cards/CardDonut.cs
using Sandbox;
using System.Threading.Tasks;

public class CardDonut : Card
{
	public override bool IsFoodOrBeverage => true;

	public override bool ShouldHandleEvent( EventType eventType )
	{
		return eventType == EventType.Match && Manager.Instance.ChosenCards.Contains(this);
	}

	public override async Task HandleEventAsync( EventType eventType )
	{
		Manager.Instance.PushEventMessage( this, eventType );

		await Task.DelayRealtime( 50 );

		int healAmount = Manager.Instance.GetNumNearbyEmptyGridPositions( GridPos, adjacentOnly: true );

		if ( Manager.Instance.ChosenCards[1] == this )
			healAmount += (int)Manager.Instance.Stats[StatType.FoodAdditionalHeal];

		if ( healAmount > 0 )
		{
			Manager.Instance.PlayCardSfx( "donut", this, volume: 1.4f, pitch: Game.Random.Float( 0.9f, 1.1f ) );

			await Task.DelayRealtime( 50 );

			Manager.Instance.SpawnHealHPFloater( healAmount, WorldPosition );

			await Manager.Instance.GainHP( healAmount );

			await Task.DelayRealtime( 800 );
		}
		else
		{
			await Task.DelayRealtime( 300 );
		}

		Manager.Instance.PopEventMessage();
	}
}