public static void SyncMatrix(Movie movie)
{
int matrixId = movie.matrixId;
float scaleX = 1;
float scaleY = 1;
float rotation = 0;
Matrix matrix;
if ((matrixId & (int)Constant.MATRIX_FLAG) == 0) {
Translate translate = movie.lwf.data.translates[matrixId];
matrix = new Matrix(scaleX, scaleY,
0, 0, translate.translateX, translate.translateY);
} else {
matrixId &= ~(int)Constant.MATRIX_FLAG_MASK;
matrix = movie.lwf.data.matrices[matrixId];
bool md = GetMatrixDeterminant(matrix);
scaleX = (float)Math.Sqrt(
matrix.scaleX * matrix.scaleX + matrix.skew1 * matrix.skew1);
if (md)
scaleX = -scaleX;
scaleY = (float)Math.Sqrt(
matrix.scaleY * matrix.scaleY + matrix.skew0 * matrix.skew0);
if (md)
rotation = (float)Math.Atan2(matrix.skew1, -matrix.scaleX);
else
rotation = (float)Math.Atan2(matrix.skew1, matrix.scaleX);
rotation = rotation / (float)Math.PI * 180.0f;
}
movie.SetMatrix(matrix, scaleX, scaleY, rotation);
}
public static void GetMatrix(Movie movie)
{
int matrixId = movie.matrixId;
float scaleX = 1;
float scaleY = 1;
float rotation = 0;
Matrix matrix;
if ((matrixId & (int)Constant.MATRIX_FLAG) == 0)
{
Translate translate = movie.lwf.data.translates[matrixId];
matrix = new Matrix(scaleX, scaleY,
0, 0, translate.translateX, translate.translateY);
}
else
{
matrixId &= ~(int)Constant.MATRIX_FLAG_MASK;
matrix = movie.lwf.data.matrices[matrixId];
bool md = GetMatrixDeterminant(matrix);
scaleX = (float)Math.Sqrt(
matrix.scaleX * matrix.scaleX + matrix.skew1 * matrix.skew1);
if (md)
{
scaleX = -scaleX;
}
scaleY = (float)Math.Sqrt(
matrix.scaleY * matrix.scaleY + matrix.skew0 * matrix.skew0);
if (md)
{
rotation = (float)Math.Atan2(matrix.skew1, -matrix.scaleX);
}
else
{
rotation = (float)Math.Atan2(matrix.skew1, matrix.scaleX);
}
rotation = rotation / (float)Math.PI * 180.0f;
}
movie.SetMatrix(matrix, scaleX, scaleY, rotation);
}