I need a help

[whole osprey]

Gravity is an acceleration, not a speed (this is true in real life too, haha)

when you set gravity to 0, it means you've stopped accelerating, your speed stops increasing, but it doesn't set your speed to 0

additionally, your check to see if you hit the ground happens too late, only when y + 1 sees ground

so if you're moving faster than 1 pixel per frame you'll sink into the ground before this code runs

so, this will never be pixel perfect without loops or without the built in speed system, but we can get kinda close by changing line 14 to check at y + vspeed, and by adding a vspeed = 0; line right after gravity = 0;