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(game_reset_tick): New.

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(prod_nat): Use it.
This commit is contained in:
Markus Armbruster 2007-07-15 09:01:58 +00:00
parent d3e0597f0e
commit aa34ef2b7b
3 changed files with 28 additions and 11 deletions
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34
src/lib/common/game.c
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@ -34,10 +34,10 @@
/*
* On Empire Time:
*
* A turn is terminated by an update and consists of etu_per_update
* ETUs. The Empire clock counts turns and ETUs. When updates move
* around in real time (schedule change, downtime, etc.), the Empire
* clock automatically adapts the length of an ETU in seconds
* An Empire turn is terminated by an update. The Empire clock counts
* turns and ETUs, i.e. it ticks etu_per_update times per turn. When
* updates move around in real time (schedule change, downtime, etc.),
* the Empire clock automatically adapts the duration of an ETU
* accordingly.
*/
@ -127,11 +127,27 @@ game_tick_to_now(short *tick)
int
game_step_a_tick(struct gamestr *game, short *tick)
{
int d;
int etu;
d = game->game_tick - *tick;
if (CANT_HAPPEN(d < 0))
d = 0;
etu = game->game_tick - *tick;
if (CANT_HAPPEN(etu < 0))
etu = 0;
*tick = game->game_tick;
return d;
return etu;
}
/*
* Reset ETU timestamp *TICK to zero.
* Return how many ETUs it had left until etu_per_update.
*/
int
game_reset_tick(short *tick)
{
int etu;
etu = etu_per_update - *tick;
if (CANT_HAPPEN(etu < 0))
etu = 0;
*tick = 0;
return etu;
}