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Tutorial Tuesday! (programming.dev)

submitted 1 year ago by Ategon@programming.dev to c/godot@programming.dev

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Welcome to Tutorial Tuesday! This is a weekly thread where you can post any kind of tutorial for how to do things using Godot or request one from others

Text tutorials, video tutorials, image tutorials, linking to a post in the community, etc. are all allowed. If you feel it deserves its own post feel free to instead post it as a separate post and then link it here

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[–] russmatney@programming.dev 8 points 1 year ago

I was curious about writing one-off scripts in Godot, so here's a tiny example for doing that in Godot 4.

./hello-godot.gd (also in my dotfiles):

#!/usr/bin/env -S godot --headless --script
extends SceneTree

func _init():
  print("hello godot!")
  print("args", OS.get_cmdline_args())
  quit()

Note the first line, which invokes godot and includes the --headless and --script arguments. You can read more about these args via godot --help.

Once the script has executable permissions (typically via chmod +x hello-godot.gd), you can run it in a shell like:

./hello-godot.gd "some arg" "some other arg" 123

That should output something like:

hello godot!
args["-s", "/home/russ/.local/bin/hello-godot.gd", "some arg", "some other arg", "123"]

This kind of thing can be useful for running tests via something like GUT (which is where I started digging into this), or exporting games in scripts/CI.

Which makes me think I should look into how some of those godot CI docker images run - maybe there are other arguments/features/best-practices there to build on.

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