How to make platform game

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What Wick Editor Version are you using?
1.19.3

Describe the Problem
I don’t know this.

What have you tried so far?
I tried but failed.

I’ll need many people to help me with this because nobody really commented on my original post. I have Discord where we can chat if you want to help. If you don’t use Discord, tell me what you use and I’ll see if I can download or make an account on the program that you use for chatting and sending over files.

very biased opinion, but I think mine is more intuitive. you can essentially copy-paste blocks around.

basic wall collison
if(hitTest(wall)
{
this.x-=20
}