mirror of
https://github.com/Dadido3/noita-mapcap.git
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53 lines
1.9 KiB
Lua
53 lines
1.9 KiB
Lua
-- Copyright (c) 2022 David Vogel
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--
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-- This software is released under the MIT License.
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-- https://opensource.org/licenses/MIT
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-- Allows Noita mods to reload themselves every now and then.
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-- This helps dramatically with development, as we don't have to restart Noita for every change.
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-- To accomplish this, we need to override the default behavior of dofile and some other things.
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local LiveReload = {}
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local oldDofile = dofile
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---Overwritten dofile to execute a lua script from disk and cirumvent any caching.
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---Noita for some reason caches script files (Or loads them into its virtual filesystem)(Or caches compiled bytecode), so reloading script files from disk does not work without this.
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---
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---This is not fully conform the the standard lua implementation, but so isn't Noita's implementation.
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---@param path string
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---@return any result
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---@return string|nil err
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function dofile(path) ---TODO: Consider moving dofile into compatibility.lua
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local func, err = loadfile(path)
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if not func then return nil, err end
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local status, res = pcall(func)
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if not status then return nil, res end
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return res, nil
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end
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---Reloads the mod's init file in the given interval in frames.
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---For reloading to work correctly, the mod has to be structured in a special way.
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---Like the usage of require and namespaces.
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---
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---Just put this into your `OnWorldPreUpdate` or `OnWorldPostUpdate` callback:
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---
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--- LiveReload:Reload("mods/your-mod/", 60) -- The trailing path separator is needed!
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---@param modPath string
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---@param interval integer
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function LiveReload:Reload(modPath, interval)
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interval = interval or 60
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self.Counter = (self.Counter or 0) + 1
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if self.Counter < interval then return end
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self.Counter = nil
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local res, err = dofile(modPath .. "init.lua")
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if err then
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print(string.format("Error reloading mod: %s", err))
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error(string.format("Error reloading mod: %s", err))
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end
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end
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return LiveReload
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