Timers
These parameters control how long the effects of certain power-ups and other timers last. They are measured in tics, of which 35 equal one second. Multiply the values with the constant TICRATE (35) to convert them to seconds.
UnderwaterTics sets how long the player can stay underwater before drowning. Note that this value includes the drowning countdown, not just the period before it. To retain the full countdown, this value should be at least 11.5 seconds. The default value is 30*TICRATE (30 seconds). Setting this value to 0 completely disables the drowning system, including the aquaphobia sound effect.
