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Add Exts.ISqrt to avoid fp sqrt calculations.

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This commit is contained in:
Paul Chote
2014-06-28 14:16:00 +12:00
parent 5c82fff0ef
commit 4216f66ca4
6 changed files with 93 additions and 7 deletions
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5
OpenRA.Game/Graphics/LineRenderer.cs
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@@ -1,6 +1,6 @@
#region Copyright & License Information
/*
* Copyright 2007-2011 The OpenRA Developers (see AUTHORS)
* Copyright 2007-2014 The OpenRA Developers (see AUTHORS)
* 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. For more information,
@@ -8,6 +8,7 @@
*/
#endregion
using System;
using System.Drawing;
namespace OpenRA.Graphics
@@ -98,7 +99,7 @@ namespace OpenRA.Graphics
var yc = (r.Bottom + r.Top) / 2;
for (var y = r.Top; y <= r.Bottom; y++)
{
var dx = a * System.Convert.ToSingle(System.Math.Sqrt(1 - (y - yc) * (y - yc) / b / b));
var dx = a * (float)(Math.Sqrt(1 - (y - yc) * (y - yc) / b / b));
DrawLine(new float2(xc - dx, y), new float2(xc + dx, y), color, color);
}
}