using Syntriax.Engine.Core;

namespace Syntriax.Engine.Systems.Time;

public class TickerTimer : Timer, ITicker
{
    public Event<ITicker> OnTick { get; } = new();

    public double Period { get; set; } = 1f;
    public int TickCounter { get; private set; } = 0;

    private double nextTick = double.MinValue;

    public override void Start(double time)
    {
        TickCounter = 0;
        base.Start(time);
        nextTick = Remaining - Period;
    }

    public override void Update()
    {
        base.Update();

        while (Remaining <= nextTick)
        {
            nextTick -= Period;
            TickCounter++;
            OnTick?.Invoke(this);
        }
    }

    protected override void OnFinalize()
    {
        base.OnFinalize();

        TickCounter = 0;
        nextTick = 0f;
    }
}