Counting of items in a given scene

Help Programming
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1

Godot Version 4.3

My Situation:

I have planned several levels each with a different amount of collectables. It is supposed to be mandatory to collect all of them to activate the exit and be able to leave the level.

My Goal:

To have the amount of collectables in a given scene be automatically counted and use that value in different places like the counter in the UI (n-amount found/[amount of collectables]) and in the code as a pre-requisite for the goal working.

My Idea:

I think one way would be to assign the collectables to a group and have all the items in a scene belonging to such group be counted. But that’s guess-work on my behalf. I really have no idea to approach this code-wise.

Your solution:

Do you think that’s a viable approach? Is there a command that does what I envision? Do you have a better approach for this case?

Thank you for your time and happy new year! :slight_smile:

2

Your idea is one totally viable way to do this. You can find all collectibles in the scene by calling SceneTree.get_nodes_in_group() function.

If the array is empty, you can run your “exit” code.

var collectibles: Array[Node] = get_tree().get_nodes_in_group("collectibles")
if collectibles.is_empty():
	# exit
2 Likes
3

I think that’s a perfectly viable way to count collectables in a scene. You could use SceneTree — Godot Engine (stable) documentation in English to count the nodes in that group.