cards/CardCellphone.cs
using Sandbox;
using System.Text.RegularExpressions;
using System.Threading.Tasks;
using System.Xml.Linq;

public class CardCellphone : Card
{
	public override bool ShouldHandleEvent( EventType eventType )
	{
		return eventType == EventType.Mismatch && Manager.Instance.ChosenCards.Contains(this ) && !Manager.Instance.IsMismatchALockedMatch;
	}

	public override async Task HandleEventAsync( EventType eventType )
	{
		var cellphones = Manager.Instance.GetCardsOfType( CardType.Cellphone, except: this );
		if ( cellphones.Count == 0 )
			return;

		var closestCellphone = cellphones.OrderBy(x => (GridPos - x.GridPos).ManhattanLength).FirstOrDefault();

		Manager.Instance.PushEventMessage( this, eventType );

		await Task.DelayRealtime( 200 );

		var pos = closestCellphone.WorldPosition.WithZ( Manager.Instance.Camera.WorldPosition.z - 100f );
		Manager.Instance.PlaySfx( "cellphone", pos, volume: 0.9f, pitch: Game.Random.Float( 0.95f, 1.05f ) );

		if(closestCellphone.GridPos.x < GridPos.x)
		{
			MoveToPos( LocalPosition + new Vector3( -3f, 0f, 0f ), 0.05f, EasingType.Linear, removeControlAfter: true );
			await Task.DelayRealtime( 550 );
			MoveToPos( LocalPosition + new Vector3( -3f, 0f, 0f ), 0.05f, EasingType.Linear, removeControlAfter: true );
			await Task.DelayRealtime( 550 );
			MoveToPos( LocalPosition + new Vector3( -3f, 0f, 0f ), 0.05f, EasingType.Linear, removeControlAfter: true );
		}
		else if ( closestCellphone.GridPos.x > GridPos.x )
		{
			MoveToPos( LocalPosition + new Vector3( 3f, 0f, 0f ), 0.05f, EasingType.Linear, removeControlAfter: true );
			await Task.DelayRealtime( 550 );
			MoveToPos( LocalPosition + new Vector3( 3f, 0f, 0f ), 0.05f, EasingType.Linear, removeControlAfter: true );
			await Task.DelayRealtime( 550 );
			MoveToPos( LocalPosition + new Vector3( 3f, 0f, 0f ), 0.05f, EasingType.Linear, removeControlAfter: true );
		}

		//Manager.Instance.PlayCardSfx( "cellphone", closestCellphone, volume: 1.2f, pitch: Game.Random.Float( 0.95f, 1.05f ) );

		await Task.DelayRealtime( 500 );

		Manager.Instance.PopEventMessage();
	}
}