container.expand(function (isBlack) {
	var self = Container.call(this);
	// Choose balloon type
	var balloonType = isBlack ? 'blackBalloon' : 'colorBalloon';
	var balloonGraphics = self.attachAsset(balloonType, {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Set random color for regular balloons
	if (!isBlack) {
		var colors = [0xff6b6b, 0x4ecdc4, 0x45b7d1, 0x96ceb4, 0xfeca57, 0xff9ff3, 0x54a0ff];
		balloonGraphics.tint = colors[Math.floor(Math.random() * colors.length)];
	}
	self.isBlack = isBlack;
	self.popped = false;
	// Float upward animation
	self.floatSpeed = 1 + Math.random() * 2;
	self.update = function () {
		if (!self.popped) {
			self.y -= self.floatSpeed;
		}
	};
	self.pop = function () {
		if (self.popped) return;
		self.popped = true;
		// Pop animation
		tween(balloonGraphics, {
			scaleX: 1.5,
			scaleY: 1.5,
			alpha: 0
		}, {
			duration: 200,
			easing: tween.easeOut,
			onFinish: function onFinish() {
				self.destroy();
			}
		});
		// Play sound
		if (self.isBlack) {
			LK.getSound('gameOver').play();
		} else {
			LK.getSound('pop').play();
		}
	};
	self.down = function (x, y, obj) {
		if (self.popped) return;
		if (self.isBlack) {
			// Game over
			LK.showGameOver();
		} else {
			// Score point and pop
			LK.setScore(LK.getScore() + 1);
			scoreTxt.setText(LK.getScore());
			self.pop();
		}
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x87ceeb
});

/**** 
* Game Code
****/ 
// Game variables
var balloons = [];
var spawnTimer = 0;
var spawnInterval = 120; // 2 seconds at 60fps
var difficultyTimer = 0;
var difficultyInterval = 600; // 10 seconds at 60fps
// Score display
var scoreTxt = new Text2('0', {
	size: 80,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
scoreTxt.y = 100; // Move down from very top
// Initialize score
scoreTxt.setText(LK.getScore());
game.update = function () {
	// Update all balloons
	for (var i = balloons.length - 1; i >= 0; i--) {
		var balloon = balloons[i];
		// Remove balloons that floated off screen
		if (balloon.y < -100) {
			balloon.destroy();
			balloons.splice(i, 1);
		}
	}
	// Spawn new balloons
	spawnTimer++;
	if (spawnTimer >= spawnInterval) {
		spawnTimer = 0;
		spawnBalloon();
	}
	// Increase difficulty every 10 seconds
	difficultyTimer++;
	if (difficultyTimer >= difficultyInterval) {
		difficultyTimer = 0;
		if (spawnInterval > 30) {
			// Minimum spawn rate
			spawnInterval -= 10;
		}
	}
};
function spawnBalloon() {
	// 15% chance for black balloon
	var isBlack = Math.random() < 0.15;
	var balloon = new Balloon(isBlack);
	// Random position across screen width, spawn below screen
	balloon.x = 100 + Math.random() * (2048 - 200);
	balloon.y = 2732 + 60; // Start below screen
	balloons.push(balloon);
	game.addChild(balloon);
}
// Spawn initial balloons
for (var i = 0; i < 3; i++) {
	LK.setTimeout(function () {
		spawnBalloon();
	}, i * 1000);
}