DOKK / manpages / debian 12 / allegro5-doc / al_rotate_transform.3alleg5.en
al_rotate_transform(3alleg5) al_rotate_transform(3alleg5)

al_rotate_transform - Allegro 5 API

#include <allegro5/allegro.h>
void al_rotate_transform(ALLEGRO_TRANSFORM *trans, float theta)
    

Apply a rotation to a transformation.

Parameters:

trans - Transformation to alter
theta - Rotation angle in radians

al_translate_transform(3alleg5), al_scale_transform(3alleg5), al_build_transform(3alleg5)

Allegro reference manual