Godot Car Script

#the car script

extends KinematicBody

var active = false

var y_velo = 0

var car_zone = false

func _physics_process(_delta):
    if active:
        $Camera.make_current()
        movement()
        leaving_car()
    elif !active:
        entering_car()
        pass

    pass

func movement():
    var move_speed = 20
    var jump_force = 35
    var rotate_speed = 2

    var gravity = 1.2
    var max_fall_speed = 20

    var move_vec = Vector3()
    if Input.is_key_pressed(KEY_W):
        move_vec.z -= 1
    if Input.is_key_pressed(KEY_S):
        move_vec.z += 1
    if Input.is_key_pressed(KEY_D):
        self.rotate_y(deg2rad(-rotate_speed))
    if Input.is_key_pressed(KEY_A):
        self.rotate_y(deg2rad(rotate_speed))

    move_vec = move_vec.normalized()
    move_vec = move_vec.rotated(Vector3(0, 1, 0), rotation.y)
    move_vec *= move_speed
    move_vec.y = y_velo
    move_and_slide(move_vec, Vector3(0, 1, 0))

    var grounded = is_on_floor()
    y_velo -= gravity
    if grounded and y_velo <= 0:
        y_velo = -0.1
    if y_velo < max_fall_speed:
        y_velo = -max_fall_speed

func entering_car():
    if Input.is_action_just_pressed("ui_e") && car_zone:
        var hidden_player = get_parent().get_node("player")
        hidden_player.active = false
        $Camera.make_current()
        active = true

func leaving_car():
    var vehicle = $"."
    var hidden_player = get_parent().get_node("player")
    var newLoc = vehicle.global_transform.origin - 2*vehicle.global_transform.basis.x

    if car_zone == false && Input.is_action_just_pressed("ui_e"):
        hidden_player.active = true
        active = false
        hidden_player.global_transform.origin = newLoc


func _on_player_detect_body_entered(body):
    if body.name == "player":
        car_zone = true

func _on_player_detect_body_exited(body):
    if body.name == "player":
        car_zone = false