OldThink/Content.Client/Mech/MechSystem.cs

using Content.Shared.Mech;
using Content.Shared.Mech.EntitySystems;
using Robust.Client.GameObjects;
using DrawDepth = Content.Shared.DrawDepth.DrawDepth;

namespace Content.Client.Mech;

/// <inheritdoc/>
public sealed class MechSystem : SharedMechSystem
{
    /// <inheritdoc/>
    public override void Initialize()
    {
        base.Initialize();

        SubscribeLocalEvent<MechComponent, AppearanceChangeEvent>(OnAppearanceChanged);
    }

    private void OnAppearanceChanged(EntityUid uid, MechComponent component, ref AppearanceChangeEvent args)
    {
        if (args.Sprite == null)
            return;

        if (!args.Sprite.TryGetLayer((int) MechVisualLayers.Base, out var layer))
            return;

        var state = component.BaseState;
        var drawDepth = DrawDepth.Mobs;
        if (component.BrokenState != null && args.Component.TryGetData(MechVisuals.Broken, out bool broken) && broken)
        {
            state = component.BrokenState;
            drawDepth = DrawDepth.SmallMobs;
        }
        else if (component.OpenState != null && args.Component.TryGetData(MechVisuals.Open, out bool open) && open)
        {
            state = component.OpenState;
            drawDepth = DrawDepth.SmallMobs;
        }

        layer.SetState(state);
        args.Sprite.DrawDepth = (int) drawDepth;
    }
}