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Asked By
AlvaroAV
Old Version
Published before Godot 3 was released.
Hello,
I’m creating a game and my player.gd script has a lot of functions to manage a lot of things.
I have some functions and parts of the code I would like to externalize, I’m used with python import/export but here with Godot I don’t know if I can do this.
Is there a way to have a file like utils.gd where I have some generic functions and import them in my player.gd script ?
I thought about create a parent class playerParent.gd that extends from KinematicBody2D and then make my player.gd extends for the playerParent.gd but this wouldn’t be enough.
What relation does your player have to the part of the code you want to externalize? It it a “has a” or an “is a”?
For example, if you have code that gives your player a health bar, you might say that it “is a” ‘health object’. In that case, you would want to have something like your playerParent.gd example - or rather healthObject.gd. That way you could also derive enemies from that class, and they would have health bars, too.
If instead the relationship is a “has a” - like the player “has a” weapon, they maybe you want to do something like eons suggested - load the script/class as an object. This way you could, say, give the player multiple weapons by instancing the weapon object multiple times. Also do this if the code is just a bunch of utility functions, with no persistent variables/internal state.
I hope this explanation doesn’t complicate things unnecessarily (this is the way it was explained to me)
Could you elaborate when you say, load the script/class as an object?
mawesome4ever | 2021-05-28 22:50
See the documentation eons linked in the other answer for elaboration.
static func _sum_weights(choices) -> float:
var sum := 0.0
for key in choices:
var weight = choices[key]
sum += weight
return sum
# Usage:
# weighted_choice({'epic': 1, 'rare': 3, 'common': 6})
static func weighted_choice(choices):
var sum := _sum_weights(choices)
var threshold := decimal(0, sum)
for key in choices:
var weight = choices[key]
threshold -= weight
if threshold <= 0:
return key
push_error("weighted_choice failed to return a value.")
return null
I want to use the code in other modules:
const Random = preload("res://code/util/random.gd")
var rarity
func _ready():
rarity = Random.weighted_choice({'epic': 1, 'rare': 3, 'common': 6})
Or if you use class_name in random.gd, then you don’t need the preload statement when using it elsewhere.
