@cvp I read through the 3000+ lines this morning. Very impressive work! Lots of cool things that you have learned here.

There are three instances of for i in range(len(items)):that could all be made simpler with for i, item in enumerate(items):

Bon week-end.

What is your device? What were your issues?

update_lasers() can be simplified...

    def update_lasers(self):
        for laser in self.lasers:
            laser.direction = Vector2(-math.sin(laser.rotation), math.cos(laser.rotation))*10
            laser.position += laser.direction
            if laser.position not in self.bounds:  # laser has gone off the screen
                laser.remove_from_parent()
                self.lasers.remove(laser)

So, (as is often the case...) I was wrong about how to do the wrap around when the player gets to the edge of the screen.

self.Player.position.x %= width
self.Player.position.y %= height

# must be changed to...

self.Player.position = (self.Player.position.x % self.size.w, self.Player.position.y % self.size.h)

This is because position is a scene.Point which is scene.Vector2 which behaves more like a tuple than a list.

Also, you can safely delete all lines containing self.Player.location.

Can we please get the code full listing? Please use the </> icon above the post edit box to paste your code so it is formatted for this forum.
```
Insert Code Here
```

https://forum.omz-software.com/topic/7125/pythonista-tutorials/5

https://forum.omz-software.com/topic/6751/pymongo-errors-configurationerror-resolver-configuration-could-not-be-read-or-specified-no-nameservers

@BurntRice said:

            if self.Player.position.x <= 0 or self.Player.position.x >= 1112:
                self.Player.position.x %= width
            if self.Player.position.y <= 0 or self.Player.position.y >= 834:
                self.Player.position.y %= height

@JonB said:

You actually don't need the if statements

            self.Player.position.x %= width
            self.Player.position.y %= height

player.location.x %= screen.width
player.location.y %= screen.height

https://forum.omz-software.com/topic/6147/equally-spaced-circle-in-ui
points to https://github.com/mikaelho/caves vector.py