Using a Lua module in a custom renderer

Questions
1

I would like to store information like render.get_window_width() so that scripts outside of the render script can access it. There are a few posts that suggest using a Lua module to hold this information. I’m trying to do this using the following line (which works in my other scripts):

require "scripts.renderer_helper";

The error I’m getting back is:

ERROR:SCRIPT: custom_render/custom.render_script:1: module 'renderer_helper' not found: no file 'renderer_helper'

How do I load a module in the render script? Or am I going about this the wrong way?

3

Can you double check that you have a file called renderer_helper.lua in the folder named scripts?

4

Below is a picture of my project structure:

Pasted image803×306 27.4 KB

I know Defold can see the renderer_helper.lua script because my input_test script is able to load and access the information inside. It seems like something different about the custom.render script works with require.

5

Could you please try and remove the semi-colon at the end of that line?

6

Darn it! My day job is C# coding so semicolons are transparent to me. Thanks for the help with catching that stupid mistake.

2 Likes
7

It’s actually not stupid. Semi-colons are not forbidden. In Lua you can use semi-colons to have multiple statements on a single line. On the other hand I wouldn’t say that it is encouraged and you will rarely see it used.

During our build process we scan all script files for require() statements to get a list of all *.lua files to include in the build, and it seems like that semi-colon confused our build tool.

2 Likes