===================================================================
--- original.js
+++ change.js
@@ -1,124 +1,76 @@
 /**** 
-* Classes
-****/ 
-//var tween = LK.import("@upit/tween.v1");
-var Obstacle = Container.expand(function () {
-	var self = Container.call(this);
-	var obstacleGraphics = self.attachAsset('obstacle', {
-		anchorX: 0.5,
-		anchorY: 1.0
-	});
-	self.speed = -8;
-	self.update = function () {
-		self.x += self.speed;
-	};
-	return self;
-});
-var Orb = Container.expand(function () {
-	var self = Container.call(this);
-	var orbGraphics = self.attachAsset('orb', {
-		anchorX: 0.5,
-		anchorY: 0.5
-	});
-	self.velocityY = 0;
-	self.gravity = 0.8;
-	self.jumpPower = -15;
-	self.groundY = 2632 - 50; // Ground level - adjusted for lower starting position
-	self.isGrounded = false;
-	self.update = function () {
-		// Apply gravity
-		self.velocityY += self.gravity;
-		self.y += self.velocityY;
-		// Ground collision
-		if (self.y >= self.groundY) {
-			self.y = self.groundY;
-			self.velocityY = 0;
-			self.isGrounded = true;
-		} else {
-			self.isGrounded = false;
-		}
-	};
-	self.jump = function () {
-		if (self.isGrounded || self.y > self.groundY - 20) {
-			self.velocityY = self.jumpPower;
-			self.isGrounded = false;
-		}
-	};
-	return self;
-});
-
-/**** 
 * Initialize Game
 ****/ 
 var game = new LK.Game({
-	backgroundColor: 0x111122
+	backgroundColor: 0x000000
 });
 
 /**** 
 * Game Code
 ****/ 
-// Game variables
-var orb;
-var obstacles = [];
-var obstacleSpawnTimer = 0;
-var obstacleSpawnInterval = 90; // 1.5 seconds at 60fps
-var scoreTimer = 0;
-var ground;
-// Create ground
-ground = game.addChild(LK.getAsset('ground', {
-	anchorX: 0,
-	anchorY: 1.0,
-	x: 0,
-	y: 2732
-}));
-// Create orb
-orb = game.addChild(new Orb());
-orb.x = 300;
-orb.y = 2632 - 50; // Start lower, closer to ground
-// Create score display
-var scoreTxt = new Text2('0', {
-	size: 120,
-	fill: 0x00FFFF
+// No classes needed for physics-based implementation
+// No assets needed for physics-based implementation
+LK.init({
+	size: [720, 1280],
+	gravity: [0, 2500],
+	backgroundColor: 0x111111
 });
-scoreTxt.anchor.set(0.5, 0);
-LK.gui.top.addChild(scoreTxt);
-// Touch/tap controls
-game.down = function (x, y, obj) {
-	orb.jump();
-};
-// Main game loop
-game.update = function () {
-	// Update score every second
-	scoreTimer++;
-	if (scoreTimer >= 60) {
-		LK.setScore(LK.getScore() + 1);
-		scoreTxt.setText(LK.getScore());
-		scoreTimer = 0;
+// Ground
+var ground = LK.add.shape({
+	shape: "box",
+	width: 720,
+	height: 40,
+	x: 360,
+	y: 1260,
+	physics: "static",
+	color: 0x333333
+});
+var orb = LK.add.shape({
+	shape: "circle",
+	radius: 50,
+	x: 360,
+	y: 1200,
+	color: 0x00ffff,
+	physics: "dynamic",
+	restitution: 0,
+	friction: 0.5
+});
+function jump() {
+	if (orb.y > 1150) {
+		orb.setVelocity(0, -700);
 	}
-	// Spawn obstacles
-	obstacleSpawnTimer++;
-	if (obstacleSpawnTimer >= obstacleSpawnInterval) {
-		var newObstacle = new Obstacle();
-		newObstacle.x = 2048 + 30; // Start off screen right
-		newObstacle.y = 2632 - 120; // Fixed height near ground level
-		obstacles.push(newObstacle);
-		game.addChild(newObstacle);
-		obstacleSpawnTimer = 0;
-	}
-	// Update and check obstacles
-	for (var i = obstacles.length - 1; i >= 0; i--) {
-		var obstacle = obstacles[i];
-		// Remove off-screen obstacles
-		if (obstacle.x < -100) {
-			obstacle.destroy();
-			obstacles.splice(i, 1);
-			continue;
-		}
-		// Check collision with orb
-		if (orb.intersects(obstacle)) {
-			// Game over
-			LK.showGameOver();
-			return;
-		}
-	}
-};
\ No newline at end of file
+}
+LK.onKeyDown("space", jump);
+LK.onPointerDown(jump);
+function spawnObstacle() {
+	var obs = LK.add.shape({
+		shape: "box",
+		width: 100,
+		height: 30,
+		x: 800,
+		y: 1210,
+		color: 0xff4444,
+		physics: "kinematic"
+	});
+	obs.setVelocity(-250, 0);
+	LK.onCollide(orb, obs, function () {
+		return LK.scene.restart();
+	});
+	LK.wait(6, function () {
+		return obs.destroy();
+	});
+}
+LK.every(1.5, spawnObstacle);
+var score = 0;
+var scoreText = LK.add.text({
+	text: "Skor: 0",
+	size: 45,
+	x: 30,
+	y: 60,
+	anchorX: "left",
+	color: 0xffffff
+});
+LK.every(1, function () {
+	score++;
+	scoreText.text = "Skor: " + score;
+});
\ No newline at end of file