CVars for MIDI instrument limits (#2632)

* CVars for MIDI instruments limits!

* Localize this

* Cache CVars in instrument systems

* better naming

Co-authored-by: Pieter-Jan Briers <pieterjan.briers+git@gmail.com>

Content.Client/GameObjects/EntitySystems/InstrumentSystem.cs

@@ -1,6 +1,8 @@
 using Content.Client.GameObjects.Components.Instruments;
+using Content.Shared;
 using JetBrains.Annotations;
 using Robust.Shared.GameObjects.Systems;
+using Robust.Shared.Interfaces.Configuration;
 using Robust.Shared.Interfaces.Timing;
 using Robust.Shared.IoC;
 
@@ -10,6 +12,28 @@ namespace Content.Client.GameObjects.EntitySystems
     public class InstrumentSystem : EntitySystem
     {
         [Dependency] private readonly IGameTiming _gameTiming = default;
+        [Dependency] private readonly IConfigurationManager _cfg = default!;
+
+        public override void Initialize()
+        {
+            base.Initialize();
+
+            _cfg.OnValueChanged(CCVars.MaxMidiEventsPerBatch, OnMaxMidiEventsPerBatchChanged, true);
+            _cfg.OnValueChanged(CCVars.MaxMidiEventsPerSecond, OnMaxMidiEventsPerSecondChanged, true);
+        }
+
+        public int MaxMidiEventsPerBatch { get; private set; }
+        public int MaxMidiEventsPerSecond { get; private set; }
+
+        private void OnMaxMidiEventsPerSecondChanged(int obj)
+        {
+            MaxMidiEventsPerSecond = obj;
+        }
+
+        private void OnMaxMidiEventsPerBatchChanged(int obj)
+        {
+            MaxMidiEventsPerBatch = obj;
+        }
 
         public override void Update(float frameTime)
         {