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

/**** 
* Classes
****/ 
var Platform = Container.expand(function (x, y) {
	var self = Container.call(this);
	var platformGraphics = self.attachAsset('platform', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.x = x;
	self.y = y;
	return self;
});
var Player = Container.expand(function () {
	var self = Container.call(this);
	var playerGraphics = self.attachAsset('player', {
		anchorX: 0.5,
		anchorY: 1.0
	});
	self.velocityY = 0;
	self.gravity = 0.8;
	self.jumpPower = 0;
	self.isOnGround = false;
	self.isCharging = false;
	self.maxJumpPower = 35;
	self.update = function () {
		// Apply gravity
		if (!self.isOnGround) {
			self.velocityY += self.gravity;
		}
		// Update position
		self.y += self.velocityY;
		// Check platform collisions
		self.checkPlatformCollisions();
		// Check if fallen off screen
		if (self.y > 2732 + 100) {
			LK.showGameOver();
		}
	};
	self.checkPlatformCollisions = function () {
		var wasOnGround = self.isOnGround;
		self.isOnGround = false;
		for (var i = 0; i < platforms.length; i++) {
			var platform = platforms[i];
			if (self.intersects(platform) && self.velocityY >= 0) {
				var playerBottom = self.y;
				var platformTop = platform.y - platform.height / 2;
				if (playerBottom >= platformTop - 20 && playerBottom <= platformTop + 20) {
					self.y = platformTop;
					self.velocityY = 0;
					self.isOnGround = true;
					if (!wasOnGround) {
						LK.getSound('land').play();
						// Score point for landing on platform
						if (platform.scored === undefined) {
							platform.scored = true;
							LK.setScore(LK.getScore() + 1);
							scoreTxt.setText(LK.getScore());
						}
					}
					break;
				}
			}
		}
	};
	self.startJump = function () {
		if (self.isOnGround) {
			self.isCharging = true;
			self.jumpPower = 0;
		}
	};
	self.chargeJump = function () {
		if (self.isCharging && self.jumpPower < self.maxJumpPower) {
			self.jumpPower += 0.8;
		}
	};
	self.executeJump = function () {
		if (self.isCharging && self.isOnGround) {
			self.velocityY = -self.jumpPower;
			self.isOnGround = false;
			self.isCharging = false;
			LK.getSound('jump').play();
		}
	};
	return self;
});

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

/**** 
* Game Code
****/ 
var player;
var platforms = [];
var scoreTxt;
// Create score display
scoreTxt = new Text2('0', {
	size: 100,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
scoreTxt.y = 50;
// Create player
player = game.addChild(new Player());
player.x = 1024;
player.y = 2500;
// Create initial platforms
function createPlatform(x, y) {
	var platform = new Platform(x, y);
	platforms.push(platform);
	game.addChild(platform);
	return platform;
}
// Starting platform
createPlatform(1024, 2600);
// Generate platforms going upward
for (var i = 0; i < 20; i++) {
	var x = Math.random() * 1600 + 224; // Random X between 224 and 1824
	var y = 2400 - i * 200 + (Math.random() * 100 - 50); // Going upward with some variation
	createPlatform(x, y);
}
// Camera following
var cameraY = 0;
game.down = function (x, y, obj) {
	if (player.isOnGround) {
		player.velocityY = -player.maxJumpPower;
		player.isOnGround = false;
		LK.getSound('jump').play();
	}
};
game.update = function () {
	// Update camera to follow player
	var targetCameraY = player.y - 1800;
	if (targetCameraY < cameraY) {
		cameraY += (targetCameraY - cameraY) * 0.1;
		game.y = -cameraY;
	}
	// Generate new platforms as player goes higher
	var highestPlatform = Math.min.apply(Math, platforms.map(function (p) {
		return p.y;
	}));
	if (player.y < highestPlatform + 1000) {
		for (var i = 0; i < 5; i++) {
			var x = Math.random() * 1600 + 224;
			var y = highestPlatform - 200 - i * 200 + (Math.random() * 100 - 50);
			createPlatform(x, y);
		}
	}
	// Clean up platforms that are too far below
	for (var i = platforms.length - 1; i >= 0; i--) {
		if (platforms[i].y > player.y + 1500) {
			platforms[i].destroy();
			platforms.splice(i, 1);
		}
	}
};

===================================================================
--- original.js
+++ change.js
@@ -102,9 +102,8 @@
 ****/ 
 var player;
 var platforms = [];
 var scoreTxt;
-var isJumpPressed = false;
 // Create score display
 scoreTxt = new Text2('0', {
 	size: 100,
 	fill: 0xFFFFFF
@@ -133,22 +132,15 @@
 }
 // Camera following
 var cameraY = 0;
 game.down = function (x, y, obj) {
-	isJumpPressed = true;
-	player.startJump();
-};
-game.up = function (x, y, obj) {
-	if (isJumpPressed) {
-		player.executeJump();
-		isJumpPressed = false;
+	if (player.isOnGround) {
+		player.velocityY = -player.maxJumpPower;
+		player.isOnGround = false;
+		LK.getSound('jump').play();
 	}
 };
 game.update = function () {
-	// Charge jump while pressed
-	if (isJumpPressed) {
-		player.chargeJump();
-	}
 	// Update camera to follow player
 	var targetCameraY = player.y - 1800;
 	if (targetCameraY < cameraY) {
 		cameraY += (targetCameraY - cameraY) * 0.1;