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al_draw_rotated_bitmap - Allegro 5 API
#include <allegro5/allegro.h> void al_draw_rotated_bitmap(ALLEGRO_BITMAP *bitmap, float cx, float cy, float dx, float dy, float angle, int flags)
Draws a rotated version of the given bitmap to the target bitmap. The bitmap is rotated by 'angle' radians clockwise. The point at cx/cy relative to the upper left corner of the bitmap will be drawn at dx/dy and the bitmap is rotated around this point. If cx,cy is 0,0 the bitmap will rotate around its upper left corner. · cx - center x (relative to the bitmap) · cy - center y (relative to the bitmap) · dx - destination x · dy - destination y · angle - angle by which to rotate (radians) · flags - same as for al_draw_bitmap(3alleg5) Example float w = al_get_bitmap_width(bitmap); float h = al_get_bitmap_height(bitmap); al_draw_rotated_bitmap(bitmap, w / 2, h / 2, x, y, ALLEGRO_PI / 2, 0); The above code draws the bitmap centered on x/y and rotates it 90° clockwise. See al_draw_bitmap(3alleg5) for a note on restrictions on which bitmaps can be drawn where.
al_draw_bitmap(3alleg5), al_draw_bitmap_region(3alleg5), al_draw_scaled_bitmap(3alleg5), al_draw_scaled_rotated_bitmap(3alleg5)