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stgsharp/源代码/StgSharp/Vector/Matrix4x2.cs
T

85 lines
2.0 KiB
C#

using System;
using System.Collections.Generic;
using System.Runtime.InteropServices;
using System.Text;
namespace StgSharp.Math
{
[StructLayout(LayoutKind.Explicit)]
public struct Matrix4x2:IEquatable<Matrix4x2>
{
[FieldOffset(0)]
public Vec2D row1;
[FieldOffset(8)]
public Vec2D row2;
[FieldOffset(16)]
public Vec2D row3;
[FieldOffset(24)]
public Vec2D row4;
public Matrix4x2(Vec2D r1, Vec2D r2, Vec2D r3, Vec2D r4)
{
row1 = r1;
row2 = r2;
row3 = r3;
row4 = r4;
}
public Matrix4x2(
float a11, float a12,
float a21, float a22,
float a31, float a32,
float a41, float a42
)
{
row1 = new Vec2D(a11, a12);
row2 = new Vec2D(a21, a22);
row3 = new Vec2D(a31, a32);
row4 = new Vec2D(a41, a42);
}
public override bool Equals(object obj)
{
if (obj == null)
{
return false;
}
else if (obj.GetType() == typeof(Matrix4x2))
{
return false;
}
else
{
return this.Equals((Matrix4x2)obj);
}
}
public override int GetHashCode()
{
return HashCode.Combine(row1, row2, row3, row4);
}
public override string ToString()
{
return $"{row1}\n{row2}\n{row3}\n{row4}";
}
bool IEquatable<Matrix4x2>.Equals(Matrix4x2 other)
{
if (this.GetHashCode() != other.GetHashCode())
{
return false;
}
else
{
return this.row1 == other.row1
&& this.row2 == other.row2
&& this.row3 == other.row3
&& this.row4 == other.row4;
}
}
}
}