DOKK / manpages / debian 10 / allegro4-doc / get_y_rotate_matrix.3alleg4.en
get_y_rotate_matrix(3alleg4) Allegro manual get_y_rotate_matrix(3alleg4)

get_y_rotate_matrix, get_y_rotate_matrix_f - Construct Y axis rotation matrices. Allegro game programming library.

#include <allegro.h>

void get_y_rotate_matrix(MATRIX *m, fixed r);

void get_y_rotate_matrix_f(MATRIX_f *m, float r);

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).

apply_matrix(3alleg4), get_rotation_matrix(3alleg4), get_x_rotate_matrix(3alleg4), get_z_rotate_matrix(3alleg4)

version 4.4.2 Allegro