Issues with semisolid platforms

[timber perch]

https://pastecode.io/s/gnqbi9xa

I noticed an issue with my semisolid platforms. Sometimes, my player can jump through, but sometimes it stops my player. It doesn't think it's a ceiling or a wall either. It thinks I'm grounded, and then I fall off.

[timber perch]

Fixed!

https://pastebin.com/3A0sZdUB

Changed a couple variables so that it won't declare the player to be grounded if the player's velocity isn't above 0, meaning it's midair