After I crashed a bunch of drones, I felt like I had to do something, then I made this.Its performance appears good,so I published it.

1. Auto Rotation Prevention

(At all times)
Make it not spin like a gyroscope.

easy mode:

(Press AG1)

1. Auto vertical velocity Stabilize

Note: 'Vertical' here means the craft's velocity on its yaw axis,not on gravity)
(NOT HEIGHT! It will still crash into the ground)

2. Auto point at velocity

(It feels like there is something like tail fins)

3. Brake like a car!

(Brake)
Automatically stop in the air, stationary to the ground.

(Want to try a quadcopter without flight control? Uninstall the program and try it, You the warrior!)