97 lines
2.1 KiB
C#
97 lines
2.1 KiB
C#
using System;
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using System.Collections.Generic;
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using System.IO.Compression;
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using System.Runtime.InteropServices;
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using System.Text;
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namespace StgSharp.Math
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{
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[StructLayout(LayoutKind.Explicit)]
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public struct Matrix2x2:IEquatable<Matrix2x2>
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{
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[FieldOffset(0)]
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public Vec2D row1;
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[FieldOffset(8)]
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public Vec2D row2;
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public Matrix2x2(Vec2D c0, Vec2D c1)
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{
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row1 = c0;
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row2 = c1;
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}
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public Matrix2x2(
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float a11,
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float a12,
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float a21,
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float a22
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)
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{
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row1 = new Vec2D(a11, a12);
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row2 = new Vec2D(a21, a22);
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}
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bool IEquatable<Matrix2x2>.Equals(Matrix2x2 other)
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{
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if (this.GetHashCode() != other.GetHashCode())
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{
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return false;
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}
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else
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{
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return
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this.row1 == other.row1
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&& this.row2 == other.row2;
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}
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}
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public override bool Equals(object obj)
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{
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if (obj == null)
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{
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return false;
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}
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else if (obj.GetType() != typeof(Matrix2x2))
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{
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return false;
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}
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else
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{
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return this.Equals((Vec3D)obj);
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}
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}
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public override int GetHashCode()
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{
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return HashCode.Combine(row1,row2);
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}
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public override string ToString()
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{
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return $"{row1}\n{row2}";
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}
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public static Matrix2x2 operator +(Matrix2x2 matrix1 , Matrix2x2 matrix2)
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{
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return new Matrix2x2(
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matrix1.row1 + matrix2.row1,
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matrix1.row2 + matrix2.row2
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);
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}
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public static Matrix2x2 operator -(Matrix2x2 matrix1, Matrix2x2 matrix2)
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{
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return new Matrix2x2(
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matrix1.row1 - matrix2.row1,
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matrix1.row2 - matrix2.row2
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);
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}
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}
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}
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