/**** 
* Classes
****/ 
// Assets will be automatically created based on usage in the code.
// Ball class
var Ball = Container.expand(function () {
	var self = Container.call(this);
	var ballGraphics = self.attachAsset('ball', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speedX = 5;
	self.speedY = -5;
	self._move_migrated = function () {
		self.x += self.speedX;
		self.y += self.speedY;
		// Optimize trail particle creation by spawning less frequently
		if (LK.ticks % 5 == 0) {
			var trailParticle = game.addChild(new BallTrail());
			trailParticle.x = self.x;
			trailParticle.y = self.y;
		}
	};
});
// BallTrail class for creating a trail effect behind the ball
var BallTrail = Container.expand(function () {
	var self = Container.call(this);
	var trailGraphics = self.attachAsset('particle', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speedX = 0; // Trail particles do not move horizontally
	self.speedY = 0; // Trail particles do not move vertically
	self.alpha = 0.5; // Start semi-transparent
	self.scaleX = 0.5; // Start smaller than the original particle size
	self.scaleY = 0.5; // Start smaller than the original particle size
	self.update = function () {
		self.alpha -= 0.05; // Fade out quickly
		if (self.alpha <= 0) {
			self.destroy(); // Remove the trail particle once fully faded
		}
	};
});
// Brick class
var Brick = Container.expand(function () {
	var self = Container.call(this);
	var brickGraphics = self.attachAsset('brick', {
		anchorX: 0.5,
		anchorY: 0.5
	});
});
// Enemy class that can only be destroyed by the ball
var Enemy = Container.expand(function () {
	var self = Container.call(this);
	var enemyGraphics = self.attachAsset('brick', {
		anchorX: 0.5,
		anchorY: 0.5,
		color: 0xff0000 // Use red color to differentiate enemies from bricks
	});
});
// EnemyPaddle class that moves to block the ball
var EnemyPaddle = Container.expand(function () {
	var self = Container.call(this);
	var enemyPaddleGraphics = self.attachAsset('paddle', {
		anchorX: 0.5,
		anchorY: 0.5,
		color: 0xff0000 // Red color to differentiate from player paddle
	});
	self.speedX = 3; // Speed at which the enemy paddle moves to block the ball
	self.update = function () {
		// Move towards the ball's x position
		if (ball.x < self.x - 10) {
			self.x -= self.speedX;
		} else if (ball.x > self.x + 10) {
			self.x += self.speedX;
		}
	};
});
// Paddle class
var Paddle = Container.expand(function () {
	var self = Container.call(this);
	var paddleGraphics = self.attachAsset('paddle', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Initialize RGB values
	var r = 255;
	var g = 0;
	var b = 0;
	// Cycle through RGB colors
	self.update = function () {
		// Correct RGB cycling logic
		if (r > 0 && b == 0) {
			if (g < 255) {
				g++;
			} else {
				r--;
			}
		} else if (g > 0 && r == 0) {
			if (b < 255) {
				b++;
			} else {
				g--;
			}
		} else if (b > 0 && g == 0) {
			if (r < 255) {
				r++;
			} else {
				b--;
			}
		}
		// Update paddle color with corrected RGB values
		paddleGraphics.color = (r << 16) + (g << 8) + b;
	};
	self._move_migrated = function (xPosition) {
		self.x = xPosition;
	};
});
// Particle class
var Particle = Container.expand(function () {
	var self = Container.call(this);
	var particleGraphics = self.attachAsset('particle', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speedX = Math.random() * 10 - 5; // Random horizontal speed
	self.speedY = Math.random() * 10 - 5; // Random vertical speed
	self.update = function () {
		self.x += self.speedX;
		self.y += self.speedY;
		self.speedY += 0.1; // Gravity
		self.alpha -= 0.01; // Fade out
		if (self.alpha <= 0) {
			self.destroy();
		}
	};
});
// PowerUp class
var PowerUp = Container.expand(function () {
	var self = Container.call(this);
	var powerUpGraphics = self.attachAsset('powerUp', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speedY = 2; // Set PowerUp falling speed
	self.update = function () {
		self.y += self.speedY; // Make PowerUp fall down
	};
	self.effect = function (ball) {
		ball.scaleX *= 1.5; // Scale up the ball by 50%
		ball.scaleY *= 1.5; // Scale up the ball by 50%
	};
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x000000 // Init game with black background 
});

/**** 
* Game Code
****/ 
var comboMeter = 0; // Initialize combo meter variable
var comboTxt = new Text2(comboMeter.toString(), {
	size: 100,
	fill: "#ff0000"
});
LK.gui.topRight.addChild(comboTxt); // Add the combo meter text to the GUI overlay at the top right
var score = 0; // Initialize score variable
var scoreTxt = new Text2(score.toString(), {
	size: 150,
	fill: "#ffffff"
});
LK.gui.top.addChild(scoreTxt); // Add the score text to the GUI overlay at the top
var ball = game.addChild(new Ball());
ball.x = 1024; // Center horizontally
ball.y = 1366; // Center vertically
var paddle = game.addChild(new Paddle());
paddle.x = 1024; // Center horizontally
paddle.y = 2500; // Position towards the bottom
var bricks = [];
var brickRowCount = 5;
var brickColumnCount = 8;
var brickWidth = 200;
var brickHeight = 100;
var brickPadding = 20;
var brickOffsetTop = 200;
var brickOffsetLeft = 204;
// Create bricks
for (var c = 0; c < brickColumnCount; c++) {
	for (var r = 0; r < brickRowCount; r++) {
		var brickX = c * (brickWidth + brickPadding) + brickOffsetLeft;
		var brickY = r * (brickHeight + brickPadding) + brickOffsetTop;
		var brick = game.addChild(new Brick());
		brick.x = brickX + brickWidth / 2;
		brick.y = brickY + brickHeight / 2;
		bricks.push(brick);
	}
}
// Handle touch move for paddle
game.on('move', function (x, y, obj) {
	var pos = game.toLocal(obj.global);
	paddle._move_migrated(pos.x);
});
// Game tick
var spawnTick = 0; // Initialize spawn tick counter
LK.on('tick', function () {
	spawnTick++;
	// Every 600 ticks (10 seconds), spawn a new row of enemies at the top
	if (spawnTick % 600 == 0) {
		for (var c = 0; c < brickColumnCount; c++) {
			var enemyX = c * (brickWidth + brickPadding) + brickOffsetLeft;
			var enemy = game.addChild(new Enemy());
			enemy.x = enemyX + brickWidth / 2;
			enemy.y = brickOffsetTop; // Spawn enemies at the top without moving existing bricks down
			bricks.push(enemy); // Add enemy to the bricks array for collision detection
		}
	}
	ball._move_migrated();
	// Spawn PowerUp at game start and then randomly every 3000 ticks
	if (spawnTick == 0 || spawnTick % 3000 == 0) {
		var powerUpX = 1024; // Center X position
		var powerUp = game.addChild(new PowerUp());
		powerUp.x = powerUpX;
		powerUp.y = 100; // Start from top
	}
	// Check for PowerUp collision with ball
	for (var p = 0; p < game.children.length; p++) {
		var child = game.children[p];
		if (child instanceof PowerUp && ball.intersects(child)) {
			child.effect(ball); // Apply PowerUp effect to the ball
			child.destroy(); // Remove PowerUp after use
		}
	}
	// Ball collision with walls
	if (ball.x <= ball.width / 2 || ball.x >= 2048 - ball.width / 2) {
		ball.speedX = -ball.speedX;
	}
	if (ball.y <= ball.height / 2) {
		ball.speedY = -ball.speedY;
	}
	// Ball collision with paddle
	if (ball.intersects(paddle)) {
		// Calculate bounce angle based on where the ball hits the paddle
		var hitPos = (ball.x - paddle.x) / paddle.width;
		ball.speedY = -Math.abs(ball.speedY); // Ensure the ball always bounces up
		comboMeter = 0; // Reset combo meter on ball collision with paddle
		ball.speedX = (hitPos - 0.5) * 10; // Adjust speedX based on hit position
	}
	// Ball collision with bricks and enemies
	for (var b = bricks.length - 1; b >= 0; b--) {
		if (ball.intersects(bricks[b])) {
			// Reverse ball direction and slightly increase speed for dynamic gameplay
			ball.speedY = -ball.speedY * 1.05;
			ball.speedX *= 1.05;
			// Add impact shake effect
			// Removed flash effect
			if (bricks[b] instanceof Enemy) {
				score += 20; // Increase score by 20 for each enemy hit
				comboMeter++; // Increment combo meter on enemy hit
				// Spawn particles on enemy destruction
				for (var i = 0; i < 10; i++) {
					// Spawn more particles for enemies
					var particle = game.addChild(new Particle());
					particle.x = bricks[b].x;
					particle.y = bricks[b].y;
				}
			} else {
				score += 10; // Increase score by 10 for each brick hit
				comboMeter++; // Increment combo meter on brick hit
				// Spawn particles on brick destruction
				for (var i = 0; i < 5; i++) {
					var particle = game.addChild(new Particle());
					particle.x = bricks[b].x;
					particle.y = bricks[b].y;
				}
			}
			bricks[b].destroy();
			bricks.splice(b, 1);
			scoreTxt.setText(score.toString()); // Update score display
			// Add enemy paddle to the game when player hits 100 points and ensure it's only added once
			if (score >= 100 && !game.children.some(function (child) {
				return child instanceof EnemyPaddle;
			})) {
				var enemyPaddle = game.addChild(new EnemyPaddle());
				enemyPaddle.x = 1024; // Center horizontally
				enemyPaddle.y = brickOffsetTop + brickRowCount * (brickHeight + brickPadding) + 100; // Position below the bricks
			}
			comboTxt.setText(comboMeter.toString()); // Update combo meter display
		}
	}
	// Game over condition
	if (ball.y >= 2732) {
		LK.showGameOver();
	}
});