SYNOPSIS

#include <allegro.h>

void get_y_rotate_matrix(MATRIX *m, fixed r);

void get_y_rotate_matrix_f(MATRIX_f *m, float r);

DESCRIPTION

Construct Y axis rotation matrices, storing them in m. When applied to a point, these matrices will rotate it about the Y axis by the specified angle (given in binary, 256 degrees to a circle format).