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

/**** 
* Classes
****/ 
var Bullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletGraphics = self.attachAsset('bullet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.type = 'bullet';
	self.speed = 6;
	self.lastY = 0;
	self.update = function () {
		self.y += self.speed;
		self.lastY = self.y;
	};
	return self;
});
var Eye = Container.expand(function () {
	var self = Container.call(this);
	var eyeWhite = self.attachAsset('eye', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	var pupil = self.attachAsset('pupil', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	pupil.x = 5;
	pupil.y = 5;
	self.setPupilPosition = function (targetX, targetY) {
		var maxDistance = 8;
		var dx = targetX - self.x;
		var dy = targetY - self.y;
		var distance = Math.sqrt(dx * dx + dy * dy);
		if (distance > 0) {
			var angle = Math.atan2(dy, dx);
			pupil.x = Math.cos(angle) * maxDistance;
			pupil.y = Math.sin(angle) * maxDistance;
		}
	};
	return self;
});
var EyeBall = Container.expand(function () {
	var self = Container.call(this);
	var ballGraphics = self.attachAsset('ball', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	var leftEye = self.addChild(new Eye());
	leftEye.x = -30;
	leftEye.y = -20;
	var rightEye = self.addChild(new Eye());
	rightEye.x = 30;
	rightEye.y = -20;
	var mouth = self.attachAsset('mouth', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	mouth.y = 35;
	mouth.scaleX = 0.8;
	mouth.scaleY = 0.6;
	self.speed = 0;
	self.maxSpeed = 8;
	self.acceleration = 0.5;
	self.friction = 0.92;
	self.vx = 0;
	self.vy = 0;
	self.setTarget = function (targetX, targetY) {
		leftEye.setPupilPosition(targetX, targetY);
		rightEye.setPupilPosition(targetX, targetY);
		var dx = targetX - self.x;
		var dy = targetY - self.y;
		var distance = Math.sqrt(dx * dx + dy * dy);
		if (distance > 50) {
			var angle = Math.atan2(dy, dx);
			self.vx += Math.cos(angle) * self.acceleration;
			self.vy += Math.sin(angle) * self.acceleration;
		}
	};
	self.update = function () {
		self.vx *= self.friction;
		self.vy *= self.friction;
		var currentSpeed = Math.sqrt(self.vx * self.vx + self.vy * self.vy);
		if (currentSpeed > self.maxSpeed) {
			var scale = self.maxSpeed / currentSpeed;
			self.vx *= scale;
			self.vy *= scale;
		}
		self.x += self.vx;
		self.y += self.vy;
		if (self.x < 60) self.x = 60;
		if (self.x > 2048 - 60) self.x = 2048 - 60;
		if (self.y < 60) self.y = 60;
		if (self.y > 2732 - 60) self.y = 2732 - 60;
	};
	return self;
});
var Goal = Container.expand(function () {
	var self = Container.call(this);
	var goalGraphics = self.attachAsset('goal', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.pulse = 0;
	self.update = function () {
		self.pulse += 0.05;
		var scale = 1 + Math.sin(self.pulse) * 0.1;
		goalGraphics.scaleX = scale;
		goalGraphics.scaleY = scale;
	};
	return self;
});
var MovingObstacle = Container.expand(function () {
	var self = Container.call(this);
	var obstacleGraphics = self.attachAsset('obstacle', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	obstacleGraphics.tint = 0xFF6666;
	self.type = 'moving';
	self.startX = 0;
	self.startY = 0;
	self.endX = 0;
	self.endY = 0;
	self.progress = 0;
	self.speed = 0.01;
	self.update = function () {
		self.progress += self.speed;
		if (self.progress > 1) self.progress = 0;
		self.x = self.startX + (self.endX - self.startX) * self.progress;
		self.y = self.startY + (self.endY - self.startY) * self.progress;
	};
	return self;
});
var Obstacle = Container.expand(function () {
	var self = Container.call(this);
	var obstacleGraphics = self.attachAsset('obstacle', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.type = 'static';
	return self;
});
var Spike = Container.expand(function () {
	var self = Container.call(this);
	var spikeGraphics = self.attachAsset('spike', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	spikeGraphics.tint = 0xFF8800;
	spikeGraphics.rotation = Math.PI / 4;
	self.type = 'hazard';
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x1A1A2E
});

/**** 
* Game Code
****/ 
var eyeBall = game.addChild(new EyeBall());
eyeBall.x = 1024;
eyeBall.y = 1366;
var currentStage = storage.currentStage || 1;
var livesRemaining = 3;
var obstacles = [];
var goal = null;
var stageComplete = false;
var gameState = 'playing';
var dragNode = null;
var bullets = [];
var bulletSpawnRate = 80;
var bulletSpawnTimer = 0;
var stageText = new Text2('Stage ' + currentStage + '/5', {
	size: 80,
	fill: '#FFFFFF'
});
stageText.anchor.set(0, 0);
LK.gui.topRight.addChild(stageText);
var livesText = new Text2('Lives: ' + livesRemaining, {
	size: 80,
	fill: '#FF4444'
});
livesText.anchor.set(1, 0);
LK.gui.topRight.addChild(livesText);
function createStageObstacles(stage) {
	obstacles = [];
	bulletSpawnRate = 80 - stage * 10;
	if (bulletSpawnRate < 40) bulletSpawnRate = 40;
	var obs1 = game.addChild(new Obstacle());
	obs1.x = 400;
	obs1.y = 600;
	obstacles.push(obs1);
	if (stage >= 2) {
		var movObs = game.addChild(new MovingObstacle());
		movObs.startX = 600;
		movObs.startY = 1000;
		movObs.endX = 1400;
		movObs.endY = 1000;
		movObs.speed = 0.005;
		movObs.x = movObs.startX;
		movObs.y = movObs.startY;
		obstacles.push(movObs);
	}
	if (stage >= 3) {
		var spike1 = game.addChild(new Spike());
		spike1.x = 800;
		spike1.y = 1500;
		obstacles.push(spike1);
		var spike2 = game.addChild(new Spike());
		spike2.x = 1200;
		spike2.y = 1800;
		obstacles.push(spike2);
	}
	if (stage >= 4) {
		var obs2 = game.addChild(new Obstacle());
		obs2.x = 1600;
		obs2.y = 800;
		obstacles.push(obs2);
		var movObs2 = game.addChild(new MovingObstacle());
		movObs2.startX = 300;
		movObs2.startY = 2000;
		movObs2.endX = 1700;
		movObs2.endY = 2000;
		movObs2.speed = 0.008;
		movObs2.x = movObs2.startX;
		movObs2.y = movObs2.startY;
		obstacles.push(movObs2);
	}
	if (stage >= 5) {
		var movObs3 = game.addChild(new MovingObstacle());
		movObs3.startX = 500;
		movObs3.startY = 500;
		movObs3.endX = 1500;
		movObs3.endY = 500;
		movObs3.speed = 0.012;
		movObs3.x = movObs3.startX;
		movObs3.y = movObs3.startY;
		obstacles.push(movObs3);
		var spike3 = game.addChild(new Spike());
		spike3.x = 1024;
		spike3.y = 1366;
		obstacles.push(spike3);
	}
	function addGoalBarriers(stage) {
		if (stage === 1) {
			var barrier1 = game.addChild(new Obstacle());
			barrier1.x = 1024;
			barrier1.y = 2200;
			obstacles.push(barrier1);
		}
		if (stage === 2) {
			var barrier2a = game.addChild(new Obstacle());
			barrier2a.x = 800;
			barrier2a.y = 2350;
			obstacles.push(barrier2a);
			var barrier2b = game.addChild(new Obstacle());
			barrier2b.x = 1250;
			barrier2b.y = 2350;
			obstacles.push(barrier2b);
		}
		if (stage === 3) {
			var barrier3a = game.addChild(new MovingObstacle());
			barrier3a.startX = 600;
			barrier3a.startY = 2200;
			barrier3a.endX = 1400;
			barrier3a.endY = 2200;
			barrier3a.speed = 0.006;
			barrier3a.x = barrier3a.startX;
			barrier3a.y = barrier3a.startY;
			obstacles.push(barrier3a);
			var barrier3b = game.addChild(new Obstacle());
			barrier3b.x = 1024;
			barrier3b.y = 2100;
			obstacles.push(barrier3b);
		}
		if (stage === 4) {
			var barrier4a = game.addChild(new Obstacle());
			barrier4a.x = 400;
			barrier4a.y = 2250;
			obstacles.push(barrier4a);
			var barrier4b = game.addChild(new Obstacle());
			barrier4b.x = 1650;
			barrier4b.y = 2250;
			obstacles.push(barrier4b);
			var barrier4c = game.addChild(new Obstacle());
			barrier4c.x = 1024;
			barrier4c.y = 2100;
			obstacles.push(barrier4c);
		}
		if (stage === 5) {
			var barrier5a = game.addChild(new MovingObstacle());
			barrier5a.startX = 300;
			barrier5a.startY = 2300;
			barrier5a.endX = 800;
			barrier5a.endY = 2300;
			barrier5a.speed = 0.008;
			barrier5a.x = barrier5a.startX;
			barrier5a.y = barrier5a.startY;
			obstacles.push(barrier5a);
			var barrier5b = game.addChild(new MovingObstacle());
			barrier5b.startX = 1250;
			barrier5b.startY = 2300;
			barrier5b.endX = 1750;
			barrier5b.endY = 2300;
			barrier5b.speed = 0.008;
			barrier5b.x = barrier5b.startX;
			barrier5b.y = barrier5b.startY;
			obstacles.push(barrier5b);
			var spike4 = game.addChild(new Spike());
			spike4.x = 1024;
			spike4.y = 2500;
			obstacles.push(spike4);
		}
	}
	addGoalBarriers(stage);
}
function createGoal(stage) {
	if (goal) goal.destroy();
	var goalPositions = [{
		x: 1024,
		y: 2500
	}, {
		x: 1024,
		y: 2400
	}, {
		x: 1800,
		y: 2200
	}, {
		x: 200,
		y: 2300
	}, {
		x: 1024,
		y: 2500
	}];
	var pos = goalPositions[stage - 1];
	goal = game.addChild(new Goal());
	goal.x = pos.x;
	goal.y = pos.y;
	stageComplete = false;
}
createStageObstacles(currentStage);
addGoalBarriers(currentStage);
createGoal(currentStage);
game.move = function (x, y, obj) {
	if (gameState === 'playing') {
		eyeBall.setTarget(x, y);
	}
};
game.down = function (x, y, obj) {
	if (gameState === 'playing') {
		eyeBall.setTarget(x, y);
	}
};
game.up = function (x, y, obj) {};
game.update = function () {
	if (gameState !== 'playing') return;
	eyeBall.update();
	for (var i = 0; i < obstacles.length; i++) {
		if (obstacles[i].update) {
			obstacles[i].update();
		}
	}
	if (goal && goal.update) {
		goal.update();
	}
	bulletSpawnTimer++;
	if (bulletSpawnTimer >= bulletSpawnRate) {
		bulletSpawnTimer = 0;
		var newBullet = game.addChild(new Bullet());
		newBullet.x = Math.random() * 1800 + 100;
		newBullet.y = -50;
		newBullet.lastY = newBullet.y;
		bullets.push(newBullet);
	}
	for (var b = bullets.length - 1; b >= 0; b--) {
		var bullet = bullets[b];
		bullet.update();
		if (bullet.y > 2800) {
			bullet.destroy();
			bullets.splice(b, 1);
			continue;
		}
		if (eyeBall.intersects(bullet)) {
			LK.getSound('loseLifeSound').play();
			LK.effects.flashScreen(0xFF0000, 300);
			livesRemaining--;
			livesText.setText('Lives: ' + livesRemaining);
			bullet.destroy();
			bullets.splice(b, 1);
			if (livesRemaining <= 0) {
				gameState = 'gameover';
				LK.setTimeout(function () {
					currentStage = storage.currentStage || 1;
					livesRemaining = 3;
					storage.currentStage = 1;
					LK.showGameOver();
				}, 500);
			} else {
				eyeBall.x = 1024;
				eyeBall.y = 1366;
				eyeBall.vx = 0;
				eyeBall.vy = 0;
			}
			break;
		}
	}
	if (goal && eyeBall.intersects(goal) && !stageComplete) {
		stageComplete = true;
		LK.getSound('goalSound').play();
		LK.effects.flashScreen(0x00FF00, 500);
		storage.currentStage = currentStage + 1;
		if (currentStage >= 5) {
			LK.setTimeout(function () {
				LK.showYouWin();
			}, 1000);
		} else {
			LK.setTimeout(function () {
				currentStage = storage.currentStage;
				livesRemaining = 3;
				obstacles = [];
				bullets = [];
				for (var j = obstacles.length - 1; j >= 0; j--) {
					if (obstacles[j]) obstacles[j].destroy();
				}
				for (var jb = bullets.length - 1; jb >= 0; jb--) {
					if (bullets[jb]) bullets[jb].destroy();
				}
				eyeBall.x = 1024;
				eyeBall.y = 1366;
				eyeBall.vx = 0;
				eyeBall.vy = 0;
				createStageObstacles(currentStage);
				addGoalBarriers(currentStage);
				createGoal(currentStage);
				stageText.setText('Stage ' + currentStage + '/5');
				livesText.setText('Lives: ' + livesRemaining);
				gameState = 'playing';
			}, 1500);
		}
		gameState = 'stageComplete';
		return;
	}
	for (var k = 0; k < obstacles.length; k++) {
		var obstacle = obstacles[k];
		if (eyeBall.intersects(obstacle)) {
			LK.getSound('loseLifeSound').play();
			LK.effects.flashScreen(0xFF0000, 300);
			livesRemaining--;
			livesText.setText('Lives: ' + livesRemaining);
			if (livesRemaining <= 0) {
				gameState = 'gameover';
				LK.setTimeout(function () {
					currentStage = storage.currentStage || 1;
					livesRemaining = 3;
					storage.currentStage = 1;
					LK.showGameOver();
				}, 500);
			} else {
				eyeBall.x = 1024;
				eyeBall.y = 1366;
				eyeBall.vx = 0;
				eyeBall.vy = 0;
			}
			break;
		}
	}
};
LK.playMusic('bgmusic', {
	loop: true
});

===================================================================
--- original.js
+++ change.js
@@ -253,8 +253,80 @@
 		spike3.x = 1024;
 		spike3.y = 1366;
 		obstacles.push(spike3);
 	}
+	function addGoalBarriers(stage) {
+		if (stage === 1) {
+			var barrier1 = game.addChild(new Obstacle());
+			barrier1.x = 1024;
+			barrier1.y = 2200;
+			obstacles.push(barrier1);
+		}
+		if (stage === 2) {
+			var barrier2a = game.addChild(new Obstacle());
+			barrier2a.x = 800;
+			barrier2a.y = 2350;
+			obstacles.push(barrier2a);
+			var barrier2b = game.addChild(new Obstacle());
+			barrier2b.x = 1250;
+			barrier2b.y = 2350;
+			obstacles.push(barrier2b);
+		}
+		if (stage === 3) {
+			var barrier3a = game.addChild(new MovingObstacle());
+			barrier3a.startX = 600;
+			barrier3a.startY = 2200;
+			barrier3a.endX = 1400;
+			barrier3a.endY = 2200;
+			barrier3a.speed = 0.006;
+			barrier3a.x = barrier3a.startX;
+			barrier3a.y = barrier3a.startY;
+			obstacles.push(barrier3a);
+			var barrier3b = game.addChild(new Obstacle());
+			barrier3b.x = 1024;
+			barrier3b.y = 2100;
+			obstacles.push(barrier3b);
+		}
+		if (stage === 4) {
+			var barrier4a = game.addChild(new Obstacle());
+			barrier4a.x = 400;
+			barrier4a.y = 2250;
+			obstacles.push(barrier4a);
+			var barrier4b = game.addChild(new Obstacle());
+			barrier4b.x = 1650;
+			barrier4b.y = 2250;
+			obstacles.push(barrier4b);
+			var barrier4c = game.addChild(new Obstacle());
+			barrier4c.x = 1024;
+			barrier4c.y = 2100;
+			obstacles.push(barrier4c);
+		}
+		if (stage === 5) {
+			var barrier5a = game.addChild(new MovingObstacle());
+			barrier5a.startX = 300;
+			barrier5a.startY = 2300;
+			barrier5a.endX = 800;
+			barrier5a.endY = 2300;
+			barrier5a.speed = 0.008;
+			barrier5a.x = barrier5a.startX;
+			barrier5a.y = barrier5a.startY;
+			obstacles.push(barrier5a);
+			var barrier5b = game.addChild(new MovingObstacle());
+			barrier5b.startX = 1250;
+			barrier5b.startY = 2300;
+			barrier5b.endX = 1750;
+			barrier5b.endY = 2300;
+			barrier5b.speed = 0.008;
+			barrier5b.x = barrier5b.startX;
+			barrier5b.y = barrier5b.startY;
+			obstacles.push(barrier5b);
+			var spike4 = game.addChild(new Spike());
+			spike4.x = 1024;
+			spike4.y = 2500;
+			obstacles.push(spike4);
+		}
+	}
+	addGoalBarriers(stage);
 }
 function createGoal(stage) {
 	if (goal) goal.destroy();
 	var goalPositions = [{
@@ -279,8 +351,9 @@
 	goal.y = pos.y;
 	stageComplete = false;
 }
 createStageObstacles(currentStage);
+addGoalBarriers(currentStage);
 createGoal(currentStage);
 game.move = function (x, y, obj) {
 	if (gameState === 'playing') {
 		eyeBall.setTarget(x, y);
@@ -369,8 +442,9 @@
 				eyeBall.y = 1366;
 				eyeBall.vx = 0;
 				eyeBall.vy = 0;
 				createStageObstacles(currentStage);
+				addGoalBarriers(currentStage);
 				createGoal(currentStage);
 				stageText.setText('Stage ' + currentStage + '/5');
 				livesText.setText('Lives: ' + livesRemaining);
 				gameState = 'playing';