treehouse/content/programming/projects/stitchkit.tree
2024-07-24 18:20:12 +02:00

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- [repo][def:stitchkit/repo]
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- a heartwarmingly joyful to use modding toolkit for A Hat in Time
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+ ### philosophy
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+ better than vanilla
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- the experience of using Stitchkit should always be more pleasant than the vanilla modding tools
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- if it's somehow worse, that's a bug
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+ fix the problems, don't fear breakage
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- applies to [MuScript][branch:programming/projects/muscript] in particular - we are not afraid to make the language better, even if it breaks your code
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+ if it ain't broke, don't fix it
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- while fixing issues is important, we want the modding tools to remain familiar to existing vanilla users.
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- for example the syntax of UnrealScript may be a bit dated, but it is perfectly readable without much reason to change it. no need to invent a new language.
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+ be helpful
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- people who come to mod AHiT are often not professional programmers to put up with shitty tools that have overly cryptic error messages and terrible user experience across the board.
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- we want to help people fuel their imagination instead of hindering it
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+ be lazy
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- don't do work nobody asks for
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- compiling things the user doesn't care about is a pointless waste of computer resources
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- implementing things that don't matter for Hat modding is a pointless waste of time
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+ ### insanium
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- section for absolutely insane ideas that will never work but fill my inner hackerman with joy
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- organized from least insane to most insane
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- also see [MuScript's insanium][branch:01HA4KNTTGG3YX2GYFQ89M2V6Q]
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+ hot reloading scripts in the editor
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- in theory if we control the editor process, we should be able to search the address space for various anchor points
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+ scripts can be up to 65536 bytes long - this might not seem like much, but bytecode is much more compact than text!
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- from my analyses when building [Yarnbox][branch:programming/projects/yarnbox], most chunks of bytecode don't exceed 4096 bytes
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+ the engine loads your bytecode _mostly_ verbatim, so we could include a recognizable signature at the end of every script
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- I imagine we could use a short string of bytes that's unlikely to collide with anything yet fast to search for. probably 16 bytes (128 bits) would be enough but we can experiment
with less
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- I say it loads your code _mostly_ verbatim because it actually parses the bytecode to translate archive object indices to
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- since we can't reallocate memory, we'll have to always preallocate all 65536 bytes - but 64 KiB isn't that much in the first place,
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- well not until you realize how many functions there are in the engine (I haven't counted.) but you can't modify those so no need to support this functionality there
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- and the typical mod doesn't have that many functions (what, 200 maybe? that would be ~12.5 MiB of memory, which ain't much)
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- with the bytecode of the script found in memory, we can modify it arbitrarily however we want
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- except it's not that simple because scripts contain object references, and we have no way to resolve those to addresses
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- we could use `DynamicLoadObject` though, as cursed as that is :thinking:
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- the downside of this is that we could only modify the bytecode of functions.
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- I imagine there could be some hacks we could do to trigger running arbitrary code inside the context of the editor, but I haven't thought those through yet fully