Predicted stamina (#12413)

* Predicted stamina

Needed to do some semblence of predicted melee.

* Okay now done.

* Pause support

* Comment

Content.Shared/Damage/Events/StaminaMeleeHitEvent.cs

@@ -0,0 +1,31 @@
+using Content.Shared.Damage.Components;
+using Robust.Shared.Collections;
+
+namespace Content.Shared.Damage.Events;
+
+/// <summary>
+/// The components in the list are going to be hit,
+/// give opportunities to change the damage or other stuff.
+/// </summary>
+public sealed class StaminaMeleeHitEvent : HandledEntityEventArgs
+{
+    /// <summary>
+    /// List of hit stamina components.
+    /// </summary>
+    public List<StaminaComponent> HitList;
+
+    /// <summary>
+    /// The multiplier. Generally, try to use *= or /= instead of overwriting.
+    /// </summary>
+    public float Multiplier = 1;
+
+    /// <summary>
+    /// The flat modifier. Generally, try to use += or -= instead of overwriting.
+    /// </summary>
+    public float FlatModifier = 0;
+
+    public StaminaMeleeHitEvent(List<StaminaComponent> hitList)
+    {
+        HitList = hitList;
+    }
+}