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

/**** 
* Classes
****/ 
// Create a new class for the player_attackf01 asset
var PlayerAttack = Container.expand(function () {
	var self = Container.call(this);
	// Attach the player_attackf01 asset to the PlayerAttack class
	var playerAttackGraphics = self.attachAsset('player_attackf01', {
		anchorX: 0.5,
		anchorY: 0.5
	});
});

/**** 
* Initialize Game
****/ 
// Mouse or touch down on the game object
var game = new LK.Game({
	backgroundColor: 0x000000
});

/**** 
* Game Code
****/ 
// Track the existence of player assets
var player = null;
var playerAttack = null;
var playerAttack2 = null;
// Create a new instance of the player_idle asset if it doesn't exist
if (!player) {
	player = LK.getAsset('player_idle', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 2048 / 2,
		y: 2732 / 2
	});
}
// Boolean to track if the sequence is running
var isSequenceRunning = false;
// Add the player to the game
game.addChild(player);
// Import the tween plugin
// Simulate breathing with player_idle by scaling it up and down
if (player !== null && player !== undefined) {
	// Check if player is not null
	if (player) {
		tween(player, {
			scaleX: 1.05,
			scaleY: 1.05
		}, {
			duration: 1000,
			easing: tween.easeInOut,
			onFinish: function onFinish() {
				tween(player, {
					scaleX: 1.0,
					scaleY: 1.0
				}, {
					duration: 1000,
					easing: tween.easeInOut,
					onFinish: function onFinish() {
						// Repeat the animation
						tween(player, {
							scaleX: 1.05,
							scaleY: 1.05
						}, {
							duration: 1000,
							easing: tween.easeInOut,
							onFinish: function onFinish() {
								// Repeat the animation
								tween(player, {
									scaleX: 1.0,
									scaleY: 1.0
								}, {
									duration: 1000,
									easing: tween.easeInOut,
									onFinish: onFinish
								});
							}
						});
					}
				});
			}
		});
	}
}
// Mouse or touch down on the game object
game.down = function (x, y, obj) {
	// Check if the sequence is already running
	if (isSequenceRunning) {
		return; // Exit if the sequence is already running
	}
	// Set the sequence running flag to true
	isSequenceRunning = true;
	// Destroy the player_idle asset if it exists
	if (player) {
		player.destroy();
		player = null;
	}
	// Create a new instance of the PlayerAttack class if it doesn't exist
	if (!playerAttack) {
		playerAttack = new PlayerAttack();
	}
	// Position the player_attackf01 asset at the center of the screen
	playerAttack.x = 2048 / 2;
	playerAttack.y = 2732 / 2;
	// Add the player_attackf01 asset to the game
	game.addChild(playerAttack);
	// After 0.5 seconds, replace player_attackf01 with player_attackf02
	LK.setTimeout(function () {
		// Destroy player_attackf01 if it exists
		if (playerAttack) {
			playerAttack.destroy();
			playerAttack = null;
		}
		// Create a new instance of player_attackf02 if it doesn't exist
		if (!playerAttack2) {
			playerAttack2 = LK.getAsset('player_attackf02', {
				anchorX: 0.5,
				anchorY: 0.5,
				x: 2048 / 2,
				y: 2732 / 2
			});
		}
		// Add player_attackf02 to the game
		game.addChild(playerAttack2);
		// After 0.5 seconds, replace player_attackf02 with player_idle
		LK.setTimeout(function () {
			// Destroy player_attackf02 if it exists
			if (playerAttack2) {
				playerAttack2.destroy();
				playerAttack2 = null;
			}
			// Create a new instance of player_idle if it doesn't exist
			if (!player) {
				player = LK.getAsset('player_idle', {
					anchorX: 0.5,
					anchorY: 0.5,
					x: 2048 / 2,
					y: 2732 / 2
				});
			}
			// Add player_idle to the game
			game.addChild(playerIdle);
			// Simulate breathing with player_idle by scaling it up and down
			if (playerIdle) {
				tween(playerIdle, {
					scaleX: 1.05,
					scaleY: 1.05
				}, {
					duration: 1000,
					easing: tween.easeInOut,
					onFinish: function onFinish() {
						tween(playerIdle, {
							scaleX: 1.0,
							scaleY: 1.0
						}, {
							duration: 1000,
							easing: tween.easeInOut,
							onFinish: onFinish
						});
					}
				});
			}
			// Set the sequence running flag to false
			isSequenceRunning = false;
		}, 500);
	}, 500);
};

===================================================================
--- original.js
+++ change.js
@@ -146,25 +146,27 @@
 			}
 			// Add player_idle to the game
 			game.addChild(playerIdle);
 			// Simulate breathing with player_idle by scaling it up and down
-			tween(playerIdle, {
-				scaleX: 1.05,
-				scaleY: 1.05
-			}, {
-				duration: 1000,
-				easing: tween.easeInOut,
-				onFinish: function onFinish() {
-					tween(playerIdle, {
-						scaleX: 1.0,
-						scaleY: 1.0
-					}, {
-						duration: 1000,
-						easing: tween.easeInOut,
-						onFinish: onFinish
-					});
-				}
-			});
+			if (playerIdle) {
+				tween(playerIdle, {
+					scaleX: 1.05,
+					scaleY: 1.05
+				}, {
+					duration: 1000,
+					easing: tween.easeInOut,
+					onFinish: function onFinish() {
+						tween(playerIdle, {
+							scaleX: 1.0,
+							scaleY: 1.0
+						}, {
+							duration: 1000,
+							easing: tween.easeInOut,
+							onFinish: onFinish
+						});
+					}
+				});
+			}
 			// Set the sequence running flag to false
 			isSequenceRunning = false;
 		}, 500);
 	}, 500);