Screen wrap

Problem

You want to allow the player to “wrap around” the screen, teleporting from one side of the screen to the other. This is a common feature, especially in old-school 2D games (think Pac-man).

Solution

Get your screen (viewport) size
```
onready var screen_size = get_viewport_rect().size
```
get_viewport_rect() is available to any CanvasItem derived node.

Compare your player’s position

if position.x > screen_size.x:
    position.x = 0
if position.x < 0:
    position.x = screen_size.x
if position.y > screen_size.y:
    position.y = 0
if position.y < 0:
    position.y = screen_size.y

Note that this is using the node’s position, which is usually the center of your sprite and/or body.

Simplifying with wrapf()
The above code can be simplified using GDScript’s wrapf() function, which “loops” a value between the given limits.
```
position.x = wrapf(position.x, 0, screen_size.x)
position.y = wrapf(position.y, 0, screen_size.y)
```