Why bzip is the best compression algorithm for constrained environments like ComputerCraft
By
signa11
Slow-proofed and worth the wait. Worth its weight in flour.
Summary
The article explores implementing the bzip compression algorithm in Lua for ComputerCraft, a Minecraft mod that allows programming in-game. The author explains why bzip, despite being outdated and criticized, is actually the best choice for this constrained environment due to its simplicity and compression ratio. The piece walks through implementing bzip's core components: Burrows-Wheeler Transform (BWT), Move-to-Front Transform (MTF), zero-length coding, and Huffman coding, all within Lua's limitations. The author argues that bzip's simplicity makes it ideal for scenarios where decoder size matters, such as in-game programming with limited disk space.
Key quotes
· 3 pulledSo the question becomes: what's the shortest, simplest, most ratio-efficient compression algorithm?
My answer is bzip, even though this algorithm has been critiqued multiple times and has fallen into obscurity since xz and zstd became popular.
I initially thought this was a complex question full of tradeoffs, but it turns out it's very clear-cut.
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