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Polaris/code/__defines/math.dm
Leshana c6e8184b58 Ports https://github.com/tgstation/tgstation/pull/30184
* Adds defines for world.tick_usage
* This provides no useful benefit whatsoever, but /tg and Baystation12 have done it, so it will make porting future code easier if we do too.  No real harm done either.
2017-12-27 19:10:15 -05:00

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//"fancy" math for calculating time in ms from tick_usage percentage and the length of ticks
//percent_of_tick_used * (ticklag * 100(to convert to ms)) / 100(percent ratio)
//collapsed to percent_of_tick_used * tick_lag
#define TICK_DELTA_TO_MS(percent_of_tick_used) ((percent_of_tick_used) * world.tick_lag)
#define TICK_USAGE_TO_MS(starting_tickusage) (TICK_DELTA_TO_MS(TICK_USAGE-starting_tickusage))
//time of day but automatically adjusts to the server going into the next day within the same round.
//for when you need a reliable time number that doesn't depend on byond time.
#define REALTIMEOFDAY (world.timeofday + (MIDNIGHT_ROLLOVER * MIDNIGHT_ROLLOVER_CHECK))
#define MIDNIGHT_ROLLOVER_CHECK ( rollovercheck_last_timeofday != world.timeofday ? update_midnight_rollover() : midnight_rollovers )