I'm having some issues with move_and_slide function in a platformer game. For some reason, if character is standing on floor and is running into a wall, there's some upward motion that seems to come out of nowhere and is being applied every other frame.
Here's how it looks (notice movement vector printed every frame in the console):
https://youtu.be/lga0l3amuS8
Here's the code for movement:
extends KinematicBody2D
const SPEED = 50
const GRAVITY = 250
const JUMP_FORCE = -130
const JUMP_CUT = -80
#var can_attack = true
var motion = Vector2()
var last_frame_motion = Vector2()
func _physics_process(delta):
update_motion(delta)
func _process(delta):
update_animation(motion)
func update_motion(delta):
last_frame_motion = motion
fall(delta)
run()
jump()
jump_cut()
motion = move_and_slide(motion, Vector2.UP)
print(motion)
func update_animation(motion):
$AnimatedSprite.update_anim(motion)
func fall(delta):
motion.y += GRAVITY * delta
motion.y = clamp(motion.y, -GRAVITY, +GRAVITY)
func jump():
if Input.is_action_just_pressed("ui_up") and is_on_floor():
motion.y = JUMP_FORCE
func jump_cut():
if Input.is_action_just_released("ui_up") and motion.y < JUMP_CUT :
motion.y = JUMP_CUT
func run():
if Input.is_action_pressed("ui_right") and not Input.is_action_pressed("ui_left"):
motion.x = lerp(motion.x, SPEED, 0.1)
elif Input.is_action_pressed("ui_left") and not Input.is_action_pressed("ui_right"):
motion.x = lerp(motion.x, -SPEED, 0.1)
else:
if last_frame_motion.y == 0:
motion.x = lerp(motion.x, 0, 0.12)
if motion.x > 0 and motion.x < 5:
motion.x = 0
elif motion.x < 0 and motion.x > -5:
motion.x = 0
else:
motion.x = lerp(motion.x, 0, 0.042)
I've even tried using move_and_slide_with_snap but had no success with it either.
Not sure what is the problem here