LÖVE

Posted: **Sun Sep 24, 2017 1:55 pm**

Hello,

I have the following folder structure :

/classes
classes.lua
--/data
--/data.lua
--/components
--/components.lua
----/movement
----/movement.lua

you get the idea. And I wonder if there is a way to require file like this

require('classes.components.movement')

instead of :

require('classes.components.movement.movement')

Thanks for enlightements

Posted: **Sun Sep 24, 2017 2:13 pm**

Sure, by moving movement.lua one level up into the components folder.

Posted: **Sun Sep 24, 2017 4:27 pm**

Without messing with the structure, as grum suggested, you have a couple of options available:

You can also put a file title "init.lua" inside of each directory, such as movement, which looks something like this:
Code: Select all
```
-- classes/components/movement/init.lua
-- Match the parent directory
local path = (...):match( '(.-)[^%./]+$' )
return path .. 'movement.lua'
```
Then you could require the directory itself, which would require the specific file:
Code: Select all
```
-- main.lua
require 'classes.components.movement'
```
Though this is a bit of a hassle, since you need to create a new file for each class that you make.
Alternatively, you could try messing with the package.path variable, though it could have some hard-to-find consequences later on if you're not careful with naming your files:
Code: Select all
```
-- main.lua
package.path = './classes/components/?/?.lua;' .. package.path
require 'movement' 
```

If you really wanted to achieve the exact structure you described without creating a custom file for each directory you could mokeypatch, or overwrite the require function, which I would strongly advise against and is typically not recommended (though still doable if you're desperate enough):

Code: Select all

-- Wrap everything in a do-block to reduce pollution to the local scope
do
	-- Store the old require to be used later
	local _require = require
	
	-- Store the items in the directory, to check if one of the names matches
	local directory = 'classes/components/'
	local fileNames = love.filesystem.getDirectoryItems( directory )
	
	-- Overwrite require globally
	function require( path )
		-- Check to see if the last part of the path matches one of the fileNames
		-- Get the last part of the path
		local fileName = path:match( '^.-([^%./]+)$' )
		for _, name in ipairs( fileNames ) do
			-- File matches; use special format
			if fileName == name then
				return _require( directory .. fileName .. '.' .. fileName )
			end
		end
		
		-- File does not match; use regular require
		return _require( pathname )
	end
end

require 'classes.components.movement'

Posted: **Mon Sep 25, 2017 6:12 pm**

Thanks for answers. I changed structure like Grump suggested.

And I didn't know about init files. Thank you for such quality answer Davis.

LÖVE

Require path

Require path

Re: Require path

Re: Require path

Re: Require path