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ThomasRinsma
I realized that the PDF engines of modern desktop browsers (PDFium and PDF.js) support JavaScript with enough I/O primitives to make a basic game like Tetris.
It was a bit tricky to find a union of features that work in both engines, but in the end it turns out that showing/hiding annotation "fields" works well to make monochrome pixels, and keyboard input can be achieved by typing in a text input box.
All in all it's quite janky but a nice reminder of how general purpose PDF scripting can be. The linked PDF is all ASCII so you can just open it in a text editor, or have a look at the source code here: pdftris/gengrid.py at main · ThomasRinsma/pdftris
Comments URL: Show HN: Tetris in a PDF | Hacker News
Points: 538
# Comments: 103
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It was a bit tricky to find a union of features that work in both engines, but in the end it turns out that showing/hiding annotation "fields" works well to make monochrome pixels, and keyboard input can be achieved by typing in a text input box.
All in all it's quite janky but a nice reminder of how general purpose PDF scripting can be. The linked PDF is all ASCII so you can just open it in a text editor, or have a look at the source code here: pdftris/gengrid.py at main · ThomasRinsma/pdftris
Comments URL: Show HN: Tetris in a PDF | Hacker News
Points: 538
# Comments: 103
Continue reading...