/**** 
* Classes
****/
// Define the Hero class
var Hero = Container.expand(function () {
	var self = Container.call(this);
	var heroBlue = self.createAsset('heroBlue', 'Hero character blue', 0.5, 0.5);
	var heroYellow = self.createAsset('heroYellow', 'Hero character yellow', 0.5, 0.5);
	heroBlue.visible = true;
	heroYellow.visible = false;
	// Toggle hero color
	self.toggleColor = function () {
		heroBlue.visible = !heroBlue.visible;
		heroYellow.visible = !heroYellow.visible;
	};
	self.speedY = 0;
	// Hero is static in the center of the screen
	self.update = function () {};
});
// Define the Coin_Blue class
var Coin_Blue = Container.expand(function (x, y) {
	var self = Container.call(this);
	var coinGraphics = self.createAsset('coinBlue', 'Blue Coin', 0.5, 0.5);
	self.x = x;
	self.y = y;
	// Move the coin
	self.speed = 5;
	self.acceleration = 0.1;
	self.move = function () {
		var dx = game.width / 2 - self.x;
		var dy = game.height / 2 - self.y;
		var angle = Math.atan2(dy, dx);
		self.x += Math.cos(angle) * self.speed;
		self.y += Math.sin(angle) * self.speed;
		self.speed += self.acceleration;
	};
	// Check if the coin is off-screen
	self.isOffScreen = function () {
		return self.x < -coinGraphics.width;
	};
});
// Define the Coin_Yellow class
var Coin_Yellow = Container.expand(function (x, y) {
	var self = Container.call(this);
	var coinGraphics = self.createAsset('coinYellow', 'Yellow Coin', 0.5, 0.5);
	self.x = x;
	self.y = y;
	// Move the coin
	self.speed = 5;
	self.acceleration = 0.1;
	self.move = function () {
		var dx = game.width / 2 - self.x;
		var dy = game.height / 2 - self.y;
		var angle = Math.atan2(dy, dx);
		self.x += Math.cos(angle) * self.speed;
		self.y += Math.sin(angle) * self.speed;
		self.speed += self.acceleration;
	};
	// Check if the coin is off-screen
	self.isOffScreen = function () {
		return self.x < -coinGraphics.width;
	};
});

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

/**** 
* Game Code
****/
// Create and add a background image
var background = game.addChild(LK.getAsset('background', 'Game background', 0.5, 0.5));
background.x = game.width / 2;
background.y = game.height / 2;
background.width = game.width;
background.height = game.height;
// Create a new UI element at the bottom of the board
var messageTxt = new Text2('Balance is the path.', {
	size: 100,
	fill: "#ffffff"
});
messageTxt.anchor.set(0.5, 0.5);
messageTxt.x = 500;
messageTxt.y = 1500;
LK.gui.bottom.addChild(messageTxt);
// Initialize important asset arrays and game variables
var hero;
var obstacles = [];
var colors = [0xFF0000, 0x00FF00, 0x0000FF]; // Red, Green, Blue
var score = 0;
var scoreTxt;
var obstacleTimer = 0;
var gameOver = false;
// Create the hero and set initial color to blue
hero = game.addChild(new Hero());
hero.x = game.width / 2;
hero.y = game.height / 2;
// Create the score text
scoreTxt = new Text2('0', {
	size: 120,
	fill: "#ffffff",
	stroke: "#000000",
	strokeThickness: 10
});
scoreTxt.anchor.set(0.5, 0);
scoreTxt.y -= 80;
LK.gui.center.addChild(scoreTxt);
// Handle the tap event to toggle the hero's color
game.on('down', function (obj) {
	if (!gameOver) {
		hero.toggleColor();
	}
});
// Game tick event
LK.on('tick', function () {
	if (!gameOver) {
		// Update the hero
		hero.update();
		var spawnPoints = [{
			x: 0,
			y: 0
		}, {
			x: game.width,
			y: 0
		}, {
			x: 0,
			y: game.height
		}, {
			x: game.width,
			y: game.height
		}];
		// Add a new coin every 60 frames (1 second)
		obstacleTimer++;
		if (obstacleTimer >= Math.max(40, 100 - score)) {
			obstacleTimer = 0;
			// If all spawn points have been used, replenish them
			if (spawnPoints.length === 0) {
				spawnPoints = [{
					x: 0,
					y: 0
				}, {
					x: game.width,
					y: 0
				}, {
					x: 0,
					y: game.height
				}, {
					x: game.width,
					y: game.height
				}];
			}
			// Select a random spawn point and remove it from the array
			var spawnIndex = Math.floor(Math.random() * spawnPoints.length);
			var spawnPoint = spawnPoints[spawnIndex];
			spawnPoints.splice(spawnIndex, 1);
			// Generate a random coin type
			var coinType = Math.random() < 0.5 ? Coin_Blue : Coin_Yellow;
			// Spawn the coin at the selected spawn point
			var coin = new coinType(spawnPoint.x, spawnPoint.y);
			obstacles.push(coin);
			game.addChild(coin);
		}
		// Update coins
		for (var i = obstacles.length - 1; i >= 0; i--) {
			obstacles[i].move();
			// Check for collision
			if (hero.intersects(obstacles[i])) {
				if (obstacles[i] instanceof Coin_Blue && hero.children[0].visible || obstacles[i] instanceof Coin_Yellow && hero.children[1].visible) {
					// Increment score when correct coin is collected
					score++;
					scoreTxt.setText(score.toString());
					// Add animation to score text
					scoreTxt.anchor.set(0.5, 0.1);
					scoreTxt.scale.set(1.25, 1.25);
					LK.setTimeout(function () {
						scoreTxt.scale.set(1, 1);
						scoreTxt.anchor.set(0.5, 0.1);
					}, 100);
					obstacles[i].destroy();
					obstacles.splice(i, 1);
				} else {
					gameOver = true;
					LK.effects.flashScreen(0xff0000, 1000);
					LK.showGameOver();
				}
			}
			// Remove off-screen coins
			if (obstacles[i] && obstacles[i].isOffScreen()) {
				obstacles[i].destroy();
				obstacles.splice(i, 1);
			}
		}
	}
});