pie charts

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pucedragonlord
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pie charts

#1 Post by pucedragonlord » Thu Sep 18, 2014 2:41 pm

I'd like to implement some sort of visual percentage representation in my game. Pie charts are the standard for such data, but I'm not sure how to go about them in RenPy in any way that isn't a little hackey (making a 1/360th of a circle and repeating it, for example). Anyone know a good way to go about this? Could I even just do it in Python using whatever rendering base RenPy uses (OpenGL? I'm actually not sure)?

This is a bit of a challenge, to be sure, but it would be neat to see it done.
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Kaen
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Re: pie charts

#2 Post by Kaen » Thu Sep 18, 2014 4:42 pm

I'd like to use it as well! If you find a way how to do this, please share >~<

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Re: pie charts

#3 Post by PyTom » Thu Sep 18, 2014 8:54 pm

There isn't really a good way to do this at the moment. At some point, I'll add support for geometry, but we don't have that yet.
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Re: pie charts

#4 Post by pucedragonlord » Thu Sep 18, 2014 9:19 pm

hackey ways it is, then!
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Re: pie charts

#5 Post by fluxus » Fri Sep 26, 2014 5:20 am

Wouldn't a DynamicDisplayable be able to do this?

I think PyGame has some circle and arc functionality. I'm not entirely sure of how PyGame should be used from inside a DynamicDisplayable, or if there's some explodey potentials in that mix, but offhand it seems like a good idea.

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Re: pie charts

#6 Post by xela » Fri Sep 26, 2014 7:57 am

fluxus wrote:Wouldn't a DynamicDisplayable be able to do this?

I think PyGame has some circle and arc functionality. I'm not entirely sure of how PyGame should be used from inside a DynamicDisplayable, or if there's some explodey potentials in that mix, but offhand it seems like a good idea.
Doesn't look like UDD is going to work (edges are messy, both with circle and polygons approach):

Image

Best bet is to try and slice predefined images but I am not sure how to go about writing that code atm.
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Re: pie charts

#7 Post by fluxus » Fri Sep 26, 2014 8:32 am

xela wrote:
fluxus wrote:Wouldn't a DynamicDisplayable be able to do this?
Doesn't look like UDD is going to work (edges are messy, both with circle and polygons approach)
Hmm. I see what you mean. And yes, sorry, I did mean userdefined displayable.
Strange thing with the blurred edges though.

Winter Wolves, in Loren, displayed hit points and mana points with circular-style bars.
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xela wrote: Best bet is to try and slice predefined images but I am not sure how to go about writing that code atm.
You could always.. rotate and crop a semicircle, then livecomposite with another (or well, the same) semicircle depending on whether you want more or less than 180 degrees.

Not the most elegant solution, I'm sure :]

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Re: pie charts

#8 Post by xela » Fri Sep 26, 2014 8:57 am

I think they just used conditioned images in Loren or a custom bar(less likely). I coded a two images bar one of which rotated over the other similar to that for someone on this forum few month back. There is a pretty full circle bar in a game I worked on for a bit made out of 110 images.

I have no idea why udd comes out like that. That was rendered using polygons but even a circle seems to come out edged a bit.

There is no reason for a 'hacky' way not to work. You can even recolor the segment in renpy.
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