Pig-Drone with hover-follow-me function v01.03

Hi there,
just learned some Lua-scripting in the last few weeks.
The work is not finished. Still want to make some more improvements add the fameous ¨make loops¨.
The reason I upload this now is to be able to work on it on my tablet.
This is a drone that has some functions:
F = start the drone
G = go to free flight
H = hover on 2 meters altitude on the last position you flew
J = follow the robot :-)

P.S.: if you want to study and edit this for yourself: go to ´level-properties´ and set the ´bottom-border´ to 10.