240326

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extends Sprite2D

var speed = 400
var angular_speed = PI

func _process(delta):
    rotation += angular_speed * delta
    # Vector2 2D向量
    var velocity = Vector2.UP.rotated(rotation) * speed
    position += velocity * delta

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extends Sprite2D

var speed = 400
var angular_speed = PI


func _process(delta):
    var direction = 0
    if Input.is_action_pressed("ui_left"):
        direction = -1
    if Input.is_action_pressed("ui_right"):
        direction = 1

    rotation += angular_speed * direction * delta

    var velocity = Vector2.ZERO
    if Input.is_action_pressed("ui_up"):
        velocity = Vector2.UP.rotated(rotation) * speed

    position += velocity * delta

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extends Sprite2D

var speed = 400
var angular_speed = PI


func _process(delta):
    rotation += angular_speed * delta
    var velocity = Vector2.UP.rotated(rotation) * speed
    position += velocity * delta

    # signal信号
func _on_button_pressed():
    set_process(not is_processing())