Implement Health Consideration for NPCs (#29922)

Implement TargetHealthCon

Content.Server/NPC/Queries/Considerations/TargetHealthCon.cs

@@ -1,6 +1,16 @@
+using Content.Shared.Mobs;
+
 namespace Content.Server.NPC.Queries.Considerations;
 
+/// <summary>
+/// Goes linearly from 1f to 0f, with 0 damage returning 1f and <see cref=TargetState> damage returning 0f
+/// </summary>
 public sealed partial class TargetHealthCon : UtilityConsideration
 {
 
+    /// <summary>
+    /// Which MobState the consideration returns 0f at, defaults to choosing earliest incapacitating MobState
+    /// </summary>
+    [DataField("targetState")]
+    public MobState TargetState = MobState.Invalid;
 }