Help with heartbeast tutorial

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Key

Hello, I'm up to part 21 of heartbeast RPG tutorial and for some reason I'm getting a "to many arguments error" for the wander state controller. I don't understand why because my code is identical to his and it doesn't make sense that a list can only have 1 thing because what's the point of randomising something with one outcome.

cybereality

Can you show your function for pick_random_state?

Key

cybereality

So the list has to be a single array, not multiple arguments. Like this:

state = pick_random_state([IDLE, WANDER])

Key

I don't understand could you explain what the square brackets do? thank you for the solution

Pixophir

That's a bit lengthy to explain, but in short it is the syntax of the language, and the error is probably one that every beginner to programming commits.

In short: the function has one single argument 'state_list', but with IDLE, WANDER you pass in two. The interpreter can't make sense of it, so it shows an error and refuses execution. GDScript's syntax for an array is a comma-separated list [1,2,3], so that's the right form of saying this.

Maybe your confused because there is no explicit data type. The interpreter (and the programmer) sometimes just have to guess them. This is called duck-typing.

You can read all about GDScript here, and don't worry, this may all take some time to sink in:

https://docs.godotengine.org/en/latest/tutorials/scripting/gdscript/index.html