/**** 
* Plugins
****/ 
var tween = LK.import("@upit/tween.v1");
var storage = LK.import("@upit/storage.v1", {
	highScore: 0
});

/**** 
* Classes
****/ 
var BackgroundBuilding = Container.expand(function () {
	var self = Container.call(this);
	var buildingGraphics = self.attachAsset('buildingPiece', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Randomize building color slightly
	var colorVariation = Math.random() * 0x222222;
	buildingGraphics.tint = 0x333333 + colorVariation;
	// Randomize building height
	var heightScale = 0.8 + Math.random() * 1.2;
	buildingGraphics.scaleY = heightScale;
	self.speed = 2 + Math.random() * 2; // Slightly randomized speed for parallax
	self.update = function () {
		self.y -= self.speed;
		// Loop building if it goes off screen
		if (self.y < -500) {
			self.y = 2732 + 100;
			self.x = Math.random() * 2048; // Random horizontal position
		}
	};
	return self;
});
var Batarang = Container.expand(function () {
	var self = Container.call(this);
	var batarangGraphics = self.attachAsset('batarang', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.active = true;
	self.speed = 20;
	self.update = function () {
		self.y -= self.speed;
		batarangGraphics.rotation += 0.2;
		// Remove if off screen
		if (self.y < -50) {
			self.active = false;
		}
	};
	return self;
});
var Batmobile = Container.expand(function () {
	var self = Container.call(this);
	var batmobileGraphics = self.attachAsset('batmobile', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 10;
	self.jumpHeight = 0;
	self.isJumping = false;
	self.lane = 1; // 0 = left, 1 = center, 2 = right
	self.lanePositions = [600, 1024, 1448]; // x positions for the three lanes
	self.groundY = 2300; // ground position
	self.jumping = false;
	self.invincible = false;
	self.jump = function () {
		if (!self.jumping) {
			self.jumping = true;
			// Jump up
			tween(self, {
				y: self.groundY - 300
			}, {
				duration: 500,
				easing: tween.easeOut,
				onFinish: function onFinish() {
					// Fall back down
					tween(self, {
						y: self.groundY
					}, {
						duration: 500,
						easing: tween.easeIn,
						onFinish: function onFinish() {
							self.jumping = false;
						}
					});
				}
			});
		}
	};
	self.moveLeft = function () {
		if (self.lane > 0) {
			self.lane--;
			tween(self, {
				x: self.lanePositions[self.lane]
			}, {
				duration: 200,
				easing: tween.easeOut
			});
		}
	};
	self.moveRight = function () {
		if (self.lane < 2) {
			self.lane++;
			tween(self, {
				x: self.lanePositions[self.lane]
			}, {
				duration: 200,
				easing: tween.easeOut
			});
		}
	};
	self.makeInvincible = function (duration) {
		self.invincible = true;
		// Flash effect
		var flashCount = 0;
		var flashInterval = LK.setInterval(function () {
			batmobileGraphics.alpha = batmobileGraphics.alpha === 1 ? 0.3 : 1;
			flashCount++;
			if (flashCount >= 10) {
				LK.clearInterval(flashInterval);
				batmobileGraphics.alpha = 1;
				self.invincible = false;
			}
		}, duration / 10);
	};
	self.shootBatarang = function () {
		var batarang = new Batarang();
		batarang.x = self.x;
		batarang.y = self.y - 30;
		game.addChild(batarang);
		activeBatarangs.push(batarang);
		LK.getSound('batarangThrow').play();
	};
	return self;
});
var Gadget = Container.expand(function () {
	var self = Container.call(this);
	var gadgetGraphics = self.attachAsset('gadget', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.type = 'gadget';
	self.active = true;
	// Add some floating animation
	tween(gadgetGraphics, {
		y: 10
	}, {
		duration: 800,
		easing: tween.easeInOut,
		onFinish: function onFinish() {
			tween(gadgetGraphics, {
				y: -10
			}, {
				duration: 800,
				easing: tween.easeInOut,
				onFinish: function onFinish() {
					if (self.active) {
						self.update(); // Restart animation
					}
				}
			});
		}
	});
	self.update = function () {
		self.y += gameSpeed;
		// Remove if off screen
		if (self.y > 2732 + 50) {
			self.active = false;
		}
		// Spin the gadget
		gadgetGraphics.rotation += 0.05;
	};
	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 = 'obstacle';
	self.active = true;
	self.update = function () {
		self.y += gameSpeed;
		// Remove if off screen
		if (self.y > 2732 + 100) {
			self.active = false;
		}
	};
	return self;
});
var Road = Container.expand(function () {
	var self = Container.call(this);
	var roadGraphics = self.attachAsset('roadPiece', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.update = function () {
		self.y -= gameSpeed;
		// Loop road if it goes off screen
		if (self.y < -150) {
			self.y = 2732 + 150;
		}
	};
	return self;
});
var Villain = Container.expand(function () {
	var self = Container.call(this);
	var villainGraphics = self.attachAsset('villain', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.type = 'villain';
	self.active = true;
	self.health = 1;
	self.update = function () {
		self.y += gameSpeed;
		// Remove if off screen
		if (self.y > 2732 + 150) {
			self.active = false;
		}
	};
	self.hit = function () {
		self.health--;
		if (self.health <= 0) {
			self.active = false;
			LK.setScore(LK.getScore() + 100);
			LK.effects.flashObject(self, 0xff0000, 300);
		}
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x000000
});

/**** 
* Game Code
****/ 
// Initialize assets used in this game. Scale them according to what is needed for the game.
// Assets are automatically created and loaded during gameplay or via static code analysis
// Game configuration
var gameSpeed = 10;
var spawnRate = 60; // Lower = more frequent spawns
var difficultyTimer = 0;
var difficultyInterval = 1000; // Increase difficulty every 1000 ticks (about 16 seconds)
var gameOver = false;
var canShoot = true;
var shootCooldown = 30; // Cooldown in frames
var currentCooldown = 0;
var gadgetCount = 0;
// Game elements
var batmobile;
var obstacles = [];
var villains = [];
var gadgets = [];
var activeBatarangs = [];
var roadPieces = [];
var buildings = [];
var lanePositions = [600, 1024, 1448]; // x positions for the three lanes
// UI Elements
var scoreTxt;
var gadgetTxt;
var highScoreTxt;
// Initialize the game
function initGame() {
	// Reset variables
	gameSpeed = 10;
	gameOver = false;
	obstacles = [];
	villains = [];
	gadgets = [];
	activeBatarangs = [];
	difficultyTimer = 0;
	gadgetCount = 0;
	// Set background color to dark blue (night sky)
	game.setBackgroundColor(0x111133);
	// Play background music
	LK.playMusic('batmanTheme', {
		fade: {
			start: 0,
			end: 0.7,
			duration: 1000
		}
	});
	// Create the road
	createRoad();
	// Create background buildings
	createBuildings();
	// Create the Batmobile
	batmobile = new Batmobile();
	batmobile.x = lanePositions[1]; // Start in center lane
	batmobile.y = 2300; // Position near bottom of screen
	game.addChild(batmobile);
	// Create UI
	createUI();
	// Reset score
	LK.setScore(0);
}
function createRoad() {
	// Create several road pieces to form a continuous road
	for (var i = 0; i < 3; i++) {
		var road = new Road();
		road.x = 1024; // Center of screen
		road.y = i * 300 + 2300; // Stacked vertically with the first one at the bottom
		game.addChild(road);
		roadPieces.push(road);
	}
}
function createBuildings() {
	// Create background buildings for parallax effect
	for (var i = 0; i < 15; i++) {
		var building = new BackgroundBuilding();
		building.x = Math.random() * 2048; // Random x position
		building.y = Math.random() * 2732; // Random y position
		game.addChild(building);
		buildings.push(building);
	}
}
function createUI() {
	// Score text
	scoreTxt = new Text2('SCORE: 0', {
		size: 70,
		fill: 0xFFFFFF
	});
	scoreTxt.anchor.set(0, 0);
	scoreTxt.x = 150;
	scoreTxt.y = 50;
	LK.gui.addChild(scoreTxt);
	// Gadget counter
	gadgetTxt = new Text2('GADGETS: 0', {
		size: 70,
		fill: 0xFFFFFF
	});
	gadgetTxt.anchor.set(0, 0);
	gadgetTxt.x = 150;
	gadgetTxt.y = 130;
	LK.gui.addChild(gadgetTxt);
	// High score
	highScoreTxt = new Text2('HIGH SCORE: ' + storage.highScore, {
		size: 70,
		fill: 0xFFFFFF
	});
	highScoreTxt.anchor.set(1, 0);
	highScoreTxt.x = 1900;
	highScoreTxt.y = 50;
	LK.gui.addChild(highScoreTxt);
}
function spawnObstacle() {
	var lane = Math.floor(Math.random() * 3); // Random lane
	var obstacle = new Obstacle();
	obstacle.x = lanePositions[lane];
	obstacle.y = -100; // Start just off-screen at the top
	game.addChild(obstacle);
	obstacles.push(obstacle);
}
function spawnVillain() {
	var lane = Math.floor(Math.random() * 3); // Random lane
	var villain = new Villain();
	villain.x = lanePositions[lane];
	villain.y = -100; // Start just off-screen at the top
	game.addChild(villain);
	villains.push(villain);
}
function spawnGadget() {
	var lane = Math.floor(Math.random() * 3); // Random lane
	var gadget = new Gadget();
	gadget.x = lanePositions[lane];
	gadget.y = -100; // Start just off-screen at the top
	game.addChild(gadget);
	gadgets.push(gadget);
}
function checkCollisions() {
	// Check Batmobile collision with obstacles
	for (var i = obstacles.length - 1; i >= 0; i--) {
		var obstacle = obstacles[i];
		if (obstacle.active && batmobile.intersects(obstacle) && !batmobile.invincible) {
			// Collision with obstacle
			LK.getSound('crash').play();
			LK.effects.flashScreen(0xff0000, 500);
			// Update high score if needed
			if (LK.getScore() > storage.highScore) {
				storage.highScore = LK.getScore();
				highScoreTxt.setText('HIGH SCORE: ' + storage.highScore);
			}
			LK.showGameOver();
			gameOver = true;
			return;
		}
	}
	// Check Batmobile collision with villains
	for (var i = villains.length - 1; i >= 0; i--) {
		var villain = villains[i];
		if (villain.active && batmobile.intersects(villain) && !batmobile.invincible) {
			// Collision with villain
			LK.getSound('crash').play();
			LK.effects.flashScreen(0xff0000, 500);
			// Update high score if needed
			if (LK.getScore() > storage.highScore) {
				storage.highScore = LK.getScore();
				highScoreTxt.setText('HIGH SCORE: ' + storage.highScore);
			}
			LK.showGameOver();
			gameOver = true;
			return;
		}
	}
	// Check Batmobile collection of gadgets
	for (var i = gadgets.length - 1; i >= 0; i--) {
		var gadget = gadgets[i];
		if (gadget.active && batmobile.intersects(gadget)) {
			// Collect gadget
			gadget.active = false;
			LK.getSound('collect').play();
			LK.setScore(LK.getScore() + 50);
			gadgetCount++;
			gadgetTxt.setText('GADGETS: ' + gadgetCount);
			// Flash gadget
			LK.effects.flashObject(gadget, 0xffff00, 300);
			gadgets.splice(i, 1);
			gadget.destroy();
		}
	}
	// Check Batarang collision with villains
	for (var i = activeBatarangs.length - 1; i >= 0; i--) {
		var batarang = activeBatarangs[i];
		if (batarang.active) {
			for (var j = villains.length - 1; j >= 0; j--) {
				var villain = villains[j];
				if (villain.active && batarang.intersects(villain)) {
					// Hit villain with batarang
					villain.hit();
					batarang.active = false;
					activeBatarangs.splice(i, 1);
					batarang.destroy();
					if (!villain.active) {
						villains.splice(j, 1);
						villain.destroy();
					}
					break;
				}
			}
		}
	}
}
function updateGameElements() {
	// Update road pieces
	for (var i = 0; i < roadPieces.length; i++) {
		roadPieces[i].update();
	}
	// Update buildings for parallax effect
	for (var i = 0; i < buildings.length; i++) {
		buildings[i].update();
	}
	// Update obstacles
	for (var i = obstacles.length - 1; i >= 0; i--) {
		var obstacle = obstacles[i];
		obstacle.update();
		if (!obstacle.active) {
			obstacles.splice(i, 1);
			obstacle.destroy();
		}
	}
	// Update villains
	for (var i = villains.length - 1; i >= 0; i--) {
		var villain = villains[i];
		villain.update();
		if (!villain.active) {
			villains.splice(i, 1);
			villain.destroy();
		}
	}
	// Update gadgets
	for (var i = gadgets.length - 1; i >= 0; i--) {
		var gadget = gadgets[i];
		gadget.update();
		if (!gadget.active) {
			gadgets.splice(i, 1);
			gadget.destroy();
		}
	}
	// Update batarangs
	for (var i = activeBatarangs.length - 1; i >= 0; i--) {
		var batarang = activeBatarangs[i];
		batarang.update();
		if (!batarang.active) {
			activeBatarangs.splice(i, 1);
			batarang.destroy();
		}
	}
}
function increaseDifficulty() {
	difficultyTimer++;
	if (difficultyTimer >= difficultyInterval) {
		difficultyTimer = 0;
		// Increase game speed
		gameSpeed += 0.5;
		// Make spawns more frequent
		if (spawnRate > 30) {
			spawnRate -= 2;
		}
		// Flash screen to indicate difficulty increase
		LK.effects.flashScreen(0x0000ff, 300);
	}
}
function updateUI() {
	scoreTxt.setText('SCORE: ' + LK.getScore());
}
function handleShoot() {
	if (currentCooldown > 0) {
		currentCooldown--;
	} else {
		canShoot = true;
	}
}
// Initialize the game when it starts
initGame();
// Game update loop
game.update = function () {
	if (gameOver) return;
	// Increase score by 1 every frame
	LK.setScore(LK.getScore() + 1);
	// Update UI
	updateUI();
	// Handle shooting cooldown
	handleShoot();
	// Update all game elements
	updateGameElements();
	// Check for collisions
	checkCollisions();
	// Increase difficulty over time
	increaseDifficulty();
	// Randomly spawn obstacles, villains, and gadgets
	if (LK.ticks % spawnRate === 0) {
		// 70% chance for obstacle, 20% chance for villain, 10% chance for gadget
		var rand = Math.random();
		if (rand < 0.7) {
			spawnObstacle();
		} else if (rand < 0.9) {
			spawnVillain();
		} else {
			spawnGadget();
		}
	}
};
// Handle touch inputs
game.down = function (x, y, obj) {
	if (gameOver) return;
	// Determine which action to take based on touch position
	if (y < 1366) {
		// Upper half of screen - shoot if we have gadgets
		if (gadgetCount > 0 && canShoot) {
			batmobile.shootBatarang();
			gadgetCount--;
			gadgetTxt.setText('GADGETS: ' + gadgetCount);
			canShoot = false;
			currentCooldown = shootCooldown;
		}
	} else {
		// Lower half of screen - movement
		if (x < 1024) {
			batmobile.moveLeft();
		} else {
			batmobile.moveRight();
		}
	}
};
// Handle swipe up for jump
var startY = 0;
game.move = function (x, y, obj) {
	if (gameOver) return;
	if (obj && obj.event) {
		if (obj.event.type === "touchstart") {
			startY = y;
		} else if (obj.event.type === "touchmove") {
			var deltaY = startY - y;
			if (deltaY > 100) {
				// If swiped up more than 100px
				batmobile.jump();
				startY = y; // Reset to prevent multiple jumps
			}
		}
	}
};

===================================================================
--- original.js
+++ change.js
@@ -162,11 +162,11 @@
 			});
 		}
 	});
 	self.update = function () {
-		self.y -= gameSpeed;
+		self.y += gameSpeed;
 		// Remove if off screen
-		if (self.y < -50) {
+		if (self.y > 2732 + 50) {
 			self.active = false;
 		}
 		// Spin the gadget
 		gadgetGraphics.rotation += 0.05;
@@ -181,11 +181,11 @@
 	});
 	self.type = 'obstacle';
 	self.active = true;
 	self.update = function () {
-		self.y -= gameSpeed;
+		self.y += gameSpeed;
 		// Remove if off screen
-		if (self.y < -100) {
+		if (self.y > 2732 + 100) {
 			self.active = false;
 		}
 	};
 	return self;
@@ -214,11 +214,11 @@
 	self.type = 'villain';
 	self.active = true;
 	self.health = 1;
 	self.update = function () {
-		self.y -= gameSpeed;
+		self.y += gameSpeed;
 		// Remove if off screen
-		if (self.y < -150) {
+		if (self.y > 2732 + 150) {
 			self.active = false;
 		}
 	};
 	self.hit = function () {
@@ -354,25 +354,25 @@
 function spawnObstacle() {
 	var lane = Math.floor(Math.random() * 3); // Random lane
 	var obstacle = new Obstacle();
 	obstacle.x = lanePositions[lane];
-	obstacle.y = 2732 + 100; // Start just off-screen at the bottom
+	obstacle.y = -100; // Start just off-screen at the top
 	game.addChild(obstacle);
 	obstacles.push(obstacle);
 }
 function spawnVillain() {
 	var lane = Math.floor(Math.random() * 3); // Random lane
 	var villain = new Villain();
 	villain.x = lanePositions[lane];
-	villain.y = 2732 + 100; // Start just off-screen at the bottom
+	villain.y = -100; // Start just off-screen at the top
 	game.addChild(villain);
 	villains.push(villain);
 }
 function spawnGadget() {
 	var lane = Math.floor(Math.random() * 3); // Random lane
 	var gadget = new Gadget();
 	gadget.x = lanePositions[lane];
-	gadget.y = 2732 + 100; // Start just off-screen at the bottom
+	gadget.y = -100; // Start just off-screen at the top
 	game.addChild(gadget);
 	gadgets.push(gadget);
 }
 function checkCollisions() {