reinstate range circles; IRenderSelection allows arb. plugging in of these things

OpenRA.Mods.RA/DetectCloaked.cs

@@ -0,0 +1,47 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007-2010 The OpenRA Developers (see AUTHORS)
+ * This file is part of OpenRA, which is free software. It is made 
+ * available to you under the terms of the GNU General Public License
+ * as published by the Free Software Foundation. For more information,
+ * see LICENSE.
+ */
+#endregion
+
+using System.Linq;
+using OpenRA.Traits;
+
+namespace OpenRA.Mods.RA
+{
+	class DetectCloakedInfo : TraitInfo<DetectCloaked>
+	{
+		public readonly int Interval = 12;		// ~.5s
+		public readonly float DecloakTime = 2f;	// 2s
+		public readonly int Range = 5;
+		public readonly bool AffectOwnUnits = true;
+	}
+
+	class DetectCloaked : ITick
+	{
+		[Sync]
+		int ticks;
+
+		public void Tick(Actor self)
+		{
+			if (--ticks <= 0)
+			{
+				var info = self.Info.Traits.Get<DetectCloakedInfo>();
+				ticks = info.Interval;
+
+				var toDecloak = self.World.FindUnitsInCircle(self.CenterLocation, info.Range * Game.CellSize)
+					.Where(a => a.traits.Contains<Cloak>());
+
+				if (!info.AffectOwnUnits)
+					toDecloak = toDecloak.Where(a => self.Owner.Stances[a.Owner] != Stance.Ally);
+
+				foreach (var a in toDecloak)
+					a.traits.Get<Cloak>().Decloak((int)(25 * info.DecloakTime));
+			}
+		}
+	}
+}

OpenRA.Mods.RA/OpenRA.Mods.RA.csproj

@@ -80,6 +80,7 @@
     <Compile Include="AttackBase.cs" />
     <Compile Include="Combat.cs" />
     <Compile Include="ConstructionYard.cs" />
+    <Compile Include="DetectCloaked.cs" />
     <Compile Include="Effects\Bullet.cs" />
     <Compile Include="Effects\Explosion.cs" />
     <Compile Include="Effects\GravityBomb.cs" />
@@ -91,6 +92,8 @@
     <Compile Include="LimitedAmmo.cs" />
     <Compile Include="Player\ActorGroupProxy.cs" />
     <Compile Include="Aircraft.cs" />
+    <Compile Include="RenderDetectionCircle.cs" />
+    <Compile Include="RenderRangeCircle.cs" />
     <Compile Include="Render\RenderBuilding.cs" />
     <Compile Include="Render\RenderBuildingTurreted.cs" />
     <Compile Include="Render\RenderUnit.cs" />
@@ -232,6 +235,9 @@
       <Name>OpenRA.Game</Name>
     </ProjectReference>
   </ItemGroup>
+  <ItemGroup>
+    <Folder Include="Chrome\" />
+  </ItemGroup>
   <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
        Other similar extension points exist, see Microsoft.Common.targets.
@@ -246,8 +252,4 @@ copy "$(TargetPath)" "$(SolutionDir)mods/ra/"
 cd "$(SolutionDir)"
 ralint ra</PostBuildEvent>
   </PropertyGroup>
-  <ItemGroup>
-    <Folder Include="Widgets\" />
-    <Folder Include="Widgets\Delegates\" />
-  </ItemGroup>
 </Project>

OpenRA.Mods.RA/RenderDetectionCircle.cs

@@ -0,0 +1,26 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007-2010 The OpenRA Developers (see AUTHORS)
+ * This file is part of OpenRA, which is free software. It is made 
+ * available to you under the terms of the GNU General Public License
+ * as published by the Free Software Foundation. For more information,
+ * see LICENSE.
+ */
+#endregion
+
+using System.Drawing;
+using OpenRA.Traits;
+
+namespace OpenRA.Mods.RA
+{
+	class RenderDetectionCircleInfo : TraitInfo<RenderDetectionCircle> { }
+	class RenderDetectionCircle : IRenderSelection
+	{
+		public void Render(Actor self)
+		{
+			self.World.WorldRenderer.DrawRangeCircle(
+				Color.FromArgb(128, Color.LimeGreen),
+				self.CenterLocation, self.Info.Traits.Get<DetectCloakedInfo>().Range);
+		}
+	}
+}

OpenRA.Mods.RA/RenderRangeCircle.cs

@@ -0,0 +1,26 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007-2010 The OpenRA Developers (see AUTHORS)
+ * This file is part of OpenRA, which is free software. It is made 
+ * available to you under the terms of the GNU General Public License
+ * as published by the Free Software Foundation. For more information,
+ * see LICENSE.
+ */
+#endregion
+
+using System.Drawing;
+using OpenRA.Traits;
+
+namespace OpenRA.Mods.RA
+{
+	class RenderRangeCircleInfo : TraitInfo<RenderRangeCircle> { }
+	class RenderRangeCircle : IRenderSelection
+	{
+		public void Render(Actor self)
+		{
+			self.World.WorldRenderer.DrawRangeCircle(
+				Color.FromArgb(128, Color.Yellow),
+				self.CenterLocation, (int)self.GetPrimaryWeapon().Range);
+		}
+	}
+}