arx/ArxLibertatis — comment on commit 6675bf55be4cda10996b064c7b632bcbf6ad44bb
File: src/core/GameTime.h line 146
By dscharrer:

Yes, this is still valid: depending on the use_pause for the last call to update(), delta_time is either the current time or the time when the game was paused. This is probably the reason why the time is "updated" all over the place.