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

/**** 
* Classes
****/ 
// Class for Bubbles - optimized for performance
var Bubble = Container.expand(function () {
	var self = Container.call(this);
	var bubbleGraphics = self.attachAsset('bubble', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = -5;
	self.lastX = 0;
	self.lastY = 0;
	self.update = function () {
		// Store last position
		self.lastX = self.x;
		self.lastY = self.y;
		// Move bubble
		self.x += self.speed;
		// Check for intersection with any floor
		var intersectingFloor = null;
		for (var i = 0; i < floors.length; i++) {
			if (self.intersects(floors[i])) {
				intersectingFloor = floors[i];
				break;
			}
		}
		// Handle collision with floor
		if (intersectingFloor) {
			// Create a PoppedBubble at the bubble's position
			var pop = game.addChild(new PoppedBubble());
			pop.x = self.x;
			pop.y = self.y;
			// Remove from bubbles array before destroying
			var bubbleIndex = bubbles.indexOf(self);
			if (bubbleIndex !== -1) {
				bubbles.splice(bubbleIndex, 1);
			}
			// Destroy the bubble
			self.destroy();
			// Destroy the PoppedBubble after 0.5 seconds
			LK.setTimeout(function () {
				pop.destroy();
			}, 500);
		}
	};
});
var CapturingBubble = Container.expand(function () {
	var self = Container.call(this);
	var bubbleGraphics = self.attachAsset('bubble', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.alpha = 0.5;
	self.scaleX = 2;
	self.scaleY = 2;
	self.update = function () {};
});
//<Assets used in the game will automatically appear here>
// Class for the Dragon character - optimized for performance
var Dragon = Container.expand(function () {
	var self = Container.call(this);
	self.dragonGraphics = self.attachAsset('dragon', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.isIntersectingBubble = false;
	self.lastWasIntersecting = false;
	self.lastX = 0;
	self.lastY = 0;
	self.shootBubble = function () {
		// Create new bubble and ensure it's properly initialized
		var bubble = new Bubble();
		bubble.x = self.x + 200 * self.scale.x;
		bubble.y = self.y - 5;
		bubble.lastX = bubble.x;
		bubble.lastY = bubble.y;
		// If the dragon is looking right, the bubble should move to the right
		if (self.scale.x == 1) {
			bubble.speed = 25;
		} else {
			// If the dragon is looking left, the bubble should move to the left
			bubble.speed = -25;
		}
		// Add bubble to game display list first to ensure it's rendered
		game.addChild(bubble);
		// Ensure bubbles array exists before trying to push to it
		if (!bubbles) {
			bubbles = [];
		}
		// Always add bubble to tracking array
		bubbles.push(bubble);
		// Play bubble sound when a bubble is shot
		LK.getSound('bubble').play();
	};
});
// Class for Pop - optimized version
var PoppedBubble = Container.expand(function () {
	var self = Container.call(this);
	var popGraphics = self.attachAsset('poppedBubble', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x09899d
});

/**** 
* Game Code
****/ 
function tweenDragonContainer() {
	tween(dragonOnContainer, {
		y: dragonOnContainer.y + 300
	}, {
		duration: 1000,
		onFinish: function onFinish() {
			tween(dragonOnContainer, {
				y: dragonOnContainer.y - 300
			}, {
				duration: 1000
			});
		}
	});
}
var started = false; // Initialize started flag
var intervalId = LK.setInterval(function () {
	if (!started) {
		tweenDragonContainer();
	} else {
		LK.clearInterval(intervalId); // Clear interval if started is true
	}
}, 4000);
var controlPanel = new Container();
var panelBackground = LK.getAsset('game_background', {
	anchorX: 0.5,
	anchorY: 0.5,
	x: 2048 / 2,
	y: 2732 / 2,
	alpha: 0.8
});
controlPanel.addChild(panelBackground);
var instructionsText = new Text2('INSTRUCTIONS', {
	size: 100,
	fill: 0xffffff,
	align: "center",
	font: "Comic Sans MS",
	fontWeight: "bold"
});
instructionsText.anchor.set(0.5, 0.5);
instructionsText.x = 2048 / 2;
instructionsText.y = 75;
controlPanel.addChild(instructionsText);
// Rainbow color array
var rainbowColors = [0xFF0000, 0xFF7F00, 0xFFFF00, 0x00FF00, 0x0000FF, 0x4B0082, 0x8B00FF];
var colorIndex = 0;
// Function to cycle through rainbow colors
function cycleRainbowColors() {
	instructionsText.tint = rainbowColors[colorIndex];
	colorIndex = (colorIndex + 1) % rainbowColors.length;
}
// Set interval to change color less frequently to improve performance
LK.setInterval(cycleRainbowColors, 1000);
var controlText = new Text2('- Click on 🐲 to shoot 🫧\n- Click above the 🐲 to jump ⬆️.\n- The higher you click, the bigger the jump ⬆️⬆️!', {
	size: 85,
	// Increased size for better visibility
	fill: 0x000000,
	align: "center",
	font: "Comic Sans MS" // Adding a cool font and bold style
});
controlText.anchor.set(0.5, 0.5);
controlText.x = 2048 / 2;
controlText.y = 400;
controlPanel.addChild(controlText);
var understoodButtonBackgroundBg = LK.getAsset('understoodBg', {
	anchorX: 0.5,
	anchorY: 0.5,
	x: 2048 / 2,
	y: 800,
	width: 2000,
	alpha: 0.5
});
controlPanel.addChild(understoodButtonBackgroundBg);
var dragonOnContainer = LK.getAsset('dragon', {
	anchorX: 0.5,
	anchorY: 0.5,
	x: 2048 / 2,
	y: 1200,
	scaleX: 2,
	scaleY: 2
});
controlPanel.addChild(dragonOnContainer);
var bubbleOnContainer = LK.getAsset('bubble', {
	anchorX: 0.5,
	anchorY: 0.5,
	scaleX: 2,
	scaleY: 2,
	alpha: 0.35
});
dragonOnContainer.addChild(bubbleOnContainer);
var understoodButton = new Text2('Click anywhere to start', {
	size: 150,
	fill: 0x1570e0,
	align: "center"
});
understoodButton.anchor.set(0.5, 0.5);
understoodButton.x = 2048 / 2;
understoodButton.y = 800;
controlPanel.addChild(understoodButton);
game.addChild(controlPanel);
// Add event listener to the 'Understood' button
understoodButton.interactive = true;
understoodButton.buttonMode = true;
game.down = function (x, y, obj) {
	controlPanel.destroy();
	startGame();
};
// Properly initialize all global variables to prevent undefined errors
var bubbles = []; // Initialize bubbles array to store bubble instances
var floors = []; // Initialize floors array to store floor instances
var behaviours = {}; // Initialize behaviours object
var enemies = [];
var capturingBubbles = [];
var jumpStartY = 0;
var isJumping = false; // Initialize jumping state
var canJump = true; // Initialize jump permission flag
var isFalling = false; // Initialize falling state
var lastShot = 0; // Track the last time a bubble was shot
var lastClick = 0; // Track the last time the screen was clicked
var jumpStartTime = 0; // Initialize jump start time
var dragon; // Will be initialized later
var background; // Will be initialized with a background image
function startGame() {
	started = true;
	var level = 1;
	function restartGame() {
		// Ensure floors array is initialized if it somehow became null or undefined
		if (!floors) {
			floors = [];
		}
		// Clear existing platforms and enemies
		floors.forEach(function (floor) {
			floor.destroy();
		});
		floors = [];
		if (!enemies) {
			enemies = [];
		}
		enemies.forEach(function (enemy) {
			enemy.destroy();
		});
		enemies = [];
		// Recreate floors at the bottom, left, and right margins
		for (var i = 0; i < 21; i++) {
			var floor = LK.getAsset('floor', {
				anchorX: 0.5,
				anchorY: 0.5,
				x: i * 100,
				y: 2732 - 30
			});
			game.addChild(floor);
			floors.push(floor);
		}
		for (var j = 0; j < 27; j++) {
			var leftFloor = LK.getAsset('floor', {
				anchorX: 0.5,
				anchorY: 0.5,
				x: 0,
				y: j * 100
			});
			game.addChild(leftFloor);
			floors.push(leftFloor);
		}
		for (var k = 0; k < 27; k++) {
			var rightFloor = LK.getAsset('floor', {
				anchorX: 0.5,
				anchorY: 0.5,
				x: 2048 - 50,
				y: k * 100
			});
			game.addChild(rightFloor);
			floors.push(rightFloor);
		}
		// Destroy the existing dragon
		dragon.destroy();
		// Recreate the dragon and add it to the game
		dragon = game.addChild(new Dragon());
		// Reposition dragon at the bottom
		dragon.x = 1024; // Center horizontally
		// Position the dragon precisely on the bottom floor at the start
		var bottomFloorY = 2732 - 30; // Y coordinate of the bottom floor
		// Ensure floors array is populated before accessing index 0
		var bottomFloorTop = floors.length > 0 ? bottomFloorY - floors[0].height / 2 : bottomFloorY; // Top edge of the bottom floor (assuming all bottom floors have same height)
		dragon.y = bottomFloorTop - dragon.height / 2; // Position dragon so its bottom aligns with floor top
		dragon.lastY = dragon.y; // Initialize lastY position
		dragon.lastX = dragon.x; // Initialize lastX position
		// Reset states
		isFalling = false;
		isJumping = false;
		canJump = true;
		// Add new platforms and enemies for the new level
		for (var j = 0; j < platformYPositions.length; j++) {
			var platformLength = Math.floor(Math.random() * (maxPlatformLength - minPlatformLength + 1)) + minPlatformLength;
			var startX = Math.floor(Math.random() * (2048 - platformLength * 100));
			var startY = platformYPositions[j];
			var randomTint = Math.floor(Math.random() * 16777215);
			for (var i = 0; i < platformLength; i++) {
				var newX = startX + i * 100;
				if (newX > 1900 || newX < 120) {
					continue;
				}
				var platform = LK.getAsset('floor', {
					anchorX: 0.5,
					anchorY: 0.5,
					x: startX + i * 100,
					y: platformYPositions[j]
				});
				platform.tint = randomTint;
				game.addChild(platform);
				floors.push(platform);
			}
			var enemyType = 'enemy' + (i % 5 + 1);
			var behaviour = behaviours[enemyType] || easingFunctions[Math.floor(Math.random() * easingFunctions.length)];
			behaviours[enemyType] = behaviour;
			var enemy = LK.getAsset(enemyType, {
				anchorX: 0.5,
				anchorY: 0.5,
				x: startX + 100,
				y: platformYPositions[j] - 100,
				type: enemyType
			});
			if (enemyType === 'enemy5' || enemyType === 'enemy2') {
				enemy.tint = Math.floor(Math.random() * 0x7FFFFF) + 0x808080;
			}
			enemy.captured = false;
			game.addChild(enemy);
			enemies.push(enemy);
		}
	}
	var background = LK.getAsset('pixel_background_' + level.toString(), {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 2048 / 2,
		y: 2732 / 2,
		alpha: 0.95
	});
	game.addChild(background);
	// Simplified utility function that replaces all the complex array handlers
	function getMinMaxFromFloors(floors, property) {
		var min = Infinity;
		var max = -Infinity;
		for (var i = 0; i < floors.length; i++) {
			var value = floors[i][property];
			if (value < min) {
				min = value;
			}
			if (value > max) {
				max = value;
			}
		}
		return {
			min: min,
			max: max
		};
	}
	var jumpStartTime; // Declare jumpStartTime to track the start of the jump
	var easingFunctions = [tween.linear, tween.easeIn, tween.easeOut, tween.easeInOut, tween.bounceIn, tween.bounceOut, tween.bounceInOut, tween.elasticIn, tween.elasticOut, tween.elasticInOut, tween.cubicIn, tween.cubicOut, tween.cubitInOut, tween.expoIn, tween.expoOut, tween.expoInOut, tween.sineIn, tween.sineOut, tween.sineInOut];
	LK.playMusic('music');
	function isStandingOnFloor() {
		// Check if the dragon is currently standing on a floor
		var dragonBottom = dragon.y + dragon.height / 2;
		var dragonLeft = dragon.x - dragon.width / 2;
		var dragonRight = dragon.x + dragon.width / 2;
		// Set a small tolerance for vertical overlap to determine 'standing'
		var standingTolerance = 15;
		for (var i = 0; i < floors.length; i++) {
			var floor = floors[i];
			var floorTop = floor.y - floor.height / 2;
			var floorLeft = floor.x - floor.width / 2;
			var floorRight = floor.x + floor.width / 2;
			// Check for horizontal overlap between dragon and floor
			if (dragonRight > floorLeft && dragonLeft < floorRight) {
				// Check if the dragon's bottom is at or just below the top of the floor
				if (Math.abs(dragonBottom - floorTop) <= standingTolerance && dragonBottom > floorTop) {
					return true; // The dragon is standing on this floor
				}
			}
		}
		return false; // The dragon is not standing on any floor
	}
	function updateFall() {
		// Handles the dragon falling due to gravity and landing on floors.
		if (isFalling) {
			// Store the dragon's vertical position *before* applying gravity
			dragon.lastY = dragon.y;
			// Apply gravity effect by increasing the Y position
			dragon.y += 15; // Gravity speed
			// Calculate dragon position properties after gravity
			var dragonBottom = dragon.y + dragon.height / 2;
			var dragonLeft = dragon.x - dragon.width / 2;
			var dragonRight = dragon.x + dragon.width / 2;
			// Check for collision with floors
			for (var i = 0; i < floors.length; i++) {
				var floor = floors[i];
				var floorTop = floor.y - floor.height / 2;
				var floorBottom = floor.y + floor.height / 2; // Need floor bottom too
				var floorLeft = floor.x - floor.width / 2;
				var floorRight = floor.x + floor.width / 2;
				// Check for horizontal overlap
				if (dragonRight > floorLeft && dragonLeft < floorRight) {
					// Check if the dragon's bottom crossed the floor's top edge this frame
					if (dragon.lastY + dragon.height / 2 <= floorTop && dragonBottom >= floorTop) {
						// Landing successful - dragon hit the top of this floor
						isJumping = false; // Stop jumping if it was active
						isFalling = false; // Stop falling
						canJump = true; // Allow jumping again
						// Snap the dragon precisely onto the floor top
						dragon.y = floorTop - dragon.height / 2;
						// Update lastY to the new position
						dragon.lastY = dragon.y;
						return; // Exit the function as the dragon has landed
					}
				}
			}
			// If the dragon goes below the bottom of the screen
			if (dragon.y > 2732 + dragon.height / 2) {
				// Play game over sound
				LK.getSound('gameover').play();
				// Animate the dragon falling down further and show game over
				tween(dragon, {
					y: 2732 + dragon.height
				}, {
					duration: 500,
					easing: tween.linear,
					onFinish: function onFinish() {
						LK.showGameOver();
					}
				});
			}
		}
	}
	//<Assets used in the game will automatically appear here>
	// Handle mouse move events to move the dragon
	game.move = function (x, y, obj) {
		// Ignore the event if the target is outside the screen or close to its margins
		if (x > 150 && x < 2048 - 200) {
			// Set the target x position for the dragon
			dragon.targetX = x;
		}
	};
	var isFalling = false; // Initialize isFalling to track dragon's fall state
	var dragon = game.addChild(new Dragon());
	dragon.x = 1024; // Center horizontally
	// Position the dragon precisely on the bottom floor at the start
	var bottomFloorY = 2732 - 30; // Y coordinate of the bottom floor
	// Ensure floors array is populated before accessing index 0
	var bottomFloorTop = floors.length > 0 ? bottomFloorY - floors[0].height / 2 : bottomFloorY; // Top edge of the bottom floor
	dragon.y = bottomFloorTop - dragon.height / 2; // Position dragon so its bottom aligns with floor top
	dragon.lastY = dragon.y; // Initialize lastY position
	dragon.lastX = dragon.x; // Initialize lastX position
	isFalling = false; // Ensure dragon doesn't start in falling state
	isJumping = false; // Ensure dragon doesn't start in jumping state
	canJump = true; // Dragon should be able to jump immediately if on floor
	// Handle game updates with improved frame handling
	game.update = function () {
		// Always check if dragon should be falling first, before any other updates
		var standingOnFloor = isStandingOnFloor(); // Check standing state *once* per frame
		// State transitions based on standing check first - must come before movement
		if (standingOnFloor) {
			// Dragon is standing on a floor
			if (isFalling) {
				// Just landed from a fall
				isFalling = false;
				canJump = true;
			}
			if (isJumping) {
				// Landed during a jump
				isJumping = false;
				canJump = true;
			}
			// Standing safely - update last position
			dragon.lastY = dragon.y;
		} else {
			// Not standing on a floor
			if (!isJumping) {
				// If not jumping, should be falling
				if (!isFalling) {
					// Starting to fall
					isFalling = true;
					dragon.lastY = dragon.y;
				}
			}
		}
		// Apply movement only after state is determined
		if (isJumping) {
			updateJump();
		} else if (isFalling) {
			updateFall();
		}
		// Horizontal movement - after vertical position is established
		if (dragon.targetX !== undefined) {
			var increment = (dragon.targetX - dragon.x) / 5;
			if (Math.abs(dragon.targetX - dragon.x) > 1) {
				dragon.x += increment;
			}
			// Update dragon's visual orientation
			if (Math.abs(increment) > 0.1) {
				dragon.scale.x = increment < 0 ? -1 : 1;
			}
		}
		// Update last X position
		dragon.lastX = dragon.x;
		// Update other game elements
		updateBubbles();
		if (LK.ticks % 3 === 0) {
			updateEnemiesMovement();
		}
		// Game Over Check
		if (game.gameOverTriggered && !game.gameOverShowing) {
			game.gameOverShowing = true;
		}
	};
	// Handle touch events for shooting bubbles
	var lastShot = 0;
	var lastClick = 0;
	var isJumping = false; // Add a variable to track if the dragon is jumping 
	var canJump = true; // Initialize canJump flag to allow jumping
	game.down = function (x, y, obj) {
		var now = Date.now();
		if (y < dragon.y - dragon.height && canJump && !isJumping) {
			isJumping = true; // Set isJumping to true when the dragon starts jumping
			// Play jump sound when the dragon starts jumping
			LK.getSound('jump').play();
			jumpStartY = y; // Capture the Y position of the mouse click
			jumpStartTime = Date.now(); // Initialize jump start time
		} else if (!isJumping) {
			// Reduce cooldown for more responsive shooting and fix bubble creation
			if (now - lastShot > 300) {
				// Ensure dragon exists before calling shootBubble
				if (dragon && typeof dragon.shootBubble === 'function') {
					dragon.shootBubble();
					lastShot = now;
				}
			}
		}
		lastClick = now;
	};
	function updateEnemiesMovement() {
		// Process all enemies every frame to ensure consistent movement
		for (var i = 0; i < enemies.length; i++) {
			var enemy = enemies[i];
			if (!enemy) {
				continue;
			}
			if (enemy.captured) {
				if (enemy.isMoving) {
					tween.stop(enemy);
					enemy.isMoving = false;
					enemy.floating = true;
				} else if (enemy.floating) {
					var enemyRef = enemy; // Create a strong reference to avoid context loss
					// Store reference to current enemy in a closure variable
					(function (currentEnemy) {
						tween(currentEnemy, {
							y: 100
						}, {
							duration: 5000,
							easing: tween.linear,
							onFinish: function onFinish() {
								// Use the closure variable instead of 'this'
								if (currentEnemy && currentEnemy.children && currentEnemy.children[1]) {
									currentEnemy.children[1].tint = 0xbf5555;
								}
								if (enemies.length === 0) {
									if (level < 5) {
										level++;
										background.destroy(); // Remove the previous background
										background = LK.getAsset('pixel_background_' + level.toString(), {
											anchorX: 0.5,
											anchorY: 0.5,
											x: 2048 / 2,
											y: 2732 - background.height / 2,
											alpha: 0.95
										});
										game.addChild(background); // Add the new background
										// Combined level text creation to reduce object creation
										var levelText = new Text2('LEVEL ' + level.toString(), {
											size: 200,
											fill: 0xFFFFFF
										});
										levelText.anchor.set(0.5, 0.5);
										levelText.x = 2048 / 2;
										levelText.y = 2732 / 2;
										game.addChild(levelText);
										LK.setTimeout(function () {
											levelText.destroy();
										}, 2000);
										// Restart game with new platforms and enemies
										restartGame();
									} else {
										LK.showYouWin();
									}
								}
							}
						});
					})(enemyRef);
				}
			} else {
				// Initialize movement if not already moving
				if (!enemy.isMoving && !enemy.tweenInitialized) {
					enemy.isMoving = true;
					enemy.tweenInitialized = true;
					// Find all platform floors for this enemy
					var platformFloors = [];
					var platformY = enemy.y + 100;
					for (var j = 0; j < floors.length; j++) {
						if (Math.abs(floors[j].y - platformY) < 10 && floors[j].x > 0 && floors[j].x < 2048 - 50) {
							platformFloors.push(floors[j]);
						}
					}
					// Only proceed if we found platform floors
					if (platformFloors.length > 0) {
						// Find min and max X positions
						var startX = 2048;
						var endX = 0;
						for (var j = 0; j < platformFloors.length; j++) {
							if (platformFloors[j].x < startX) {
								startX = platformFloors[j].x;
							}
							if (platformFloors[j].x > endX) {
								endX = platformFloors[j].x;
							}
						}
						// Ensure we have a valid range to move in
						if (startX < endX) {
							enemy.alpha = 0.75; // Apply alpha when starting to move
							// Store the platform range for this enemy
							enemy.startX = startX;
							enemy.endX = endX;
							// Start the movement tween
							// Make sure to attach context to all tweens and store a strong reference to enemy
							var enemyRef = enemy; // Create a strong reference to avoid context loss
							// Use immediately invoked function to create closure for this enemy
							(function (currentEnemy, startPos, endPos) {
								function moveToStart(enemy) {
									enemy.isMovingRight = false;
									tween(enemy, {
										x: startPos
									}, {
										duration: 3000,
										easing: tween.linear,
										onFinish: function onFinish() {
											if (!enemy) {
												return;
											}
											enemy.isMovingRight = true;
											moveToEnd(enemy);
										}
									});
								}
								function moveToEnd(enemy) {
									tween(enemy, {
										x: endPos
									}, {
										duration: 3000,
										easing: tween.linear,
										onFinish: function onFinish() {
											if (!enemy || enemy.isMovingRight === undefined) {
												return;
											}
											enemy.isMovingRight = false;
											moveToStart(enemy);
										}
									});
								}
								// Start initial movement
								tween(currentEnemy, {
									x: endPos
								}, {
									duration: 3000,
									easing: behaviours[currentEnemy.type] || tween.linear,
									onFinish: function onFinish() {
										if (!currentEnemy) {
											return;
										}
										moveToStart(currentEnemy);
									}
								});
							})(enemyRef, enemyRef.startX, enemyRef.endX);
							enemy.isMovingRight = true;
						}
					}
				}
				// Update enemy direction based on movement
				if (enemy.x !== enemy.lastX) {
					enemy.scale.x = enemy.x > enemy.lastX ? 1 : -1;
				}
				// Check for collision with dragon
				if (!enemy.captured && dragon.intersects(enemy)) {
					// Play game over sound when the dragon dies
					LK.getSound('gameover').play();
					// Rotate the dragon 90 degrees
					dragon.rotation = -3 * Math.PI * dragon.scale.x;
					// Animate the dragon falling down - simplified tween with proper context
					var dragonRef = dragon; // Create a strong reference to avoid context loss
					// Use immediately invoked function to create closure
					(function (dragonToTween) {
						tween(dragonToTween, {
							y: 2732 + dragonToTween.height,
							tint: 0xFF0000
						}, {
							duration: 500,
							easing: tween.linear,
							onFinish: function onFinish() {
								LK.showGameOver();
							}
						});
					})(dragonRef);
				}
			}
			// Update last known position
			enemy.lastX = enemy.x;
			enemy.lastY = enemy.y;
		} //{50} // End of enemy processing loop
		// Dragon-enemy collision check is now inside the main enemy loop (lines 601-625), triggered immediately.
		// The redundant loop below is removed.
	} //{5r} // End of updateEnemiesMovement function
	function updateBubbles() {
		// Ensure bubbles array exists to prevent errors
		if (!bubbles) {
			bubbles = [];
			return;
		}
		// Process all bubbles every frame for consistent collision detection
		for (var i = bubbles.length - 1; i >= 0; i--) {
			var bubble = bubbles[i];
			if (!bubble) {
				bubbles.splice(i, 1);
				continue;
			}
			// Call the bubble's update method to move it
			if (bubble.update) {
				bubble.update();
			}
			// Optimization: Check bubble-bubble intersections less frequently
			var bubbleDestroyed = false;
			if (LK.ticks % 3 === 0) {
				// Check only every 3 frames
				for (var j = i - 1; j >= 0; j--) {
					if (j >= bubbles.length) {
						continue;
					} // Safety check
					var otherBubble = bubbles[j];
					if (!otherBubble || !otherBubble.parent) {
						// Check if other bubble still exists
						// If otherBubble was already processed and removed in this loop iteration, skip
						if (j < bubbles.length) {
							bubbles.splice(j, 1);
						}
						continue;
					}
					if (bubble.intersects(otherBubble)) {
						// Create PoppedBubbles
						var pop1 = game.addChild(new PoppedBubble());
						pop1.x = bubble.x;
						pop1.y = bubble.y;
						var pop2 = game.addChild(new PoppedBubble());
						pop2.x = otherBubble.x;
						pop2.y = otherBubble.y;
						// Safely destroy and remove bubbles
						var bubbleId = bubble.id; // Store id in case bubble reference becomes invalid
						var otherBubbleId = otherBubble.id;
						bubble.destroy();
						otherBubble.destroy();
						// Remove from bubbles array by id or index, iterating backwards
						for (var k = bubbles.length - 1; k >= 0; k--) {
							if (bubbles[k].id === bubbleId || bubbles[k].id === otherBubbleId) {
								bubbles.splice(k, 1);
							}
						}
						// Play pop sound
						LK.getSound('pop').play();
						// Destroy PoppedBubbles later
						LK.setTimeout(function () {
							if (pop1.parent) {
								pop1.destroy();
							}
							if (pop2.parent) {
								pop2.destroy();
							}
						}, 500);
						bubbleDestroyed = true;
						// Exit inner loop as 'bubble' is gone
						break;
					}
				}
			}
			// Skip further checks if bubble was destroyed in bubble-bubble collision
			if (bubbleDestroyed || !bubble.parent) {
				// Check parent as destroy might be async
				continue;
			}
			// Remove bubbles that go off-screen
			if (bubble.y < -50 || bubble.x < -50 || bubble.x > 2100) {
				bubble.destroy();
				if (i < bubbles.length) {
					bubbles.splice(i, 1);
				}
			}
		} // End of main bubble loop (i)
		// --- Collision Checks (Moved outside the main bubble loop for clarity/potential optimization) ---
		// Check for bubble-enemy collisions
		for (var i = enemies.length - 1; i >= 0; i--) {
			var enemy = enemies[i];
			if (!enemy || enemy.captured || !enemy.parent) {
				// Also check if enemy exists in scene
				continue;
			}
			for (var j = bubbles.length - 1; j >= 0; j--) {
				var bubble = bubbles[j];
				// Ensure bubble exists and hasn't been destroyed in this update cycle
				if (!bubble || !bubble.parent) {
					if (j < bubbles.length) {
						bubbles.splice(j, 1);
					} // Clean up missing bubbles
					continue;
				}
				if (bubble.intersects(enemy)) {
					// Destroy the original bubble
					bubble.destroy();
					bubbles.splice(j, 1);
					// Create a new bubble as a child of the enemy
					var newBubble = new CapturingBubble();
					newBubble.x = 0; // Position relative to the enemy
					newBubble.y = 0; // Position relative to the enemy
					enemy.addChild(newBubble);
					enemy.captured = true;
					capturingBubbles.push(newBubble);
					// Since bubble 'j' is gone, and enemy 'i' is captured,
					// we can break the inner loop and move to the next enemy
					break;
				}
			}
		}
		// Check if the dragon is intersecting a standard bubble
		for (var i = bubbles.length - 1; i >= 0; i--) {
			var bubble = bubbles[i];
			if (!bubble || !bubble.parent) {
				// Ensure bubble exists
				if (i < bubbles.length) {
					bubbles.splice(i, 1);
				}
				continue;
			}
			if (dragon.intersects(bubble)) {
				var pop = game.addChild(new PoppedBubble());
				pop.x = bubble.x;
				pop.y = bubble.y;
				bubble.destroy();
				bubbles.splice(i, 1);
				LK.getSound('pop').play();
				LK.setTimeout(function () {
					if (pop.parent) {
						pop.destroy();
					}
				}, 500); //{6x} // Use safe destroy
				// Dragon can only pop one bubble per frame
				break;
			}
		}
		// Process capturing bubbles (dragon collision and floating)
		for (var i = capturingBubbles.length - 1; i >= 0; i--) {
			var capturingBubble = capturingBubbles[i];
			if (!capturingBubble || !capturingBubble.parent) {
				// Ensure bubble exists
				if (i < capturingBubbles.length) {
					capturingBubbles.splice(i, 1);
				}
				continue;
			}
			var enemy = capturingBubble.parent; // Get the enemy parent
			// Check for dragon intersection first
			if (dragon.intersects(capturingBubble)) {
				if (enemy && enemy.parent) {
					// Ensure enemy parent also exists
					var pop = game.addChild(new PoppedBubble());
					// Use enemy's global position for pop effect
					var enemyGlobalPos = enemy.parent.toGlobal(enemy.position);
					pop.x = enemyGlobalPos.x;
					pop.y = enemyGlobalPos.y;
					// Find enemy index to remove it
					var enemyIndex = enemies.indexOf(enemy);
					if (enemyIndex !== -1) {
						enemies.splice(enemyIndex, 1);
					}
					enemy.destroy(); //{6N} // This also destroys the capturingBubble child
					capturingBubbles.splice(i, 1); // Remove from capturing array
					LK.getSound('pop').play();
					LK.setTimeout(function () {
						if (pop.parent) {
							pop.destroy();
						}
					}, 1000); // Use safe destroy
					// Since bubble 'i' and its enemy are gone, continue to next bubble
					continue;
				} else {
					// Enemy parent doesn't exist? Clean up bubble.
					capturingBubble.destroy();
					capturingBubbles.splice(i, 1);
					continue;
				}
			}
			// Update floating behavior if not popped
			if (enemy && enemy.captured && !enemy.floating) {
				enemy.y -= 3; // Slightly reduced floating speed
			}
		}
	} //{77} // End of updateBubbles function
	function updateJump() {
		if (isJumping) {
			var jumpHeight = (dragon.y - jumpStartY) / 10;
			dragon.y -= jumpHeight; // Move dragon upwards based on calculated jump height
			// More efficient intersection check with early termination
			var didHitCeiling = false;
			var dragonX = dragon.x;
			var dragonTop = dragon.y - dragon.height / 2;
			var verticalThreshold = 50; // Check floors slightly above
			var horizontalThreshold = dragon.width * 1.5;
			for (var i = 0; i < floors.length; i++) {
				var floor = floors[i];
				// Optimization: Only check floors vertically and horizontally close
				if (Math.abs(floor.y - dragonTop) < verticalThreshold + floor.height && Math.abs(floor.x - dragonX) < horizontalThreshold + floor.width / 2) {
					if (dragon.intersects(floor)) {
						var floorBottom = floor.y + floor.height / 2;
						// Check if hitting the bottom of a platform
						if (dragonTop <= floorBottom + 10) {
							// Allow slight overlap
							didHitCeiling = true;
							isJumping = false; // Stop jumping when hitting a ceiling
							isFalling = true; // Start falling when colliding with a floor
							canJump = false; // Disallow jumping again until the dragon hits a floor
							// Optional: Slightly push dragon down
							dragon.y = floorBottom + dragon.height / 2 + 5;
							break;
						}
					}
				}
			}
			// Check if jump duration has exceeded 0.4 seconds OR hit ceiling
			if (didHitCeiling || Date.now() - jumpStartTime >= 400) {
				isJumping = false;
				if (!didHitCeiling) {
					// Only start falling if max duration reached, not if ceiling hit (already falling)
					isFalling = true;
				}
			}
			// Note: dragon.lastWasIntersecting is handled by updateFall now
		}
	}
	// BLOCKS
	// Add a floor to the bottom of the screen
	var floors = [];
	for (var i = 0; i < 21; i++) {
		var floor = LK.getAsset('floor', {
			anchorX: 0.5,
			anchorY: 0.5,
			x: i * 100,
			y: 2732 - 30
		});
		game.addChild(floor);
		floors.push(floor);
	}
	// Add continuous floor on the left margin of the screen
	for (var j = 0; j < 27; j++) {
		var leftFloor = LK.getAsset('floor', {
			anchorX: 0.5,
			anchorY: 0.5,
			x: 0,
			y: j * 100
		});
		game.addChild(leftFloor);
		floors.push(leftFloor);
	}
	// Add continuous floor on the right margin of the screen
	for (var k = 0; k < 27; k++) {
		var rightFloor = LK.getAsset('floor', {
			anchorX: 0.5,
			anchorY: 0.5,
			x: 2048 - 50,
			y: k * 100
		});
		game.addChild(rightFloor);
		floors.push(rightFloor);
	}
	// Add random platforms with irregular heights and positions
	var platformYPositions = [];
	var distinctHeights = [2300, 1900, 1500, 1100, 700]; // Define 4-5 distinct heights
	var minPlatformLength = 5;
	var maxPlatformLength = 14;
	distinctHeights.forEach(function (height) {
		platformYPositions.push(height);
	});
	// Add random platforms with irregular heights and positions
	for (var j = 0; j < platformYPositions.length; j++) {
		var _behaviours$enemyType;
		var platformLength = Math.floor(Math.random() * (maxPlatformLength - minPlatformLength + 1)) + minPlatformLength;
		var startX = Math.floor(Math.random() * (2048 - platformLength * 100)); // Random start position 
		var startY = platformYPositions[j];
		// Generate a random tint color for the platforms
		var randomTint = Math.floor(Math.random() * 16777215);
		for (var i = 0; i < platformLength; i++) {
			var newX = startX + i * 100;
			if (newX > 1900 || newX < 120) {
				continue;
			}
			var platform = LK.getAsset('floor', {
				anchorX: 0.5,
				anchorY: 0.5,
				x: startX + i * 100,
				y: platformYPositions[j]
			});
			platform.tint = randomTint; // Apply the random tint to the platform
			game.addChild(platform);
			floors.push(platform);
		}
		// Spawn an enemy on top of each platform
		var enemyType = 'enemy' + (i % 5 + 1); // Cycle through enemy1 to enemy5
		var behaviour = (_behaviours$enemyType = behaviours[enemyType]) !== null && _behaviours$enemyType !== void 0 ? _behaviours$enemyType : easingFunctions[Math.floor(Math.random() * easingFunctions.length)]; // Assign random easing function;
		behaviours[enemyType] = behaviour;
		var enemy = LK.getAsset(enemyType, {
			anchorX: 0.5,
			anchorY: 0.5,
			x: startX + 100,
			y: platformYPositions[j] - 100,
			type: enemyType
		});
		if (enemyType === 'enemy5' || enemyType === 'enemy2') {
			enemy.tint = Math.floor(Math.random() * 0x7FFFFF) + 0x808080; // Ensure light tint
		}
		enemy.captured = false;
		game.addChild(enemy);
		enemies.push(enemy);
	}
	/* LEVEL MANAGEMENT 1 */
	var levelTextBackground = new Text2('LEVEL ' + level.toString(), {
		size: 210,
		fill: 0x000000
	});
	levelTextBackground.anchor.set(0.5, 0.5);
	levelTextBackground.x = 2048 / 2;
	levelTextBackground.y = 2732 / 2;
	game.addChild(levelTextBackground);
	LK.setTimeout(function () {
		levelTextBackground.destroy();
	}, 2000);
	var levelText = new Text2('LEVEL ' + level.toString(), {
		size: 200,
		fill: 0xFFFFFF
	});
	levelText.anchor.set(0.5, 0.5);
	levelText.x = 2048 / 2;
	levelText.y = 2732 / 2;
	game.addChild(levelText);
	LK.setTimeout(function () {
		levelText.destroy();
	}, 2000);
}

===================================================================
--- original.js
+++ change.js
@@ -243,13 +243,20 @@
 function startGame() {
 	started = true;
 	var level = 1;
 	function restartGame() {
+		// Ensure floors array is initialized if it somehow became null or undefined
+		if (!floors) {
+			floors = [];
+		}
 		// Clear existing platforms and enemies
 		floors.forEach(function (floor) {
 			floor.destroy();
 		});
 		floors = [];
+		if (!enemies) {
+			enemies = [];
+		}
 		enemies.forEach(function (enemy) {
 			enemy.destroy();
 		});
 		enemies = [];