Gains and Losses
Pleasure and Pain:
The bots are capable of seeing how well or poorly they have been doing from cycle to cycle. The readbacks pain and pleas(pleasure) return the amount of Energy a bot has lost or gained during a cycle. Bodloss and bodgain work similarly but for Body instead of nrg.
These are flip sysvars, meaning when one is positive the other is negative.
These are mostly useful to tell if another bot is attacking your's. An unusually high pain level greater than 500 is a rapid way to tell your bot is being attacked by a tie feeder.