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Asked By
9BitStrider
This might be a bit confusing, but I’m trying to pull a value off a variable based on it’s name. I have two variables that help with this.
weap_id (Weapon ID from 0 to 11)
weapon0
weapon1
weapon2
weapon3
Etc. (These contain the amount of ammo each weapon has)
Basically what I want the script to do is this:
if $ammo.value != weapon+weap_id:
$ammo.value = weapon+weap_id
Attempting this give the following error, though:
Invalid get index 'weapon' (on base: 'Node (global.gd)').
Is there a way to combine these two so I can pull the value without typing each one out? I can get it to spit out the name if contained in str(). But that doesn’t help pull the data either.
In this situation you should use an array. Arrays are lists of variables with a defined number of elements in them. Each element is associated a numeric index so you can access them using that index: GDScript basics — Godot Engine (3.1) documentation in English
So you can do something like:
var weapons = []
var weap_id = 0
func _ready():
# Give the array a size
_weapons.resize(11)
# Put 100 ammo in every weapon by iterating each element
# Note: the `len` function gives the total size of the array
for i in len(_weapons):
_weapons[i] = 100
func update_value():
if $ammo.value != weapons[weap_id]:
$ammo.value = weapons[weap_id]
However, there is also a way to specifically do what you said. IMO it’s a bad idea because it makes code harder to maintain in the long run, but you can get and set variables based on a procedural name using get and set:
