get that crap outta here (completely rewrites inventorysystem) (#5807)

* some work

* equip: done
unequip: todo

* unequipping done & refactored events

* workin

* movin

* reee namespaces

* stun

* mobstate

* fixes

* some work on events

* removes serverside itemcomp & misc fixes

* work

* smol merge fix

* ports template to prototype & finishes ui

* moves relay & adds containerenumerator

* actions & cuffs

* my god what is actioncode

* more fixes

* im loosing my grasp on reality

* more fixes

* more work

* explosions

* yes

* more work

* more fixes

* merge master & misc fixed because i forgot to commit before merging master

* more fixes

* fixes

* moar

* more work

* moar fixes

* suffixmap

* more work on client

* motivation low

* no. no containers

* mirroring client to server

* fixes

* move serverinvcomp

* serverinventorycomponent is dead

* gaming

* only strippable & ai left...

* only ai and richtext left

* fixes ai

* fixes

* fixes sprite layers

* more fixes

* resolves optional

* yes

* stable™️

* fixes

* moar fixes

* moar

* fix some tests

* lmao

* no comment

* good to merge™️

* fixes build but for real

* adresses some reviews

* adresses some more reviews

* nullables, yo

* fixes lobbyscreen

* timid refactor to differentiate actor & target

* adresses more reviews

* more

* my god what a mess

* removed the rest of duplicates

* removed duplicate slotflags and renamed shoes to feet

* removes another unused one

* yes

* fixes lobby & makes tryunequip return unequipped item

* fixes

* some funny renames

* fixes

* misc improvements to attemptevents

* fixes

* merge fixes

Co-authored-by: Paul Ritter <ritter.paul1@gmail.com>

Content.Shared/Item/SharedItemComponent.cs

@@ -4,6 +4,7 @@ using Content.Shared.Hands.Components;
 using Content.Shared.Interaction;
 using Content.Shared.Interaction.Helpers;
 using Content.Shared.Inventory;
+using Content.Shared.Sound;
 using Robust.Shared.GameObjects;
 using Robust.Shared.GameStates;
 using Robust.Shared.IoC;
@@ -19,7 +20,7 @@ namespace Content.Shared.Item
     ///    Players can pick up, drop, and put items in bags, and they can be seen in player's hands.
     /// </summary>
     [NetworkedComponent()]
-    public abstract class SharedItemComponent : Component, IEquipped, IUnequipped, IInteractHand
+    public class SharedItemComponent : Component, IInteractHand
     {
         [Dependency] private readonly IEntityManager _entMan = default!;
 
@@ -44,6 +45,7 @@ namespace Content.Shared.Item
         /// <summary>
         ///     Part of the state of the sprite shown on the player when this item is in their hands.
         /// </summary>
+        // todo paul make this update slotvisuals on client on change
         [ViewVariables(VVAccess.ReadWrite)]
         public string? EquippedPrefix
         {
@@ -58,6 +60,13 @@ namespace Content.Shared.Item
         [DataField("HeldPrefix")]
         private string? _equippedPrefix;
 
+        [ViewVariables]
+        [DataField("Slots")]
+        public SlotFlags SlotFlags = SlotFlags.PREVENTEQUIP; //Different from None, NONE allows equips if no slot flags are required
+
+        [DataField("EquipSound")]
+        public SoundSpecifier? EquipSound { get; set; } = default!;
+
         /// <summary>
         ///     Color of the sprite shown on the player when this item is in their hands.
         /// </summary>
@@ -65,7 +74,7 @@ namespace Content.Shared.Item
         public Color Color
         {
             get => _color;
-            protected set
+            set
             {
                 _color = value;
                 Dirty();
@@ -90,24 +99,6 @@ namespace Content.Shared.Item
         [DataField("sprite")]
         private string? _rsiPath;
 
-        public override ComponentState GetComponentState()
-        {
-            return new ItemComponentState(Size, EquippedPrefix, Color, RsiPath);
-        }
-
-        public override void HandleComponentState(ComponentState? curState, ComponentState? nextState)
-        {
-            base.HandleComponentState(curState, nextState);
-
-            if (curState is not ItemComponentState state)
-                return;
-
-            Size = state.Size;
-            EquippedPrefix = state.EquippedPrefix;
-            Color = state.Color;
-            RsiPath = state.RsiPath;
-        }
-
         /// <summary>
         ///     If a player can pick up this item.
         /// </summary>
@@ -125,16 +116,6 @@ namespace Content.Shared.Item
             return user.InRangeUnobstructed(Owner, ignoreInsideBlocker: true, popup: popup);
         }
 
-        void IEquipped.Equipped(EquippedEventArgs eventArgs)
-        {
-            EquippedToSlot();
-        }
-
-        void IUnequipped.Unequipped(UnequippedEventArgs eventArgs)
-        {
-            RemovedFromSlot();
-        }
-
         bool IInteractHand.InteractHand(InteractHandEventArgs eventArgs)
         {
             var user = eventArgs.User;