/**** 
* Classes
****/ 
var Coin = Container.expand(function () {
	var self = Container.call(this);
	var coinGraphics = self.attachAsset('coin', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.collected = false;
	self.bobSpeed = 0.1;
	self.bobAmount = 10;
	self.originalY = 0;
	self.update = function () {
		if (!self.collected) {
			self.y = self.originalY + Math.sin(LK.ticks * self.bobSpeed) * self.bobAmount;
			coinGraphics.rotation += 0.05;
		}
	};
	self.collect = function () {
		if (!self.collected) {
			self.collected = true;
			self.visible = false;
			LK.getSound('coin').play();
			LK.setScore(LK.getScore() + 10);
			scoreText.setText('Score: ' + LK.getScore());
		}
	};
	return self;
});
var Enemy = Container.expand(function () {
	var self = Container.call(this);
	var enemyGraphics = self.attachAsset('enemy', {
		anchorX: 0.5,
		anchorY: 1.0
	});
	self.speed = 2;
	self.direction = 1;
	self.patrolDistance = 200;
	self.startX = 0;
	self.update = function () {
		self.x += self.speed * self.direction;
		// Reverse direction at patrol bounds
		if (self.x > self.startX + self.patrolDistance || self.x < self.startX - self.patrolDistance) {
			self.direction *= -1;
		}
	};
	self.setPatrol = function (startX, distance) {
		self.startX = startX;
		self.patrolDistance = distance;
		self.x = startX;
	};
	return self;
});
var Platform = Container.expand(function (width) {
	var self = Container.call(this);
	var platformGraphics = self.attachAsset('platform', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	if (width) {
		platformGraphics.width = width;
	}
	return self;
});
var Player = Container.expand(function () {
	var self = Container.call(this);
	var playerGraphics = self.attachAsset('player', {
		anchorX: 0.5,
		anchorY: 1.0
	});
	self.velocityX = 0;
	self.velocityY = 0;
	self.onGround = false;
	self.speed = 8;
	self.jumpPower = -20;
	self.gravity = 0.8;
	self.maxFallSpeed = 15;
	self.update = function () {
		// Apply gravity
		self.velocityY += self.gravity;
		if (self.velocityY > self.maxFallSpeed) {
			self.velocityY = self.maxFallSpeed;
		}
		// Apply velocity
		self.x += self.velocityX;
		self.y += self.velocityY;
		// Apply friction
		self.velocityX *= 0.85;
		// Keep player in bounds
		if (self.x < 30) {
			self.x = 30;
			self.velocityX = 0;
		}
		if (self.x > 2018) {
			self.x = 2018;
			self.velocityX = 0;
		}
		// Check platform collisions
		self.onGround = false;
		for (var i = 0; i < platforms.length; i++) {
			var platform = platforms[i];
			if (self.intersects(platform) && self.velocityY >= 0 && self.y - 80 < platform.y - 20) {
				self.y = platform.y - 20;
				self.velocityY = 0;
				self.onGround = true;
				break;
			}
		}
		// Check if fell off screen
		if (self.y > 2800) {
			self.x = 1024;
			self.y = 2600;
			self.velocityY = 0;
			self.onGround = false;
		}
	};
	self.jump = function () {
		if (self.onGround) {
			self.velocityY = self.jumpPower;
			self.onGround = false;
			LK.getSound('jump').play();
		}
	};
	self.moveLeft = function () {
		self.velocityX = -self.speed;
	};
	self.moveRight = function () {
		self.velocityX = self.speed;
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x87CEEB
});

/**** 
* Game Code
****/ 
var player;
var platforms = [];
var coins = [];
var enemies = [];
var health = 3;
var maxHealth = 3;
// UI Elements
var scoreText = new Text2('Score: 0', {
	size: 60,
	fill: 0xFFFFFF
});
scoreText.anchor.set(0, 0);
scoreText.x = 120;
scoreText.y = 50;
LK.gui.top.addChild(scoreText);
var healthText = new Text2('Health: 3', {
	size: 60,
	fill: 0xFFFFFF
});
healthText.anchor.set(1, 0);
healthText.x = -50;
healthText.y = 50;
LK.gui.topRight.addChild(healthText);
// Jump button
var jumpButton = game.addChild(LK.getAsset('jumpButton', {
	anchorX: 0.5,
	anchorY: 0.5
}));
jumpButton.x = 1850;
jumpButton.y = 2500;
// Create platforms
var platformData = [{
	x: 1024,
	y: 2650,
	width: 800
},
// Bottom platform
{
	x: 400,
	y: 2400,
	width: 400
}, {
	x: 1600,
	y: 2300,
	width: 400
}, {
	x: 800,
	y: 2100,
	width: 300
}, {
	x: 1400,
	y: 1900,
	width: 350
}, {
	x: 500,
	y: 1700,
	width: 400
}, {
	x: 1200,
	y: 1500,
	width: 300
}, {
	x: 300,
	y: 1300,
	width: 350
}, {
	x: 1500,
	y: 1200,
	width: 400
}, {
	x: 800,
	y: 1000,
	width: 500
}];
for (var i = 0; i < platformData.length; i++) {
	var data = platformData[i];
	var platform = game.addChild(new Platform(data.width));
	platform.x = data.x;
	platform.y = data.y;
	platforms.push(platform);
}
// Create coins
var coinPositions = [{
	x: 400,
	y: 2300
}, {
	x: 1600,
	y: 2200
}, {
	x: 800,
	y: 2000
}, {
	x: 1400,
	y: 1800
}, {
	x: 500,
	y: 1600
}, {
	x: 1200,
	y: 1400
}, {
	x: 300,
	y: 1200
}, {
	x: 1500,
	y: 1100
}, {
	x: 800,
	y: 900
}, {
	x: 1000,
	y: 900
}, {
	x: 600,
	y: 900
}];
for (var i = 0; i < coinPositions.length; i++) {
	var coinPos = coinPositions[i];
	var coin = game.addChild(new Coin());
	coin.x = coinPos.x;
	coin.y = coinPos.y;
	coin.originalY = coinPos.y;
	coins.push(coin);
}
// Create enemies
var enemyData = [{
	platform: 1,
	offset: 0,
	patrol: 150
}, {
	platform: 2,
	offset: 0,
	patrol: 180
}, {
	platform: 4,
	offset: 0,
	patrol: 140
}, {
	platform: 6,
	offset: 0,
	patrol: 120
}, {
	platform: 8,
	offset: 0,
	patrol: 160
}];
for (var i = 0; i < enemyData.length; i++) {
	var enemyInfo = enemyData[i];
	var platformRef = platforms[enemyInfo.platform];
	var enemy = game.addChild(new Enemy());
	enemy.x = platformRef.x + enemyInfo.offset;
	enemy.y = platformRef.y - 20;
	enemy.setPatrol(platformRef.x, enemyInfo.patrol);
	enemies.push(enemy);
}
// Create player
player = game.addChild(new Player());
player.x = 1024;
player.y = 2600;
// Touch controls
var leftPressed = false;
var rightPressed = false;
game.down = function (x, y, obj) {
	if (obj === jumpButton) {
		player.jump();
	} else if (x < 1024) {
		leftPressed = true;
	} else {
		rightPressed = true;
	}
};
game.up = function (x, y, obj) {
	leftPressed = false;
	rightPressed = false;
};
jumpButton.down = function (x, y, obj) {
	player.jump();
};
function takeDamage() {
	health--;
	healthText.setText('Health: ' + health);
	LK.getSound('hit').play();
	LK.effects.flashObject(player, 0xff0000, 500);
	if (health <= 0) {
		LK.showGameOver();
	}
}
game.update = function () {
	// Handle movement input
	if (leftPressed) {
		player.moveLeft();
	}
	if (rightPressed) {
		player.moveRight();
	}
	// Check coin collection
	for (var i = 0; i < coins.length; i++) {
		var coin = coins[i];
		if (!coin.collected && player.intersects(coin)) {
			coin.collect();
		}
	}
	// Check enemy collision with damage cooldown
	if (player.damageCooldown === undefined) {
		player.damageCooldown = 0;
	}
	if (player.damageCooldown > 0) {
		player.damageCooldown--;
	}
	for (var i = 0; i < enemies.length; i++) {
		var enemy = enemies[i];
		if (player.intersects(enemy) && player.damageCooldown === 0) {
			takeDamage();
			player.damageCooldown = 120; // 2 seconds at 60fps
			break;
		}
	}
};