78 lines
3.0 KiB
C#
78 lines
3.0 KiB
C#
#region Copyright & License Information
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/*
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* Copyright 2007-2020 The OpenRA Developers (see AUTHORS)
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* This file is part of OpenRA, which is free software. It is made
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* available to you under the terms of the GNU General Public License
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* as published by the Free Software Foundation, either version 3 of
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* the License, or (at your option) any later version. For more
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* information, see COPYING.
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*/
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#endregion
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using OpenRA.Graphics;
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using OpenRA.Primitives;
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namespace OpenRA.Mods.Common.Graphics
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{
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public class RangeCircleAnnotationRenderable : IRenderable, IFinalizedRenderable
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{
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const int RangeCircleSegments = 32;
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static readonly Int32Matrix4x4[] RangeCircleStartRotations = Exts.MakeArray(RangeCircleSegments, i => WRot.FromFacing(8 * i).AsMatrix());
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static readonly Int32Matrix4x4[] RangeCircleEndRotations = Exts.MakeArray(RangeCircleSegments, i => WRot.FromFacing(8 * i + 6).AsMatrix());
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readonly WPos centerPosition;
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readonly WDist radius;
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readonly int zOffset;
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readonly Color color;
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readonly float width;
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readonly Color borderColor;
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readonly float borderWidth;
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public RangeCircleAnnotationRenderable(WPos centerPosition, WDist radius, int zOffset, Color color, float width, Color borderColor, float borderWidth)
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{
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this.centerPosition = centerPosition;
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this.radius = radius;
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this.zOffset = zOffset;
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this.color = color;
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this.width = width;
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this.borderColor = borderColor;
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this.borderWidth = borderWidth;
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}
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public WPos Pos => centerPosition;
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public int ZOffset => zOffset;
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public bool IsDecoration => true;
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public IRenderable WithZOffset(int newOffset) { return new RangeCircleAnnotationRenderable(centerPosition, radius, newOffset, color, width, borderColor, borderWidth); }
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public IRenderable OffsetBy(in WVec vec) { return new RangeCircleAnnotationRenderable(centerPosition + vec, radius, zOffset, color, width, borderColor, borderWidth); }
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public IRenderable AsDecoration() { return this; }
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public IFinalizedRenderable PrepareRender(WorldRenderer wr) { return this; }
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public void Render(WorldRenderer wr)
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{
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DrawRangeCircle(wr, centerPosition, radius, width, color, borderWidth, borderColor);
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}
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public static void DrawRangeCircle(WorldRenderer wr, WPos centerPosition, WDist radius,
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float width, Color color, float borderWidth, Color borderColor)
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{
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var cr = Game.Renderer.RgbaColorRenderer;
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var offset = new WVec(radius.Length, 0, 0);
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for (var i = 0; i < RangeCircleSegments; i++)
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{
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var a = wr.Viewport.WorldToViewPx(wr.ScreenPosition(centerPosition + offset.Rotate(ref RangeCircleStartRotations[i])));
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var b = wr.Viewport.WorldToViewPx(wr.ScreenPosition(centerPosition + offset.Rotate(ref RangeCircleEndRotations[i])));
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if (borderWidth > 0)
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cr.DrawLine(a, b, borderWidth, borderColor);
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if (width > 0)
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cr.DrawLine(a, b, width, color);
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}
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}
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public void RenderDebugGeometry(WorldRenderer wr) { }
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public Rectangle ScreenBounds(WorldRenderer wr) { return Rectangle.Empty; }
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}
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}
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