using StgSharp.Math;
using System;
using System.Collections.Generic;
using System.Runtime.InteropServices;
using System.Security.Cryptography.X509Certificates;
using System.Text;

namespace StgSharp.Math
{
    [StructLayout(LayoutKind.Explicit)]
    public struct Matrix3x4:IEquatable<Matrix3x4>
    {
        [FieldOffset(0)]
        public Vec4D row1;
        [FieldOffset(16)]
        public Vec4D row2;
        [FieldOffset(32)]
        public Vec4D row3;

        public Matrix3x4(
            Vec4D r1, Vec4D r2, Vec4D r3
            )
        {
            this.row1 = r1;
            this.row2 = r2;
            this.row3 = r3;
        }

        public Matrix3x4(
            float a11, float a12, float a13, float a14,
            float a21, float a22, float a23, float a24,
            float a31, float a32, float a33, float a34
            )
        {
            row1 = new Vec4D(a11,a12,a13,a14);
            row2 = new Vec4D(a21,a22,a23,a24);
            row3 = new Vec4D(a31,a32,a33,a34);
        }

        public override bool Equals(object obj)
        {
            if (obj == null)
            {
                return false;
            }
            else if (obj.GetType() != typeof(Matrix3x4))
            {
                return false;
            }
            else
            {
                return this.Equals((Matrix3x4)obj);
            }
        }

        bool IEquatable<Matrix3x4>.Equals(Matrix3x4 other)
        {
            if (this.GetHashCode() != other.GetHashCode())
            {
                return false;
            }
            else
            {
                return this.row1 == other.row1
                    && this.row2 == other.row2
                    && this.row3 == other.row3;
            }
        }

        public override int GetHashCode()
        {
            return HashCode.Combine(this.row1,this.row2,this.row3);
        }

        public override string ToString()
        {
            return $"{this.row1}\n{this.row2}\n{this.row3}";
        }

        

    }
}