cirnogodot/Scripts/Components/FSM/Elevator/Ascending.cs

using System.Threading;
using System.Threading.Tasks;
using Cirno.Scripts.Enums;
using Godot;
using GTweens.Builders;
using GTweens.Tweens;
using GTweensGodot.Extensions;

namespace Cirno.Scripts.Components.FSM.Elevator;

public partial class Ascending : BaseState<ElevatorState, ElevatorProxy>
{
    public override ElevatorState StateId => ElevatorState.Ascending;

    private GTween _tween;

    public override void EnterState()
    {
        _tween?.Kill();
        MainObject.SetPosition(MainObject.Bottom);
        Ascend();
    }

    public override void ExitState()
    {
        _tween?.Kill();
    }

    private void Ascend()
    {
        // Grab player if in range

        //Ascend
        _ = RisingAnimation();
    }

    private async Task RisingAnimation()
    {
        _tween = GTweenSequenceBuilder.New()
            .Append(MainObject.TweenPosition(MainObject.Top, MainObject.MovementTime))
            .Build();

        await _tween.PlayAsync(CancellationToken.None);
        
        StateMachine.SetState(ElevatorState.Top);
    }
}