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Avery Hiebert1 year ago

Sorry to ask more follow up questions, but I have a theory about this bug and some more information would be useful, since I can't reproduce it myself.

When you say "the hallway to the professor's office" was inaccessible, do you mean that you couldn't go from the library entrance to the corridor, or that you could enter the corridor but couldn't enter the professor's office itself?  Also, were you able to go to the loading area and/or ring the call bell next to the librarian?

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hankworx1 year ago(+1)

Heh you seem to be on the right track with your theory

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Avery Hiebert1 year ago (2 edits)

Wow, it's worse than I thought.  At this point I'm pretty sure that it's not just different browsers that're the issue, it's a combination of different browsers and different system display gammas (!?).

The way I'm defining clickable areas involves rendering images with big blocks of colour (blue for one item, green for another, etc.) on a canvas, and then checking the pixel colour at the location that was clicked.  But some sort of arcane gamma correction details in the PNG standard can apparently cause PNGs to render slightly differently on different systems (see https://hsivonen.fi/png-gamma/ , I think).  Great! You love to see it.  And in this case, specifically the areas that I coloured green are broken for some and not others.

Thanks for the help!  Hopefully I can fix this when I have time & get permission to upload the fixed version before the jam ends...

Update: I fixed it, I think!

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