/// <summary>
/// Initializes a new Matrix2x3 class.
/// </summary>
static Matrix2x3()
{
Matrix2x3 m = default(Matrix2x3);
m._values[0] = 1.0f;
m._values[4] = 1.0f;
Identity = m;
}
/// <summary>
/// Initializes a new Matrix2x3 class.
/// </summary>
static Matrix2x3()
{
Matrix2x3 m = default(Matrix2x3);
m._values[0] = 1.0f;
m._values[4] = 1.0f;
Identity = m;
}
/// <summary>
/// Returns the inverse matrix of this matrix.
/// </summary>
/// <returns>Matrix2x3.</returns>
public Matrix2x3 Invert()
{
Matrix2x3 m1 = this;
Matrix2x3 m2 = Identity;
if (m1._values[0] == 0 || m1._values[4] == 0)
{
if (m1._values[1] == 0 || m1._values[3] == 0)
throw new InvalidOperationException("This matrix is singular."); }
m1.SwapRows();
m2.SwapRows();
}
/// <summary>
/// Sets the Transform.
/// </summary>
/// <param name="matrix">The Matrix.</param>
public void SetTransform(Matrix2x3 matrix)
{
Matrix m = Matrix.Identity;
m.M12 = matrix[1, 0];
m.M21 = matrix[0, 1];
m.M11 = matrix[0, 0];
m.M22 = matrix[1, 1];
m.M33 = 1f;
m.M41 = matrix.OffsetX;
m.M42 = matrix.OffsetY;
m.M43 = 0;
_sprite.Transform = m;
}
/// <summary>
/// Sets the Transform.
/// </summary>
/// <param name="matrix">The Matrix.</param>
public void SetTransform(Matrix2x3 matrix)
{
var dxMatrix = new Matrix3x2
{
M31 = matrix.OffsetX,
M32 = matrix.OffsetY,
M11 = matrix[0, 0],
M22 = matrix[1, 1],
M12 = matrix[1, 0],
M21 = matrix[0, 1]
};
_renderTarget.Transform = dxMatrix;
}
/// <summary>
/// Sets the Transform.
/// </summary>
/// <param name="matrix">The Matrix.</param>
public void SetTransform(Matrix2x3 matrix)
{
Renderer.SetTransform(matrix);
}
/// <summary>
/// Sets the Transform.
/// </summary>
/// <param name="matrix">The Matrix.</param>
public void SetTransform(Matrix2x3 matrix)
{
var dxMatrix = new Matrix3x2
{
TranslationVector = DirectXHelper.ConvertVector(new Vector2(matrix.OffsetX, matrix.OffsetY)),
ScaleVector = DirectXHelper.ConvertVector(new Vector2(matrix[0, 0], matrix[1, 1])),
M12 = matrix[1, 0],
M21 = matrix[0, 1]
};
DirectXHelper.RenderTarget.Transform = dxMatrix;
}
/// <summary>
/// Sets the Transform.
/// </summary>
/// <param name="matrix">The Matrix.</param>
public void SetTransform(Matrix2x3 matrix)
{
var matrixf = new float[16];
matrixf[0] = matrix[0, 0];
matrixf[1] = matrix[1, 0];
matrixf[2] = 0;
matrixf[3] = 0;
matrixf[4] = matrix[0, 1];
matrixf[5] = matrix[1, 1];
matrixf[6] = 0;
matrixf[7] = 0;
matrixf[8] = 0;
matrixf[9] = 0;
matrixf[10] = 1;
matrixf[11] = 0;
matrixf[12] = matrix.OffsetX;
matrixf[13] = matrix.OffsetY;
matrixf[14] = 0;
matrixf[15] = 1;
_matrix4 = matrixf;
}
/// <summary>
/// Multiplies two matrices.
/// </summary>
/// <param name="left">The left matrix.</param>
/// <param name="right">The right matrix.</param>
/// <returns>Matrix2x3.</returns>
public static Matrix2x3 Multiply(Matrix2x3 left, Matrix2x3 right)
{
Matrix2x3 m = default(Matrix2x3);
for (int x = 0; x < 2; x++)
{
for (int y = 0; y < 3; y++)
{
m[x, y] = left[x, 0]*right[0, y] + left[x, 1]*right[1, y] + (y == 2 ? left[x, 2] : 0);
}
}
return m;
}
