/**** 
* Plugins
****/ 
var tween = LK.import("@upit/tween.v1");

/**** 
* Classes
****/ 
var Coin = Container.expand(function () {
	var self = Container.call(this);
	var coinGraphics = self.attachAsset('coin', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = gameSpeed;
	self.collected = false;
	self.update = function () {
		self.x -= self.speed;
		if (!self.collected) {
			coinGraphics.rotation += 0.1;
		}
	};
	return self;
});
var Obstacle = Container.expand(function (type) {
	var self = Container.call(this);
	self.type = type || 'low';
	if (self.type === 'high') {
		var obstacleGraphics = self.attachAsset('highObstacle', {
			anchorX: 0.5,
			anchorY: 1
		});
		self.y = 2532;
	} else {
		var obstacleGraphics = self.attachAsset('obstacle', {
			anchorX: 0.5,
			anchorY: 1
		});
		self.y = 2632;
	}
	self.speed = gameSpeed;
	self.update = function () {
		self.x -= self.speed;
	};
	return self;
});
var Player = Container.expand(function () {
	var self = Container.call(this);
	var playerGraphics = self.attachAsset('player', {
		anchorX: 0.5,
		anchorY: 1
	});
	self.isJumping = false;
	self.isSliding = false;
	self.groundY = 2632;
	self.jumpHeight = 200;
	self.velocity = 0;
	self.gravity = 12;
	self.jump = function () {
		if (!self.isJumping && !self.isSliding) {
			self.isJumping = true;
			self.velocity = -18;
			LK.getSound('jump').play();
		}
	};
	self.slide = function () {
		if (!self.isSliding && !self.isJumping) {
			self.isSliding = true;
			playerGraphics.scaleY = 0.5;
			LK.setTimeout(function () {
				self.isSliding = false;
				playerGraphics.scaleY = 1;
			}, 600);
		}
	};
	self.update = function () {
		if (self.isJumping) {
			self.velocity += self.gravity;
			self.y += self.velocity;
			if (self.y >= self.groundY) {
				self.y = self.groundY;
				self.isJumping = false;
				self.velocity = 0;
			}
		}
	};
	return self;
});

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

/**** 
* Game Code
****/ 
var gameSpeed = 8;
var speedIncrease = 0.002;
var distance = 0;
var coins = 0;
var obstacleSpawnTimer = 0;
var coinSpawnTimer = 0;
var isGameRunning = true;
var player = game.addChild(new Player());
player.x = 300;
player.y = 2632;
var ground = game.addChild(LK.getAsset('ground', {
	anchorX: 0,
	anchorY: 0,
	x: 0,
	y: 2632
}));
var obstacles = [];
var gameCoins = [];
var distanceText = new Text2('Distance: 0m', {
	size: 60,
	fill: 0xFFFFFF
});
distanceText.anchor.set(0, 0);
LK.gui.topRight.addChild(distanceText);
distanceText.x = -20;
distanceText.y = 120;
var coinText = new Text2('Coins: 0', {
	size: 60,
	fill: 0xFFFF00
});
coinText.anchor.set(0, 0);
LK.gui.topRight.addChild(coinText);
coinText.x = -20;
coinText.y = 200;
function spawnObstacle() {
	var obstacleType = Math.random() < 0.6 ? 'low' : 'high';
	var obstacle = new Obstacle(obstacleType);
	obstacle.x = 2200;
	obstacles.push(obstacle);
	game.addChild(obstacle);
}
function spawnCoin() {
	var coin = new Coin();
	coin.x = 2200;
	coin.y = Math.random() < 0.5 ? 2500 : 2400;
	gameCoins.push(coin);
	game.addChild(coin);
}
function checkCollisions() {
	for (var i = obstacles.length - 1; i >= 0; i--) {
		var obstacle = obstacles[i];
		if (player.intersects(obstacle)) {
			if (obstacle.type === 'high' && player.isSliding) {
				continue;
			}
			if (obstacle.type === 'low' && player.isJumping && player.y < 2500) {
				continue;
			}
			LK.getSound('hit').play();
			isGameRunning = false;
			LK.showGameOver();
			return;
		}
		if (obstacle.x < -100) {
			obstacle.destroy();
			obstacles.splice(i, 1);
		}
	}
	for (var j = gameCoins.length - 1; j >= 0; j--) {
		var coin = gameCoins[j];
		if (player.intersects(coin) && !coin.collected) {
			coin.collected = true;
			coins++;
			LK.setScore(LK.getScore() + 10);
			coinText.setText('Coins: ' + coins);
			LK.getSound('coin').play();
			coin.destroy();
			gameCoins.splice(j, 1);
		} else if (coin.x < -50) {
			coin.destroy();
			gameCoins.splice(j, 1);
		}
	}
}
game.down = function (x, y, obj) {
	if (!isGameRunning) return;
	if (y > 2732 / 2) {
		player.slide();
	} else {
		player.jump();
	}
};
game.update = function () {
	if (!isGameRunning) return;
	gameSpeed += speedIncrease;
	distance += gameSpeed * 0.1;
	for (var i = 0; i < obstacles.length; i++) {
		obstacles[i].speed = gameSpeed;
	}
	for (var j = 0; j < gameCoins.length; j++) {
		gameCoins[j].speed = gameSpeed;
	}
	obstacleSpawnTimer++;
	if (obstacleSpawnTimer >= Math.max(60, 120 - Math.floor(distance / 100))) {
		spawnObstacle();
		obstacleSpawnTimer = 0;
	}
	coinSpawnTimer++;
	if (coinSpawnTimer >= 90) {
		if (Math.random() < 0.7) {
			spawnCoin();
		}
		coinSpawnTimer = 0;
	}
	checkCollisions();
	distanceText.setText('Distance: ' + Math.floor(distance) + 'm');
	LK.setScore(Math.floor(distance) + coins * 10);
};