Using Pixel Mutation

Assumes you finished getting started.

Pixel mutation is not currently implemented to surfaces in rubato as of 2.0.0. This will hopefully come in future.

$ pip install numpy

In your code we need to import numpy and sdl2.ext.pixelaccess:

import numpy, sdl2.ext.pixelaccess as pixel_access

This demo will show how to change specific image pixels.

def draw_on(surf: sdl2.SDL_Surface):
    pixels: numpy.ndarray = pixel_access.pixels2d(surf)
    for x in range(pixels.shape[0]):
        for y in range(pixels.shape[1]):
            random.shuffle((new := list(Defaults.color_defaults.values())))
            pixels[x][y] = Color(*(new[0])).rgba32
    return surf

image.image = draw_on(image.image)

The pixels2d() function takes in an SDL_Surface and will return a numpy array which will change the surfaces pixels by reference.

Note

If you just need to draw to the screen use Display.draw_point

The source code is available here.