Automatically use transform when showing image

[David]

Ren'Py allows you to specify multiple transforms separated by commas when showing a character.

Code: Select all

show person mood at center, mytransform

But is there an easy way to associate a given transform with an image so that it's called implicitly when you show the image? Like so:

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# some code that associates "person" images with mytransform

show person mood at center # actually applies mytransform and center

# some code that associates "person" images with myothertransform

show person mood at right # actually applies myothertransform and right

Note that I'm using automatic image loading and version 6.99.12. Thanks in advance!

[jw2pfd]

I think the easiest way is to stick with transforms separated by commas. There are two things I looked up that are very roughly in the ballpark of what you're describing:
https://renpy.org/doc/html/displayables.html#At
https://renpy.org/doc/html/config.html? ... _transform

[Imperf3kt]

https://www.renpy.org/doc/html/character_callbacks.html

[David]

I think the easiest way is to stick with transforms separated by commas. There are two things I looked up that are very roughly in the ballpark of what you're describing:
https://renpy.org/doc/html/displayables.html#At
https://renpy.org/doc/html/config.html? ... _transform

Hmm, yes, these are very close to what I want, but not quite there. Still, useful to know about and could form part of the solution. Thank you!

https://www.renpy.org/doc/html/character_callbacks.html

Thank you. I had a vague feeling that character callbacks would be the answer when I was doing my own research, but I'm just not sure how exactly.

First off, will either of these be called on a show statement dealing with the character in question? The docs indicate that they are called according to say statements.

"begin"
Called at the start of a say statement.
"show"
Called before showing each segment of dialogue. Dialogue may be separated into multiple segments by the {w} or {p} text tags, but always consists of at least one segment.

Second off, what all gets passed to the callback function (I see it takes **kwargs) and how do I actually make it apply the transform? Is it a case of the current character displayable (hope my terminology is right) being passed in and then I have to call a transform on it and return it? Or does it work in some other way?

I'm still trying to build up a model of how this system works, so please let me know if I'm making any egregious errors in the assumptions I've formulated these questions with.

[Imperf3kt]

I'm sorry, but I am not skilled enough to answer, which is why I only left a link.
I wish you luck.

[PyTom]

config.tag_transform could work, but it's tag rather than image based.

https://www.renpy.org/doc/html/config.h ... _transform

[David]

config.tag_transform could work, but it's tag rather than image based.

https://www.renpy.org/doc/html/config.h ... _transform

Thank you. After looking further into this, yes -- nearly. I didn't previously understand that tags included character names.

So I can get close to what I want with this (which is to associate transforms to characters), but the trouble is that tag_transform specifies default transform/s to be used in the event where no at clause is defined. Whereas I want to specify transform/s to be used both on their own (no at clause) and in addition to transforms specified by the at clause.

But thanks again -- I now have a clear view of how to achieve what I want to. I would get exactly what I want by changing the behaviour of tag_transform (or a new, similarly named dict) to append itself to the at_list in the show function. Which probably means taking a look at creator-defined statements (or directly altering RenPy's code, but I'd prefer not to). I'll post the solution in this thread once I figure it out.