void radianDir(short int *deltaX, short int *deltaY, float **radiansImg, int xdirtag, int ydirtag) {
// int pos;
float *dirim;
double dx, dy;
dirim = (float *) calloc(HEIGHT*WIDTH, sizeof (float));
*radiansImg = dirim;
for (int i = 0, pos = 0; i < HEIGHT; i++) {
for (int j = 0; j < WIDTH; j++, pos++) {
dx = (double) deltaX[pos];
dy = (double) deltaY[pos];
if (xdirtag == 1)
dx = -dx;
if (ydirtag == -1)
dy = -dy;
dirim[pos] = (float) angleRad(dx, dy);
}
}
}
float Vector2::angleRad(Vector2 * other)
{
return angleRad(other->getX(), other->getY());
}
float Vector2::angleRad(cocos2d::Vec2 other)
{
return angleRad(other.x, other.y);
}
