User-Defined Displayable

script.rpy

init python:

    class DrawImage(renpy.Displayable):

        def __init__(self, child, opaque_distance, transparent_distance, **kwargs):
            # Pass additional properties on to the renpy.Displayable
            # constructor.
            super(DrawImage, self).__init__(**kwargs)
            # The child.
            self.child = renpy.displayable(child)
            # The width and height of us, and our child.
            self.width = 0
            self.height = 0

        def render(self, width, height, st, at):
            # Create a transform
            t = Transform(child=self.child)
            # Create a render from the child.
            child_render = renpy.render(t, width, height, st, at)
            # Get the size of the child.
            self.width, self.height = child_render.get_size()
            # Create the render we will return.
            render = renpy.Render(self.width, self.height)
            # Blit (draw) the child's render to our render.
            render.blit(child_render, (0, 0))
            # Return the render.
            return render

screen draw_image:
    add DrawImage("logo.png", 100, 200):
        xalign 0.5
        yalign 0.5

label start:
    show screen draw_image

    "Let's draw an image!"

    return