Add dynamic ChronoVortexRenderable.

OpenRA.Mods.Cnc/Graphics/ChronoVortexRenderable.cs

@@ -0,0 +1,67 @@
+#region Copyright & License Information
+/*
+ * Copyright (c) The OpenRA Developers and Contributors
+ * 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;
+using System.Collections.Generic;
+using OpenRA.Graphics;
+using OpenRA.Mods.Cnc.Traits;
+using OpenRA.Primitives;
+
+namespace OpenRA.Mods.Cnc.Graphics
+{
+	public class ChronoVortexRenderable : IRenderable, IFinalizedRenderable
+	{
+		public static readonly IEnumerable<IRenderable> None = Array.Empty<IRenderable>();
+		readonly ChronoVortexRenderer renderer;
+		public WPos Pos { get; }
+		readonly int frame;
+
+		public ChronoVortexRenderable(ChronoVortexRenderer renderer, WPos pos, int frame)
+		{
+			if (frame < 0 || frame >= 48)
+				throw new ArgumentException("frame must be in the range 0-47", nameof(frame));
+
+			this.renderer = renderer;
+			Pos = pos;
+			this.frame = frame;
+		}
+
+		public int ZOffset => 0;
+		public bool IsDecoration => false;
+
+		public IRenderable WithZOffset(int newOffset) => this;
+		public IRenderable OffsetBy(in WVec offset) => this;
+		public IRenderable AsDecoration() => this;
+
+		public IFinalizedRenderable PrepareRender(WorldRenderer wr) { return this; }
+
+		public void Render(WorldRenderer wr)
+		{
+			renderer.DrawVortex(wr.Screen3DPxPosition(Pos), frame);
+		}
+
+		public void RenderDebugGeometry(WorldRenderer wr)
+		{
+			var pos = wr.Screen3DPxPosition(Pos);
+			var tl = wr.Viewport.WorldToViewPx(pos);
+			var br = wr.Viewport.WorldToViewPx(pos + new float3(64, 64, 0));
+			Game.Renderer.RgbaColorRenderer.DrawRect(tl, br, 1, Color.Red);
+		}
+
+		public Rectangle ScreenBounds(WorldRenderer wr)
+		{
+			var pos = wr.Screen3DPxPosition(Pos);
+			var tl = wr.Viewport.WorldToViewPx(pos);
+			var br = wr.Viewport.WorldToViewPx(pos + new float3(64, 64, 0));
+			return new Rectangle(tl.X, tl.Y, br.X - tl.X, br.Y - tl.Y);
+		}
+	}
+}