Gravity Calculation'Ruler'

Welcome and feel free to write.

As the title says, I'm searching a Gravity Calculation'Ruler' for the game ShellShock Live 2.

Why I use Ruler?

Because I know a tiny programm called 8-Ball Ruler for 8-Ball games.
I just wanted to ask if you can programm something wich would take the angle and the power and draw a full line across the map.

Wich means like:
Programm should take this information:
Angle 97°
Power 65

And draw a line how the shot will fly.
Just like the Ruler does it for 8-Ball.

I hope you understood what I mean and that you can avtually help me,
because I searched the Internet for 2 hrs now and I couldn't find anything.


Thanks in advance.

Sincerely, me.