F = 0
Толчок = 0
Press space:
Accelerate 30
Толчок=15000
F=0+2
Accelerate 30-2+2 = 30
Толчок = 14000
F=2+2
Accelerate 30-2+4 = 32
Толчок=13000
etc..
F=28+2
Accelerate 30-2+30 = 58
Толчок=0
Press space again:
Accelerate 30
Толчок = 15000
F=30+2
Accelerate 30-2+32 = 60
Толчок = 14000
F=32+2
Accelerate 30-2+34 = 62
Толчок = 13000
etc...
F=58+2
Accelerate 30-2+60 = 88
Толчок = 0
It's doing what you're telling it to do, increasing the speed.