Godot Fox Player Platformer

# Atelier secondaire
# Kidscancode.org KinematicBody2D

extends KinematicBody2D

export (int) var run_speed
export (int) var jump_speed
export (int) var gravity

enum {IDLE, RUN, JUMP}
var velocity = Vector2()
var state
var anim
var new_anim

func _ready():
    change_state(IDLE)

func change_state(new_state):
    state = new_state
    match state:
        IDLE:
            new_anim = 'idle'
        RUN:
            new_anim = 'run'
        JUMP:
            new_anim = 'jump_up'

func get_input():
    velocity.x = 0
    var right = Input.is_action_pressed('ui_right')
    var left = Input.is_action_pressed('ui_left')
    var jump = Input.is_action_just_pressed('ui_select')

    if jump and is_on_floor():
        change_state(JUMP)
        velocity.y = jump_speed
    if right:
        change_state(RUN)
        velocity.x += run_speed
    if left:
        change_state(RUN)
        velocity.x -= run_speed
    $Sprite.flip_h = velocity.x < 0
    if !right and !left and state == RUN:
        change_state(IDLE)

func _process(_delta):
    get_input()
    if new_anim != anim:
        anim = new_anim
        $AnimationPlayer.play(anim)

func _physics_process(delta):
    velocity.y += gravity * delta
    if state == JUMP:
        if is_on_floor():
            change_state(IDLE)
    velocity = move_and_slide(velocity, Vector2(0, -1))
    #move_and_slide(velocity, Vector2(0, -1))

    if position.y > 600:
        var _x = get_tree().reload_current_scene()