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Code Issues

Skip DegreesToRadians by generating value from 0-2pi

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Oliver Booth 2022-04-24 11:05:08 +01:00
parent b4f09e0a94
commit 22deba8428
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GPG Key ID: 32A00B35503AF634
1 changed files with 6 additions and 7 deletions
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13
X10D/src/Numerics/RandomExtensions.cs
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@ -1,4 +1,4 @@
using System.Numerics;
using System.Numerics;
namespace X10D.Numerics;
@ -57,7 +57,7 @@ public static class RandomExtensions
y = seededRandom.NextSingle(-1f, 1f);
z = seededRandom.NextSingle(-1f, 1f);
normal = (w * w) + (x * x) + (y * y) + (z * z);
} while (normal > 1f || normal == 0f);
} while (normal is 0f or > 1f);
normal = MathF.Sqrt(normal);
return new Quaternion(x / normal, y / normal, z / normal, w / normal);
@ -77,11 +77,10 @@ public static class RandomExtensions
{
throw new ArgumentNullException(nameof(random));
}
// no need to construct a seeded random here, since we only call Next once
int seed = random.Next();
var seededRandom = new Random(seed);
float angle = seededRandom.NextSingle(0, 360).DegreesToRadians();
float angle = random.NextSingle(0, MathF.PI * 2.0f);
float x = MathF.Cos(angle);
float y = MathF.Sin(angle);
@ -106,7 +105,7 @@ public static class RandomExtensions
int seed = random.Next();
var seededRandom = new Random(seed);
float angle = seededRandom.NextSingle(0, 360).DegreesToRadians();
float angle = seededRandom.NextSingle(0, MathF.PI * 2.0f);
float z = seededRandom.NextSingle(-1, 1);
float mp = MathF.Sqrt(1 - (z * z));
float x = mp * MathF.Cos(angle);