Added warhead visualization to combat debug overlay.

OpenRA.Mods.Common/Traits/World/WarheadDebugOverlay.cs

@@ -0,0 +1,87 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007-2015 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 COPYING.
+ */
+#endregion
+
+using System.Collections.Generic;
+using System.Drawing;
+using OpenRA.Graphics;
+using OpenRA.Traits;
+
+namespace OpenRA.Mods.Common.Traits
+{
+	[Desc("Part of the combat overlay from DeveloperMode. Attach this to the world actor.")]
+	public class WarheadDebugOverlayInfo : ITraitInfo
+	{
+		public readonly int DisplayDuration = 25;
+
+		public object Create(ActorInitializer init) { return new WarheadDebugOverlay(this); }
+	}
+
+	public class WarheadDebugOverlay : IPostRender
+	{
+		class WHImpact
+		{
+			public readonly WPos CenterPosition;
+			public readonly WDist[] Range;
+			public int Time;
+
+			public WDist OuterRange
+			{
+				get { return Range[Range.Length - 1]; }
+			}
+
+			public WHImpact(WPos pos, WDist[] range, int time)
+			{
+				CenterPosition = pos;
+				Range = range;
+				Time = time;
+			}
+		}
+
+		readonly WarheadDebugOverlayInfo info;
+		readonly List<WHImpact> impacts = new List<WHImpact>();
+
+		public WarheadDebugOverlay(WarheadDebugOverlayInfo info)
+		{
+			this.info = info;
+		}
+
+		public void AddImpact(WPos pos, WDist[] range)
+		{
+			impacts.Add(new WHImpact(pos, range, info.DisplayDuration));
+		}
+
+		public void RenderAfterWorld(WorldRenderer wr, Actor self)
+		{
+			foreach (var i in impacts)
+			{
+				var alpha = 255.0f * i.Time / info.DisplayDuration;
+				var rangeStep = alpha / i.Range.Length;
+
+				wr.DrawRangeCircle(i.CenterPosition, i.OuterRange, Color.FromArgb((int)alpha, Color.Red));
+
+				foreach (var r in i.Range)
+				{
+					var tl = wr.ScreenPosition(i.CenterPosition - new WVec(r.Length, r.Length, 0));
+					var br = wr.ScreenPosition(i.CenterPosition + new WVec(r.Length, r.Length, 0));
+					var rect = RectangleF.FromLTRB(tl.X, tl.Y, br.X, br.Y);
+
+					Game.Renderer.WorldLineRenderer.FillEllipse(rect, Color.FromArgb((int)alpha, Color.Red));
+
+					alpha -= rangeStep;
+				}
+
+				if (!wr.World.Paused)
+					i.Time--;
+			}
+
+			impacts.RemoveAll(i => i.Time == 0);
+		}
+	}
+}