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

/**** 
* Classes
****/ 
var Target = Container.expand(function () {
	var self = Container.call(this);
	var targetGraphics = self.attachAsset('target', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Target lifespan is 1.5 seconds
	self.lifespan = 1500;
	self.spawnTime = Date.now();
	self.isActive = true;
	// Visual feedback on spawn
	targetGraphics.alpha = 0;
	tween(targetGraphics, {
		alpha: 1
	}, {
		duration: 200
	});
	// Auto-destroy after 2 seconds
	self.destroyTimer = LK.setTimeout(function () {
		if (self.isActive) {
			self.fadeOut();
		}
	}, self.lifespan);
	self.fadeOut = function () {
		if (!self.isActive) return;
		self.isActive = false;
		tween(targetGraphics, {
			alpha: 0
		}, {
			duration: 300,
			onFinish: function onFinish() {
				self.destroy();
				// Remove from targets array
				for (var i = targets.length - 1; i >= 0; i--) {
					if (targets[i] === self) {
						targets.splice(i, 1);
						break;
					}
				}
				// Spawn new target immediately when one disappears
				spawnTarget();
			}
		});
	};
	// Handle tap
	self.down = function (x, y, obj) {
		if (!self.isActive) return;
		// Score point
		LK.setScore(LK.getScore() + 1);
		scoreTxt.setText(LK.getScore());
		// Play sound
		LK.getSound('pop').play();
		// Visual feedback
		tween(targetGraphics, {
			scaleX: 1.3,
			scaleY: 1.3
		}, {
			duration: 100,
			easing: tween.easeOut
		});
		// Remove target
		self.isActive = false;
		LK.clearTimeout(self.destroyTimer);
		tween(targetGraphics, {
			alpha: 0,
			scaleX: 0.8,
			scaleY: 0.8
		}, {
			duration: 200,
			onFinish: function onFinish() {
				self.destroy();
				// Remove from targets array
				for (var i = targets.length - 1; i >= 0; i--) {
					if (targets[i] === self) {
						targets.splice(i, 1);
						break;
					}
				}
				// Spawn new target immediately when tapped
				spawnTarget();
			}
		});
	};
	self.update = function () {
		if (!self.isActive) return;
		// Fade out effect as time runs out
		var timeLeft = self.lifespan - (Date.now() - self.spawnTime);
		if (timeLeft < 500) {
			var fadeRatio = timeLeft / 500;
			targetGraphics.alpha = Math.max(0.3, fadeRatio);
		}
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x2E3440
});

/**** 
* Game Code
****/ 
// Add background
var background = game.attachAsset('background', {
	anchorX: 0,
	anchorY: 0,
	x: 0,
	y: 0
});
// Game variables
var targets = [];
var spawnTimer = 0;
var baseSpawnRate = 120; // Spawn every 2 seconds at 60fps
var minSpawnRate = 30; // Minimum spawn interval (0.5 seconds)
var spawnRateDecrease = 2; // How much to decrease spawn rate over time
// Get high score from storage
var highScore = storage.highScore || 0;
// Score display
var scoreTxt = new Text2('0', {
	size: 120,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
// Position score text slightly down from top
scoreTxt.y = 50;
// High score display
var highScoreTxt = new Text2('Best: ' + highScore, {
	size: 80,
	fill: 0xFFD700
});
highScoreTxt.anchor.set(1, 0);
LK.gui.topRight.addChild(highScoreTxt);
highScoreTxt.x = -20;
highScoreTxt.y = 50;
// Instructions text
var instructionTxt = new Text2('Tap the circles before they disappear!', {
	size: 60,
	fill: 0xFFFFFF
});
instructionTxt.anchor.set(0.5, 0.5);
instructionTxt.x = 2048 / 2;
instructionTxt.y = 2732 - 200;
game.addChild(instructionTxt);
// Fade out instructions after a few seconds
LK.setTimeout(function () {
	tween(instructionTxt, {
		alpha: 0
	}, {
		duration: 1000
	});
}, 3000);
function spawnTarget() {
	// Only spawn if no targets exist (one at a time)
	if (targets.length > 0) return;
	var target = new Target();
	// Random position within safe bounds
	var margin = 100;
	target.x = margin + Math.random() * (2048 - 2 * margin);
	target.y = margin + Math.random() * (2732 - 2 * margin);
	targets.push(target);
	game.addChild(target);
}
// Spawn the first target
spawnTarget();
game.update = function () {
	// Update score display
	scoreTxt.setText(LK.getScore());
	// Check and update high score
	var currentScore = LK.getScore();
	if (currentScore > highScore) {
		highScore = currentScore;
		storage.highScore = highScore;
		highScoreTxt.setText('Best: ' + highScore);
	}
};