Convert BaseProvider range check to world coords.

OpenRA.Mods.RA/BelowUnits.cs

@@ -29,7 +29,7 @@ namespace OpenRA.Mods.RA
 		{
 			// Offset effective position to the top of the northernmost occupied cell
 			var bi = self.Info.Traits.GetOrDefault<BuildingInfo>();
-			offset = (bi != null) ? -FootprintUtils.CenterOffset(bi).Y : -512;
+			offset = ((bi != null) ? -FootprintUtils.CenterOffset(bi).Y : 0) - 512;
 		}
 
 		public IEnumerable<IRenderable> ModifyRender(Actor self, WorldRenderer wr, IEnumerable<IRenderable> r)

OpenRA.Mods.RA/Buildings/BaseProvider.cs

@@ -17,7 +17,7 @@ namespace OpenRA.Mods.RA.Buildings
 {
 	public class BaseProviderInfo : ITraitInfo
 	{
-		public readonly float Range = 10;
+		public readonly int Range = 10;
 		public readonly int Cooldown = 0;
 		public readonly int InitialDelay = 0;
 

OpenRA.Mods.RA/Buildings/Building.cs

@@ -38,23 +38,20 @@ namespace OpenRA.Mods.RA.Buildings
 
 		public object Create(ActorInitializer init) { return new Building(init, this); }
 
-		public PPos CenterLocation(CPos topLeft)
+		public Actor FindBaseProvider(World world, Player p, CPos topLeft)
 		{
-			return (PPos)((2 * topLeft.ToInt2() + Dimensions) * Game.CellSize / 2);
-		}
-
-		bool HasBaseProvider(World world, Player p, CPos topLeft)
-		{
-			var center = CenterLocation(topLeft);
+			var center = topLeft.CenterPosition + FootprintUtils.CenterOffset(this);
 			foreach (var bp in world.ActorsWithTrait<BaseProvider>())
 			{
 				if (bp.Actor.Owner.Stances[p] != Stance.Ally || !bp.Trait.Ready())
 					continue;
 
-				if (Combat.IsInRange(center, bp.Trait.Info.Range, bp.Actor.CenterLocation))
-					return true;
+				// Range is counted from the center of the actor, not from each cell.
+				var target = Target.FromPos(bp.Actor.CenterLocation);
+				if (target.IsInRange(center, WRange.FromCells(bp.Trait.Info.Range)))
+					return bp.Actor;
 			}
-			return false;
+			return null;
 		}
 
 		public bool IsCloseEnoughToBase(World world, Player p, string buildingName, CPos topLeft)
@@ -62,7 +59,7 @@ namespace OpenRA.Mods.RA.Buildings
 			if (p.PlayerActor.Trait<DeveloperMode>().BuildAnywhere)
 				return true;
 
-			if (RequiresBaseProvider && !HasBaseProvider(world, p, topLeft))
+			if (RequiresBaseProvider && FindBaseProvider(world, p, topLeft) == null)
 				return false;
 
 			var buildingMaxBounds = (CVec)Dimensions;
@@ -126,7 +123,9 @@ namespace OpenRA.Mods.RA.Buildings
 
 			occupiedCells = FootprintUtils.UnpathableTiles( self.Info.Name, Info, TopLeft )
 				.Select(c => Pair.New(c, SubCell.FullCell)).ToArray();
-			pxPosition = Info.CenterLocation(topLeft);
+
+			var position = topLeft.CenterPosition + FootprintUtils.CenterOffset(Info);
+			pxPosition = PPos.FromWPosHackZ(position);
 		}
 
 		public int GetPowerUsage()

OpenRA.Mods.RA/Buildings/FootprintUtils.cs

@@ -65,7 +65,8 @@ namespace OpenRA.Mods.RA.Buildings
 		public static WVec CenterOffset(BuildingInfo buildingInfo)
 		{
 			var dim = buildingInfo.Dimensions;
-			return new CVec(dim.X, dim.Y).ToWVec() / 2;
+			// Offset is measured relative to the center of the cell, so need to subtract an additional half cell.
+			return new CVec(dim.X, dim.Y).ToWVec() / 2 - new WVec(512, 512, 0);
 		}
 	}
 }

OpenRA.Mods.RA/Orders/PlaceBuildingOrderGenerator.cs

@@ -98,7 +98,7 @@ namespace OpenRA.Mods.RA.Orders
 					initialized = true;
 				}
 
-				var offset = (topLeft - CPos.Zero).ToWVec() + FootprintUtils.CenterOffset(BuildingInfo);
+				var offset = topLeft.CenterPosition + FootprintUtils.CenterOffset(BuildingInfo) - WPos.Zero;
 				foreach (var r in preview)
 					r.WithPos(r.Pos + offset).Render(wr);
 

OpenRA.Mods.RA/Player/PlaceBuilding.cs

@@ -83,18 +83,11 @@ namespace OpenRA.Mods.RA
 
 					if (buildingInfo.RequiresBaseProvider)
 					{
-						var center = buildingInfo.CenterLocation(order.TargetLocation);
-						foreach (var bp in w.ActorsWithTrait<BaseProvider>())
-						{
-							if (bp.Actor.Owner.Stances[self.Owner] != Stance.Ally || !bp.Trait.Ready())
-								continue;
-
-							if (Combat.IsInRange(center, bp.Trait.Info.Range, bp.Actor.CenterLocation))
-							{
-								bp.Trait.BeginCooldown();
-								break;
-							}
-						}
+						// May be null if the build anywhere cheat is active
+						// BuildingInfo.IsCloseEnoughToBase has already verified that this is a valid build location
+						var producer = buildingInfo.FindBaseProvider(w, self.Owner, order.TargetLocation);
+						if (producer != null)
+							producer.Trait<BaseProvider>().BeginCooldown();
 					}
 
 					if (GetNumBuildables(self.Owner) > prevItems)

OpenRA.Mods.RA/Render/RenderBuildingWarFactory.cs

@@ -49,10 +49,12 @@ namespace OpenRA.Mods.RA.Render
 			: base(init, info)
 		{
 			roof = new Animation(GetImage(init.self));
-
 			var bi = init.self.Info.Traits.Get<BuildingInfo>();
+
+			// Additional 512 units move from center -> top of cell
+			var offset = FootprintUtils.CenterOffset(bi).Y + 512;
 			anims.Add("roof", new AnimationWithOffset(roof, null,
-				() => !buildComplete, FootprintUtils.CenterOffset(bi).Y));
+				() => !buildComplete, offset));
 		}
 
 		public void BuildingComplete( Actor self )