Explain me things

DaniTD

First What is "_ready()"? what is it used for? why is it used? how is it used? and where can i read more about it? are these other things like it that i should read about?

fire7side

It's just what it sounds. It's what you want to be done before the script starts. Maybe initialize some variables. Maybe start a function. Maybe load something. There's a scripting heading in the docs you might want to go through. https://docs.godotengine.org/en/3.0/getting_started/step_by_step/scripting.html

DaniTD

explain better please

DaniTD

i wish someone could teach me this stuff

Megalomaniak

ready() is a function run once when a node becomes 'ready' after it has been added to the scene tree.

DaniTD

how do i make a cube rotate?

cybereality

Ready is a function that happens once on the script in the beginning. You can use it to initialize the object with default settings or load things. To make stuff move, you use Process, which happens every frame. To rotate a cube, you would use a function like rotate_y() on the _process() function, which will rotate that node every frame. I've attached a project for you to test. Cheers and welcome to the forum.

DaniTD

so _process() is used for anything to run something every frame? also where can i read about it? also what is delta?

cybereality

It's honestly a lot to explain, I could write a whole book. So I would recommend that you read this. https://www.amazon.com/Godot-Engine-Game-Development-Projects-ebook/dp/B079HZD1S7/

DaniTD

bruh literally just "too hard to explain, read book"

fire7side

The best thing to do is type in beginners godot tutorials on youtube and go through some of them. That's what I think anyway. Also, read the godot docs when you don't understand something. There is a search function.
https://docs.godotengine.org/en/stable/index.html

cybereality

Well to answer your question, delta is a measurement of time between frames. The letter delta in mathematics is to denote a change, in this case the amount of seconds that have passed since the last frame. But I recommend you read the book, as these are fundamental concepts in game programming, and if you don't know them, then there are literally hundreds or thousands of things I will need to explain for you to be able to finish a game. I'm open to help, but the first thing you should do is read the book I recommended so we have a baseline that we can talk about. I hope that makes sense. And I am planning to write a book for Godot 4.0, but I want to wait until the API is finalized so I don't waste my time.

cybereality

@DaniTD said: also where can i read about it? You asked for something to read. I gave you something to read. Not sure where the issue lies.

cybereality

DaniTD

i'm really bad at programming stuff the best i can do is very basic shell script its hard for me to understand how things work and why the best i could find was the Godot API thing in the documentation but explanations could be better

duane

I don't know if this is what you want, but this is my all-time favorite game programming class:

https://www.youtube.com/playlist?list=PLhQjrBD2T383Vx9-4vJYFsJbvZ_D17Qzh

The class uses love2d (which is also easy to learn), but what you should pay attention to are the basic concepts of programming games, like "what is a game loop". The instructor does an excellent job of explaining things that every game requires.

You'd do much better listening to this professional than getting a short-hand explanation from me.

DaniTD

if delta uses the fps then if the game loses fps only the things using delta will slow down or the entire game will?

cybereality

The opposite will happen. Delta adjusts the game speed to match the FPS of the computer, meaning that slower or faster computers will look the same. It is explained in the video I posted.

DaniTD

ok here

extends Sprite

var speed = 200 

func _ready():
	position = Vector2(100, 100)
func _process(delta):
	position.x += speed * delta
	if position.x > 500:
		position.x = 0

it makes the sprite teleport to 0 i wanted to make it go back instead of teleporting but "position.x -= speed * delta" didn't work

Erich_L

I just want to say that every time I see the title "Explain me things" when refreshing recent discussions I get a big grin on my face. @DaniTD, I adore you. May "explain better please" become a common catchphrase.