/**** 
* Classes
****/ 
// Enemy class
var Enemy = Container.expand(function () {
	var self = Container.call(this);
	var enemyGraphics = self.attachAsset('enemy', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 5;
	self.update = function () {
		self.y += self.speed;
		if (self.y > 2732) {
			self.destroy();
		}
	};
});
//<Assets used in the game will automatically appear here>
// Ninja class
var Ninja = Container.expand(function () {
	var self = Container.call(this);
	var ninjaGraphics = self.attachAsset('ninja', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 10;
	self.update = function () {
		// Ninja update logic
	};
	self.move = function (x, y) {
		self.x = x;
		self.y = y;
	};
});
// Obstacle class
var Obstacle = Container.expand(function () {
	var self = Container.call(this);
	var obstacleGraphics = self.attachAsset('obstacle', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.update = function () {
		// Obstacle update logic
	};
});
// Weapon class
var Weapon = Container.expand(function () {
	var self = Container.call(this);
	var weaponGraphics = self.attachAsset('weapon', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 15;
	self.update = function () {
		self.y -= self.speed;
		if (self.y < 0) {
			self.destroy();
		}
	};
});

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

/**** 
* Game Code
****/ 
// Initialize variables
var ninja;
var enemies = [];
var obstacles = [];
var weapons = [];
var scoreTxt;
var score = 0;
// Initialize game elements
function initGame() {
	ninja = game.addChild(new Ninja());
	ninja.x = 2048 / 2;
	ninja.y = 2732 - 200;
	scoreTxt = new Text2('0', {
		size: 150,
		fill: "#ffffff"
	});
	scoreTxt.anchor.set(0.5, 0);
	LK.gui.top.addChild(scoreTxt);
	// Spawn enemies and obstacles
	LK.setInterval(spawnEnemy, 1000);
	LK.setInterval(spawnObstacle, 2000);
}
// Spawn enemy
function spawnEnemy() {
	var enemy = new Enemy();
	enemy.x = Math.random() * 2048;
	enemy.y = -100;
	enemies.push(enemy);
	game.addChild(enemy);
}
// Spawn obstacle
function spawnObstacle() {
	var obstacle = new Obstacle();
	obstacle.x = Math.random() * 2048;
	obstacle.y = Math.random() * 2732;
	obstacles.push(obstacle);
	game.addChild(obstacle);
}
// Handle game updates
game.update = function () {
	// Update ninja
	ninja.update();
	// Update enemies
	for (var i = enemies.length - 1; i >= 0; i--) {
		enemies[i].update();
		if (ninja.intersects(enemies[i])) {
			gameOver();
		}
	}
	// Update obstacles
	for (var j = obstacles.length - 1; j >= 0; j--) {
		obstacles[j].update();
		if (ninja.intersects(obstacles[j])) {
			gameOver();
		}
	}
	// Update weapons
	for (var k = weapons.length - 1; k >= 0; k--) {
		weapons[k].update();
		for (var i = enemies.length - 1; i >= 0; i--) {
			if (weapons[k].intersects(enemies[i])) {
				enemies[i].destroy();
				weapons[k].destroy();
				enemies.splice(i, 1);
				weapons.splice(k, 1);
				score += 10;
				break;
			}
		}
	}
	// Update score
	scoreTxt.setText(score);
};
// Handle game over
function gameOver() {
	LK.effects.flashScreen(0xff0000, 1000);
	LK.showGameOver();
}
// Handle touch/mouse events
game.down = function (x, y, obj) {
	ninja.move(x, y);
	var weapon = new Weapon();
	weapon.x = ninja.x;
	weapon.y = ninja.y - 50;
	weapons.push(weapon);
	game.addChild(weapon);
};
game.move = function (x, y, obj) {
	ninja.move(x, y);
};
game.up = function (x, y, obj) {
	// No action needed on up event
};
// Initialize game
initGame();