TPG.Protection.SecondsSinceDamage

"Am I in a fight right now?" Used by the loadout re-kit (core/sv_commands.lua) to decide whether a respawn-to-change-kit is a legitimate one or an escape from a fight that's going badly. Answered by the clock below rather than by proximity or line of sight, because taking fire is the thing that actually matters and it costs one timestamp to know. Never having been hit reads as "not in combat", which is the right answer for a fresh spawn and for anyone the round hasn't touched yet. (stamped by the EntityTakeDamage hook below), or math.huge if they never have this life.