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Большое переименование: замена префикса F на более корректный FP (Floating Point)

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Andrey Pokidov 2024-11-20 12:24:12 +07:00
parent c66edd3432
commit ebb0a73555
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BGC/F32Matrix2x2.cs
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/*
* Copyright 2019-2025 Andrey Pokidov <andrey.pokidov@gmail.com>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
using System;
/*
* Author: Andrey Pokidov
* Date: 10 Feb 2019
*/
namespace BGC
{
public struct F32Matrix2x2
{
public float r1c1, r1c2;
public float r2c1, r2c2;
public F32Matrix2x2()
{
this.r1c1 = 0.0f;
this.r1c2 = 0.0f;
this.r2c1 = 0.0f;
this.r2c2 = 0.0f;
}
public F32Matrix2x2(float d1, float d2)
{
this.r1c1 = d1;
this.r1c2 = 0.0f;
this.r2c1 = 0.0f;
this.r2c2 = d2;
}
public F32Matrix2x2(in F32Matrix2x2 matrix)
{
this.r1c1 = matrix.r1c1;
this.r1c2 = matrix.r1c2;
this.r2c1 = matrix.r2c1;
this.r2c2 = matrix.r2c2;
}
public F32Matrix2x2(in F64Matrix2x2 matrix)
{
this.r1c1 = (float)matrix.r1c1;
this.r1c2 = (float)matrix.r1c2;
this.r2c1 = (float)matrix.r2c1;
this.r2c2 = (float)matrix.r2c2;
}
public readonly float GetDeterminant()
{
return this.r1c1 * this.r2c2 - this.r1c2 * this.r2c1;
}
public readonly bool IsSingular()
{
float determinant = this.GetDeterminant();
return -F32Utility.EPSYLON <= determinant && determinant <= F32Utility.EPSYLON;
}
public void Transpose()
{
(this.r1c2, this.r2c1) = (this.r2c1, this.r1c2);
}
public bool Invert()
{
float determinant = this.GetDeterminant();
if (-F32Utility.EPSYLON <= determinant && determinant <= F32Utility.EPSYLON)
{
return false;
}
float r1c1 = this.r2c2;
float r1c2 = -this.r1c2;
float r2c1 = -this.r2c1;
float r2c2 = this.r1c1;
this.r1c1 = r1c1 / determinant;
this.r1c2 = r1c2 / determinant;
this.r2c1 = r2c1 / determinant;
this.r2c2 = r2c2 / determinant;
return true;
}
public void Reset()
{
this.r1c1 = 0.0f;
this.r1c2 = 0.0f;
this.r2c1 = 0.0f;
this.r2c2 = 0.0f;
}
public void SetToIdentity()
{
this.r1c1 = 1.0f;
this.r1c2 = 0.0f;
this.r2c1 = 0.0f;
this.r2c2 = 1.0f;
}
public void SetToDiagonal(float d1, float d2)
{
this.r1c1 = d1;
this.r1c2 = 0.0f;
this.r2c1 = 0.0f;
this.r2c2 = d2;
}
public void SetValues(in F32Matrix2x2 matrix)
{
this.r1c1 = matrix.r1c1;
this.r1c2 = matrix.r1c2;
this.r2c1 = matrix.r2c1;
this.r2c2 = matrix.r2c2;
}
public void SetValues(in F64Matrix2x2 matrix)
{
this.r1c1 = (float)matrix.r1c1;
this.r1c2 = (float)matrix.r1c2;
this.r2c1 = (float)matrix.r2c1;
this.r2c2 = (float)matrix.r2c2;
}
public void SetTransposedOf(in F32Matrix2x2 matrix)
{
this.r1c1 = matrix.r1c1;
this.r2c2 = matrix.r2c2;
(this.r1c2, this.r2c1) = (matrix.r2c1, matrix.r1c2);
}
public void SetTransposedOf(in F64Matrix2x2 matrix)
{
this.r1c1 = (float)matrix.r1c1;
this.r1c2 = (float)matrix.r2c1;
this.r2c1 = (float)matrix.r1c2;
this.r2c2 = (float)matrix.r2c2;
}
public bool SetInvertedOf(in F32Matrix2x2 matrix)
{
float determinant = matrix.GetDeterminant();
if (-F32Utility.EPSYLON <= determinant && determinant <= F32Utility.EPSYLON)
{
return false;
}
float r1c1 = matrix.r2c2;
float r1c2 = -matrix.r1c2;
float r2c1 = -matrix.r2c1;
float r2c2 = matrix.r1c1;
this.r1c1 = r1c1 / determinant;
this.r1c2 = r1c2 / determinant;
this.r2c1 = r2c1 / determinant;
this.r2c2 = r2c2 / determinant;
return true;
}
public void SetRow1(float c1, float c2)
{
this.r1c1 = c1;
this.r1c2 = c2;
}
public void SetRow2(float c1, float c2)
{
this.r2c1 = c1;
this.r2c2 = c2;
}
public void SetColumn1(float r1, float r2)
{
this.r1c1 = r1;
this.r2c1 = r2;
}
public void SetColumn2(float r1, float r2)
{
this.r1c2 = r1;
this.r2c2 = r2;
}
public void AppendScaled(in F32Matrix2x2 matrix, float scale)
{
this.r1c1 += matrix.r1c1 * scale;
this.r1c2 += matrix.r1c2 * scale;
this.r2c1 += matrix.r2c1 * scale;
this.r2c2 += matrix.r2c2 * scale;
}
public static void Add(in F32Matrix2x2 matrix1, in F32Matrix2x2 matrix2, out F32Matrix2x2 result)
{
result.r1c1 = matrix1.r1c1 + matrix2.r1c1;
result.r1c2 = matrix1.r1c2 + matrix2.r1c2;
result.r2c1 = matrix1.r2c1 + matrix2.r2c1;
result.r2c2 = matrix1.r2c2 + matrix2.r2c2;
}
public static void Subtract(in F32Matrix2x2 minuend, in F32Matrix2x2 subtrahend, out F32Matrix2x2 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;
}
public static void Multiply(in F32Matrix2x2 multiplicand, float multiplier, out F32Matrix2x2 product)
{
product.r1c1 = multiplicand.r1c1 * multiplier;
product.r1c2 = multiplicand.r1c2 * multiplier;
product.r2c1 = multiplicand.r2c1 * multiplier;
product.r2c2 = multiplicand.r2c2 * multiplier;
}
public static void Divide(in F32Matrix2x2 dividend, float divisor, out F32Matrix2x2 quotient)
{
quotient.r1c1 = dividend.r1c1 / divisor;
quotient.r1c2 = dividend.r1c2 / divisor;
quotient.r2c1 = dividend.r2c1 / divisor;
quotient.r2c2 = dividend.r2c2 / divisor;
}
public static void GetRightProduct(in F32Matrix2x2 matrix, in F32Vector2 vector, out F32Vector2 result)
{
float x1 = matrix.r1c1 * vector.x1 + matrix.r1c2 * vector.x2;
float x2 = matrix.r2c1 * vector.x1 + matrix.r2c2 * vector.x2;
result.x1 = x1;
result.x2 = x2;
}
public static void GetLeftProduct(in F32Vector2 vector, in F32Matrix2x2 matrix, out F32Vector2 result)
{
float x1 = vector.x1 * matrix.r1c1 + vector.x2 * matrix.r2c1;
float x2 = vector.x1 * matrix.r1c2 + vector.x2 * matrix.r2c2;
result.x1 = x1;
result.x2 = x2;
}
public static void LoadZero(out F32Matrix2x2 matrix)
{
matrix.r1c1 = 0.0f;
matrix.r1c2 = 0.0f;
matrix.r2c1 = 0.0f;
matrix.r2c2 = 0.0f;
}
public static void LoadIdentity(out F32Matrix2x2 matrix)
{
matrix.r1c1 = 1.0f;
matrix.r1c2 = 0.0f;
matrix.r2c1 = 0.0f;
matrix.r2c2 = 1.0f;
}
public static void LoadDiagonal(float d1, float d2, out F32Matrix2x2 matrix)
{
matrix.r1c1 = d1;
matrix.r1c2 = 0.0f;
matrix.r2c1 = 0.0f;
matrix.r2c2 = d2;
}
}
}