I'm making a 2D Backrooms game, and need a collision engine between the player and the walls. I was hoping some other more experienced Scratchers' could teach me some tricks on this.

I can… So, my question was, could you explain a bit more on-
Your game
How it works
It would be great if you could just share it once and comment the link on my profile so I can check it out and reply tight here on how you can improve.

alright, I'll get it ready

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The simplest form of collision handling is probably just to move only when there is available space. You can move the player, check if it is touching a wall, and if it is, move it back.

e.g.

if <key [right arrow v] pressed?> then
change x by (5)
if <touching [wall v] ?> then
change x by (-5)
end
end