Wet V Speeds
Once upon a time, in a majical land far away, you were screwed when taking off on a wet runway. Fortunately, today, there is some help.
I suggest you consult the Airbus Series "Getting to Grips..." They have an excellent treatise on performance. It's concise and complete...as well as the French are able to communicate. This will eliminate the nonsense that some of the replies are providing.
Regards,
PantLoad