/**** 
* Classes
****/ 
// Bullet class
var Bullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletGraphics = self.attachAsset('bullet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 50;
	self.update = function () {
		self.x += self.speed;
		if (self.x > 2048 + 50) {
			self.destroy();
		}
	};
});
// Clouds class
var Clouds = Container.expand(function () {
	var self = Container.call(this);
	var cloudsGraphics = self.attachAsset('clouds', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = -0.5;
	self.scale.set(1 + Math.random()); // Randomize scale up to 2x
	self.y = Math.random() * (2732 / 3); // Limit placement to upper 1/3 of screen
	self.update = function () {
		self.x += self.speed;
		if (self.x < -self.width) {
			self.x = 2048 + self.width;
			self.scale.set(1 + Math.random()); // Randomize scale again when repositioned
			self.y = Math.random() * (2732 / 3); // Randomize y position again when repositioned
		}
	};
});
// Enemy class
var Enemy = Container.expand(function () {
	var self = Container.call(this);
	var enemyType = Math.floor(Math.random() * 3);
	if (enemyType == 0) {
		var enemyGraphics = self.attachAsset('enemy', {
			anchorX: 0.5,
			anchorY: 0.5
		});
		self.speed = -5;
	} else if (enemyType == 1) {
		var enemyGraphics = self.attachAsset('enemy2', {
			anchorX: 0.5,
			anchorY: 0.5
		});
		self.speed = -7;
	} else {
		var enemyGraphics = self.attachAsset('enemy3', {
			anchorX: 0.5,
			anchorY: 0.5
		});
		self.speed = -10;
	}
	self.update = function () {
		self.x += self.speed;
		if (self.x < -50) {
			self.destroy();
		}
	};
});
//<Assets used in the game will automatically appear here>
// Hero class
var Hero = Container.expand(function () {
	var self = Container.call(this);
	var heroGraphics = self.attachAsset('hero', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 5;
	self.jumpPower = -20;
	self.isJumping = false;
	self.isFalling = false; // Track if the hero is coming down from a jump
	self.isImmune = false; // Track if the hero is immune
	self.hasGun = false; // Track if the hero has a gun
	self.bullets = 0; // Track the number of bullets the hero has
	self.update = function () {
		if (self.isJumping) {
			self.y += self.jumpPower;
			self.jumpPower += 0.4; // Adjust gravity effect
			if (self.y >= 2732 * 2 / 3 - self.height) {
				// Ground level
				self.y = 2732 * 2 / 3 - self.height;
				self.isJumping = false;
				self.isFalling = false; // The hero is no longer falling
				self.jumpPower = -20; // Adjust jump power
			} else if (self.jumpPower > 0) {
				self.isFalling = true; // The hero is falling
			}
		}
	};
	self.jump = function () {
		if (!self.isJumping) {
			self.isJumping = true;
		}
	};
	self.makeImmune = function () {
		self.isImmune = true;
		LK.setTimeout(function () {
			self.isImmune = false;
		}, 3000); // Make the hero immune for 3 seconds
	};
	self.giveGun = function () {
		self.hasGun = true;
		self.bullets = 10;
	};
});
// Pothole class
var Pothole = Container.expand(function () {
	var self = Container.call(this);
	var potholeGraphics = self.attachAsset('pothole', {
		anchorX: 0.5,
		anchorY: 0.5,
		color: 0x8B4513 // Brown color
	});
	self.update = function () {
		self.x -= 3;
		if (self.x < -50) {
			self.destroy();
		}
	};
});
// PowerUp class
var PowerUp = Container.expand(function () {
	var self = Container.call(this);
	var powerUpType = Math.floor(Math.random() * 3);
	if (powerUpType == 0) {
		var powerUpGraphics = self.attachAsset('powerUp', {
			anchorX: 0.5,
			anchorY: 0.5
		});
		self.value = 50;
	} else if (powerUpType == 1) {
		var powerUpGraphics = self.attachAsset('powerUp2', {
			anchorX: 0.5,
			anchorY: 0.5
		});
		self.value = 100;
	} else {
		var powerUpGraphics = self.attachAsset('powerUp3', {
			anchorX: 0.5,
			anchorY: 0.5
		});
		self.value = 150;
	}
	self.update = function () {
		self.x -= 5;
		if (self.x < -50) {
			self.destroy();
		}
	};
});
// PowerUpTimer class
var PowerUpTimer = Container.expand(function () {
	var self = Container.call(this);
	var timerBarGraphics = self.attachAsset('timerBar', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.update = function () {
		if (self.width > 0) {
			self.width -= 1;
		} else {
			self.destroy();
		}
	};
});
// Sky class
var Sky = Container.expand(function () {
	var self = Container.call(this);
	var skyGraphics = self.attachAsset('sky', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.update = function () {
		// Sky movement logic (if any)
	};
});
// Treasure class
var Treasure = Container.expand(function () {
	var self = Container.call(this);
	var treasureType = Math.floor(Math.random() * 3);
	if (treasureType == 0) {
		var treasureGraphics = self.attachAsset('treasure', {
			anchorX: 0.5,
			anchorY: 0.5
		});
		self.value = 10;
	} else if (treasureType == 1) {
		var treasureGraphics = self.attachAsset('treasure2', {
			anchorX: 0.5,
			anchorY: 0.5
		});
		self.value = 20;
	} else {
		var treasureGraphics = self.attachAsset('treasure3', {
			anchorX: 0.5,
			anchorY: 0.5
		});
		self.value = 30;
	}
	self.update = function () {
		self.x -= 5;
		if (self.x < -50) {
			self.destroy();
		}
	};
});
// Trees class
var Trees = Container.expand(function () {
	var self = Container.call(this);
	var treesGraphics = self.attachAsset('trees', {
		anchorX: 0.5,
		anchorY: 1.0 // Base of tree should be above ground level
	});
	self.speed = -5;
	self.scale.set(0.5 + Math.random()); // Randomize scale from 0.5 to 1.5
	self.y = 2732 * 2 / 3 - (200 + Math.random() * 100); // Position the base of the tree above ground level
	self.update = function () {
		self.x += self.speed;
		if (self.x < -self.width) {
			self.x = 2048 + self.width;
			self.scale.set(0.5 + Math.random()); // Randomize scale again when repositioned
		}
	};
});

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

/**** 
* Game Code
****/ 
function spawnCloud() {
	if (game.children.filter(function (child) {
		return child instanceof Clouds;
	}).length < 3) {
		var cloud = new Clouds();
		cloud.x = 2048 + cloud.width;
		game.addChild(cloud);
	}
}
var sky = game.addChild(new Sky());
sky.x = 2048 / 2;
sky.y = 2732 / 2;
var trees = game.addChild(new Trees());
var clouds = game.addChild(new Clouds());
clouds.x = 2048 / 2;
clouds.y = 2732 / 4;
var ground = game.addChild(LK.getAsset('ground', {
	x: 0,
	y: 2732 * 2 / 3 - 120
}));
var hero = game.addChild(new Hero());
hero.x = 200;
hero.y = 2732 * 2 / 3 - hero.height - 10;
var enemies = [];
var potholes = [];
var treasures = [];
var powerUps = [];
var scoreTxt = new Text2('0', {
	size: 150,
	fill: "#ffffff"
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
var score = 0;
function spawnEnemy() {
	var enemy = new Enemy();
	enemy.x = 2048;
	enemy.y = 2732 * 2 / 3 - enemy.height - 10;
	enemies.push(enemy);
	game.addChild(enemy);
}
function spawnPothole() {
	var pothole = new Pothole();
	pothole.x = 2048;
	pothole.y = 2732 * 2 / 3 - pothole.height; // Move the potholes up to the grassline
	potholes.push(pothole);
	game.addChild(pothole);
}
function spawnTreasure() {
	var treasure = new Treasure();
	treasure.x = 2048;
	treasure.y = 2732 * 2 / 3 - treasure.height - 350; // Increase the spawn height of treasures
	treasures.push(treasure);
	game.addChild(treasure);
}
function spawnPowerUp() {
	var powerUp = new PowerUp();
	powerUp.x = 2048;
	powerUp.y = 2732 * 2 / 3 - powerUp.height - 300; // Increase the spawn height of power-ups
	powerUps.push(powerUp);
	game.addChild(powerUp);
}
game.down = function (x, y, obj) {
	if (hero.hasGun && hero.bullets > 0) {
		// Fire a bullet
		var bullet = new Bullet();
		bullet.x = hero.x;
		bullet.y = hero.y;
		game.addChild(bullet);
		hero.bullets--;
		if (hero.bullets == 0) {
			hero.hasGun = false;
		}
	} else {
		hero.jump();
	}
};
game.update = function () {
	hero.update();
	sky.update();
	trees.update();
	if (LK.ticks % 180 == 0) {
		var tree = new Trees();
		tree.x = 2048 + tree.width;
		game.addChild(tree);
	}
	clouds.update();
	for (var i = enemies.length - 1; i >= 0; i--) {
		enemies[i].update();
		if (hero.intersects(enemies[i])) {
			if (hero.isFalling) {
				// The hero kills the enemy if it is falling
				enemies[i].destroy();
				enemies.splice(i, 1);
			} else if (!hero.isImmune) {
				// The hero dies if it is not falling and not immune
				LK.effects.flashScreen(0xff0000, 1000);
				LK.showGameOver();
			}
		}
		// Check for bullet collision with enemies
		for (var j = game.children.length - 1; j >= 0; j--) {
			if (game.children[j] instanceof Bullet) {
				if (enemies[i].intersects(game.children[j])) {
					// Destroy the enemy and the bullet
					enemies[i].destroy();
					enemies.splice(i, 1);
					if (game.children[j]) {
						game.children[j].destroy();
					}
					break;
				}
			}
			break; // Ensure only one enemy is killed per bullet
		}
	}
	for (var i = game.children.length - 1; i >= 0; i--) {
		if (game.children[i] instanceof Pothole) {
			game.children[i].update();
			if (hero.intersects(game.children[i])) {
				LK.effects.flashScreen(0xff0000, 1000);
				LK.showGameOver();
			}
		}
	}
	for (var i = treasures.length - 1; i >= 0; i--) {
		treasures[i].update();
		if (hero.intersects(treasures[i])) {
			score += 10;
			scoreTxt.setText(score);
			treasures[i].destroy();
			treasures.splice(i, 1);
		}
	}
	for (var i = powerUps.length - 1; i >= 0; i--) {
		powerUps[i].update();
		if (hero.intersects(powerUps[i])) {
			var powerUpTimer = new PowerUpTimer();
			powerUpTimer.x = 2048 * (i + 1) / (powerUps.length + 1);
			powerUpTimer.y = 50;
			game.addChild(powerUpTimer);
			if (powerUps[i].value == 150) {
				// If the power up is powerUp3, make the hero immune
				hero.makeImmune();
			} else if (powerUps[i].value == 100) {
				// If the power up is powerUp2, give the hero a gun
				hero.giveGun();
			} else {
				score += 50;
				scoreTxt.setText(score);
			}
			powerUps[i].destroy();
			powerUps.splice(i, 1);
		}
	}
	if (LK.ticks % 60 == 0) {
		spawnEnemy();
	}
	if (LK.ticks % 120 == 0) {
		var pothole = new Pothole();
		pothole.x = 2048;
		pothole.y = 2732 - pothole.height;
		game.addChild(pothole);
	}
	if (LK.ticks % 180 == 0) {
		spawnTreasure();
	}
	if (LK.ticks % 240 == 0) {
		spawnPowerUp();
	}
	if (LK.ticks % 300 == 0) {
		spawnCloud();
	}
};

===================================================================
--- original.js
+++ change.js
@@ -252,12 +252,9 @@
 }
 var sky = game.addChild(new Sky());
 sky.x = 2048 / 2;
 sky.y = 2732 / 2;
-var trees = new Trees();
-trees.x = 2048 / 2;
-trees.y = 2732 * 2 / 3;
-game.addChildAt(trees, 0); // Add trees at the bottom of the display list to ensure they appear behind the player
+var trees = game.addChild(new Trees());
 var clouds = game.addChild(new Clouds());
 clouds.x = 2048 / 2;
 clouds.y = 2732 / 4;
 var ground = game.addChild(LK.getAsset('ground', {
@@ -327,9 +324,9 @@
 	trees.update();
 	if (LK.ticks % 180 == 0) {
 		var tree = new Trees();
 		tree.x = 2048 + tree.width;
-		game.addChildAt(tree, 0); // Add trees at the bottom of the display list to ensure they appear behind the player
+		game.addChild(tree);
 	}
 	clouds.update();
 	for (var i = enemies.length - 1; i >= 0; i--) {
 		enemies[i].update();