Add a CustomTerrain debug overlay.

OpenRA.Mods.Common/Traits/Render/CustomTerrainDebugOverlay.cs

@@ -0,0 +1,79 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007-2016 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 System.Collections.Generic;
+using System.Drawing;
+using OpenRA.Graphics;
+using OpenRA.Mods.Common.Commands;
+using OpenRA.Mods.Common.Graphics;
+using OpenRA.Traits;
+
+namespace OpenRA.Mods.Common.Traits
+{
+	[Desc("Displays custom terrain types.")]
+	class CustomTerrainDebugOverlayInfo : ITraitInfo
+	{
+		public readonly string Font = "TinyBold";
+
+		public object Create(ActorInitializer init) { return new CustomTerrainDebugOverlay(init.Self, this); }
+	}
+
+	class CustomTerrainDebugOverlay : IWorldLoaded, IChatCommand, IRender
+	{
+		const string CommandName = "debugcustomterrain";
+		const string CommandDesc = "Toggles the custom terrain debug overlay.";
+
+		public bool Enabled;
+
+		readonly SpriteFont font;
+
+		public CustomTerrainDebugOverlay(Actor self, CustomTerrainDebugOverlayInfo info)
+		{
+			font = Game.Renderer.Fonts[info.Font];
+		}
+
+		void IWorldLoaded.WorldLoaded(World w, WorldRenderer wr)
+		{
+			var console = w.WorldActor.TraitOrDefault<ChatCommands>();
+			var help = w.WorldActor.TraitOrDefault<HelpCommand>();
+
+			if (console == null || help == null)
+				return;
+
+			console.RegisterCommand(CommandName, this);
+			help.RegisterHelp(CommandName, CommandDesc);
+		}
+
+		void IChatCommand.InvokeCommand(string name, string arg)
+		{
+			if (name == CommandName)
+				Enabled ^= true;
+		}
+
+		IEnumerable<IRenderable> IRender.Render(Actor self, WorldRenderer wr)
+		{
+			if (!Enabled)
+				yield break;
+
+			foreach (var uv in wr.Viewport.VisibleCellsInsideBounds.CandidateMapCoords)
+			{
+				var cell = uv.ToCPos(wr.World.Map);
+				var center = wr.World.Map.CenterOfCell(cell);
+				var terrainType = self.World.Map.CustomTerrain[cell];
+				if (terrainType == byte.MaxValue)
+					continue;
+
+				var info = wr.World.Map.GetTerrainInfo(cell);
+				yield return new TextRenderable(font, center, 0, info.Color, info.Type);
+			}
+		}
+	}
+}