How do I make ARENA

Hello,

There is arena. Player has 8 Direction Movement. How I can restrict him to leave sand area? (I know, when Player leaves sund make speed =0, acceleration = 0, but how make him return his speed stats when he want go out from this "wall".

You could do something like this:

Create 2 variables:

PlayerLastX

PlayerLastY

Every Tick:

If PlayerSprite touches SandSprite Set PlayerLastX to Player.X and PlayerLastY to Player.Y

Every Tick:

If PlayerSprite is not touching Sand Sprite:

Set Player position to PlayerLastX & PlayerLastY so that it remains on the SandSprite and can still move where it came from.