New dev. Please help

phantom270

Hi! I am new to godot and got some of the basics down such as movement. However in my game, I want to be able to allow the player to flip gravity for a short time using a key. Is there an easy way to do that? If so please help me as to where to put it.

Thank you!

cybereality

Hey and welcome to the forum!

Can you post a snippet of your movement code?

I should be able to help.

phantom270

Sure. Once I get home, I can show you

phantom270

ok. here is my entire script for the player's movement

extends KinematicBody2D
# controls movement
var motion = Vector2()

const GRAVITY = 20
const SPEED = 200
const JUMP  = -500
const UP = Vector2(0, -1)


func _physics_process(delta):
	motion.y += GRAVITY
	if Input.is_action_pressed("ui_right"):
		motion.x = SPEED
	elif Input.is_action_pressed("ui_left"):
			motion.x = -SPEED
	else:
			motion.x = 0
	if is_on_floor():
		if Input.is_action_just_pressed("ui_up"):
			motion.y = JUMP 
			
	motion = move_and_slide(motion, UP)
	pass

what can i do to this to allow the change in gravity?

cybereality

So first, make a variable to multiply by GRAVITY to flip it.

var gravity_change = 1.0

At the top of physics_process, change the gravity code to this:

motion.y += GRAVITY * gravity_change

Then make a new input map named "flip_gravity":

if Input.is_action_pressed("flip_gravity"):
        gravity_change = -1.0
else:
        gravity_change = 1.0

That should be it. Cheers.

phantom270

thank you so much!

phantom270

so last question. i inputed everything and it works great. however, i was hoping to make it only a single press and not holding it. is there anyway to do that? if not thats fine too.

cybereality

Yeah, you can try replacing the input check to this:

if Input.is_action_just_pressed("flip_gravity"):
        gravity_change *= -1.0

phantom270

thank you. works like a dream!

cybereality

Great news! Enjoy.