/**** 
* Classes
****/
// Player class
var Player = Container.expand(function () {
	var self = Container.call(this);
	var playerGraphics = self.createAsset('player', 'Player character', 0.5, 1);
	self.speed = 5;
	self.targetX = self.x;
	self.moveLeft = function () {
		if (self.x > self.targetX && self.x > playerGraphics.width / 2) {
			self.x -= self.speed;
		}
	};
	self.moveRight = function () {
		if (self.x < self.targetX && self.x < 2048 - playerGraphics.width / 2) {
			self.x += self.speed;
		}
	};
});
// Player2 class
var Player2 = Container.expand(function () {
	var self = Container.call(this);
	var playerGraphics = self.createAsset('player2', 'Alternate player character', 0.5, 1);
	self.speed = 5;
	self.targetX = self.x;
	self.visible = false;
	self.moveLeft = function () {
		if (self.x > self.targetX && self.x > playerGraphics.width / 2) {
			self.x -= self.speed;
		}
	};
	self.moveRight = function () {
		if (self.x < self.targetX && self.x < 2048 - playerGraphics.width / 2) {
			self.x += self.speed;
		}
	};
});
// Apple class
var Apple = Container.expand(function () {
	var self = Container.call(this);
	var appleGraphics = self.createAsset('apple', 'Falling apple', 0.5, 0.5);
	self.speed = 3;
	self.move = function () {
		self.y += self.speed;
	};
	self.isCaught = function (player, player2) {
		var playerHeadY = player.y - player.height / 2;
		var player2HeadY = player2.y - player2.height / 2;
		var appleBottomY = self.y + self.height / 2;
		return self.intersects(player) && appleBottomY < playerHeadY || self.intersects(player2) && appleBottomY < player2HeadY;
	};
});
// GreenApple class
var GreenApple = Container.expand(function () {
	var self = Container.call(this);
	var appleGraphics = self.createAsset('greenApple', 'Falling green apple', 0.5, 0.5);
	self.speed = 5;
	self.move = function () {
		self.y += self.speed;
	};
	self.isCaught = function (player, player2) {
		var playerHeadY = player.y - player.height / 2;
		var player2HeadY = player2.y - player2.height / 2;
		var appleBottomY = self.y + self.height / 2;
		return self.intersects(player) && appleBottomY < playerHeadY || self.intersects(player2) && appleBottomY < player2HeadY;
	};
});

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

/**** 
* Game Code
****/
// Initialize second background
var background2 = game.addChild(LK.getAsset('background2', 'Second background', 0, 0));
background2.width = 2048;
background2.height = 2732;
background2.x = 0;
background2.y = 0;
background2.anchor.set(0, 0);

// Initialize backgrounds
var background = game.addChild(LK.getAsset('background', 'Game background', 0, 0));
background.width = 2048;
background.height = 2732;
background.x = 0;
background.y = 0;
background.anchor.set(0, 0);

// Initialize player
var player = game.addChild(new Player());
player.x = 2048 / 2;
player.y = 2732 - 50; // Positioned at the bottom of the screen
// Initialize player2
var player2 = game.addChild(new Player2());
player2.x = 2048 / 2;
player2.y = 2732 - 50; // Positioned at the bottom of the screen, same as player

// Initialize apples array
var apples = [];

// Handle touch movement
function handleTouchMove(obj) {
	var touchPos = obj.event.getLocalPosition(game);
	player.targetX = touchPos.x;
	player2.targetX = touchPos.x;
}

// Attach touch move event to the game
game.on('move', handleTouchMove);

// Game tick event
LK.on('tick', function () {
	// Move player towards targetX and control visibility of player and player2
	// Only move if the targetX is not directly on the player
	if (Math.abs(player.x - player.targetX) > player.width / 2) {
		if (player.x < player.targetX) {
			player.moveRight();
			player2.moveRight();
			player.visible = false;
			player2.visible = true;
		} else if (player.x > player.targetX) {
			player.moveLeft();
			player2.moveLeft();
			player.visible = true;
			player2.visible = false;
		}
	}
	// Move apples
	for (var i = apples.length - 1; i >= 0; i--) {
		apples[i].move();
		// Check if apple is caught by the player
		if (apples[i].isCaught(player, player2)) {
			// Increase score
			LK.setScore(LK.getScore() + 1);
			// Remove caught apple
			apples[i].destroy();
			apples.splice(i, 1);
		} else if (apples[i].y > 2732) {
			// Remove apple if it falls off the screen
			apples[i].destroy();
			apples.splice(i, 1);
		}
	}

	// Spawn apples less frequently
	if (LK.ticks % 120 == 0) {
		// Every two seconds
		var newApple = Math.random() < 0.5 ? new Apple() : new GreenApple();
		newApple.x = Math.random() * 2048;
		newApple.y = Math.random() * (2732 / 2 - 50) + 50; // Start in the second-highest half of the screen
		apples.push(newApple);
		game.addChild(newApple);
	}
});