b9ebeaadca
- Create an overload that renders a line in one color, as this allows most existing calls to be simplified. This also allows a slight performance improvement by only normalizing the components once. - Introduce a DrawLineStrip method. This improves performance by allowing the color components to be normalized once for the whole strip, and only needing to calculate vertices once per point rather than twice since we can reuse the last result.
62 lines
1.9 KiB
C#
62 lines
1.9 KiB
C#
#region Copyright & License Information
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/*
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* Copyright 2007-2015 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. For more information,
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* see COPYING.
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*/
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#endregion
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using System.Collections.Generic;
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using System.Drawing;
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using System.Linq;
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using OpenRA.Graphics;
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using OpenRA.Traits;
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namespace OpenRA.Graphics
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{
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public struct TargetLineRenderable : IRenderable, IFinalizedRenderable
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{
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readonly IEnumerable<WPos> waypoints;
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readonly Color color;
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public TargetLineRenderable(IEnumerable<WPos> waypoints, Color color)
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{
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this.waypoints = waypoints;
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this.color = color;
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}
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public WPos Pos { get { return waypoints.First(); } }
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public PaletteReference Palette { get { return null; } }
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public int ZOffset { get { return 0; } }
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public bool IsDecoration { get { return true; } }
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public IRenderable WithPalette(PaletteReference newPalette) { return new TargetLineRenderable(waypoints, color); }
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public IRenderable WithZOffset(int newOffset) { return new TargetLineRenderable(waypoints, color); }
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public IRenderable OffsetBy(WVec vec) { return new TargetLineRenderable(waypoints.Select(w => w + vec), color); }
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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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if (!waypoints.Any())
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return;
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var first = wr.ScreenPxPosition(waypoints.First());
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var a = first;
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foreach (var b in waypoints.Skip(1).Select(pos => wr.ScreenPxPosition(pos)))
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{
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Game.Renderer.WorldLineRenderer.DrawLine(a, b, color);
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wr.DrawTargetMarker(color, b);
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a = b;
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}
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wr.DrawTargetMarker(color, first);
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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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