Making jump smooth instead of teleporting

[RednaXela]

Godot Version

Godot_v4.2.2-stable_win64.exe

Question

I’m making a flappy bird game and I don’t know how to make the character jump smoothly instead of teleportning up. I’m new to godot (And game development in general) so any help would be appreciated
Here is my code:

extends CharacterBody2D

var gravity = ProjectSettings.get_setting("physics/2d/default_gravity")
const JUMP = -10000.0
const GRAVITY_MULTIPLIER = 20.0

func _physics_process(delta):
	velocity.y = gravity * delta * GRAVITY_MULTIPLIER
	if Input.is_action_just_pressed("Jump"):
		velocity.y += JUMP
	move_and_slide()

[gabrielec0]

@RednaXela

velocity.y += JUMP

Adding the value to velocity is bad practice, just do velocity.y = JUMP

Other than that I dont see issues with the code so propably the JUMP value is just too high

[RednaXela]

I changed it to = instead of += but lowering the JUMP value only makes it teleport a shorter distance, but it’s still just teleporting

[gabrielec0]

How did you set it to? I’d make it -400

[RednaXela]

At -400 the sprite barely moves on the screen

[dharhix]

Why would you use a gravity multiplier of 20 though? That’s… A LOT.

[RednaXela]

I found the solution, it’s because I had to change the gravity velocity to += instead of =, that way it gradually accelerates downwards and it also fixed the jump so I can set it to a much lower value

This is the code that is working:

extends CharacterBody2D

var gravity = ProjectSettings.get_setting("physics/2d/default_gravity")
const JUMP = -800.0
const GRAVITY_MULTIPLIER = 1.5

func _physics_process(delta):
	velocity.y += gravity * delta * GRAVITY_MULTIPLIER
	if Input.is_action_just_pressed("Jump"):
		velocity.y = JUMP
	move_and_slide()

[dharhix]

A gravity modifier at 1.5 is a lot better.