/**** 
* Classes
****/ 
// Coin class: collectible coin between columns
var Coin = Container.expand(function () {
	var self = Container.call(this);
	var coinAsset = self.attachAsset('gapBox', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 0.5,
		scaleY: 0.5,
		alpha: 1
	});
	coinAsset.tint = 0xFFD700; // gold color
	self.speed = 7;
	self.collected = false;
	self.update = function () {
		self.lastX = self.x;
		self.x -= self.speed;
	};
	return self;
});
// Gap class: invisible area between pipes for scoring
var Gap = Container.expand(function () {
	var self = Container.call(this);
	var gapAsset = self.attachAsset('gapBox', {
		anchorX: 0.5,
		anchorY: 0.5,
		alpha: 0 // invisible
	});
	self.speed = 7;
	self.passed = false;
	self.update = function () {
		self.lastX = self.x;
		self.x -= self.speed;
	};
	return self;
});
// Obstacle class: a single vertical pipe (top or bottom)
var Obstacle = Container.expand(function () {
	var self = Container.call(this);
	var obstacleAsset = self.attachAsset('obstacleRect', {
		anchorX: 0.5,
		anchorY: 0.0
	});
	self.speed = 7;
	self.passed = false;
	self.update = function () {
		self.lastX = self.x;
		self.x -= self.speed;
	};
	return self;
});
// Player class: the flappy square
var Player = Container.expand(function () {
	var self = Container.call(this);
	var playerAsset = self.attachAsset('playerSquare', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.gravity = 1.4;
	self.jumpStrength = -32;
	self.velocityY = 0;
	self.alive = true;
	self.update = function () {
		if (!self.alive) return;
		self.lastY = self.y;
		self.velocityY += self.gravity;
		self.y += self.velocityY;
	};
	self.jump = function () {
		if (!self.alive) return;
		self.velocityY = self.jumpStrength;
	};
	self.die = function () {
		self.alive = false;
	};
	return self;
});

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

/**** 
* Game Code
****/ 
;
// --- Add Background Image ---
var background = LK.getAsset('backgroundImage', {
	anchorX: 0,
	anchorY: 0,
	x: 0,
	y: 0
});
game.addChild(background);
// --- Flappy Square Game Variables ---
var player;
var obstacles = [];
var gaps = [];
var score = 0;
var scoreTxt;
var gameStarted = false;
var spawnInterval = 120; // frames between pipes
var ticksSinceLastSpawn = 0;
var gapHeight = 700;
var pipeWidth = 180; // match obstacleRect width for tall columns
var minPipeHeight = 300;
var maxPipeHeight = 1800;
// --- Initialize Player and Score ---
function resetGame() {
	// Remove old obstacles and gaps
	for (var i = 0; i < obstacles.length; i++) {
		obstacles[i].destroy();
	}
	for (var j = 0; j < gaps.length; j++) {
		gaps[j].destroy();
	}
	obstacles = [];
	gaps = [];
	// Remove old coins
	if (window.coins) {
		for (var i = 0; i < window.coins.length; i++) {
			window.coins[i].destroy();
		}
		window.coins = [];
	}
	// Remove old player if exists
	if (player) player.destroy();
	// Create player
	player = new Player();
	player.x = 600;
	player.y = 1366;
	game.addChild(player);
	// Reset score
	score = 0;
	if (!scoreTxt) {
		scoreTxt = new Text2('0', {
			size: 180,
			fill: 0xFFFFFF
		});
		scoreTxt.anchor.set(0.5, 0);
		LK.gui.top.addChild(scoreTxt);
	}
	scoreTxt.setText(score);
	// Reset state
	gameStarted = false;
	ticksSinceLastSpawn = 0;
}
resetGame();
// --- Tap to Jump ---
game.down = function (x, y, obj) {
	if (!gameStarted) {
		gameStarted = true;
		player.velocityY = 0;
	}
	if (player.alive) {
		player.jump();
	}
};
// --- Main Game Loop ---
game.update = function () {
	if (!player.alive) return;
	// Only scroll and spawn pipes after first tap
	if (gameStarted) {
		// Update player
		player.update();
		// Spawn obstacles and gaps
		ticksSinceLastSpawn++;
		if (ticksSinceLastSpawn >= spawnInterval) {
			ticksSinceLastSpawn = 0;
			// Randomize gap position
			var gapY = minPipeHeight + Math.floor(Math.random() * (maxPipeHeight - minPipeHeight - gapHeight));
			// Top pipe
			var topPipe = new Obstacle();
			topPipe.x = 2200;
			topPipe.y = 0;
			// Use tall obstacle asset, position so bottom aligns with gap
			topPipe.height = gapY;
			topPipe.scaleY = gapY / 1600;
			game.addChild(topPipe);
			obstacles.push(topPipe);
			// Bottom pipe
			var bottomPipe = new Obstacle();
			bottomPipe.x = 2200;
			bottomPipe.y = gapY + gapHeight;
			// Use tall obstacle asset, position so top aligns with gap
			bottomPipe.height = 2732 - (gapY + gapHeight);
			bottomPipe.scaleY = bottomPipe.height / 1600;
			game.addChild(bottomPipe);
			obstacles.push(bottomPipe);
			// Gap
			var gap = new Gap();
			gap.x = 2200;
			gap.y = gapY + gapHeight / 2;
			gap.width = pipeWidth;
			gap.height = gapHeight;
			game.addChild(gap);
			gaps.push(gap);
			// Coin (place in the center of the gap)
			var coin = new Coin();
			coin.x = 2200;
			coin.y = gapY + gapHeight / 2;
			game.addChild(coin);
			if (!window.coins) window.coins = [];
			window.coins.push(coin);
		}
		// Update obstacles and gaps
		for (var i = obstacles.length - 1; i >= 0; i--) {
			var obs = obstacles[i];
			obs.update();
			// Remove if off screen
			if (obs.x < -300) {
				obs.destroy();
				obstacles.splice(i, 1);
			}
			// Collision
			if (player.intersects(obs)) {
				player.die();
				LK.effects.flashScreen(0xff0000, 800);
				LK.showGameOver();
				return;
			}
		}
		for (var j = gaps.length - 1; j >= 0; j--) {
			var gap = gaps[j];
			gap.update();
			// Remove if off screen
			if (gap.x < -300) {
				gap.destroy();
				gaps.splice(j, 1);
			}
			// Score
			if (!gap.passed && player.x > gap.x) {
				gap.passed = true;
				score++;
				scoreTxt.setText(score);
			}
		}
		// Coin update and collection
		if (!window.coins) window.coins = [];
		for (var c = window.coins.length - 1; c >= 0; c--) {
			var coin = window.coins[c];
			coin.update();
			// Remove if off screen
			if (coin.x < -300) {
				coin.destroy();
				window.coins.splice(c, 1);
				continue;
			}
			// Collect coin
			if (!coin.collected && player.intersects(coin)) {
				coin.collected = true;
				coin.destroy();
				window.coins.splice(c, 1);
				score++;
				scoreTxt.setText(score);
				LK.getSound('s').play();
				// Optionally: LK.effects.flashObject(player, 0xFFD700, 300);
			}
		}
		// Check ground/ceiling collision
		if (player.y > 2732 - 100 || player.y < 0) {
			player.die();
			LK.effects.flashScreen(0xff0000, 800);
			LK.showGameOver();
			return;
		}
	}
};
// --- Reset on Game Over ---
LK.on('gameover', function () {
	resetGame();
});