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daily update on 20230228 by nitload youmu

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Nitload
2023-03-01 00:04:40 +08:00
parent 035fb9a432
commit d09105c9c1
49 changed files with 258 additions and 117 deletions
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源代码/.Net/StgSharp/Vector/Array2x2.cs
+42 -24
View File
@@ -1,23 +1,22 @@
using System;
using System.Collections.Generic;
using System.Runtime.InteropServices;
using System.Text;
namespace StgSharp.Math
{
public struct Array2x2
[StructLayout(LayoutKind.Explicit)]
public struct Array2x2:IEquatable<Array2x2>
{
public Vec2D row0;
[FieldOffset(0)]
public Vec2D row1;
public Vec2D colum0;
public Vec2D colum1;
[FieldOffset(8)]
public Vec2D row2;
public Array2x2(Vec2D c0, Vec2D c1)
{
row0 = c0;
row1 = c1;
colum0 = new Vec2D(c0.X,c1.X);
colum1 = new Vec2D(c0.Y,c1.Y);
row1 = c0;
row2 = c1;
}
public Array2x2(
@@ -27,40 +26,59 @@ namespace StgSharp.Math
float a22
)
{
row0 = new Vec2D(a11, a12);
row1 = new Vec2D(a21, a22);
colum0 = new Vec2D(a11, a21);
colum1 = new Vec2D(a21, a22);
row1 = new Vec2D(a11, a12);
row2 = new Vec2D(a21, a22);
}
public static Array2x2 operator *(Array2x2 array1, Array2x2 array2)
bool IEquatable<Array2x2>.Equals(Array2x2 other)
{
if (this.GetHashCode() != other.GetHashCode())
{
return false;
}
else
{
return
this.row1 == other.row1
&& this.row2 == other.row2;
}
}
public static unsafe Array2x2 operator *(Array2x2 array1, Array2x2 array2)
{
float* p = &array1.row1.X;
Vec2D colum1 = new Vec2D(
*p , *(p + 2)
);
Vec2D colum2 = new Vec2D(
*(p + 1), *(p + 3)
);
return new Array2x2(
array1.colum0 * array2.row0,
array1.colum1 * array2.row0,
array1.colum0 * array2.row1,
array1.colum1 * array2.row1
colum1 * array2.row1,
colum2 * array2.row1,
colum1 * array2.row2,
colum2 * array2.row2
);
}
public static Array2x2 operator +(Array2x2 array1, Array2x2 array2)
{
return new Array2x2(
array1.row0 + array2.row0,
array1.row1 + array2.row1
array1.row1 + array2.row1,
array1.row2 + array2.row2
);
}
public static Array2x2 operator -(Array2x2 array1, Array2x2 array2)
{
return new Array2x2(
array1.row0 - array2.row0,
array1.row1 - array2.row1
array1.row1 - array2.row1,
array1.row2 - array2.row2
);
}
}
}