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

/**** 
* Classes
****/ 
// Obstacle class: static obstacle (box or ellipse)
var Obstacle = Container.expand(function () {
	var self = Container.call(this);
	// Attach obstacle asset (ellipse shape)
	var obstacleGraphics = self.attachAsset('obstacle', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	return self;
});
// Platform class: static or moving platform
var Platform = Container.expand(function () {
	var self = Container.call(this);
	// Attach platform asset (box shape)
	var platformGraphics = self.attachAsset('platform', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Platform movement properties
	self.isMoving = false;
	self.moveDir = 1; // 1: right, -1: left
	self.moveRange = 0; // in px
	self.moveSpeed = 0; // px per frame
	self.startX = 0;
	// Called every tick
	self.update = function () {
		if (self.isMoving) {
			self.x += self.moveDir * self.moveSpeed;
			if (Math.abs(self.x - self.startX) > self.moveRange) {
				self.moveDir *= -1;
			}
		}
	};
	return self;
});
// Player class
var Player = Container.expand(function () {
	var self = Container.call(this);
	// Attach player asset (box shape)
	var playerGraphics = self.attachAsset('player', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Physics properties
	self.vx = 0;
	self.vy = 0;
	self.isOnGround = false;
	self.width = playerGraphics.width;
	self.height = playerGraphics.height;
	// Jump method
	self.jump = function () {
		if (self.isOnGround) {
			self.vy = -jumpStrength;
			self.isOnGround = false;
		}
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x222244
});

/**** 
* Game Code
****/ 
// --- Asset Initialization ---
// --- Game Constants ---
var GRAVITY = 2.2;
var MOVE_SPEED = 22;
var jumpStrength = 48;
var PLATFORM_MIN_WIDTH = 220;
var PLATFORM_MAX_WIDTH = 420;
var PLATFORM_HEIGHT = 40;
var PLATFORM_GAP_MIN = 220;
var PLATFORM_GAP_MAX = 420;
var PLATFORM_MOVE_CHANCE = 0.25;
var PLATFORM_MOVE_RANGE = 320;
var PLATFORM_MOVE_SPEED = 4;
var OBSTACLE_CHANCE = 0.25;
var OBSTACLE_SIZE = 80;
var PLAYER_START_X = 2048 / 2;
var PLAYER_START_Y = 2732 - 400;
var CAMERA_OFFSET = 900; // How far from bottom the player is kept
// --- Game State ---
var player;
var platforms = [];
var obstacles = [];
var maxHeight = 0; // Highest Y the player has reached (lower y = higher)
var dragStartX = null;
var dragStartY = null;
var dragLastX = null;
var dragLastY = null;
var isDragging = false;
var scoreTxt;
var lastPlatformY = 0;
var cameraY = 0;
var gameOver = false;
// --- Decorative White Dots ---
var whiteDots = [];
var WHITE_DOT_COUNT = 40; // Number of dots
// --- GUI ---
scoreTxt = new Text2('0', {
	size: 120,
	fill: "#fff"
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
// --- Helper Functions ---
// Generate a new platform at (x, y), optionally moving
function createPlatform(x, y, width, isMoving) {
	var plat = new Platform();
	plat.x = x;
	plat.y = y;
	plat.width = width;
	plat.height = PLATFORM_HEIGHT;
	plat.getChildAt(0).width = width;
	plat.getChildAt(0).height = PLATFORM_HEIGHT;
	plat.isMoving = isMoving;
	plat.moveRange = isMoving ? PLATFORM_MOVE_RANGE : 0;
	plat.moveSpeed = isMoving ? PLATFORM_MOVE_SPEED : 0;
	plat.startX = x;
	game.addChild(plat);
	platforms.push(plat);
	return plat;
}
// Generate a new obstacle on a platform
function createObstacle(x, y) {
	var obs = new Obstacle();
	obs.x = x;
	obs.y = y - OBSTACLE_SIZE / 2 - 10;
	obs.width = OBSTACLE_SIZE;
	obs.height = OBSTACLE_SIZE;
	obs.getChildAt(0).width = OBSTACLE_SIZE;
	obs.getChildAt(0).height = OBSTACLE_SIZE;
	game.addChild(obs);
	obstacles.push(obs);
	return obs;
}
// Remove platforms/obstacles below camera
function cleanupPlatformsObstacles() {
	for (var i = platforms.length - 1; i >= 0; i--) {
		if (platforms[i].y - cameraY > 2732 + 200) {
			platforms[i].destroy();
			platforms.splice(i, 1);
		}
	}
	for (var j = obstacles.length - 1; j >= 0; j--) {
		if (obstacles[j].y - cameraY > 2732 + 200) {
			obstacles[j].destroy();
			obstacles.splice(j, 1);
		}
	}
}
// Generate platforms up to a certain Y
function generatePlatformsUpTo(minY) {
	while (lastPlatformY > minY) {
		var gap = PLATFORM_GAP_MIN + Math.random() * (PLATFORM_GAP_MAX - PLATFORM_GAP_MIN);
		var platY = lastPlatformY - gap;
		var platWidth = PLATFORM_MIN_WIDTH + Math.random() * (PLATFORM_MAX_WIDTH - PLATFORM_MIN_WIDTH);
		var platX = platWidth / 2 + Math.random() * (2048 - platWidth);
		var isMoving = Math.random() < PLATFORM_MOVE_CHANCE;
		var plat = createPlatform(platX, platY, platWidth, isMoving);
		// Maybe add obstacle
		if (Math.random() < OBSTACLE_CHANCE && platWidth > 200 + OBSTACLE_SIZE) {
			var obsX = plat.x + (Math.random() - 0.5) * (platWidth - OBSTACLE_SIZE - 40);
			createObstacle(obsX, platY);
		}
		lastPlatformY = platY;
	}
}
// Reset game state
function resetGame() {
	// Remove old objects
	for (var i = 0; i < platforms.length; i++) platforms[i].destroy();
	for (var j = 0; j < obstacles.length; j++) obstacles[j].destroy();
	for (var d = 0; d < whiteDots.length; d++) whiteDots[d].destroy && whiteDots[d].destroy();
	platforms = [];
	obstacles = [];
	whiteDots = [];
	cameraY = 0;
	lastPlatformY = PLAYER_START_Y + 120;
	maxHeight = PLAYER_START_Y;
	LK.setScore(0);
	scoreTxt.setText('0');
	gameOver = false;
	// Reset background color to original
	game.setBackgroundColor(0x222244);
	// Create random white dots (decorative, do not affect gameplay)
	for (var i = 0; i < WHITE_DOT_COUNT; i++) {
		var dotSize = 8 + Math.random() * 22; // 8-30 px
		var dotX = 40 + Math.random() * (2048 - 80);
		var dotY = Math.random() * (2732 - 80);
		var dot = LK.getAsset('whiteDot', {
			width: dotSize,
			height: dotSize,
			color: 0xffffff,
			shape: 'ellipse',
			anchorX: 0.5,
			anchorY: 0.5,
			x: dotX,
			y: dotY
		});
		game.addChild(dot);
		whiteDots.push(dot);
	}
	// Create player
	if (player) player.destroy();
	player = new Player();
	player.x = PLAYER_START_X;
	player.y = PLAYER_START_Y;
	player.vx = 0;
	player.vy = 0;
	player.isOnGround = false;
	game.addChild(player);
	// Create starting platform
	createPlatform(PLAYER_START_X, PLAYER_START_Y + 80, 420, false);
	// Generate initial platforms
	generatePlatformsUpTo(PLAYER_START_Y - 2000);
}
// --- Input Handling ---
// Touch/drag to move player left/right, tap to jump
game.down = function (x, y, obj) {
	if (gameOver) return;
	dragStartX = x;
	dragStartY = y;
	dragLastX = x;
	dragLastY = y;
	isDragging = true;
};
game.move = function (x, y, obj) {
	if (gameOver) return;
	if (!isDragging) return;
	var dx = x - dragLastX;
	dragLastX = x;
	dragLastY = y;
	// Move player horizontally
	player.x += dx * 1.2;
	if (player.x < player.width / 2) player.x = player.width / 2;
	if (player.x > 2048 - player.width / 2) player.x = 2048 - player.width / 2;
};
game.up = function (x, y, obj) {
	if (gameOver) return;
	isDragging = false;
	// If tap (not drag), jump
	if (Math.abs(x - dragStartX) < 30 && Math.abs(y - dragStartY) < 30) {
		player.jump();
	}
};
// --- Main Game Loop ---
game.update = function () {
	if (gameOver) return;
	// --- Player Physics ---
	player.vy += GRAVITY;
	player.y += player.vy;
	player.x += player.vx;
	// Clamp player to screen
	if (player.x < player.width / 2) player.x = player.width / 2;
	if (player.x > 2048 - player.width / 2) player.x = 2048 - player.width / 2;
	// --- Platform Collision ---
	player.isOnGround = false;
	for (var i = 0; i < platforms.length; i++) {
		var plat = platforms[i];
		// Only check collision if falling
		if (player.vy >= 0) {
			var px = player.x;
			var py = player.y + player.height / 2;
			var platLeft = plat.x - plat.width / 2;
			var platRight = plat.x + plat.width / 2;
			var platTop = plat.y - plat.height / 2;
			var platBottom = plat.y + plat.height / 2;
			if (px > platLeft + 10 && px < platRight - 10 && py > platTop && py < platTop + 40 && player.y < plat.y) {
				// Landed on platform
				player.y = platTop - player.height / 2 + 1;
				player.vy = 0;
				player.isOnGround = true;
			}
		}
	}
	// --- Obstacle Collision ---
	for (var j = 0; j < obstacles.length; j++) {
		var obs = obstacles[j];
		// Simple circle-rect collision
		var dx = Math.abs(player.x - obs.x);
		var dy = Math.abs(player.y - obs.y);
		if (dx < player.width / 2 + OBSTACLE_SIZE / 2 - 10 && dy < player.height / 2 + OBSTACLE_SIZE / 2 - 10) {
			// Hit obstacle
			LK.effects.flashScreen(0xff0000, 800);
			gameOver = true;
			LK.showGameOver();
			return;
		}
	}
	// --- Fall Off Screen ---
	if (player.y - cameraY > 2732 + 100) {
		LK.effects.flashScreen(0xff0000, 800);
		gameOver = true;
		LK.showGameOver();
		return;
	}
	// --- Camera Follow ---
	if (player.y < maxHeight) {
		maxHeight = player.y;
		LK.setScore(Math.max(0, Math.floor((PLAYER_START_Y - maxHeight) / 10)));
		scoreTxt.setText(LK.getScore());
	}
	// --- Scene transitions and visuals ---
	// (No scene transitions in original endless climb version)
	var targetCameraY = player.y - (2732 - CAMERA_OFFSET);
	if (targetCameraY < cameraY) {
		cameraY = targetCameraY;
	}
	// Move all objects up by cameraY
	// Move all objects up by cameraY (endless climb illusion)
	for (var k = 0; k < platforms.length; k++) {
		// Move platform up by camera scroll delta
		platforms[k].y -= cameraY - (platforms[k].baseCameraY || 0);
		platforms[k].baseCameraY = cameraY;
		platforms[k].update();
	}
	for (var l = 0; l < obstacles.length; l++) {
		obstacles[l].y -= cameraY - (obstacles[l].baseCameraY || 0);
		obstacles[l].baseCameraY = cameraY;
	}
	player.y -= cameraY - (player.baseCameraY || 0);
	player.baseCameraY = cameraY;
	// Move white dots with camera (decorative, do not affect gameplay)
	for (var d = 0; d < whiteDots.length; d++) {
		var dot = whiteDots[d];
		dot.y -= cameraY - (dot.baseCameraY || 0);
		dot.baseCameraY = cameraY;
	}
	// --- Generate More Platforms ---
	generatePlatformsUpTo(cameraY - 1200);
	// --- Cleanup ---
	cleanupPlatformsObstacles();
};
// --- Game Over Handler (reset on restart) ---
LK.on('gameover', function () {
	resetGame();
});
// --- Start Game ---
resetGame();

===================================================================
--- original.js
+++ change.js
@@ -106,8 +106,11 @@
 var scoreTxt;
 var lastPlatformY = 0;
 var cameraY = 0;
 var gameOver = false;
+// --- Decorative White Dots ---
+var whiteDots = [];
+var WHITE_DOT_COUNT = 40; // Number of dots
 // --- GUI ---
 scoreTxt = new Text2('0', {
 	size: 120,
 	fill: "#fff"
@@ -181,18 +184,38 @@
 function resetGame() {
 	// Remove old objects
 	for (var i = 0; i < platforms.length; i++) platforms[i].destroy();
 	for (var j = 0; j < obstacles.length; j++) obstacles[j].destroy();
+	for (var d = 0; d < whiteDots.length; d++) whiteDots[d].destroy && whiteDots[d].destroy();
 	platforms = [];
 	obstacles = [];
+	whiteDots = [];
 	cameraY = 0;
 	lastPlatformY = PLAYER_START_Y + 120;
 	maxHeight = PLAYER_START_Y;
 	LK.setScore(0);
 	scoreTxt.setText('0');
 	gameOver = false;
 	// Reset background color to original
 	game.setBackgroundColor(0x222244);
+	// Create random white dots (decorative, do not affect gameplay)
+	for (var i = 0; i < WHITE_DOT_COUNT; i++) {
+		var dotSize = 8 + Math.random() * 22; // 8-30 px
+		var dotX = 40 + Math.random() * (2048 - 80);
+		var dotY = Math.random() * (2732 - 80);
+		var dot = LK.getAsset('whiteDot', {
+			width: dotSize,
+			height: dotSize,
+			color: 0xffffff,
+			shape: 'ellipse',
+			anchorX: 0.5,
+			anchorY: 0.5,
+			x: dotX,
+			y: dotY
+		});
+		game.addChild(dot);
+		whiteDots.push(dot);
+	}
 	// Create player
 	if (player) player.destroy();
 	player = new Player();
 	player.x = PLAYER_START_X;
@@ -311,8 +334,14 @@
 		obstacles[l].baseCameraY = cameraY;
 	}
 	player.y -= cameraY - (player.baseCameraY || 0);
 	player.baseCameraY = cameraY;
+	// Move white dots with camera (decorative, do not affect gameplay)
+	for (var d = 0; d < whiteDots.length; d++) {
+		var dot = whiteDots[d];
+		dot.y -= cameraY - (dot.baseCameraY || 0);
+		dot.baseCameraY = cameraY;
+	}
 	// --- Generate More Platforms ---
 	generatePlatformsUpTo(cameraY - 1200);
 	// --- Cleanup ---
 	cleanupPlatformsObstacles();