Random Numbers from lowest to highest

Bzyi

Hello!

Just a starter and I'm trying to create Number Generator which generates numbers in Labels between 1 to 50 when Button is pressed. Well it does it but it gives same numbers twice and numbers are not lowest to higest. What I created is button, 5 labels and code what looks like this:

------------------------START--------------------------

extends Node2D

onready var label = $Label
onready var label2 = $Label2
onready var label3 = $Label3
onready var label4 = $Label4
onready var label5 = $Label5

func _ready() -> void:
	randomize()


func _on_Button_pressed():
	var rgn = randi()% 50+1
	var rgn2 = randi()% 50+1
	var rgn3 = randi()% 50+1
	var rgn4 = randi()% 50+1
	var rgn5 = randi()% 50+1
		
	label.set_text(String(rgn))
	label2.set_text(String(rgn2))
	label3.set_text(String(rgn3))
	label4.set_text(String(rgn4))
	label5.set_text(String(rgn5))

---------------------------END-----------------------------

So how can i make this simple? I don't know if I need labels for all the numbers. But as I said...I want numbers to generate from lowest to highest and not same number twice...how should I do that. Could you please tell me how would YOU do this?

cybereality

Well for the lowest to highest, you could add the random numbers to an array and then sort the array. In terms of getting doubles, you can't avoid that (it is random), but what you can do is make a while loop and keep generating a new random number until there is no double. The key is storing the random values in an array, so you can process the array in the way you want.

TwistedTwigleg

Welcome to the forums @Bzyi!

What @cybereality suggested is the easiest way to do it and the way I've done it a few times when needing to generate random numbers in order. The code is something like this:

number_array = []
while number_array.size() < 5:
	var randon_number = randi()  % 50 + 1
	if (number_array.has(random_number) == false):
		number_array.append(random_number)
number_array.sort()

# then to use it:
label.set_text(String(number_array[0]))
label2.set_text(String(number_array[1]))
label3.set_text(String(number_array[2]))
label4.set_text(String(number_array[3]))
label5.set_text(String(number_array[4]))

(Also, I formatted the code in the opening post :smile: )

Bzyi

Thanks. But I was just thinking...if there is only one Label -field and when "Get Numbers" button is pressed it gives the numbers like: 5, 10, 12, 14, 20. Is it then possible to avoid doubles like @cybereality said "In terms of getting doubles, you can't avoid that". But how is that easier to do that there is comma after all the numbers?

It goes something like this: User presses button and program gives numbers from lowest to highest in one Label -field comma separated. And avoiding doubles. Is that avoiding then possible if there is only one Label -field?

This is not so easy to trying to learn new coding language and making something that makes sense. :) But Godot is quite nice tool for making cool games or apps...when first learning to use it :)

cybereality

You can use the same code that @TwistedTwigleg posted, just add the Strings together and add the commas. It's the same principle as multiple Labels.

label.set_text(String(number_array[0]) + "," + String(number_array[1]) )

Bzyi

Thanks! Working fine! This was very good practice.