Arcs unimplemented? (geometry)

[ApolloM]

Hi all. I'm trying to create a pie chart. I started by following the Creator-Defined Displayables example and managed to get a circle drawn to the screen with a custom displayable using canvas.circle(...). Then I tried canvas.arc(...), but I get an exception that says error: Not Implemented. Is there no way to draw arcs right now?

Here's my code snippet:

Code: Select all

init python:

    import math

    class PieChart(renpy.Displayable):

        def __init__(self, **kwargs):
            super(PieChart, self).__init__(**kwargs)

        def render(self, width, height, st, at):
            render = renpy.Render(width, height)
            canvas = render.canvas()
            horizontal = width / 2
            vertical = height / 2
            radius = vertical
            if horizontal < vertical:
                radius = horizontal
            # canvas.circle("#FFFFFF", (horizontal, vertical), radius)
            canvas.arc("#FFFFFF", [radius, radius], 0.0, 1.0)
            return render

The linked documentation says "A canvas object has methods corresponding to the pygame.draw functions", and links to here, where there is an arc function.

[Per K Grok]

Hi all. I'm trying to create a pie chart. I started by following the Creator-Defined Displayables example and managed to get a circle drawn to the screen with a custom displayable using canvas.circle(...). Then I tried canvas.arc(...), but I get an exception that says error: Not Implemented. Is there no way to draw arcs right now?

Here's my code snippet:

Code: Select all

init python:

    import math

    class PieChart(renpy.Displayable):

        def __init__(self, **kwargs):
            super(PieChart, self).__init__(**kwargs)

        def render(self, width, height, st, at):
            render = renpy.Render(width, height)
            canvas = render.canvas()
            horizontal = width / 2
            vertical = height / 2
            radius = vertical
            if horizontal < vertical:
                radius = horizontal
            # canvas.circle("#FFFFFF", (horizontal, vertical), radius)
            canvas.arc("#FFFFFF", [radius, radius], 0.0, 1.0)
            return render

The linked documentation says "A canvas object has methods corresponding to the pygame.draw functions", and links to here, where there is an arc function.

I have previously drawn lines in a ren'py game (for a ray gun effect). I then imported pygame and used pygame.draw.line on a surface. I now tested doing pygame.draw.arc in the same way, but I too got an 'not implemented' error.
pygame.draw.arc does however work when I do it outside ren'py with only pygame and python.

I don't know why it didn't work in ren'py.