Initial commit: OpenRA game engine

Fork from OpenRA/OpenRA with one-click launch script (start-ra.cmd)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

OpenRA.Mods.D2k/Graphics/SonicBlastRenderable.cs

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+#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.Collections.Generic;
+using OpenRA.Graphics;
+using OpenRA.Mods.D2k.Traits;
+using OpenRA.Primitives;
+
+namespace OpenRA.Mods.D2k.Graphics
+{
+	public class SonicBlastRenderable : IRenderable, IFinalizedRenderable
+	{
+		public static readonly IEnumerable<IRenderable> None = [];
+		readonly SonicBlastRenderer renderer;
+		readonly float3 r;
+
+		public WPos Pos { get; }
+		public int ZOffset => 0;
+
+		public SonicBlastRenderable(SonicBlastRenderer renderer, WPos pos)
+		{
+			this.renderer = renderer;
+			Pos = pos;
+			r = renderer.Info.Size * new float3(0.5f, 0.5f, 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.Draw(wr.Screen3DPxPosition(Pos));
+		}
+
+		public void RenderDebugGeometry(WorldRenderer wr)
+		{
+			var pos = wr.Screen3DPxPosition(Pos);
+			var tl = wr.Viewport.WorldToViewPx(pos - r);
+			var br = wr.Viewport.WorldToViewPx(pos + r);
+			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 - r);
+			var br = wr.Viewport.WorldToViewPx(pos + r);
+			return new Rectangle(tl.X, tl.Y, br.X - tl.X, br.Y - tl.Y);
+		}
+	}
+}