@using Sandbox.UI
@inherits Panel

<style>
    HitMarker {
        position: absolute;
        width: 100%;
        height: 100%;
        align-items: center;
        justify-content: center;
        flex-direction: row;
        opacity: 0;

        .icon {
            position: absolute;
            left: 50%;
            top: 50%;
            transform: translateX(-50%) translateY(-50%);
            transition: opacity 0.1s ease;
        }

        &.show {
            opacity: 0.75;
        }
    }
</style>

<root>
    <img class="icon" src="ui/crosshair/hitmarker.png" />
</root>

@code
{
    public static HitMarker Current;
    private RealTimeSince _timeSinceBorn;

    public HitMarker()
    {
        Current = this;
    }

    public void OnHit()
    {
        _timeSinceBorn = 0;
    }

    public override void Tick()
    {
        base.Tick();
        SetClass( "show", _timeSinceBorn < 0.05f );
    }

    protected override int BuildHash() => HashCode.Combine( _timeSinceBorn );
}