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30 lines
1.4 KiB
Markdown
30 lines
1.4 KiB
Markdown
[Check out this modern re-implementation of the library.](https://github.com/TeamHypersomnia/rectpack2D/tree/master)
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# rectpack2D
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Tiny rectangle packing library allowing multiple, dynamic-sized bins.
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The code is ugly, I know, I was learning the language at the time.
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Nevertheless, it's been years since I used it for the first time in my open-source shooter [Hypersomnia][3].
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No crashes so far and works quite fast.
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Copied from: http://gamedev.stackexchange.com/a/34193/16982
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[This algorithm][1] should meet every gamedeving needs.
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It's very, very efficient, lightweight, and I've myself improved it with searching the best possible sorting function
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(whether it's by area, perimeter, width, height, max(width, height))
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and the best possible bin size so **you don't have to hardcode the width/height yourself anymore**.
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It's also easy to design it so it automatically portions out your rectangles into more bins
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if one with fixed maximum size is not sufficient, so you probably want to pass all your textures to it
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and pass a maximum texture size as the value for maximum bins' dimension, and BAM !
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You have your texture atlases ready to be uploaded to GPU. Same goes for font packing.
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400 random rectangles, automatically divided into 3 bins of maximum 400x400 size:
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![enter image description here][2]
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[1]: http://www.blackpawn.com/texts/lightmaps/default.html
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[2]: http://i.stack.imgur.com/mOgcn.png
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[3]: https://github.com/TeamHypersomnia/Hypersomnia
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