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budget: Fix treasury tracking

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The update simply updates each nation's nat_money as it goes.  Works.
Except it doesn't update when it runs on behalf of budget.  But it
still checks nat_money to determine whether the nation is solvent.
These checks are all broken.  Leads to massive mispredictions when
you'd go broke or solvent during a real update.

Track money unconditionally in nat_budget[].money.  Delay update of
nat_money until prod_nat().  Replace separate money[] by new
nat_budget[].start_money.  Closes bug#235.

Remaining difference between budget and update in the update test:

* #1: budget mispredicts plane #100 gets built (to be fixed)

* #2: budget shows ship, plane and land unit maintenance when broke,
      but update damages them instead (correct)

* #2: sector -14,0 converts, quadrupling its taxes (correct)

* #4 & #5: bank with dust and bars taken over by che (correct)

* #4: plague deaths (correct)

Signed-off-by: Markus Armbruster <armbru@pond.sub.org>
This commit is contained in:
Markus Armbruster 2016-06-19 11:32:36 +02:00
parent 058268595f
commit 10789a0365
14 changed files with 78 additions and 99 deletions
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4
include/update.h
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@ -64,11 +64,13 @@ struct budget {
struct budg_item bm[BUDG_BLD_MAX + 1];
/* population, taxes, military payroll, bank interest */
struct budg_item civ, mil, uw, bars;
/* treasury */
int start_money; /* at beginning of update */
int money; /* current */
};
/* main.c */
extern struct budget nat_budget[MAXNOC];
extern int money[MAXNOC];
extern int pops[MAXNOC];
extern int tpops[MAXNOC];
/* nat.c */