Add (Polygon|Circle|Line)AnnotationRenderable.

OpenRA.Mods.Common/Graphics/LineAnnotationRenderable.cs

@@ -0,0 +1,61 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007-2019 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, either version 3 of
+ * the License, or (at your option) any later version. For more
+ * information, see COPYING.
+ */
+#endregion
+
+using OpenRA.Graphics;
+using OpenRA.Primitives;
+
+namespace OpenRA.Mods.Common.Graphics
+{
+	public struct LineAnnotationRenderable : IRenderable, IFinalizedRenderable
+	{
+		readonly WPos start;
+		readonly WPos end;
+		readonly float width;
+		readonly Color startColor;
+		readonly Color endColor;
+
+		public LineAnnotationRenderable(WPos start, WPos end, float width, Color color)
+		{
+			this.start = start;
+			this.end = end;
+			this.width = width;
+			startColor = endColor = color;
+		}
+
+		public LineAnnotationRenderable(WPos start, WPos end, float width, Color startColor, Color endColor)
+		{
+			this.start = start;
+			this.end = end;
+			this.width = width;
+			this.startColor = startColor;
+			this.endColor = endColor;
+		}
+
+		public WPos Pos { get { return start; } }
+		public PaletteReference Palette { get { return null; } }
+		public int ZOffset { get { return 0; } }
+		public bool IsDecoration { get { return true; } }
+
+		public IRenderable WithPalette(PaletteReference newPalette) { return new LineAnnotationRenderable(start, end, width, startColor, endColor); }
+		public IRenderable WithZOffset(int newOffset) { return new LineAnnotationRenderable(start, end, width, startColor, endColor); }
+		public IRenderable OffsetBy(WVec vec) { return new LineAnnotationRenderable(start + vec, end + vec, width, startColor, endColor); }
+		public IRenderable AsDecoration() { return this; }
+
+		public IFinalizedRenderable PrepareRender(WorldRenderer wr) { return this; }
+		public void Render(WorldRenderer wr)
+		{
+			Game.Renderer.WorldRgbaColorRenderer.DrawLine(wr.Screen3DPosition(start), wr.Screen3DPosition(end), width / wr.Viewport.Zoom, startColor, endColor);
+		}
+
+		public void RenderDebugGeometry(WorldRenderer wr) { }
+		public Rectangle ScreenBounds(WorldRenderer wr) { return Rectangle.Empty; }
+	}
+}