23 lines
671 B
C#
23 lines
671 B
C#
namespace Engine.Core;
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public static class FloatExtensions
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{
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public static bool ApproximatelyEquals(this float a, float b)
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=> ApproximatelyEquals(a, b, float.Epsilon);
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public static bool ApproximatelyEquals(this float a, float b, float epsilon)
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{
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if (a == b)
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return true;
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const float floatNormal = (1 << 23) * float.Epsilon;
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float absA = Math.Abs(a);
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float absB = Math.Abs(b);
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float diff = Math.Abs(a - b);
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if (a == 0.0f || b == 0.0f || diff < floatNormal)
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return diff < (epsilon * floatNormal);
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return diff / Math.Min(absA + absB, float.MaxValue) < epsilon;
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}
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}
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