this post was submitted on 09 May 2024
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Weird limitations with Expressions (lemmy.blahaj.zone)
submitted 7 months ago by Smorty@lemmy.blahaj.zone to c/godot@programming.dev
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I have tried myself at using Expressions for quickly throwing together some simple functionality right in the editor, without opening the script editor. I just export an array of Strings. But apparently assignment is not allowed in these expressions! Method calls are fine, but assignment doesn't seem to be okay. Here is what this looks like:

The method calls actually work perfectly fine here, but the assignments (with = in the line) do not seem to work. It seems to complain about there missing another = even though it is already there. Does someone have an idea on why this might happen?

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[–] stickyShift@midwest.social 6 points 7 months ago (1 children)

I am not familiar with the feature you're using, but an "expression" is just some code that evaluates to a value; in other words, it's the right side of the equals sign.

[–] Smorty@lemmy.blahaj.zone 5 points 7 months ago (1 children)

Oh yeah, that makes sense. In the documentation the only actual example they give for expressions is a math equasion, so I guess the code-executing features just came naturally... So I guess I will have to write methods for everything now...

[–] Maddier1993@programming.dev 1 points 7 months ago (1 children)

Or maybe try to have your methods as a left side.. example: Expression: print()

[–] Smorty@lemmy.blahaj.zone 1 points 7 months ago

This I dotn exactly understand. Do you mean it like this

print(Input.mouse_mode = Input.MOUSE_MODE_CAPTURED)

[–] popcar2@programming.dev 6 points 7 months ago* (last edited 7 months ago)

Most variables have setters for situations like this. Rather than using get_tree().paused = false, try get_tree.set_pause(false). There's also Input.set_mouse_mode(), you'll see them under the variable names in the docs.