al_build_transform3alleg5
Allegro 5 api
Usage
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#include <allegro5/allegro.h> void al_build_transform(ALLEGRO_TRANSFORM *trans, float x, float y, float sx, float sy, float theta)
Overview
Builds a transformation given some parameters. This call is equivalent to calling the transformations in this order: make identity, rotate, scale, translate. This method is faster, however, than actually calling those functions.
Parameters:
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trans - Transformation to alter
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x, y - Translation
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sx, sy - Scale
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theta - Rotation angle in radians
Note: this function was previously documented to be equivalent to a different (and more useful) order of operations: identity, scale, rotate, translate.
Releases
6 releases since Debian 8 (Jessie); the text changed 5 times.