1al_draw_rotated_bitmap(3)  Library Functions Manual  al_draw_rotated_bitmap(3)
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NAME

6       al_draw_rotated_bitmap
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SYNOPSIS

9              #include <allegro5/allegro.h>
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11              void al_draw_rotated_bitmap(ALLEGRO_BITMAP *bitmap,
12                 float cx, float cy, float dx, float dy, float angle, int flags)
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DESCRIPTION

15       Draws  a rotated version of the given bitmap to the target bitmap.  The
16       bitmap is rotated by `angle' radians clockwise.
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18       The point at cx/cy relative to the upper left corner of the bitmap will
19       be  drawn  at  dx/dy  and  the bitmap is rotated around this point.  If
20       cx,cy is 0,0 the bitmap will rotate around its upper left corner.
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22       · cx - center x (relative to the bitmap)
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24       · cy - center y (relatice to the bitmap)
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26       · dx - destination x
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28       · dy - destination y
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30       · angle - angle by which to rotate
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32       · flags - same as for al_draw_bitmap(3)
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34       Example
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36              float w = al_get_bitmap_width(bitmap);
37              float h = al_get_bitmap_height(bitmap);
38              al_draw_rotated_bitmap(bitmap, w / 2, h / 2, x, y, ALLEGRO_PI / 2, 0);
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40       The above code draws the bitmap centered on  x/y  and  rotates  it  90°
41       clockwise.
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SEE ALSO

44       al_draw_bitmap(3),  al_draw_bitmap_region(3), al_draw_scaled_bitmap(3),
45       al_draw_scaled_rotated_bitmap(3)
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49Allegro reference manual                             al_draw_rotated_bitmap(3)
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