From 35f42309842faff12659028b711526729fbc8940 Mon Sep 17 00:00:00 2001
From: Sascha Biedermann <sascha@coder-area.de>
Date: Wed, 20 Mar 2013 18:53:28 +0100
Subject: [PATCH] added contrast to range circle

---
 OpenRA.Game/Graphics/WorldRenderer.cs   | 10 ++++++++++
 OpenRA.Mods.RA/RenderDetectionCircle.cs |  6 ++++--
 OpenRA.Mods.RA/RenderRangeCircle.cs     | 12 ++++++++----
 OpenRA.Mods.RA/RenderShroudCircle.cs    | 12 ++++++++----
 4 files changed, 30 insertions(+), 10 deletions(-)

diff --git a/OpenRA.Game/Graphics/WorldRenderer.cs b/OpenRA.Game/Graphics/WorldRenderer.cs
index c590105a92..fca66abb50 100644
--- a/OpenRA.Game/Graphics/WorldRenderer.cs
+++ b/OpenRA.Game/Graphics/WorldRenderer.cs
@@ -199,6 +199,16 @@ namespace OpenRA.Graphics
 			}
 		}
 
+		public void DrawRangeCircleWithContrast(Color fg, float2 location, float range, Color bg, int offset)
+		{
+			if (offset > 0) {
+				DrawRangeCircle(bg, location, range + (float) offset/Game.CellSize);
+				DrawRangeCircle(bg, location, range - (float) offset/Game.CellSize);
+			}
+
+			DrawRangeCircle(fg, location, range);
+		}
+
 		public void RefreshPalette()
 		{
 			palette.Update( world.WorldActor.TraitsImplementing<IPaletteModifier>() );
diff --git a/OpenRA.Mods.RA/RenderDetectionCircle.cs b/OpenRA.Mods.RA/RenderDetectionCircle.cs
index b7846b0a4a..b6567ecd1c 100644
--- a/OpenRA.Mods.RA/RenderDetectionCircle.cs
+++ b/OpenRA.Mods.RA/RenderDetectionCircle.cs
@@ -22,9 +22,11 @@ namespace OpenRA.Mods.RA
 			if (self.Owner != self.World.LocalPlayer)
 				return;
 
-			wr.DrawRangeCircle(
+			wr.DrawRangeCircleWithContrast(
 				Color.FromArgb(128, Color.LimeGreen),
-				self.CenterLocation.ToFloat2(), self.Info.Traits.Get<DetectCloakedInfo>().Range);
+				self.CenterLocation.ToFloat2(), self.Info.Traits.Get<DetectCloakedInfo>().Range,
+				Color.FromArgb(96, Color.Black),
+				1);
 		}
 	}
 }
diff --git a/OpenRA.Mods.RA/RenderRangeCircle.cs b/OpenRA.Mods.RA/RenderRangeCircle.cs
index d1b6642d39..8a869fdc55 100644
--- a/OpenRA.Mods.RA/RenderRangeCircle.cs
+++ b/OpenRA.Mods.RA/RenderRangeCircle.cs
@@ -25,10 +25,12 @@ namespace OpenRA.Mods.RA
 
 		public void Render(WorldRenderer wr, World w, ActorInfo ai, PPos centerLocation)
 		{
-			wr.DrawRangeCircle(
+			wr.DrawRangeCircleWithContrast(
 				Color.FromArgb(128, Color.Yellow),
 				centerLocation.ToFloat2(),
-				ai.Traits.Get<AttackBaseInfo>().GetMaximumRange());
+				ai.Traits.Get<AttackBaseInfo>().GetMaximumRange(),
+				Color.FromArgb(96, Color.Black),
+				1);
 
 			foreach (var a in w.ActorsWithTrait<RenderRangeCircle>())
 				if (a.Actor.Owner == a.Actor.World.LocalPlayer)
@@ -44,9 +46,11 @@ namespace OpenRA.Mods.RA
 			if (self.Owner != self.World.LocalPlayer)
 				return;
 
-			wr.DrawRangeCircle(
+			wr.DrawRangeCircleWithContrast(
 				Color.FromArgb(128, Color.Yellow),
-				self.CenterLocation.ToFloat2(), self.Trait<AttackBase>().GetMaximumRange());
+				self.CenterLocation.ToFloat2(), self.Trait<AttackBase>().GetMaximumRange(),
+				Color.FromArgb(96, Color.Black),
+				1);
 		}
 	}
 }
diff --git a/OpenRA.Mods.RA/RenderShroudCircle.cs b/OpenRA.Mods.RA/RenderShroudCircle.cs
index 02c9a90bde..b63162d893 100644
--- a/OpenRA.Mods.RA/RenderShroudCircle.cs
+++ b/OpenRA.Mods.RA/RenderShroudCircle.cs
@@ -18,10 +18,12 @@ namespace OpenRA.Mods.RA
 	{
 		public void Render(WorldRenderer wr, World w, ActorInfo ai, PPos centerLocation)
 		{
-			wr.DrawRangeCircle(
+			wr.DrawRangeCircleWithContrast(
 				Color.FromArgb(128, Color.Cyan),
 				centerLocation.ToFloat2(),
-				ai.Traits.Get<CreatesShroudInfo>().Range);
+				ai.Traits.Get<CreatesShroudInfo>().Range,
+				Color.FromArgb(96, Color.Black),
+				1);
 
 			foreach (var a in w.ActorsWithTrait<RenderShroudCircle>())
 				if (a.Actor.Owner == a.Actor.World.LocalPlayer)
@@ -36,9 +38,11 @@ namespace OpenRA.Mods.RA
 			if (self.Owner != self.World.LocalPlayer)
 				return;
 
-			wr.DrawRangeCircle(
+			wr.DrawRangeCircleWithContrast(
 				Color.FromArgb(128, Color.Cyan),
-				self.CenterLocation.ToFloat2(), self.Info.Traits.Get<CreatesShroudInfo>().Range);
+				self.CenterLocation.ToFloat2(), self.Info.Traits.Get<CreatesShroudInfo>().Range,
+				Color.FromArgb(96, Color.Black),
+				1);
 		}
 	}
 }