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

public class CardTrumpet : Card
{
	public override bool ShouldHandleEvent( EventType eventType )
	{
		return eventType == EventType.Match && !Manager.Instance.ChosenCards.Contains( this ) && Game.Random.Float( 0f, 1f ) < 0.3f;
	}

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

		await Task.DelayRealtime( 400 );

		await Manager.Instance.RevealCard( this );

		await Task.DelayRealtime( 300 );

		Manager.Instance.PlayCardSfx( "trumpet", this, volume: 0.8f, pitch: Game.Random.Float( 0.8f, 1.2f ) );

		await Task.DelayRealtime( 700 );

		Manager.Instance.HideCard( this );

		await Task.DelayRealtime( 70 );

		Manager.Instance.PopEventMessage();
	}
}