Drunk Shader (#8910)

Co-authored-by: Kara D <lunarautomaton6@gmail.com>
Co-authored-by: metalgearsloth <comedian_vs_clown@hotmail.com>

Content.Client/Drunk/DrunkSystem.cs

@@ -0,0 +1,53 @@
+using Content.Shared.Drunk;
+using Robust.Client.GameObjects;
+using Robust.Client.Graphics;
+using Robust.Client.Player;
+
+namespace Content.Client.Drunk;
+
+public sealed class DrunkSystem : SharedDrunkSystem
+{
+    [Dependency] private readonly IPlayerManager _player = default!;
+    [Dependency] private readonly IOverlayManager _overlayMan = default!;
+
+    private DrunkOverlay _overlay = default!;
+
+    public override void Initialize()
+    {
+        base.Initialize();
+
+        SubscribeLocalEvent<DrunkComponent, ComponentInit>(OnDrunkInit);
+        SubscribeLocalEvent<DrunkComponent, ComponentShutdown>(OnDrunkShutdown);
+
+        SubscribeLocalEvent<DrunkComponent, PlayerAttachedEvent>(OnPlayerAttached);
+        SubscribeLocalEvent<DrunkComponent, PlayerDetachedEvent>(OnPlayerDetached);
+
+        _overlay = new();
+    }
+
+    private void OnPlayerAttached(EntityUid uid, DrunkComponent component, PlayerAttachedEvent args)
+    {
+        _overlayMan.AddOverlay(_overlay);
+    }
+
+    private void OnPlayerDetached(EntityUid uid, DrunkComponent component, PlayerDetachedEvent args)
+    {
+        _overlay.CurrentBoozePower = 0;
+        _overlayMan.RemoveOverlay(_overlay);
+    }
+
+    private void OnDrunkInit(EntityUid uid, DrunkComponent component, ComponentInit args)
+    {
+        if (_player.LocalPlayer?.ControlledEntity == uid)
+            _overlayMan.AddOverlay(_overlay);
+    }
+
+    private void OnDrunkShutdown(EntityUid uid, DrunkComponent component, ComponentShutdown args)
+    {
+        if (_player.LocalPlayer?.ControlledEntity == uid)
+        {
+            _overlay.CurrentBoozePower = 0;
+            _overlayMan.RemoveOverlay(_overlay);
+        }
+    }
+}