===================================================================
--- original.js
+++ change.js
@@ -1,6 +1,403 @@
-/****
+/**** 
+* Plugins
+****/ 
+var tween = LK.import("@upit/tween.v1");
+
+/**** 
+* Classes
+****/ 
+// Ball class
+var Ball = Container.expand(function () {
+	var self = Container.call(this);
+	self.ballSprite = self.attachAsset('football', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.width = self.ballSprite.width;
+	self.height = self.ballSprite.height;
+	self.vx = 0;
+	self.vy = 0;
+	self.friction = 0.98;
+	self.maxSpeed = 38;
+	self.update = function () {
+		// Move ball
+		self.x += self.vx;
+		self.y += self.vy;
+		// Friction
+		self.vx *= self.friction;
+		self.vy *= self.friction;
+		// Clamp speed
+		var speed = Math.sqrt(self.vx * self.vx + self.vy * self.vy);
+		if (speed > self.maxSpeed) {
+			self.vx *= self.maxSpeed / speed;
+			self.vy *= self.maxSpeed / speed;
+		}
+		// Bounce off walls
+		if (self.x < self.width / 2) {
+			self.x = self.width / 2;
+			self.vx = -self.vx * 0.7;
+		}
+		if (self.x > 2048 - self.width / 2) {
+			self.x = 2048 - self.width / 2;
+			self.vx = -self.vx * 0.7;
+		}
+		if (self.y < self.height / 2) {
+			self.y = self.height / 2;
+			self.vy = -self.vy * 0.7;
+		}
+		if (self.y > 2732 - self.height / 2) {
+			self.y = 2732 - self.height / 2;
+			self.vy = -self.vy * 0.7;
+		}
+	};
+	return self;
+});
+// Car class (for both player and AI)
+var Car = Container.expand(function () {
+	var self = Container.call(this);
+	// Attach car asset (default to player car)
+	self.carSprite = self.attachAsset('car', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.width = self.carSprite.width;
+	self.height = self.carSprite.height;
+	self.speed = 0;
+	self.maxSpeed = 32;
+	self.acceleration = 2.2;
+	self.friction = 0.95;
+	self.angle = 0; // radians
+	self.turnSpeed = 0.09;
+	self.boosting = false;
+	self.boostPower = 48;
+	self.boostCooldown = 0;
+	self.isAI = false;
+	// For AI
+	self.targetX = 0;
+	self.targetY = 0;
+	self.update = function () {
+		// AI logic
+		if (self.isAI) {
+			// Simple AI: Move towards ball, try to push it to player goal
+			var dx = ball.x - self.x;
+			var dy = ball.y - self.y;
+			var dist = Math.sqrt(dx * dx + dy * dy);
+			// Target: If ball is on AI's side, go for ball, else defend
+			if (ball.y < 1366) {
+				self.targetX = ball.x;
+				self.targetY = ball.y + 120;
+			} else {
+				// Defend goal
+				self.targetX = 1024;
+				self.targetY = 220;
+			}
+			// Turn towards target
+			var desiredAngle = Math.atan2(self.targetY - self.y, self.targetX - self.x);
+			var angleDiff = desiredAngle - self.angle;
+			while (angleDiff > Math.PI) angleDiff -= Math.PI * 2;
+			while (angleDiff < -Math.PI) angleDiff += Math.PI * 2;
+			if (angleDiff > 0.1) self.angle += self.turnSpeed;else if (angleDiff < -0.1) self.angle -= self.turnSpeed;
+			// Accelerate if facing target
+			if (Math.abs(angleDiff) < 0.5) {
+				self.speed += self.acceleration * 0.7;
+			}
+			// AI boost if close to ball and facing it
+			if (dist < 400 && Math.abs(angleDiff) < 0.3 && self.boostCooldown <= 0) {
+				self.boosting = true;
+			}
+		}
+		// Boost logic
+		if (self.boosting && self.boostCooldown <= 0) {
+			self.speed = self.boostPower;
+			self.boostCooldown = 60; // 1 second cooldown
+			self.boosting = false;
+		}
+		if (self.boostCooldown > 0) self.boostCooldown--;
+		// Clamp speed
+		if (self.speed > self.maxSpeed) self.speed = self.maxSpeed;
+		if (self.speed < -self.maxSpeed / 2) self.speed = -self.maxSpeed / 2;
+		// Move car
+		self.x += Math.cos(self.angle) * self.speed;
+		self.y += Math.sin(self.angle) * self.speed;
+		// Friction
+		self.speed *= self.friction;
+		// Keep in bounds
+		if (self.x < self.width / 2) self.x = self.width / 2;
+		if (self.x > 2048 - self.width / 2) self.x = 2048 - self.width / 2;
+		if (self.y < self.height / 2) self.y = self.height / 2;
+		if (self.y > 2732 - self.height / 2) self.y = 2732 - self.height / 2;
+		// Rotate sprite
+		self.carSprite.rotation = self.angle;
+	};
+	return self;
+});
+
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
-	backgroundColor: 0x000000
-});
\ No newline at end of file
+	backgroundColor: 0x222222
+});
+
+/**** 
+* Game Code
+****/ 
+// Goal asset (AI)
+// Goal asset (player)
+// Ball asset
+// Car asset (AI)
+// Car asset (player)
+// Game state
+var playerScore = 0;
+var aiScore = 0;
+var matchTime = 60; // seconds
+var timeLeft = matchTime;
+var gameActive = true;
+// Create goals
+var goalPlayer = LK.getAsset('goal_player', {
+	anchorX: 0.5,
+	anchorY: 0.5,
+	x: 1024,
+	y: 2732 - 80
+});
+var goalAI = LK.getAsset('goal_ai', {
+	anchorX: 0.5,
+	anchorY: 0.5,
+	x: 1024,
+	y: 80
+});
+game.addChild(goalPlayer);
+game.addChild(goalAI);
+// Create ball
+var ball = new Ball();
+game.addChild(ball);
+// Create player car
+var playerCar = new Car();
+playerCar.x = 1024;
+playerCar.y = 2732 - 400;
+playerCar.angle = -Math.PI / 2;
+game.addChild(playerCar);
+// Create AI car
+var aiCar = new Car();
+aiCar.carSprite.destroy();
+aiCar.carSprite = aiCar.attachAsset('car_ai', {
+	anchorX: 0.5,
+	anchorY: 0.5
+});
+aiCar.isAI = true;
+aiCar.x = 1024;
+aiCar.y = 400;
+aiCar.angle = Math.PI / 2;
+game.addChild(aiCar);
+// Score display
+var scoreTxt = new Text2('0 : 0', {
+	size: 120,
+	fill: 0xFFFFFF
+});
+scoreTxt.anchor.set(0.5, 0);
+LK.gui.top.addChild(scoreTxt);
+// Timer display
+var timerTxt = new Text2('60', {
+	size: 90,
+	fill: 0xFFFF00
+});
+timerTxt.anchor.set(0.5, 0);
+LK.gui.top.addChild(timerTxt);
+timerTxt.y = 120;
+// Helper: Reset ball and cars to center
+function resetPositions(scoredBy) {
+	ball.x = 1024;
+	ball.y = 1366;
+	ball.vx = 0;
+	ball.vy = 0;
+	playerCar.x = 1024;
+	playerCar.y = 2732 - 400;
+	playerCar.angle = -Math.PI / 2;
+	playerCar.speed = 0;
+	aiCar.x = 1024;
+	aiCar.y = 400;
+	aiCar.angle = Math.PI / 2;
+	aiCar.speed = 0;
+	// Small pause after goal
+	gameActive = false;
+	tween(ball, {
+		alpha: 0.2
+	}, {
+		duration: 200,
+		onFinish: function onFinish() {
+			tween(ball, {
+				alpha: 1
+			}, {
+				duration: 200,
+				onFinish: function onFinish() {
+					gameActive = true;
+				}
+			});
+		}
+	});
+}
+// Touch controls
+var touchActive = false;
+var touchStartX = 0,
+	touchStartY = 0;
+var touchCurX = 0,
+	touchCurY = 0;
+var boostActive = false;
+// Touch: steer by dragging, boost by double tap or long press
+game.down = function (x, y, obj) {
+	// Ignore if not active
+	if (!gameActive) return;
+	// Don't allow touch in top left 100x100
+	if (x < 100 && y < 100) return;
+	touchActive = true;
+	touchStartX = x;
+	touchStartY = y;
+	touchCurX = x;
+	touchCurY = y;
+	boostActive = false;
+	// Detect long press for boost
+	playerCar.boosting = false;
+	playerCar._boostTimeout = LK.setTimeout(function () {
+		boostActive = true;
+		playerCar.boosting = true;
+	}, 400);
+};
+game.move = function (x, y, obj) {
+	if (!gameActive) return;
+	if (!touchActive) return;
+	touchCurX = x;
+	touchCurY = y;
+	// Steer: angle towards drag direction
+	var dx = touchCurX - playerCar.x;
+	var dy = touchCurY - playerCar.y;
+	var desiredAngle = Math.atan2(dy, dx);
+	var angleDiff = desiredAngle - playerCar.angle;
+	while (angleDiff > Math.PI) angleDiff -= Math.PI * 2;
+	while (angleDiff < -Math.PI) angleDiff += Math.PI * 2;
+	if (angleDiff > 0.1) playerCar.angle += playerCar.turnSpeed;else if (angleDiff < -0.1) playerCar.angle -= playerCar.turnSpeed;
+	// Accelerate if facing drag direction
+	if (Math.abs(angleDiff) < 0.5) {
+		playerCar.speed += playerCar.acceleration;
+	}
+	// Clamp
+	if (playerCar.speed > playerCar.maxSpeed) playerCar.speed = playerCar.maxSpeed;
+};
+game.up = function (x, y, obj) {
+	touchActive = false;
+	if (playerCar._boostTimeout) {
+		LK.clearTimeout(playerCar._boostTimeout);
+		playerCar._boostTimeout = null;
+	}
+	if (boostActive) {
+		boostActive = false;
+	}
+};
+// Double tap for boost
+var lastTap = 0;
+game.down = function (origDown) {
+	return function (x, y, obj) {
+		var now = Date.now();
+		if (now - lastTap < 350) {
+			// Double tap: boost
+			playerCar.boosting = true;
+		}
+		lastTap = now;
+		origDown.call(game, x, y, obj);
+	};
+}(game.down);
+// Physics: Car-ball collision
+function carBallCollision(car, ball) {
+	var dx = ball.x - car.x;
+	var dy = ball.y - car.y;
+	var dist = Math.sqrt(dx * dx + dy * dy);
+	var minDist = (car.width / 2 + ball.width / 2) * 0.8;
+	if (dist < minDist) {
+		// Push ball away
+		var nx = dx / (dist || 1);
+		var ny = dy / (dist || 1);
+		var overlap = minDist - dist;
+		ball.x += nx * overlap / 2;
+		ball.y += ny * overlap / 2;
+		// Ball velocity: add car's speed
+		var impact = Math.max(8, car.speed * 1.2);
+		ball.vx += nx * impact;
+		ball.vy += ny * impact;
+		// Car bounces a bit
+		car.speed *= 0.7;
+	}
+}
+// Physics: Car-car collision
+function carCarCollision(car1, car2) {
+	var dx = car2.x - car1.x;
+	var dy = car2.y - car1.y;
+	var dist = Math.sqrt(dx * dx + dy * dy);
+	var minDist = (car1.width / 2 + car2.width / 2) * 0.9;
+	if (dist < minDist) {
+		var nx = dx / (dist || 1);
+		var ny = dy / (dist || 1);
+		var overlap = minDist - dist;
+		car1.x -= nx * overlap / 2;
+		car1.y -= ny * overlap / 2;
+		car2.x += nx * overlap / 2;
+		car2.y += ny * overlap / 2;
+		// Exchange some speed
+		var temp = car1.speed;
+		car1.speed = car2.speed * 0.7;
+		car2.speed = temp * 0.7;
+	}
+}
+// Goal detection
+function checkGoal() {
+	// Player goal (top)
+	if (ball.y - ball.height / 2 < goalAI.y + goalAI.height / 2 && ball.x > goalAI.x - goalAI.width / 2 && ball.x < goalAI.x + goalAI.width / 2) {
+		playerScore++;
+		scoreTxt.setText(playerScore + " : " + aiScore);
+		LK.effects.flashScreen(0x00ff00, 500);
+		resetPositions('player');
+	}
+	// AI goal (bottom)
+	if (ball.y + ball.height / 2 > goalPlayer.y - goalPlayer.height / 2 && ball.x > goalPlayer.x - goalPlayer.width / 2 && ball.x < goalPlayer.x + goalPlayer.width / 2) {
+		aiScore++;
+		scoreTxt.setText(playerScore + " : " + aiScore);
+		LK.effects.flashScreen(0xff0000, 500);
+		resetPositions('ai');
+	}
+}
+// Timer
+var timerInterval = LK.setInterval(function () {
+	if (!gameActive) return;
+	if (timeLeft > 0) {
+		timeLeft--;
+		timerTxt.setText(timeLeft + "");
+		if (timeLeft <= 10) timerTxt.setText(timeLeft + "!");
+	}
+	if (timeLeft <= 0) {
+		// End game
+		gameActive = false;
+		if (playerScore > aiScore) {
+			LK.showYouWin();
+		} else if (aiScore > playerScore) {
+			LK.showGameOver();
+		} else {
+			// Draw: treat as loss for now
+			LK.showGameOver();
+		}
+	}
+}, 1000);
+// Main update loop
+game.update = function () {
+	if (!gameActive) return;
+	// Update cars and ball
+	playerCar.update();
+	aiCar.update();
+	ball.update();
+	// Collisions
+	carBallCollision(playerCar, ball);
+	carBallCollision(aiCar, ball);
+	carCarCollision(playerCar, aiCar);
+	// Goal check
+	checkGoal();
+};
+// Initial positions
+resetPositions();
+/* End of game code */
\ No newline at end of file