def pixels_alpha (surface):
"""pygame.surfarray.pixels_alpha (Surface): return array
Reference pixel alphas into a 2d array.
Create a new 2D array that directly references the alpha values
(degree of transparency) in a Surface. Any changes to the array will
affect the pixels in the Surface. This is a fast operation since no
data is copied.
This can only work on 32-bit Surfaces with a per-pixel alpha value.
The Surface this array references will remain locked for the
lifetime of the array.
"""
global numpysf
try:
return numpysf.pixels_alpha(surface)
except AttributeError:
import pygame._numpysurfarray as numpysf
return numpysf.pixels_alpha(surface)
def pixels_alpha (surface):
"""pygame.surfarray.pixels_alpha (Surface): return array
Reference pixel alphas into a 2d array.
Create a new 2D array that directly references the alpha values
(degree of transparency) in a Surface. Any changes to the array will
affect the pixels in the Surface. This is a fast operation since no
data is copied.
This can only work on 32-bit Surfaces with a per-pixel alpha value.
The Surface this array references will remain locked for the
lifetime of the array.
"""
return numpysf.pixels_alpha (surface)
def pixels_alpha(surface):
"""pygame.surfarray.pixels_alpha (Surface): return array
Reference pixel alphas into a 2d array.
Create a new 2D array that directly references the alpha values
(degree of transparency) in a Surface. Any changes to the array will
affect the pixels in the Surface. This is a fast operation since no
data is copied.
This can only work on 32-bit Surfaces with a per-pixel alpha value.
The Surface this array references will remain locked for the
lifetime of the array.
"""
if __arraytype == "numeric":
return numericsf.pixels_alpha(surface)
elif __arraytype == "numpy":
return numpysf.pixels_alpha(surface)
raise NotImplementedError("surface arrays are not supported")