Actions System + UI (#2710)

Co-authored-by: Vera Aguilera Puerto <6766154+Zumorica@users.noreply.github.com>

Content.Shared/Actions/ActionManager.cs

@@ -0,0 +1,70 @@
+using System.Collections.Generic;
+using System.Linq;
+using Robust.Shared.IoC;
+using Robust.Shared.Log;
+using Robust.Shared.Prototypes;
+
+namespace Content.Shared.Actions
+{
+    /// <summary>
+    /// Provides access to all configured actions by action type.
+    /// </summary>
+    public class ActionManager
+    {
+        [Dependency]
+        private readonly IPrototypeManager _prototypeManager = default!;
+
+        private Dictionary<ActionType, ActionPrototype> _typeToAction;
+        private Dictionary<ItemActionType, ItemActionPrototype> _typeToItemAction;
+
+        public void Initialize()
+        {
+            _typeToAction = new Dictionary<ActionType, ActionPrototype>();
+            foreach (var action in _prototypeManager.EnumeratePrototypes<ActionPrototype>())
+            {
+                if (!_typeToAction.TryAdd(action.ActionType, action))
+                {
+                    Logger.ErrorS("action",
+                        "Found action with duplicate actionType {0} - all actions must have" +
+                        " a unique actionType, this one will be skipped", action.ActionType);
+                }
+            }
+
+            _typeToItemAction = new Dictionary<ItemActionType, ItemActionPrototype>();
+            foreach (var action in _prototypeManager.EnumeratePrototypes<ItemActionPrototype>())
+            {
+                if (!_typeToItemAction.TryAdd(action.ActionType, action))
+                {
+                    Logger.ErrorS("action",
+                        "Found itemAction with duplicate actionType {0} - all actions must have" +
+                        " a unique actionType, this one will be skipped", action.ActionType);
+                }
+            }
+        }
+
+        /// <returns>all action prototypes of all types</returns>
+        public IEnumerable<BaseActionPrototype> EnumerateActions()
+        {
+            return _typeToAction.Values.Concat<BaseActionPrototype>(_typeToItemAction.Values);
+        }
+
+
+        /// <summary>
+        /// Tries to get the action of the indicated type
+        /// </summary>
+        /// <returns>true if found</returns>
+        public bool TryGet(ActionType actionType, out ActionPrototype action)
+        {
+            return _typeToAction.TryGetValue(actionType, out action);
+        }
+
+        /// <summary>
+        /// Tries to get the item action of the indicated type
+        /// </summary>
+        /// <returns>true if found</returns>
+        public bool TryGet(ItemActionType actionType, out ItemActionPrototype action)
+        {
+            return _typeToItemAction.TryGetValue(actionType, out action);
+        }
+    }
+}