Damage masks (#9402)

Content.Server/MobState/MobStateSystem.Norm.cs

@@ -0,0 +1,29 @@
+using Content.Shared.Alert;
+using Content.Shared.Damage;
+using Content.Shared.FixedPoint;
+using Content.Shared.MobState.Components;
+
+namespace Content.Server.MobState;
+
+public sealed partial class MobStateSystem
+{
+    public override void UpdateNormState(EntityUid entity, FixedPoint2 threshold)
+    {
+        base.UpdateNormState(entity, threshold);
+
+        if (!TryComp<DamageableComponent>(entity, out var damageable))
+            return;
+
+        if (!TryComp<MobStateComponent>(entity, out var stateComponent))
+            return;
+
+        short modifier = 0;
+
+        if (TryGetEarliestIncapacitatedState(stateComponent, threshold, out _, out var earliestThreshold) && damageable.TotalDamage != 0)
+        {
+            modifier = (short)(damageable.TotalDamage / (earliestThreshold / 5) + 1);
+        }
+
+        Alerts.ShowAlert(entity, AlertType.HumanHealth, modifier);
+    }
+}