86 lines
3.0 KiB
C#
86 lines
3.0 KiB
C#
#region Copyright & License Information
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/*
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* Copyright (c) The OpenRA Developers and Contributors
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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 DetectionCircleAnnotationRenderable : IRenderable, IFinalizedRenderable
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{
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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 int trailCount;
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readonly WAngle trailSeparation;
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readonly WAngle trailAngle;
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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 DetectionCircleAnnotationRenderable(WPos centerPosition, WDist radius, int zOffset,
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int lineTrails, WAngle trailSeparation, WAngle trailAngle, 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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trailCount = lineTrails;
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this.trailSeparation = trailSeparation;
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this.trailAngle = trailAngle;
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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)
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{
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return new DetectionCircleAnnotationRenderable(centerPosition, radius, newOffset,
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trailCount, trailSeparation, trailAngle, color, width, borderColor, borderWidth);
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}
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public IRenderable OffsetBy(in WVec vec)
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{
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return new DetectionCircleAnnotationRenderable(centerPosition + vec, radius, zOffset,
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trailCount, trailSeparation, trailAngle, color, width, borderColor, borderWidth);
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}
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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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var cr = Game.Renderer.RgbaColorRenderer;
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var center = wr.Viewport.WorldToViewPx(wr.Screen3DPosition(centerPosition));
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for (var i = 0; i < trailCount; i++)
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{
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var angle = trailAngle - new WAngle(i * (trailSeparation.Angle <= 512 ? 1 : -1));
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var length = radius.Length * new WVec(angle.Cos(), angle.Sin(), 0) / 1024;
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var end = wr.Viewport.WorldToViewPx(wr.Screen3DPosition(centerPosition + length));
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var alpha = color.A - i * color.A / trailCount;
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cr.DrawLine(center, end, borderWidth, Color.FromArgb(alpha, borderColor));
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cr.DrawLine(center, end, width, Color.FromArgb(alpha, color));
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}
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RangeCircleAnnotationRenderable.DrawRangeCircle(wr, centerPosition, radius, width, color, borderWidth, borderColor);
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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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