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

/**** 
* Classes
****/ 
var Collectible = Container.expand(function (isLightWorld) {
	var self = Container.call(this);
	self.isLightWorld = isLightWorld;
	var collectibleGraphics = self.attachAsset(isLightWorld ? 'lightCollectible' : 'darkCollectible', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = -8;
	self.collected = false;
	self.update = function () {
		self.x += self.speed;
		collectibleGraphics.rotation += 0.1;
	};
	return self;
});
var Obstacle = Container.expand(function (isLightWorld) {
	var self = Container.call(this);
	self.isLightWorld = isLightWorld;
	var obstacleGraphics = self.attachAsset(isLightWorld ? 'lightObstacle' : 'darkObstacle', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = -8;
	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: 0.5
	});
	self.verticalSpeed = 0;
	self.gravity = 0.5;
	self.jumpPower = -12;
	self.isGrounded = false;
	return self;
});

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

/**** 
* Game Code
****/ 
var isLightWorld = true;
var player = null;
var obstacles = [];
var collectibles = [];
var gameSpeed = 8;
var spawnTimer = 0;
var groundY = 2200;
var lastSpawnX = 2200;
var scoreTxt = new Text2('Score: 0', {
	size: 80,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
var worldIndicator = new Text2('Light World', {
	size: 60,
	fill: 0xFFD700
});
worldIndicator.anchor.set(0.5, 1);
LK.gui.bottom.addChild(worldIndicator);
function updateWorldVisuals() {
	if (isLightWorld) {
		game.setBackgroundColor(0x87CEEB);
		worldIndicator.setText('Light World');
		worldIndicator.style.fill = "#FFD700";
	} else {
		game.setBackgroundColor(0x2C1810);
		worldIndicator.setText('Dark World');
		worldIndicator.style.fill = "#9C27B0";
	}
	tween(game, {}, {
		duration: 200,
		onFinish: function onFinish() {
			for (var i = 0; i < obstacles.length; i++) {
				var obstacle = obstacles[i];
				obstacle.alpha = obstacle.isLightWorld === isLightWorld ? 1 : 0.3;
			}
			for (var j = 0; j < collectibles.length; j++) {
				var collectible = collectibles[j];
				collectible.alpha = collectible.isLightWorld === isLightWorld ? 1 : 0.3;
			}
		}
	});
}
function spawnObstacle() {
	var worldType = Math.random() < 0.5;
	var obstacle = new Obstacle(worldType);
	obstacle.x = 2200;
	obstacle.y = groundY - 50;
	obstacle.alpha = obstacle.isLightWorld === isLightWorld ? 1 : 0.3;
	obstacles.push(obstacle);
	game.addChild(obstacle);
}
function spawnCollectible() {
	var worldType = Math.random() < 0.5;
	var collectible = new Collectible(worldType);
	collectible.x = 2200;
	collectible.y = groundY - Math.random() * 300 - 100;
	collectible.alpha = collectible.isLightWorld === isLightWorld ? 1 : 0.3;
	collectibles.push(collectible);
	game.addChild(collectible);
}
player = game.addChild(new Player());
player.x = 400;
player.y = groundY - 40;
updateWorldVisuals();
game.down = function (x, y, obj) {
	isLightWorld = !isLightWorld;
	updateWorldVisuals();
	LK.getSound('flip').play();
	if (player.isGrounded) {
		player.verticalSpeed = player.jumpPower;
		player.isGrounded = false;
	}
};
game.update = function () {
	if (!player) return;
	player.verticalSpeed += player.gravity;
	player.y += player.verticalSpeed;
	if (player.y >= groundY - 40) {
		player.y = groundY - 40;
		player.verticalSpeed = 0;
		player.isGrounded = true;
	}
	spawnTimer += 1;
	gameSpeed = Math.min(12, 8 + LK.getScore() / 100);
	if (spawnTimer % Math.max(60, 120 - LK.getScore()) === 0) {
		if (Math.random() < 0.7) {
			spawnObstacle();
		} else {
			spawnCollectible();
		}
	}
	for (var i = obstacles.length - 1; i >= 0; i--) {
		var obstacle = obstacles[i];
		obstacle.speed = -gameSpeed;
		if (obstacle.x < -100) {
			obstacle.destroy();
			obstacles.splice(i, 1);
			continue;
		}
		if (obstacle.isLightWorld === isLightWorld && player.intersects(obstacle)) {
			LK.getSound('hit').play();
			LK.effects.flashScreen(0xff0000, 1000);
			LK.showGameOver();
			return;
		}
	}
	for (var j = collectibles.length - 1; j >= 0; j--) {
		var collectible = collectibles[j];
		collectible.speed = -gameSpeed;
		if (collectible.x < -100) {
			collectible.destroy();
			collectibles.splice(j, 1);
			continue;
		}
		if (!collectible.collected && collectible.isLightWorld === isLightWorld && player.intersects(collectible)) {
			collectible.collected = true;
			LK.setScore(LK.getScore() + 10);
			scoreTxt.setText('Score: ' + LK.getScore());
			LK.getSound('collect').play();
			tween(collectible, {
				alpha: 0,
				scaleX: 2,
				scaleY: 2
			}, {
				duration: 300,
				onFinish: function onFinish() {
					collectible.destroy();
				}
			});
			collectibles.splice(j, 1);
		}
	}
};