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

/**** 
* Classes
****/ 
var Basketball = Container.expand(function () {
	var self = Container.call(this);
	// Visual components
	var ball = self.attachAsset('basketball', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	var lines = self.attachAsset('basketballLines', {
		anchorX: 0.5,
		anchorY: 0.5,
		alpha: 0.3
	});
	// Physics properties
	self.velocityX = 0;
	self.velocityY = 0;
	self.gravity = 0.5;
	self.bounce = 0.7;
	self.isMoving = false;
	self.hasScored = false;
	// Initialize last positions for collision detection
	self.lastX = 0;
	self.lastY = 0;
	self.update = function () {
		if (self.isMoving) {
			// Store last position
			self.lastX = self.x;
			self.lastY = self.y;
			// Apply physics
			self.velocityY += self.gravity;
			self.x += self.velocityX;
			self.y += self.velocityY;
			// Rotate ball based on movement
			ball.rotation += self.velocityX * 0.02;
			// Check boundaries
			if (self.x < 40 || self.x > 2008) {
				self.velocityX *= -self.bounce;
				self.x = self.x < 40 ? 40 : 2008;
			}
			if (self.y > 2692) {
				self.y = 2692;
				self.velocityY *= -self.bounce;
				self.velocityX *= 0.9; // Friction
				if (Math.abs(self.velocityY) < 2) {
					self.isMoving = false;
					self.velocityX = 0;
					self.velocityY = 0;
				}
			}
		}
	};
	self.shoot = function (powerX, powerY) {
		self.velocityX = powerX;
		self.velocityY = powerY;
		self.isMoving = true;
		self.hasScored = false;
		LK.getSound('shoot').play();
	};
	self.reset = function () {
		self.x = 1024;
		self.y = 2400;
		self.velocityX = 0;
		self.velocityY = 0;
		self.isMoving = false;
		self.hasScored = false;
		ball.rotation = 0;
	};
	return self;
});
var Hoop = Container.expand(function () {
	var self = Container.call(this);
	// Backboard
	var backboard = self.attachAsset('backboard', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 100,
		y: 0
	});
	// Hoop rim
	var rim = self.attachAsset('hoop', {
		anchorX: 0.5,
		anchorY: 0.5,
		y: 50
	});
	// Net
	var net = self.attachAsset('net', {
		anchorX: 0.5,
		anchorY: 0,
		y: 70,
		alpha: 0.6
	});
	// Scoring zone (invisible)
	self.scoringZone = {
		x: -90,
		y: 45,
		width: 180,
		height: 30
	};
	self.checkScore = function (ball) {
		var ballInZone = ball.x >= self.x + self.scoringZone.x && ball.x <= self.x + self.scoringZone.x + self.scoringZone.width && ball.y >= self.y + self.scoringZone.y && ball.y <= self.y + self.scoringZone.y + self.scoringZone.height;
		// Check if ball is moving downward through the hoop
		if (ballInZone && ball.velocityY > 0 && ball.lastY < self.y + self.scoringZone.y && !ball.hasScored) {
			ball.hasScored = true;
			LK.getSound('score').play();
			// Animate net
			tween(net, {
				scaleY: 1.2
			}, {
				duration: 200,
				onFinish: function onFinish() {
					tween(net, {
						scaleY: 1
					}, {
						duration: 200
					});
				}
			});
			return true;
		}
		return false;
	};
	return self;
});

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

/**** 
* Game Code
****/ 
//Minimalistic tween library for animations
// Sounds
// Trajectory line
// Hoop assets
// Basketball assets
// Game variables
var basketball = null;
var hoop = null;
var isDragging = false;
var dragStartX = 0;
var dragStartY = 0;
var trajectoryDots = [];
var score = 0;
var scoreTxt = null;
// Initialize game elements
basketball = game.addChild(new Basketball());
basketball.reset();
hoop = game.addChild(new Hoop());
hoop.x = 1024;
hoop.y = 800;
// Score display
scoreTxt = new Text2('Score: 0', {
	size: 80,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
// Trajectory preview dots
for (var i = 0; i < 15; i++) {
	var dot = LK.getAsset('trajectoryDot', {
		anchorX: 0.5,
		anchorY: 0.5,
		alpha: 0
	});
	trajectoryDots.push(dot);
	game.addChild(dot);
}
function updateTrajectory(startX, startY, endX, endY) {
	var powerX = (endX - startX) * 28.8;
	var powerY = (endY - startY) * 28.8;
	for (var i = 0; i < trajectoryDots.length; i++) {
		var t = i * 2;
		var x = startX + powerX * t;
		var y = startY + powerY * t + 0.5 * 0.5 * t * t;
		trajectoryDots[i].x = x;
		trajectoryDots[i].y = y;
		trajectoryDots[i].alpha = isDragging ? Math.max(0, 1 - i * 0.07) : 0;
	}
}
function hideTrajectory() {
	for (var i = 0; i < trajectoryDots.length; i++) {
		trajectoryDots[i].alpha = 0;
	}
}
// Game input handling
game.down = function (x, y, obj) {
	if (!basketball.isMoving) {
		// Check if touch is near basketball
		var dx = x - basketball.x;
		var dy = y - basketball.y;
		var distance = Math.sqrt(dx * dx + dy * dy);
		if (distance < 100) {
			isDragging = true;
			dragStartX = x;
			dragStartY = y;
		}
	}
};
game.move = function (x, y, obj) {
	if (isDragging) {
		updateTrajectory(basketball.x, basketball.y, x, y);
	}
};
game.up = function (x, y, obj) {
	if (isDragging) {
		isDragging = false;
		hideTrajectory();
		// Calculate shooting power
		var powerX = (x - dragStartX) * 28.8;
		var powerY = (y - dragStartY) * 28.8;
		// Limit power
		var maxPower = 30;
		var power = Math.sqrt(powerX * powerX + powerY * powerY);
		if (power > maxPower) {
			powerX = powerX / power * maxPower;
			powerY = powerY / power * maxPower;
		}
		basketball.shoot(powerX, powerY);
	}
};
// Main game loop
game.update = function () {
	// Check for scoring
	if (basketball.isMoving && hoop.checkScore(basketball)) {
		score++;
		scoreTxt.setText('Score: ' + score);
		LK.setScore(score);
	}
	// Reset ball if it goes off screen or stops moving
	if (!basketball.isMoving && (basketball.y > 2500 || basketball.x < -100 || basketball.x > 2148)) {
		LK.setTimeout(function () {
			basketball.reset();
		}, 1000);
	}
	// Update trajectory preview
	if (isDragging) {
		// Trajectory is updated in move handler
	}
};

===================================================================
--- original.js
+++ change.js
@@ -177,10 +177,10 @@
 	trajectoryDots.push(dot);
 	game.addChild(dot);
 }
 function updateTrajectory(startX, startY, endX, endY) {
-	var powerX = (endX - startX) * 7.2;
-	var powerY = (endY - startY) * 7.2;
+	var powerX = (endX - startX) * 28.8;
+	var powerY = (endY - startY) * 28.8;
 	for (var i = 0; i < trajectoryDots.length; i++) {
 		var t = i * 2;
 		var x = startX + powerX * t;
 		var y = startY + powerY * t + 0.5 * 0.5 * t * t;
@@ -217,10 +217,10 @@
 	if (isDragging) {
 		isDragging = false;
 		hideTrajectory();
 		// Calculate shooting power
-		var powerX = (x - dragStartX) * 7.2;
-		var powerY = (y - dragStartY) * 7.2;
+		var powerX = (x - dragStartX) * 28.8;
+		var powerY = (y - dragStartY) * 28.8;
 		// Limit power
 		var maxPower = 30;
 		var power = Math.sqrt(powerX * powerX + powerY * powerY);
 		if (power > maxPower) {