/**** 
* Classes
****/
var ControlButton = Container.expand(function (assetId, x, y, rotation, controlDirection) {
	var self = Container.call(this);
	function reduceLife() {
		livesCount--;
		if (livesCount < 0) {
			LK.showGameOver();
		} else {
			// Update lives display
			livesDisplay[livesCount].visible = false;
		}
	}
	LK.on('tick', function () {
		var controlButtons = game.children.filter(function (child) {
			return child instanceof ControlButton;
		});
		controlButtons.forEach(function (button) {
			if (button.isPressed) {
				var zbert = game.grid.children.find(function (child) {
					return child instanceof Zbert;
				});
				if (zbert && !zbert.isZbertJumping && !zbert.isHitByBall) {
					zbert.move(button.controlDirection);
				}
			}
		});
	});
	self.on('up', function (obj) {
		buttonGraphics.tint = 0xFFFFFF; // Remove tint
	});
	var buttonGraphics = self.attachAsset(assetId, {
		anchorX: 0.5,
		anchorY: 0.5,
		x: x,
		y: y,
		rotation: rotation,
		alpha: 0.2
	});
	self.controlDirection = controlDirection;
	self.isPressed = false;
	self.on('down', function (obj) {
		buttonGraphics.tint = 0x36369b; // Tint button orange
		self.isPressed = true;
	});
	self.on('up', function (obj) {
		buttonGraphics.tint = 0xFFFFFF; // Remove tint
		self.isPressed = false;
	});
});
var BBall = Container.expand(function (gridX, gridY, width, height) {
	var self = Container.call(this);
	self.isBBallJumping = false;
	self.move = function () {
		if (self.isBBallJumping || !self.parent) {
			return;
		}
		self.isBBallJumping = true;
		var tileWidth = 250;
		var tileHeight = 270;
		var arcHeight = 150;
		var direction = Math.random() < 0.5 ? 'downLeft' : 'downRight';
		var targetX = self.x + (direction === 'downLeft' ? -tileWidth / 2 : tileWidth / 2);
		var targetY = self.y + tileHeight - 90;
		var startX = self.x;
		var startY = self.y;
		var distanceX = targetX - startX;
		var distanceY = targetY - startY;
		var startTime = Date.now();
		var travelTime = Math.max(175, 600 - 25 * levelManager.completedLevels) + bballTravelTimeAddition;
		var bballTickHandler = function bballTickHandler() {
			var currentTime = Date.now();
			var timeElapsed = currentTime - startTime;
			if (timeElapsed < travelTime) {
				var progress = timeElapsed / travelTime;
				var arcProgress = Math.sin(progress * Math.PI);
				self.x = startX + distanceX * progress;
				self.y = startY + distanceY * progress - arcHeight * arcProgress;
				// Adjust shadow size based on jump arc progress
				self.shadowGraphics.width = width * 0.8 * (1 - arcProgress * 0.3);
				self.shadowGraphics.height = height * 0.4 * (1 - arcProgress * 0.3);
			} else {
				self.x = targetX;
				self.y = targetY;
				LK.off('tick', bballTickHandler);
				self.isBBallJumping = false;
				// Reset shadow size when BBall lands
				self.shadowGraphics.width = width * 0.8;
				self.shadowGraphics.height = height * 0.4;
				var tileBelow = game.grid.getTileAt(self.x, self.y + tileHeight / 2);
				if (!tileBelow) {
					if (self.parent) {
						self.parent.removeChild(self);
					}
					// Spawn a new BBall at the top
					var newBBall = new BBall(game.grid.tileArray[0][0].x, game.grid.tileArray[0][0].y - 150, 180, 180);
					game.grid.addChild(newBBall);
					// Trigger the move of the new BBall
					newBBall.move();
				}
			}
		};
		LK.on('tick', bballTickHandler);
		LK.setTimeout(self.move, travelTime + 50);
	};
	self.shadowGraphics = self.attachAsset('zbertShadow', {
		anchorX: 0.5,
		anchorY: 1.0,
		alpha: 0.4
	});
	self.shadowGraphics.width = width * 0.8;
	self.shadowGraphics.height = height * 0.4;
	self.shadowGraphics.y = height * 0.5 + 50;
	var BBallGraphics = self.attachAsset('bouncingBall', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	BBallGraphics.width = width;
	BBallGraphics.height = height;
	self.x = gridX;
	self.y = gridY;
});
var Alien = Container.expand(function (gridX, gridY, width, height) {
	var self = Container.call(this);
	self.isAlienJumping = false;
	self.moveRight = true; // Initialize moveRight to true so the alien starts moving to the right
	self.move = function () {
		if (self.isAlienJumping || !self.parent) {
			return;
		}
		self.isAlienJumping = true;
		var tileWidth = 250;
		var tileHeight = 270;
		var arcHeight = 150;
		var directions = ['upRight', 'upLeft', 'downRight', 'downLeft'];
		var randomDirectionIndex = Math.floor(Math.random() * directions.length);
		var direction = directions[randomDirectionIndex];
		var targetX = self.x + (direction === 'upLeft' || direction === 'downLeft' ? -tileWidth / 2 : tileWidth / 2);
		var targetY = self.y + (direction === 'upRight' || direction === 'upLeft' ? -tileHeight + 90 : tileHeight - 90);
		var startX = self.x;
		var startY = self.y;
		var distanceX = targetX - startX;
		var distanceY = targetY - startY;
		var startTime = Date.now();
		var travelTime = Math.max(175, 600 - 25 * levelManager.completedLevels) + bballTravelTimeAddition;
		var alienTickHandler = function alienTickHandler() {
			var currentTime = Date.now();
			var timeElapsed = currentTime - startTime;
			if (timeElapsed < travelTime) {
				var progress = timeElapsed / travelTime;
				var arcProgress = Math.sin(progress * Math.PI);
				self.x = startX + distanceX * progress;
				self.y = startY + distanceY * progress - arcHeight * arcProgress;
				// Adjust shadow size based on jump arc progress
				self.shadowGraphics.width = width * 0.8 * (1 - arcProgress * 0.3);
				self.shadowGraphics.height = height * 0.4 * (1 - arcProgress * 0.3);
			} else {
				self.x = targetX;
				self.y = targetY;
				LK.off('tick', alienTickHandler);
				self.isAlienJumping = false;
				self.moveRight = !self.moveRight; // Toggle moveRight to change the direction for the next move
				// Reset shadow size when Alien lands
				self.shadowGraphics.width = width * 0.8;
				self.shadowGraphics.height = height * 0.4;
				var tileBelow = game.grid.getTileAt(self.x, self.y + tileHeight / 2);
				if (!tileBelow) {
					if (self.parent) {
						self.parent.removeChild(self);
					}
					// Spawn a new Alien in middle of grid
					var middleRow = Math.floor(game.grid.gridSize / 2);
					var middleTile = game.grid.tileArray[middleRow][Math.floor(game.grid.tileArray[middleRow].length / 2)];
					var newAlien = new Alien(middleTile.x, middleTile.y - 150, 180, 180);
					game.grid.addChildAt(newAlien, game.grid.children.length);
					// Trigger the move of the new Alien
					newAlien.move();
				}
			}
		};
		LK.on('tick', alienTickHandler);
		LK.setTimeout(self.move, travelTime + 50);
	};
	self.shadowGraphics = self.attachAsset('zbertShadow', {
		anchorX: 0.5,
		anchorY: 1.0,
		alpha: 0.4
	});
	self.shadowGraphics.width = width * 0.8;
	self.shadowGraphics.height = height * 0.4;
	self.shadowGraphics.y = height * 0.5 + 50;
	var alienGraphics = self.attachAsset('Part24', {
		// Use a different asset for the Alien
		anchorX: 0.5,
		anchorY: 0.5
	});
	alienGraphics.width = width;
	alienGraphics.height = height;
	self.x = gridX;
	self.y = gridY;
});
var Zbert = Container.expand(function (gridX, gridY, width, height) {
	var self = Container.call(this);
	self.isZbertJumping = false;
	self.isHitByBall = false;
	self.move = function (direction) {
		if (self.isZbertJumping || self.isFalling || self.isHitByBall) {
			return;
		}
		self.isZbertJumping = true;
		var moveX = 0;
		var moveY = 0;
		var tileWidth = 250;
		var tileHeight = 270;
		var arcHeight = 130;
		var targetX = self.x;
		var targetY = self.y;
		switch (direction) {
			case 'upLeft':
				targetX -= tileWidth / 2 + 2;
				targetY -= tileHeight - 90;
				break;
			case 'upRight':
				targetX += tileWidth / 2;
				targetY -= tileHeight - 90;
				break;
			case 'downLeft':
				targetX -= tileWidth / 2;
				targetY += tileHeight - 90;
				break;
			case 'downRight':
				targetX += tileWidth / 2;
				targetY += tileHeight - 90;
				break;
		}
		var startX = self.x;
		var startY = self.y;
		var distanceX = targetX - startX;
		var distanceY = targetY - startY;
		var startTime = Date.now();
		var ZtravelTime = 350;
		var zbertTickHandler = function zbertTickHandler() {
			var currentTime = Date.now();
			var timeElapsed = currentTime - startTime;
			if (timeElapsed < ZtravelTime) {
				var progress = timeElapsed / ZtravelTime;
				var arcProgress = Math.sin(progress * Math.PI);
				self.x = startX + distanceX * progress;
				self.y = startY + distanceY * progress - arcHeight * arcProgress;
				// Adjust shadow size based on jump arc progress
				self.shadowGraphics.width = width * 0.8 * (1 - arcProgress * 0.3);
				self.shadowGraphics.height = height * 0.4 * (1 - arcProgress * 0.3);
			} else {
				self.x = targetX;
				self.y = targetY;
				// Reset shadow size when Zbert lands
				self.shadowGraphics.width = width * 0.8;
				self.shadowGraphics.height = height * 0.4;
				LK.off('tick', zbertTickHandler);
				self.isZbertJumping = false;
				var tileBelow = game.grid.getTileAt(self.x, self.y + tileHeight / 2);
				if (tileBelow) {
					tileBelow.flipColor();
					if (game.grid.checkWinCondition()) {
						game.showWin();
					}
				} else {
					var fallToY = game.height - self.height / 2;
					var fallDuration = 4000;
					var fallStartTime = Date.now();
					var zbertFallTickHandler = function zbertFallTickHandler() {
						var currentTime = Date.now();
						var timeElapsed = currentTime - fallStartTime;
						if (timeElapsed < fallDuration) {
							var fallProgress = timeElapsed / fallDuration;
							self.y = startY + 190 + (fallToY - startY) * fallProgress;
							self.shadowGraphics.visible = false; // Hide shadow during fall
							// Attach ZbertParachute to Zbert only if it's not already attached
							if (!self.parachuteGraphics) {
								self.parachuteGraphics = self.attachAsset('ZbertParachute', {
									anchorX: 0.5,
									anchorY: 0.5,
									y: -self.height / 2 - 50
								});
							}
							self.isFalling = true;
						} else {
							self.y = fallToY;
							LK.off('tick', zbertFallTickHandler);
							self.isZbertJumping = false;
							self.isFalling = false;
							self.shadowGraphics.visible = true; // Show shadow again (for the new Zbert)
							// Remove ZbertParachute when Zbert has finished falling and reset isFalling status
							if (self.parachuteGraphics) {
								self.removeChild(self.parachuteGraphics);
								self.parachuteGraphics = null;
								self.isFalling = false;
							}
							reduceLife();
							if (livesCount > 0) {
								self.destroy();
								var bottomTile = game.grid.tileArray[game.grid.gridSize - 1][0];
								// Check if Zbert is already at the spawn point
								var existingZbert = game.grid.children.find(function (child) {
									return child instanceof Zbert && child.x === bottomTile.x && child.y === bottomTile.y - 150;
								});
								// Only create and add a new Zbert if there isn't one already at the spawn point
								if (!existingZbert) {
									var newZbert = new Zbert(bottomTile.x, bottomTile.y - 150, 180, 180);
									game.grid.addChild(newZbert);
								}
							} else {
								LK.showGameOver();
							}
						}
					};
					LK.on('tick', zbertFallTickHandler);
				}
			}
		};
		LK.on('tick', zbertTickHandler);
	};
	self.shadowGraphics = self.attachAsset('zbertShadow', {
		anchorX: 0.5,
		anchorY: 1.0,
		alpha: 0.4
	});
	self.shadowGraphics.width = width * 0.8;
	self.shadowGraphics.height = height * 0.4;
	self.shadowGraphics.y = height * 0.5 + 50;
	self.zbertGraphics = self.attachAsset('Zbert1', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.zbertGraphics.width = width;
	self.zbertGraphics.height = height;
	self.x = gridX;
	self.y = gridY;
});
// Grid class to manage the puzzle grid
var Grid = Container.expand(function () {
	var self = Container.call(this);
	// Method to get the tile at a specific x and y position
	self.getTileAt = function (x, y) {
		for (var i = 0; i < this.tileArray.length; i++) {
			for (var j = 0; j < this.tileArray[i].length; j++) {
				var tile = this.tileArray[i][j];
				if (x >= tile.x - tile.width / 2 && x <= tile.x + tile.width / 2 && y >= tile.y - tile.height / 2 && y <= tile.y + tile.height / 2) {
					return tile;
				}
			}
		}
		return null;
	};
	this.gridSize = 13; // Gridsize control - 13 gives 7 wide middle
	this.tileArray = []; // Array to hold the tiles
	// Initialize the grid with tiles
	self.initGrid = function () {
		var tileWidth = 250;
		var tileHeight = 270;
		for (var i = 0; i < this.gridSize; i++) {
			this.tileArray[i] = []; // Initialize the row in tileArray
			var numTilesInRow = i < 7 ? i + 1 : this.gridSize - i;
			var rowOffset = (this.gridSize - numTilesInRow) * (tileWidth / 2);
			for (var j = 0; j < numTilesInRow; j++) {
				var tile = new Tile(i, j, tileWidth, tileHeight, this.gridSize);
				tile.x = rowOffset + j * tileWidth;
				tile.y = i * (tileHeight - 90);
				this.tileArray[i][j] = tile;
				self.addChild(tile);
				if (i === this.gridSize - 1 && j === numTilesInRow - 1) {
					// Add Zbert after all tiles have been added
					var zbert = self.children.find(function (child) {
						return child instanceof Zbert;
					});
					if (!zbert) {
						zbert = new Zbert(tile.x, tile.y - 150, 180, 180);
					} else {
						zbert.x = tile.x;
						zbert.y = tile.y - 150;
						zbert.isZbertJumping = false; // Ensure Zbert can move immediately
					}
					self.addChild(zbert);
					// Spawn a gem on random tiles except the bottom row
					var spawnGem = function spawnGem() {
						var randomRow = Math.floor(Math.random() * (self.gridSize - 2));
						var randomCol = Math.floor(Math.random() * self.tileArray[randomRow].length);
						var randomTile = self.tileArray[randomRow][randomCol];
						var gem = new Gem(randomTile.x, randomTile.y - 90, 150, 150);
						self.addChild(gem);
						// Set a timer to destroy the gem after 15 seconds
						LK.setTimeout(function () {
							if (gem.parent) {
								if (gem.tileBelow) {
									gem.tileBelow.highlight(gem.tileBelow.color); // Tint the tile with the original colour
								}
							}
							gem.destroy();
						}, 15000);
					};
					// Spawn gems at random intervals
					var spawnInterval = Math.random() * (30000 - 15000) + 15000; // Random time between 15 to 30 seconds
					LK.setInterval(spawnGem, spawnInterval);
				}
			}
		}
	};
	// Check if all tiles are the same color
	self.checkWinCondition = function () {
		var firstColor = this.tileArray[0][0].color;
		for (var i = 0; i < this.gridSize; i++) {
			for (var j = 0; j < this.tileArray[i].length; j++) {
				if (this.tileArray[i][j].color !== targetColours[targetColourIndex]) {
					return false;
				}
			}
		}
		return true;
	};
});
var Tile = Container.expand(function (gridX, gridY, width, height, gridSize) {
	var self = Container.call(this);
	self.gridSize = gridSize;
	self.color = gridX === self.gridSize - 1 && gridY === 0 ? targetColours[targetColourIndex] : 0xe2e0e0; // Set all cells to white apart from the cell Zbert is on in the bottom left corner, set this cell to green
	var tileGraphics = self.attachAsset('tile', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	tileGraphics.width = width;
	tileGraphics.height = height;
	tileGraphics.tint = self.color;
	// Function to highlight the tile
	self.highlight = function (color) {
		tileGraphics.tint = color;
		// Removed the reset of tint to maintain the color while the gem is visible
	};
	// Function to flip the color of the tile
	self.flipColor = function () {
		if (self.color !== targetColours[targetColourIndex]) {
			self.color = targetColours[targetColourIndex];
			tileGraphics.tint = self.color;
			LK.setScore(LK.getScore() + 25);
			scoreDisplay.updateScore(LK.getScore());
		}
	};
});
var LevelManager = Container.expand(function () {
	var self = Container.call(this);
	self.completedLevels = 0;
	self.showWin = function () {
		LK.effects.flashScreen(0xffff00, 1000); // Flash the screen green for 1 second
		setBackgroundByNumber(Math.floor(Math.random() * 6) + 1);
		if (game.grid.checkWinCondition()) {
			// Move to the next target colour
			if (++targetColourIndex >= targetColours.length) {
				targetColourIndex = 0;
				self.completedLevels++;
				maxBBalls = Math.min(6, maxBBalls + 1);
				bballTravelTimeAddition = Math.min(600, bballTravelTimeAddition + 100);
				// Reset the grid for a new level with the first target colour
				game.grid.initGrid();
			}
			// Reset the grid for a new level with the next target colour
			setBackgroundByNumber(Math.floor(Math.random() * 6) + 1);
			game.grid.initGrid();
			game.grid.x = (2048 - tileWidth * game.grid.gridSize) / 2 + tileWidth / 2;
			game.grid.y = (2732 - tileHeight * game.grid.gridSize) / 2 + tileHeight / 2 + 600;
			// Reset Zbert to the bottom tile
			var bottomTile = game.grid.tileArray[game.grid.gridSize - 1][0];
			var zbert = game.grid.children.find(function (child) {
				return child instanceof Zbert;
			});
			zbert.x = bottomTile.x;
			zbert.y = bottomTile.y - 150;
			zbert.isZbertJumping = false;
			// Remove any BBalls and Gems from the screen
			game.grid.children.slice().forEach(function (child) {
				if (child instanceof BBall || child instanceof Gem) {
					child.destroy();
				}
			});
			// Set image to match new target colour
			topRightImageGraphics.tint = targetColours[targetColourIndex];
		}
	};
});
var Gem = Container.expand(function (gridX, gridY, width, height) {
	var self = Container.call(this);
	var gemGraphics = self.attachAsset('gem', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	gemGraphics.width = width;
	gemGraphics.height = height;
	self.x = gridX;
	self.y = gridY;
	self.tileBelow = game.grid.getTileAt(self.x + 100, self.y + 125);
	if (self.tileBelow) {
		self.tileBelow.highlight(0xFFD700); // Tint the tile gold
	}
	// Function to collect the gem
	self.prizeOptions = ['score', 'extraLife', 'slowDownBalls'];
	self.collect = function () {
		// Randomly select a prize from the prize options
		var selectedPrize = self.prizeOptions[Math.floor(Math.random() * self.prizeOptions.length)];
		switch (selectedPrize) {
			case 'score':
				var scoreBonus = Math.floor(Math.random() * (1000 - 300 + 1)) + 300;
				LK.setScore(LK.getScore() + scoreBonus);
				game.showRewardMessage('SCORE BONUS: ' + scoreBonus);
				break;
			case 'extraLife':
				if (livesCount < 5) {
					livesCount++;
					livesDisplay[livesCount - 1].visible = true;
					game.showRewardMessage('EXTRA LIFE!');
				} else {
					LK.setScore(LK.getScore() + 425);
					game.showRewardMessage('SCORE BONUS: 425');
				}
				break;
			case 'slowDownBalls':
				var originalTravelTime = bballTravelTimeAddition;
				bballTravelTimeAddition = 800;
				LK.setTimeout(function () {
					bballTravelTimeAddition = originalTravelTime;
				}, 40000);
				game.showRewardMessage('SLOWED DOWN!');
				break;
		}
		if (self.tileBelow.color !== targetColours[targetColourIndex]) {
			self.tileBelow.flipColor(); // Flip to target color if not already flipped
		} else {
			self.tileBelow.color = 0xe2e0e0; // Reset to start color if tile was already flipped
			self.tileBelow.highlight(self.tileBelow.color);
		}
		self.destroy();
	};
});
var ZbertExpletive = Container.expand(function (x, y) {
	var self = Container.call(this);
	var expletiveGraphics = self.attachAsset('ZbertExpletive', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.x = x;
	self.y = y;
});
var ScoreText = Container.expand(function () {
	var self = Container.call(this);
	var scoreTxt = new Text2('0', {
		size: 120,
		fill: "#ffffff",
		weight: 800,
		dropShadow: true,
		dropShadowColor: '#000000',
		dropShadowAngle: Math.PI / 6,
		dropShadowDistance: 5
	});
	scoreTxt.anchor.set(0.5, 0);
	self.addChild(scoreTxt);
	self.updateScore = function (newScore) {
		scoreTxt.setText(newScore.toString());
	};
});
var Life = Container.expand(function (x, y, width, height) {
	var self = Container.call(this);
	self.attachAsset('Zbert2', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: x,
		y: y
	}).scale.set(0.5);
});
var StarDisplay = Container.expand(function (assetId, x, y, scale, rotation) {
	var self = Container.call(this);
	if (assetId === 'ZB1' || assetId === 'ZB2') {
		var circleGraphics = self.attachAsset('whiteCircle', {
			anchorX: 0.5,
			anchorY: 0.5,
			x: x,
			y: y
		});
		// Ensure the circle is behind ZB1 and ZB2 by adding it before their graphics
		self.addChildAt(circleGraphics, 0);
	}
	var starGraphics = self.attachAsset(assetId, {
		anchorX: 0.5,
		anchorY: 0.5,
		x: x,
		y: y
	});
	starGraphics.scale.set(scale);
	starGraphics.rotation = rotation;
});

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

/**** 
* Game Code
****/
// Instantiate and display stars on the screen
var starDisplay1 = game.addChild(new StarDisplay('star1', 180, 2300, 1, -0.6));
var starDisplay2 = game.addChild(new StarDisplay('star2', 340, 2550, 1, 2.6));
var starDisplay3 = game.addChild(new StarDisplay('star3', 1850, 2340, 1, 0.6));
var starDisplay4 = game.addChild(new StarDisplay('star4', 1700, 2580, 1, -2.6));
var starDisplay4 = game.addChild(new StarDisplay('ZB1', 1770, 2450, 1, 0));
var starDisplay4 = game.addChild(new StarDisplay('ZB2', 260, 2430, 1, 0));
// Function to reduce lives and handle game over
function reduceLife() {
	livesCount--;
	if (livesCount < 0) {
		LK.showGameOver();
	} else {
		// Update lives display
		livesDisplay[livesCount].visible = false;
	}
}
var livesCount = 5;
var livesDisplay = [];
for (var i = 0; i < livesCount; i++) {
	var life = new Life(2048 - 200 - i * 100, 500, 90, 70);
	livesDisplay.push(life);
	game.addChild(life);
}
var scoreDisplay = new ScoreText();
LK.gui.top.addChild(scoreDisplay);
// Grid class to manage the puzzle grid
// Function to select and set background by variable number
function controlBBallMovement(direction) {
	var bball = game.grid.children.find(function (child) {
		return child instanceof BBall;
	});
	if (bball) {
		bball.move(direction);
	}
}
//var tileArray = [];
var maxBBalls = 1;
var levelManager = new LevelManager();
var maxAliens = levelManager.completedLevels >= 3 ? 2 : 1;
var bballTravelTimeAddition = 0;
var targetColours = [0x77dd77, 0x779ecb, 0xfff49c, 0xcb99c9, 0xaec6cf, 0xfdfd96, 0x836953, 0xb39eb5, 0xffb347, 0xb19cd9, 0xff6961];
var targetColourIndex = 0;
var setBackgroundByNumber = function setBackgroundByNumber() {
	var backgroundNumber = Math.floor(Math.random() * 6) + 1;
	// Remove the current background if it exists
	if (game.background) {
		game.removeChild(game.background);
	}
	// Create a new background asset based on the provided number
	game.background = game.createAsset('backgroundImage' + backgroundNumber, {});
	game.background.width = 3000;
	game.background.height = 3000;
	game.background.x = 2048 / 2 - game.background.width / 2;
	game.background.y = 2732 / 2 - game.background.height / 2;
	// Add the new background to the game
	game.addChildAt(game.background, 0);
};
// Set an initial background
setBackgroundByNumber(2);
// Add image to top right corner of screen
var topRightImage = game.addChild(new Container());
topRightImage.x = 2048 - 200 - LK.getAsset('imageId', {}).width;
topRightImage.y = 300;
// Add new Text2 object for 'Change To:' label
var changeToText = new Text2('CHANGE TO:', {
	size: 60,
	fill: "#ffffff",
	weight: 800,
	dropShadow: true,
	dropShadowColor: '#000000',
	dropShadowAngle: Math.PI / 6,
	dropShadowDistance: 5
});
changeToText.anchor.set(0.5, 0.0);
changeToText.x = 2048 / 2 + 140; // Center x coordinate
changeToText.y = 40; // y coordinate 150 pixels from top
LK.gui.addChild(changeToText);
var topRightImageGraphics = topRightImage.attachAsset('imageId', {
	anchorX: 0.5,
	anchorY: 0.5
});
topRightImageGraphics.tint = targetColours[targetColourIndex];
// Add Corner asset to the screen
var CCupL = game.addChild(new ControlButton('CCupL', -125, 2478, -45, 'upLeft'));
var CCupR = game.addChild(new ControlButton('CCupR', 2170, 2507, 45, 'upRight'));
var CCdownL = game.addChild(new ControlButton('CCdownR', 340, 2769, -45, 'downRight'));
var CCdownR = game.addChild(new ControlButton('CCdownL', 1690, 2805, 45, 'downLeft'));
// Add the grid to the game
game.grid = game.addChild(new Grid());
game.grid.initGrid();
var tileWidth = 250;
var tileHeight = 270;
game.grid.x = (2048 - tileWidth * game.grid.gridSize) / 2 + tileWidth / 2;
game.grid.y = (2732 - tileHeight * game.grid.gridSize) / 2 + tileHeight / 2 + 600;
// Instantiate LevelManager
var levelManager = new LevelManager();
// Method to show reward messages
game.showRewardMessage = function (message) {
	var rewardMessage = new Text2(message, {
		size: 80,
		fill: "#ffffff",
		weight: 800,
		dropShadow: true,
		dropShadowColor: '#000000',
		dropShadowAngle: Math.PI / 6,
		dropShadowDistance: 5
	});
	rewardMessage.anchor.set(0.5, 0.5);
	rewardMessage.x = 750; // Center x coordinate
	rewardMessage.y = 750; // y coordinate
	LK.gui.addChild(rewardMessage);
	// Fade out the reward message over 3 seconds
	var fadeOutStartTime = Date.now();
	var fadeOutDuration = 3000;
	var fadeOutTickHandler = function fadeOutTickHandler() {
		var currentTime = Date.now();
		var timeElapsed = currentTime - fadeOutStartTime;
		if (timeElapsed < fadeOutDuration) {
			var alpha = 1 - timeElapsed / fadeOutDuration;
			rewardMessage.alpha = alpha;
		} else {
			LK.off('tick', fadeOutTickHandler);
			LK.gui.removeChild(rewardMessage);
		}
	};
	LK.on('tick', fadeOutTickHandler);
};
game.showWin = levelManager.showWin;
// Method to spawn new BBalls at random intervals between 4 to 10 seconds
function spawnEntities() {
	var spawnInterval = Math.random() * (10000 - 4000) + 4000; // Random time between 4 to 10 seconds
	LK.setTimeout(function () {
		var bballCount = game.grid.children.reduce(function (count, child) {
			return count + (child instanceof BBall ? 1 : 0);
		}, 0);
		var alienCount = game.grid.children.reduce(function (count, child) {
			return count + (child instanceof Alien ? 1 : 0);
		}, 0);
		if (bballCount < maxBBalls) {
			var bball = new BBall(game.grid.tileArray[0][0].x, game.grid.tileArray[0][0].y - 150, 180, 180);
			game.grid.addChild(bball);
			bball.move();
		}
		if (alienCount < maxAliens) {
			var middleRow = Math.floor(game.grid.gridSize / 2);
			var middleTile = game.grid.tileArray[middleRow][Math.floor(game.grid.tileArray[middleRow].length / 2)];
			var alien = new Alien(middleTile.x, middleTile.y - 150, 180, 180);
			game.grid.addChild(alien);
			alien.move();
		}
		spawnEntities(); // Recursively call to continue spawning
	}, spawnInterval);
}
// Start spawning entities
spawnEntities();
LK.on('tick', function () {
	var zbert = game.grid.children.find(function (child) {
		return child instanceof Zbert;
	});
	var bball = game.grid.children.find(function (child) {
		return child instanceof BBall;
	});
	var gem = game.grid.children.find(function (child) {
		return child instanceof Gem;
	});
	var alien = game.grid.children.find(function (child) {
		return child instanceof Alien;
	});
	if (zbert && (bball || alien)) {
		var zbertCenter = {
			x: zbert.x + zbert.width / 2,
			y: zbert.y + zbert.height / 2 - 150
		};
		var bballCenter = bball ? {
			x: bball.x + bball.width / 2,
			y: bball.y + bball.height / 2
		} : null;
		var alienCenter = alien ? {
			x: alien.x + alien.width / 2,
			y: alien.y + alien.height / 2
		} : null;
		var zbertBballCollision = bball && zbert.intersects(bball);
		var zbertAlienCollision = alien && zbert.intersects(alien);
		if ((zbertBballCollision || zbertAlienCollision) && !zbert.isFalling && !zbert.isHitByBall) {
			// Stop Zbert and BBall movement
			zbert.isHitByBall = true;
			// Clear all BBalls and Aliens from the screen
			var bballs = game.grid.children.filter(function (child) {
				return child instanceof BBall;
			});
			var aliens = game.grid.children.filter(function (child) {
				return child instanceof Alien;
			});
			bballs.forEach(function (b) {
				b.destroy();
			});
			aliens.forEach(function (a) {
				a.destroy();
			});
			// Display ZbertExpletive above Zbert
			var expletive = zbert.addChild(new ZbertExpletive(55, -zbert.height + 40));
			// Pause for 2 seconds
			LK.setTimeout(function () {
				// After pause, reset Zbert to start and remove a life
				reduceLife();
				if (livesCount <= 0) {
					LK.showGameOver();
				} else {
					var bottomTile = game.grid.tileArray[game.grid.gridSize - 1][0];
					zbert.x = bottomTile.x;
					zbert.y = bottomTile.y - 150;
					zbert.isZbertJumping = false; // Allow Zbert to move
					// Delay resetting isHitByBall flag
					LK.setTimeout(function () {
						zbert.isHitByBall = false; // Reset hit by ball status after 2 seconds
						bballs.forEach(function (b) {
							b.isBBallJumping = false;
						});
						aliens.forEach(function (a) {
							a.isAlienJumping = false;
						});
					}, 1000);
					expletive.destroy(); // Remove expletive
					// Restart spawning entities
					spawnEntities();
				}
			}, 2000);
		}
	}
	if (gem && zbert.intersects(gem)) {
		gem.collect();
	}
	// Rest of the tick code...
});

===================================================================
--- original.js
+++ change.js
@@ -448,9 +448,9 @@
 var LevelManager = Container.expand(function () {
 	var self = Container.call(this);
 	self.completedLevels = 0;
 	self.showWin = function () {
-		LK.effects.flashScreen(0xFF0000, 1000); // Flash the screen green for 1 second
+		LK.effects.flashScreen(0xffff00, 1000); // Flash the screen green for 1 second
 		setBackgroundByNumber(Math.floor(Math.random() * 6) + 1);
 		if (game.grid.checkWinCondition()) {
 			// Move to the next target colour
 			if (++targetColourIndex >= targetColours.length) {
@@ -641,9 +641,9 @@
 		bball.move(direction);
 	}
 }
 //var tileArray = [];
-var maxBBalls = 2;
+var maxBBalls = 1;
 var levelManager = new LevelManager();
 var maxAliens = levelManager.completedLevels >= 3 ? 2 : 1;
 var bballTravelTimeAddition = 0;
 var targetColours = [0x77dd77, 0x779ecb, 0xfff49c, 0xcb99c9, 0xaec6cf, 0xfdfd96, 0x836953, 0xb39eb5, 0xffb347, 0xb19cd9, 0xff6961];
@@ -713,10 +713,10 @@
 		dropShadowAngle: Math.PI / 6,
 		dropShadowDistance: 5
 	});
 	rewardMessage.anchor.set(0.5, 0.5);
-	rewardMessage.x = 2048 / 2; // Center x coordinate
-	rewardMessage.y = 1500; // y coordinate
+	rewardMessage.x = 750; // Center x coordinate
+	rewardMessage.y = 750; // y coordinate
 	LK.gui.addChild(rewardMessage);
 	// Fade out the reward message over 3 seconds
 	var fadeOutStartTime = Date.now();
 	var fadeOutDuration = 3000;