How do I choose numbers randomly?

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:bust_in_silhouette: Asked By KramchayDig

I want to know how to write a code of choosing only 2 numbers and I’m not talking about ranging between values. I like the code to pick absolute numbers that is written in the argument.

:bust_in_silhouette: Reply From: whiteshampoo

Hi there,

i’m not 100% sure, if i understand your question correctly, but have a look at this functions:

func randa(array : Array):
	# Pick random number from input-array
	return array[randi() % len(array)]
func randa2(array : Array):
	# Create an array with 2 numbers from the input-array
	return [randa(array), randa(array)]
func randav(array : Array):
	# Create an Vector2 with numbers from the input-array
	return Vector2(randa(array), randa(array))

You can try/use it like this:

func _ready():
	# Example
	var array : Array = [0, 13, 42, 69, 101, 1337] # Random numbers
	# Example with 1 Number
	var number_1 = randa(array)
	var number_2 = randa(array)
	print("1:  ", number_1)
	print("2:  ", number_2)
	# Example with Array
	var numbers = randa2(array)
	print("[]: ", numbers)
	# Example with Vector2
	var vector = randav(array)
	print("v2: ", vector)

This might do what you want :slight_smile:

That’s what I was looking for thanks

KramchayDig | 2020-08-22 07:47

:bust_in_silhouette: Reply From: jasperbrooks79

I visual script, there’s a node ( box ) called rand ( integer ) and, randf ( float ) . . The boxes sort of creates a ’ near ’ random number, from algorhitms, because computers can’t be completely random . .

randi returns an integer, randf returns a random float, maybe those are ones, you are in need of <3