further unhacking to localise extended damage state stuff to JUST WALLS

OpenRA.Game/Actor.cs

@@ -152,29 +152,11 @@ namespace OpenRA
 			return DamageState.Normal;
 		}
 
-		public ExtendedDamageState GetExtendedDamageState()
-		{
-			if (Health <= 0)
-				return ExtendedDamageState.Dead;
-
-			if (Health < this.GetMaxHP() * Rules.General.ConditionRed)
-				return ExtendedDamageState.Quarter;
-
-			if (Health < this.GetMaxHP() * Rules.General.ConditionYellow)
-				return ExtendedDamageState.Half;
-
-			if (Health < this.GetMaxHP() * 0.75)
-				return ExtendedDamageState.ThreeQuarter;
-
-			return ExtendedDamageState.Normal;
-		}
-
 		public void InflictDamage(Actor attacker, int damage, WarheadInfo warhead)
 		{
 			if (IsDead) return;		/* overkill! don't count extra hits as more kills! */
 
 			var oldState = GetDamageState();
-			var oldExtendedState = GetExtendedDamageState();
 
 			/* apply the damage modifiers, if we have any. */
 			damage = (int)traits.WithInterface<IDamageModifier>().Aggregate(
@@ -196,7 +178,6 @@ namespace OpenRA
 			if (Health > maxHP)	Health = maxHP;
 
 			var newState = GetDamageState();
-			var newExtendedState = GetExtendedDamageState();
 
 			foreach (var nd in traits.WithInterface<INotifyDamage>())
 				nd.Damaged(this, new AttackInfo
@@ -205,8 +186,6 @@ namespace OpenRA
 					Damage = damage,
 					DamageState = newState,
 					DamageStateChanged = newState != oldState,
-					ExtendedDamageState = newExtendedState,
-					ExtendedDamageStateChanged = newExtendedState != oldExtendedState,
 					Warhead = warhead
 				});
 		}

OpenRA.Game/Traits/Attack/AttackInfo.cs

@@ -28,8 +28,6 @@ namespace OpenRA.Traits
 		public WarheadInfo Warhead;
 		public int Damage;
 		public DamageState DamageState;
-		public ExtendedDamageState ExtendedDamageState;		// for 3,4-state stuff
 		public bool DamageStateChanged;
-		public bool ExtendedDamageStateChanged;
 	}
 }

OpenRA.Game/Traits/Render/RenderBuildingWall.cs

@@ -42,11 +42,35 @@ namespace OpenRA.Traits
 			this.damageStates = self.Info.Traits.Get<RenderBuildingWallInfo>().DamageStates;
 		}
 
+		enum ExtendedDamageState { Normal, ThreeQuarter, Half, Quarter, Dead };
+
+		ExtendedDamageState GetExtendedState( Actor self, int damage )
+		{
+			var effectiveHealth = self.Health + damage;
+
+			if (effectiveHealth <= 0)
+				return ExtendedDamageState.Dead;
+
+			if (effectiveHealth < self.GetMaxHP() * Rules.General.ConditionRed)
+				return ExtendedDamageState.Quarter;
+
+			if (effectiveHealth < self.GetMaxHP() * Rules.General.ConditionYellow)
+				return ExtendedDamageState.Half;
+
+			if (effectiveHealth < self.GetMaxHP() * 0.75)
+				return ExtendedDamageState.ThreeQuarter;
+
+			return ExtendedDamageState.Normal;
+		}
+
 		public override void Damaged(Actor self, AttackInfo e)
 		{
-			if (!e.ExtendedDamageStateChanged) return;
+			var oldState = GetExtendedState(self, e.Damage);
+			var newState = GetExtendedState(self, 0);
 
-			switch (e.ExtendedDamageState)
+			if (oldState == newState) return;
+
+			switch (newState)
 			{
 				case ExtendedDamageState.Normal:
 					seqName = "idle";

OpenRA.Game/Traits/TraitsInterfaces.cs

@@ -28,7 +28,6 @@ using OpenRA.Traits.Activities;
 namespace OpenRA.Traits
 {
 	public enum DamageState { Normal, Half, Dead };
-	public enum ExtendedDamageState { Normal, ThreeQuarter, Half, Quarter, Dead };
 	
 	// depends on the order of pips in WorldRenderer.cs!
 	public enum PipType { Transparent, Green, Yellow, Red, Gray };