Scale line-width to match zoom.

OpenRA.Game/Graphics/LineRenderer.cs

@@ -15,6 +15,8 @@ namespace OpenRA.Graphics
 {
 	public class LineRenderer : Renderer.IBatchRenderer
 	{
+		public float LineWidth = 1f;
+
 		Renderer renderer;
 		IShader shader;
 
@@ -35,6 +37,7 @@ namespace OpenRA.Graphics
 				{
 					var vb = renderer.GetTempVertexBuffer();
 					vb.SetData( vertices, nv );
+					renderer.SetLineWidth(LineWidth);
 					renderer.DrawBatch( vb,	0, nv, PrimitiveType.LineList );
 				} );
 

OpenRA.Game/Graphics/Renderer.cs

@@ -77,9 +77,11 @@ namespace OpenRA.Graphics
 		{
 			device.Clear(Color.Black);
 
+			WorldLineRenderer.LineWidth = zoom;
 			float2 r1 = new float2(2f/Resolution.Width, -2f/Resolution.Height);
 			float2 r2 = new float2(-1, 1);
 			var zr1 = zoom*r1;
+
 			SetShaderParams( WorldSpriteShader, zr1, r2, scroll );
 			SetShaderParams( WorldLineShader, zr1, r2, scroll );
 			SetShaderParams( LineShader, r1, r2, scroll );
@@ -116,6 +118,11 @@ namespace OpenRA.Graphics
 			CurrentBatchRenderer = null;
 		}
 
+		public void SetLineWidth(float width)
+		{
+			device.SetLineWidth(width);
+		}
+
 		static IGraphicsDevice device;
 
 		public static Size Resolution { get { return device.WindowSize; } }