Shitty combat mode & animations. (#367)

* Combat mode UI & targeting zones.

* Fix inventory hud positioning.

* Crappy attack animations.

* Import TG combat sounds

* More work on arcs.

* Implement hit sounds.

* Lunging, hit effects, some more stuff.

Content.Server/GameObjects/EntitySystems/CombatModeSystem.cs

@@ -1,15 +1,25 @@
 using Content.Server.GameObjects.Components.Mobs;
 using Content.Shared.Input;
+using JetBrains.Annotations;
 using Robust.Server.GameObjects.EntitySystems;
 using Robust.Server.Interfaces.Player;
+using Robust.Shared.GameObjects;
 using Robust.Shared.GameObjects.Systems;
 using Robust.Shared.Input;
+using Robust.Shared.Interfaces.Network;
+using Robust.Shared.IoC;
 using Robust.Shared.Players;
+using static Content.Shared.GameObjects.EntitySystemMessages.CombatModeSystemMessages;
 
 namespace Content.Server.GameObjects.EntitySystems
 {
+    [UsedImplicitly]
     public sealed class CombatModeSystem : EntitySystem
     {
+#pragma warning disable 649
+        [Dependency] private readonly IPlayerManager _playerManager;
+#pragma warning restore 649
+
         public override void Initialize()
         {
             base.Initialize();
@@ -19,7 +29,15 @@ namespace Content.Server.GameObjects.EntitySystems
                 InputCmdHandler.FromDelegate(CombatModeToggled));
         }
 
-        private void CombatModeToggled(ICommonSession session)
+        public override void RegisterMessageTypes()
+        {
+            base.RegisterMessageTypes();
+
+            RegisterMessageType<SetTargetZoneMessage>();
+            RegisterMessageType<SetCombatModeActiveMessage>();
+        }
+
+        private static void CombatModeToggled(ICommonSession session)
         {
             var playerSession = (IPlayerSession) session;
 
@@ -31,5 +49,28 @@ namespace Content.Server.GameObjects.EntitySystems
 
             combatModeComponent.IsInCombatMode = !combatModeComponent.IsInCombatMode;
         }
+
+        public override void HandleNetMessage(INetChannel channel, EntitySystemMessage message)
+        {
+            base.HandleNetMessage(channel, message);
+
+            var player = _playerManager.GetSessionByChannel(channel);
+            if (player.AttachedEntity == null
+                || !player.AttachedEntity.TryGetComponent(out CombatModeComponent combatModeComponent))
+            {
+                return;
+            }
+
+            switch (message)
+            {
+                case SetTargetZoneMessage setTargetZone:
+                    combatModeComponent.ActiveZone = setTargetZone.TargetZone;
+                    break;
+
+                case SetCombatModeActiveMessage setActive:
+                    combatModeComponent.IsInCombatMode = setActive.Active;
+                    break;
+            }
+        }
     }
 }