How can I make grapple hook not affected by "gravity"

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:information_source: Attention Topic was automatically imported from the old Question2Answer platform.
:bust_in_silhouette: Asked By thoma

Hi ! I have use this tutorial on youtube to learn how to use it.here the link
but I want my player node to stay in air like this look at 0:25 of the video :Here what I want
Thank you for your help and sorry for my english.

player node : Kninematic body
gravity : is an autoload
the grapple node is basicly like the tutorial is a sprite 2D who extend and have a tip woh is a Kninematic body.
code for the player:

extends KinematicBody2D

var jump_speed = -500
var speed = 500
var velocity = Vector2.ZERO
var friction = 0.1
var acceleration = 0.5
const wall_max_acceleration = 5
const wall_max_speed = 0
var can_jump = true
var double_jump = 0
var max_double_jumps = 1
var slow_time = true
var chain_velocity = Vector2(0,0)
const CHAIN_PULL = 50

func _input(event: InputEvent) → void:
if event is InputEventMouseButton:
if event.pressed:

		# We clicked the mouse -> shoot()
		$chains.shoot(event.position - get_viewport().size * 0.5)
	else:
		# We released the mouse -> release()
		$chains.release()

func _physics_process(delta:float)->void:

#Input.set_mouse_mode(Input.MOUSE_MODE_HIDDEN)
get_input()
var walk = (Input.get_action_strength("d") - Input.get_action_strength("a")) * speed
#print(chain_velocity)
if $chains.hooked:
	
	# `to_local($Chain.tip).normalized()` is the direction that the chain is pulling
	chain_velocity = to_local($chains.tip).normalized() * CHAIN_PULL
	if chain_velocity.y > 0:
		# Pulling down isn't as strong
		chain_velocity.y *= 0.5
	else:
		# Pulling up is stronger
		chain_velocity.y *= 0.6
		#
	if sign(chain_velocity.x) != sign(walk):
		# if we are trying to walk in a different
		# direction than the chain is pulling
	#	# reduce its pull
		chain_velocity.x *= 0.4
	else:
	# Not hooked -> no chain velocity
		chain_velocity = Vector2.ZERO
	
	velocity += chain_velocity
	


velocity.y += Globals.gravity * delta

here code for grapple

2
:bust_in_silhouette: Reply From: magicalogic

I think you should be more specific.
Try adding information on how you are dong this like are you using a kinematic character or a rigid body etc

oh thank I did not notice that here all the info
player node : Kninematic body
gravity : is an autoload
the grapple node is basicly like the tutorial is a sprite 2D who extend and have a tip woh is a Kninematic body.

code for the player:

   extends KinematicBody2D

var jump_speed = -500
var speed = 500
var velocity = Vector2.ZERO
var friction = 0.1
var acceleration = 0.5
const wall_max_acceleration = 5
const wall_max_speed = 0
var can_jump = true
var double_jump = 0
var max_double_jumps = 1
var slow_time = true
var chain_velocity = Vector2(0,0)#useful for grapple
const CHAIN_PULL = 50#useful for graple

    func _input(event: InputEvent) -> void:
  if event is InputEventMouseButton:
	if event.pressed:
		
		# We clicked the mouse -> shoot()
		$chains.shoot(event.position - get_viewport().size * 0.5)
	else:
		# We released the mouse -> release()
		$chains.release()

func _physics_process(delta:float)->void:

#Input.set_mouse_mode(Input.MOUSE_MODE_HIDDEN)
get_input()
var walk = (Input.get_action_strength("d") - Input.get_action_strength("a")) * speed
#print(chain_velocity)
if $chains.hooked:
	
	# `to_local($Chain.tip).normalized()` is the direction that the chain is pulling
	chain_velocity = to_local($chains.tip).normalized() * CHAIN_PULL
	if chain_velocity.y > 0:
		# Pulling down isn't as strong
		chain_velocity.y *= 0.5
	else:
		# Pulling up is stronger
		chain_velocity.y *= 0.6
		#
	if sign(chain_velocity.x) != sign(walk):
		# if we are trying to walk in a different
		# direction than the chain is pulling
	#	# reduce its pull
		chain_velocity.x *= 0.4
	else:
	# Not hooked -> no chain velocity
		chain_velocity = Vector2.ZERO
	
	velocity += chain_velocity
	

velocity.y += Globals.gravity * delta

code for grapple

thoma | 2020-12-01 15:23