/**** 
* Classes
****/
// Class for the poles consisting of cubes
var Pole = Container.expand(function () {
	var self = Container.call(this);
	self.cubes = [];
	self.addCube = function () {
		var cube = self.attachAsset('cube', {
			anchorX: 0.5,
			anchorY: 0.5
		});
		cube.y = -(self.cubes.length * 100) - self.cubes.length * 2;
		self.cubes.push(cube);
	};
	self.getHeight = function () {
		return self.cubes.length * 100 + (self.cubes.length - 1) * 2;
	};
});
// Class for the player's hero
var Hero = Container.expand(function () {
	var self = Container.call(this);
	var heroGraphics = self.attachAsset('hero', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.isOnGround = false;
	self.velocityY = 0;
	self.jump = function () {
		if (self.isOnGround) {
			self.velocityY = -15;
			self.isOnGround = false;
		}
	};
	self.update = function () {
		self.y += self.velocityY;
		self.velocityY += 0.5; // Gravity effect
	};
});

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

/**** 
* Game Code
****/
// Initialize assets used in the game.
// Initialize important asset arrays
var poles = [];
var hero;
// Create the hero
hero = game.addChild(new Hero());
hero.x = 2048 / 2;
hero.y = 2732 - 150; // Start above the bottom of the screen
// Create initial poles
function createInitialPoles() {
	for (var i = 0; i < 5; i++) {
		var pole = game.addChild(new Pole());
		pole.x = 300 + i * (100 + 2); // Space out poles horizontally with 2 pixels between them
		pole.y = 2732; // Align base of pole with bottom of the screen
		for (var j = 0; j < 3; j++) {
			// Add 3 cubes to each pole
			pole.addCube();
		}
		poles.push(pole);
	}
}
createInitialPoles();
// Event listener for jump action
game.on('down', function (obj) {
	hero.jump();
});
// Game tick update
LK.on('tick', function () {
	hero.update();
	// Collision detection with poles
	for (var i = 0; i < poles.length; i++) {
		var pole = poles[i];
		if (hero.intersects(pole) && hero.velocityY > 0 && hero.y + hero.height / 2 < pole.y) {
			hero.y = pole.y - pole.getHeight() - hero.height / 2;
			hero.isOnGround = true;
			hero.velocityY = 0;
		}
	}
	// Remove off-screen poles and create new ones
	if (poles.length > 0 && poles[0].x + poles[0].width / 2 < 0) {
		poles[0].destroy();
		poles.shift();
		var newPoleX = poles.length > 0 ? poles[poles.length - 1].x + 100 + 2 : 2048 + 100; // Start off-screen to the right
		var newPole = game.addChild(new Pole());
		newPole.x = newPoleX;
		newPole.y = 2732;
		var cubesCount = Math.floor(Math.random() * 3) + 1; // Random number of cubes between 1 and 3
		for (var j = 0; j < cubesCount; j++) {
			newPole.addCube();
		}
		poles.push(newPole);
	}
	// Move poles to the left to simulate hero running
	for (var i = 0; i < poles.length; i++) {
		poles[i].x -= 5;
	}
});