/*
 * Author: Andrey Pokidov
 * License: Apache-2.0
 * Date: 11 Nov 2024
 */
namespace BGC
{
    public struct Matrix2x3FP64
    {
        public double r1c1 = 0.0, r1c2 = 0.0;
        public double r2c1 = 0.0, r2c2 = 0.0;
        public double r3c1 = 0.0, r3c2 = 0.0;
    
        public Matrix2x3FP64(in Matrix2x3FP64 matrix)
        {
            this.r1c1 = matrix.r1c1;
            this.r1c2 = matrix.r1c2;

            this.r2c1 = matrix.r2c1;
            this.r2c2 = matrix.r2c2;
        
            this.r3c1 = matrix.r3c1;
            this.r3c2 = matrix.r3c2;
        }
    
        public Matrix2x3FP64(in Matrix2x3FP32 matrix)
        {
            this.r1c1 = matrix.r1c1;
            this.r1c2 = matrix.r1c2;

            this.r2c1 = matrix.r2c1;
            this.r2c2 = matrix.r2c2;
        
            this.r3c1 = matrix.r3c1;
            this.r3c2 = matrix.r3c2;
        }
    
        public Matrix2x3FP64(in Matrix3x2FP64 matrix)
        {
            this.r1c1 = matrix.r1c1;
            this.r1c2 = matrix.r2c1;

            this.r2c1 = matrix.r1c2;
            this.r2c2 = matrix.r2c2;
        
            this.r3c1 = matrix.r1c3;
            this.r3c2 = matrix.r2c3;
        }
    
        public Matrix2x3FP64(in Matrix3x2FP32 matrix)
        {
            this.r1c1 = matrix.r1c1;
            this.r1c2 = matrix.r2c1;

            this.r2c1 = matrix.r1c2;
            this.r2c2 = matrix.r2c2;
        
            this.r3c1 = matrix.r1c3;
            this.r3c2 = matrix.r2c3;
        }
    
        public void Reset()
        {
            this.r1c1 = 0.0;
            this.r1c2 = 0.0;
        
            this.r2c1 = 0.0;
            this.r2c2 = 0.0;
        
            this.r3c1 = 0.0;
            this.r3c2 = 0.0;
        }
    
        public void SetValues(in Matrix2x3FP64 matrix)
        {
            this.r1c1 = matrix.r1c1;
            this.r1c2 = matrix.r1c2;

            this.r2c1 = matrix.r2c1;
            this.r2c2 = matrix.r2c2;
        
            this.r3c1 = matrix.r3c1;
            this.r3c2 = matrix.r3c2;
        }
    
        public void SetValues(in Matrix2x3FP32 matrix)
        {
            this.r1c1 = matrix.r1c1;
            this.r1c2 = matrix.r1c2;

            this.r2c1 = matrix.r2c1;
            this.r2c2 = matrix.r2c2;
        
            this.r3c1 = matrix.r3c1;
            this.r3c2 = matrix.r3c2;
        }
    
        public void SetTransposed(in Matrix3x2FP64 matrix)
        {
            this.r1c1 = matrix.r1c1;
            this.r1c2 = matrix.r2c1;

            this.r2c1 = matrix.r1c2;
            this.r2c2 = matrix.r2c2;
        
            this.r3c1 = matrix.r1c3;
            this.r3c2 = matrix.r2c3;
        }
    
        public void SetTransposed(in Matrix3x2FP32 matrix)
        {
            this.r1c1 = matrix.r1c1;
            this.r1c2 = matrix.r2c1;

            this.r2c1 = matrix.r1c2;
            this.r2c2 = matrix.r2c2;
        
            this.r3c1 = matrix.r1c3;
            this.r3c2 = matrix.r2c3;
        }

        public void SetRow1(double c1, double c2)
        {
            this.r1c1 = c1;
            this.r1c2 = c2;
        }

        public void SetRow2(double c1, double c2)
        {
            this.r2c1 = c1;
            this.r2c2 = c2;
        }

        public void SetRow3(double c1, double c2)
        {
            this.r3c1 = c1;
            this.r3c2 = c2;
        }

        public void SetColumn1(double r1, double r2, double r3)
        {
            this.r1c1 = r1;
            this.r2c1 = r2;
            this.r3c1 = r3;
        }

        public void SetColumn2(double r1, double r2, double r3)
        {
            this.r1c2 = r1;
            this.r2c2 = r2;
            this.r3c2 = r3;
        }

        public void AppendScaled(in Matrix2x3FP64 matrix, double scale)
        {
            this.r1c1 += matrix.r1c1 * scale;
            this.r1c2 += matrix.r1c2 * scale;

            this.r2c1 += matrix.r2c1 * scale;
            this.r2c2 += matrix.r2c2 * scale;

            this.r3c1 += matrix.r3c1 * scale;
            this.r3c2 += matrix.r3c2 * scale;
        }

        public static void Add(in Matrix2x3FP64 matrix1, in Matrix2x3FP64 matrix2, out Matrix2x3FP64 sum)
        {
            sum.r1c1 = matrix1.r1c1 + matrix2.r1c1;
            sum.r1c2 = matrix1.r1c2 + matrix2.r1c2;

            sum.r2c1 = matrix1.r2c1 + matrix2.r2c1;
            sum.r2c2 = matrix1.r2c2 + matrix2.r2c2;

            sum.r3c1 = matrix1.r3c1 + matrix2.r3c1;
            sum.r3c2 = matrix1.r3c2 + matrix2.r3c2;
        }

        public static void Subtract(in Matrix2x3FP64 minuend, in Matrix2x3FP64 subtrahend, out Matrix2x3FP64 difference)
        {
            difference.r1c1 = minuend.r1c1 - subtrahend.r1c1;
            difference.r1c2 = minuend.r1c2 - subtrahend.r1c2;

            difference.r2c1 = minuend.r2c1 - subtrahend.r2c1;
            difference.r2c2 = minuend.r2c2 - subtrahend.r2c2;

            difference.r3c1 = minuend.r3c1 - subtrahend.r3c1;
            difference.r3c2 = minuend.r3c2 - subtrahend.r3c2;
        }

        public static void Multiply(in Matrix2x3FP64 multiplicand, double multiplier, out Matrix2x3FP64 product)
        {
            product.r1c1 = multiplicand.r1c1 * multiplier;
            product.r1c2 = multiplicand.r1c2 * multiplier;

            product.r2c1 = multiplicand.r2c1 * multiplier;
            product.r2c2 = multiplicand.r2c2 * multiplier;

            product.r3c1 = multiplicand.r3c1 * multiplier;
            product.r3c2 = multiplicand.r3c2 * multiplier;
        }

        public static void Divide(in Matrix2x3FP64 dividend, double divisor, out Matrix2x3FP64 quotient)
        {
            Multiply(dividend, 1.0 / divisor, out quotient);
        }

        public static void GetRightProduct(in Matrix2x3FP64 matrix, in Vector2FP64 vector, out Vector3FP64 result)
        {
            result.x1 = matrix.r1c1 * vector.x1 + matrix.r1c2 * vector.x2;
            result.x2 = matrix.r2c1 * vector.x1 + matrix.r2c2 * vector.x2;
            result.x3 = matrix.r3c1 * vector.x1 + matrix.r3c2 * vector.x2;
        }

        public static void GetLeftProduct(in Vector3FP64 vector, in Matrix2x3FP64 matrix, out Vector2FP64 result)
        {
            result.x1 = vector.x1 * matrix.r1c1 + vector.x2 * matrix.r2c1 + vector.x3 * matrix.r3c1;
            result.x2 = vector.x1 * matrix.r1c2 + vector.x2 * matrix.r2c2 + vector.x3 * matrix.r3c2;
        }
    }
}