add: try add sprite module. attemp 1

Content.Client/_White/WeaponsModules/WeaponModulesVisuals.cs

@@ -0,0 +1,42 @@
+using Content.Client.Weapons.Ranged.Components;
+using Content.Shared.Rounding;
+using Content.Shared.Weapons.Ranged.Systems;
+using Robust.Client.GameObjects;
+
+namespace Content.Client._White.WeaponsModules;
+
+public sealed partial class WeaponModulesVisuals : EntitySystem
+{
+    private void Initialize()
+    {
+        base.Initialize();
+
+        SubscribeLocalEvent<WeaponModulesVisualsComponent, ComponentInit>(ComponentInit);
+        SubscribeLocalEvent<WeaponModulesVisualsComponent, AppearanceChangeEvent>(onModuleVisualChange);
+    }
+
+    private void ComponentInit(EntityUid uid, WeaponModulesVisualsComponent component, ComponentInit args)
+    {
+        if (!TryComp<SpriteComponent>(uid, out var sprite)) return;
+
+        if (sprite.LayerMapTryGet(ModuleVisualState.Laser, out _))
+        {
+            sprite.LayerSetState(ModuleVisualState.Laser, $"laser");
+            sprite.LayerSetVisible(ModuleVisualState.Laser, false);
+        }
+    }
+
+    private void onModuleVisualChange(EntityUid uid, WeaponModulesVisualsComponent component, ref AppearanceChangeEvent args)
+    {
+        var sprite = args.Sprite;
+
+        if (sprite == null) return;
+
+        if (sprite.LayerMapTryGet(ModuleVisualState.Laser, out _))
+        {
+            sprite.LayerSetVisible(ModuleVisualState.Laser, true);
+            sprite.LayerSetState(ModuleVisualState.Laser, $"laser");
+        }
+    }
+
+}

Content.Client/_White/WeaponsModules/WeaponModulesVisualsComponent.cs

@@ -0,0 +1,15 @@
+using Robust.Shared.GameStates;
+
+namespace Content.Client._White.WeaponsModules;
+
+/// <inheritdoc/>
+[RegisterComponent, Access(typeof(WeaponModulesVisuals))]
+public sealed partial class WeaponModulesVisualsComponent : Component
+{
+    [DataField()] public string? state;
+}
+
+public enum ModuleVisualState : byte
+{
+    Laser
+}

Content.Server/_White/WeaponModules/WeaponModulesSystem.cs

@@ -1,7 +1,4 @@
 using System.Numerics;
-using Content.Server.Light.Events;
-using Content.Server.Lightning;
-using Content.Shared.Light;
 using Content.Shared.Weapons.Ranged.Components;
 using Content.Shared.Weapons.Ranged.Systems;
 using Robust.Server.GameObjects;
@@ -14,6 +11,7 @@ public sealed class WeaponModulesSystem : EntitySystem
 {
     protected const string ModulesSlot = "gun_modules";
     [Dependency] private readonly PointLightSystem _lightSystem = default!;
+    [Dependency] private readonly SharedAppearanceSystem Appearance = default!;
     [Dependency] private readonly SharedGunSystem _gunSystem = default!;
 
     SoundSpecifier? oldSoundGunshot;

Resources/Prototypes/Entities/Objects/Weapons/Guns/Rifles/rifles.yml

@@ -71,6 +71,8 @@
       map: [ "enum.GunVisualLayers.Base" ]
     - state: mag-0
       map: [ "enum.GunVisualLayers.Mag" ]
+    - state: laser
+      map: [ "enum.ModuleVisualState.Laser" ]
   - type: Gun
     fireRate: 5
     soundGunshot:
@@ -111,6 +113,7 @@
     magState: mag
     steps: 1
     zeroVisible: true
+  - type: WeaponModulesVisuals
   - type: Appearance
 
 - type: entity

Resources/Textures/Objects/Weapons/Guns/Rifles/ak.rsi/meta.json

@@ -19,6 +19,9 @@
         {
             "name": "mag-0"
         },
+        {
+            "name": "laser"
+        },
         {
             "name": "inhand-left",
             "directions": 4