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Attention | Topic was automatically imported from the old Question2Answer platform. |
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Asked By | Cellist1972 |
The following code is from an godot book. The code is supposed to steer a spaceship. If the ship goes off the screen boundaries, it is supposed to appear on the other side of the screen. However, if i run the code, the origin values don’t get set. Any clues, where the error is?
extends RigidBody2D
enum {INIT, ALIVE, INVULNERABLE, DEAD}
var state = null
export (int) var engine_power
export (int) var spin_power
var thrust = Vector2()
var rotation_dir = 0
var screensize = Vector2()
func _ready():
change_state(ALIVE)
screensize = get_viewport().get_visible_rect().size
func _process(delta):
get_input()
func _integrate_forces(physics_state):
set_applied_force(thrust.rotated(rotation))
set_applied_torque(spin_power * rotation_dir)
var xform = physics_state.get_transform()
if xform.origin.x > screensize.x:
xform.origin.x = 0
if xform.origin.x < 0:
xform.origin.x = screensize.x
if xform.origin.y > screensize.y:
xform.origin.y = 0
if xform.origin.y < 0:
xform.origin.y = screensize.y
func get_input():
thrust = Vector2()
if state in [DEAD, INIT]:
return
if Input.is_action_pressed("thrust"):
thrust = Vector2(engine_power, 0)
rotation_dir = 0
if Input.is_action_pressed("rotate_right"):
rotation_dir += 1
if Input.is_action_pressed("rotate_left"):
rotation_dir -= 1
func change_state(new_state):
match new_state:
INIT:
$CollisionShape2D.disabled = true
ALIVE:
$CollisionShape2D.disabled = false
INVULNERABLE:
$CollisionShape2D.disabled = true
DEAD:
$CollisionShape2D.disabled = true
state = new_state