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

/**** 
* Classes
****/ 
// Bullet class
var Bullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletAsset = self.attachAsset('tapfx', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 0.5,
		scaleY: 0.5,
		alpha: 0.9
	});
	self.speed = 48; // Fast bullet for tap feel
	self.dirX = 0;
	self.dirY = 0;
	self.lifetime = 30; // frames
	self.age = 0;
	self.update = function () {
		self.x += self.dirX * self.speed;
		self.y += self.dirY * self.speed;
		self.age++;
		if (self.age > self.lifetime) {
			self.destroy();
		}
	};
	return self;
});
// Target class
var Target = Container.expand(function () {
	var self = Container.call(this);
	var targetAsset = self.attachAsset('target', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.radius = targetAsset.width / 2;
	self.active = true;
	self.appearedAt = LK.ticks;
	self.lifetime = 90; // 1.5 seconds at 60fps
	// Show tap feedback
	self.showTapFx = function () {
		var fx = LK.getAsset('tapfx', {
			anchorX: 0.5,
			anchorY: 0.5,
			x: 0,
			y: 0,
			scaleX: 1,
			scaleY: 1,
			alpha: 0.7
		});
		self.addChild(fx);
		tween(fx, {
			scaleX: 1.5,
			scaleY: 1.5,
			alpha: 0
		}, {
			duration: 250,
			easing: tween.easeOut,
			onFinish: function onFinish() {
				fx.destroy();
			}
		});
	};
	// Called when target is hit
	self.hit = function () {
		if (!self.active) return;
		self.active = false;
		self.showTapFx();
		tween(targetAsset, {
			alpha: 0
		}, {
			duration: 120,
			onFinish: function onFinish() {
				self.destroy();
			}
		});
	};
	// Called when target times out (missed)
	self.miss = function () {
		if (!self.active) return;
		self.active = false;
		var missFx = LK.getAsset('miss', {
			anchorX: 0.5,
			anchorY: 0.5,
			x: 0,
			y: 0,
			alpha: 0.5,
			scaleX: 1,
			scaleY: 1
		});
		self.addChild(missFx);
		tween(missFx, {
			scaleX: 1.5,
			scaleY: 1.5,
			alpha: 0
		}, {
			duration: 300,
			onFinish: function onFinish() {
				missFx.destroy();
			}
		});
		tween(targetAsset, {
			alpha: 0.2
		}, {
			duration: 180,
			onFinish: function onFinish() {
				self.destroy();
			}
		});
	};
	// Per-frame update
	self.update = function () {
		if (!self.active) return;
		if (LK.ticks - self.appearedAt > self.lifetime) {
			self.miss();
			// Penalize time for miss
			timeLeft -= 1.5;
			if (timeLeft < 0) timeLeft = 0;
		}
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x181c22
});

/**** 
* Game Code
****/ 
// Tap effect: yellow ellipse, 180x180
// Miss feedback: red ellipse, 180x180
// Target: green ellipse, 180x180
// Game state variables
var score = 0;
var timeLeft = 20; // seconds
var target = null;
var bullets = [];
var scoreTxt = new Text2('0', {
	size: 120,
	fill: '#fff'
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
var timerTxt = new Text2('20.0', {
	size: 90,
	fill: '#fff'
});
timerTxt.anchor.set(0.5, 0);
LK.gui.topRight.addChild(timerTxt);
// Prevent UI overlap with top left menu (100x100)
scoreTxt.y = 20;
timerTxt.y = 20;
// Spawn a new target at a random position
function spawnTarget() {
	if (target && target.active) target.miss();
	var t = new Target();
	// Avoid top 200px and bottom 200px for UI and finger comfort
	var margin = 200;
	var x = margin + Math.random() * (2048 - 2 * margin);
	var y = margin + Math.random() * (2732 - 2 * margin);
	t.x = x;
	t.y = y;
	target = t;
	game.addChild(t);
}
// Handle tap/clicks
game.down = function (x, y, obj) {
	// Only allow taps if game is running and target is active
	if (!target || !target.active || timeLeft <= 0) return;
	// Fire a bullet towards tap location
	var bullet = new Bullet();
	bullet.x = 1024; // center of screen (2048/2)
	bullet.y = 1366; // center of screen (2732/2)
	var distX = x - bullet.x;
	var distY = y - bullet.y;
	var dist = Math.sqrt(distX * distX + distY * distY);
	if (dist > 0) {
		bullet.dirX = distX / dist;
		bullet.dirY = distY / dist;
	}
	bullets.push(bullet);
	game.addChild(bullet);
	// Check if tap is inside target
	var dx = x - target.x;
	var dy = y - target.y;
	if (dx * dx + dy * dy <= target.radius * target.radius) {
		// Hit!
		target.hit();
		score += 1;
		scoreTxt.setText(score);
		// Add 1.2s for quick hit, 0.8s for slow
		var hitTime = (LK.ticks - target.appearedAt) / 60;
		if (hitTime < 0.7) {
			timeLeft += 1.2;
		} else {
			timeLeft += 0.8;
		}
		if (timeLeft > 30) timeLeft = 30; // Cap max time
		spawnTarget();
	} else {
		// Missed tap: penalize
		timeLeft -= 1.2;
		if (timeLeft < 0) timeLeft = 0;
		// Show quick miss feedback at tap
		var missFx = LK.getAsset('miss', {
			anchorX: 0.5,
			anchorY: 0.5,
			x: x,
			y: y,
			alpha: 0.4,
			scaleX: 1,
			scaleY: 1
		});
		game.addChild(missFx);
		tween(missFx, {
			scaleX: 1.5,
			scaleY: 1.5,
			alpha: 0
		}, {
			duration: 250,
			onFinish: function onFinish() {
				missFx.destroy();
			}
		});
	}
};
// Main update loop
game.update = function () {
	// Update timer
	if (timeLeft > 0) {
		timeLeft -= 1 / 60;
		if (timeLeft < 0) timeLeft = 0;
	}
	timerTxt.setText(timeLeft.toFixed(1));
	// End game if time runs out
	if (timeLeft <= 0) {
		if (target && target.active) target.miss();
		LK.setScore(score);
		LK.showGameOver();
		return;
	}
	// Spawn first target if needed
	if (!target || !target.active) {
		spawnTarget();
	}
	// Update and clean up bullets
	for (var i = bullets.length - 1; i >= 0; i--) {
		var b = bullets[i];
		if (b.destroyed) {
			bullets.splice(i, 1);
		}
	}
};
// Reset game state on restart
game.on('reset', function () {
	score = 0;
	timeLeft = 20;
	scoreTxt.setText(score);
	timerTxt.setText(timeLeft.toFixed(1));
	if (target) {
		target.destroy();
		target = null;
	}
});
/**** 
* End of file
****/ 

===================================================================
--- original.js
+++ change.js
@@ -5,8 +5,33 @@
 
 /**** 
 * Classes
 ****/ 
+// Bullet class
+var Bullet = Container.expand(function () {
+	var self = Container.call(this);
+	var bulletAsset = self.attachAsset('tapfx', {
+		anchorX: 0.5,
+		anchorY: 0.5,
+		scaleX: 0.5,
+		scaleY: 0.5,
+		alpha: 0.9
+	});
+	self.speed = 48; // Fast bullet for tap feel
+	self.dirX = 0;
+	self.dirY = 0;
+	self.lifetime = 30; // frames
+	self.age = 0;
+	self.update = function () {
+		self.x += self.dirX * self.speed;
+		self.y += self.dirY * self.speed;
+		self.age++;
+		if (self.age > self.lifetime) {
+			self.destroy();
+		}
+	};
+	return self;
+});
 // Target class
 var Target = Container.expand(function () {
 	var self = Container.call(this);
 	var targetAsset = self.attachAsset('target', {
@@ -117,8 +142,9 @@
 // Game state variables
 var score = 0;
 var timeLeft = 20; // seconds
 var target = null;
+var bullets = [];
 var scoreTxt = new Text2('0', {
 	size: 120,
 	fill: '#fff'
 });
@@ -149,8 +175,21 @@
 // Handle tap/clicks
 game.down = function (x, y, obj) {
 	// Only allow taps if game is running and target is active
 	if (!target || !target.active || timeLeft <= 0) return;
+	// Fire a bullet towards tap location
+	var bullet = new Bullet();
+	bullet.x = 1024; // center of screen (2048/2)
+	bullet.y = 1366; // center of screen (2732/2)
+	var distX = x - bullet.x;
+	var distY = y - bullet.y;
+	var dist = Math.sqrt(distX * distX + distY * distY);
+	if (dist > 0) {
+		bullet.dirX = distX / dist;
+		bullet.dirY = distY / dist;
+	}
+	bullets.push(bullet);
+	game.addChild(bullet);
 	// Check if tap is inside target
 	var dx = x - target.x;
 	var dy = y - target.y;
 	if (dx * dx + dy * dy <= target.radius * target.radius) {
@@ -212,8 +251,15 @@
 	// Spawn first target if needed
 	if (!target || !target.active) {
 		spawnTarget();
 	}
+	// Update and clean up bullets
+	for (var i = bullets.length - 1; i >= 0; i--) {
+		var b = bullets[i];
+		if (b.destroyed) {
+			bullets.splice(i, 1);
+		}
+	}
 };
 // Reset game state on restart
 game.on('reset', function () {
 	score = 0;