Airlock visuals (#7261)

Content.Shared/AirlockPainter/SharedAirlockPainterSystem.cs

@@ -0,0 +1,30 @@
+using System.Linq;
+using Content.Shared.AirlockPainter.Prototypes;
+using Robust.Shared.Prototypes;
+
+namespace Content.Shared.AirlockPainter
+{
+    public abstract class SharedAirlockPainterSystem : EntitySystem
+    {
+        [Dependency] protected readonly IPrototypeManager _prototypeManager = default!;
+
+        public List<string> Styles { get; private set; } = new();
+        public List<AirlockGroupPrototype> Groups { get; private set; } = new();
+
+        public override void Initialize()
+        {
+            base.Initialize();
+
+            HashSet<string> styles = new();
+            foreach (AirlockGroupPrototype grp in _prototypeManager.EnumeratePrototypes<AirlockGroupPrototype>())
+            {
+                Groups.Add(grp);
+                foreach (string style in grp.StylePaths.Keys)
+                {
+                    styles.Add(style);
+                }
+            }
+            Styles = styles.ToList();
+        }
+    }
+}