tbd-station-14/Content.Client/GameObjects/Components/Storage/StorageVisualizer.cs

using Content.Shared.GameObjects.Components.Storage;
using Robust.Client.GameObjects;
using Robust.Client.Interfaces.GameObjects.Components;
using Robust.Shared.Interfaces.GameObjects;
using Robust.Shared.Log;
using Robust.Shared.Utility;
using YamlDotNet.RepresentationModel;

namespace Content.Client.GameObjects.Components.Storage
{
    public sealed class StorageVisualizer : AppearanceVisualizer
    {
        private string _stateBase;
        private string _stateOpen;
        private string _stateClosed;

        public override void LoadData(YamlMappingNode node)
        {
            base.LoadData(node);

            if (node.TryGetNode("state", out var child))
            {
                _stateBase = child.AsString();
            }

            if (node.TryGetNode("state_open", out child))
            {
                _stateOpen = child.AsString();
            }

            if (node.TryGetNode("state_closed", out child))
            {
                _stateClosed = child.AsString();
            }
        }

        public override void InitializeEntity(IEntity entity)
        {
            if (!entity.TryGetComponent(out ISpriteComponent sprite))
            {
                return;
            }

            if (_stateBase != null)
            {
                sprite.LayerSetState(0, _stateBase);
            }
        }

        public override void OnChangeData(AppearanceComponent component)
        {
            base.OnChangeData(component);

            if (!component.Owner.TryGetComponent(out ISpriteComponent sprite))
            {
                return;
            }

            component.TryGetData(StorageVisuals.Open, out bool open);
            var state = open ? _stateOpen ?? $"{_stateBase}_open" : _stateClosed ?? $"{_stateBase}_door";

            sprite.LayerSetState(StorageVisualLayers.Door, state);

            if (component.TryGetData(StorageVisuals.CanLock, out bool canLock) && canLock)
            {
                if (!component.TryGetData(StorageVisuals.Locked, out bool locked))
                {
                    locked = true;
                }

                sprite.LayerSetVisible(StorageVisualLayers.Lock, !open);
                if (!open)
                {
                    sprite.LayerSetState(StorageVisualLayers.Lock, locked ? "locked" : "unlocked");
                }
            }

            if (component.TryGetData(StorageVisuals.CanWeld, out bool canWeld) && canWeld)
            {
                if (component.TryGetData(StorageVisuals.Welded, out bool weldedVal))
                {
                    sprite.LayerSetVisible(StorageVisualLayers.Welded, weldedVal);
                }
            }
        }
    }

    public enum StorageVisualLayers
    {
        Door,
        Welded,
        Lock
    }
}