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(svn r12092) -Fix(r11532)[FS#1755]: Make sure the production level will not get out of delimited boundaries, while using var result 0D/0E and than multiplying/dividing it.

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And use multiply/divide operations instead of shifting.  It does the same, just adds a bit more readability
This commit is contained in:
belugas 2008-02-09 03:12:05 +00:00
parent a782ab3903
commit cebb86777a
1 changed files with 4 additions and 4 deletions
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8
src/industry_cmd.cpp
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@ -2137,7 +2137,7 @@ static void ChangeIndustryProduction(Industry *i, bool monthly)
/* Increase if needed */
while (mul-- != 0 && i->prod_level < PRODLEVEL_MAXIMUM) {
i->prod_level <<= 1;
i->prod_level = min(i->prod_level * 2, PRODLEVEL_MAXIMUM);
i->production_rate[0] = min(i->production_rate[0] * 2, 0xFF);
i->production_rate[1] = min(i->production_rate[1] * 2, 0xFF);
if (str == STR_NULL) str = indspec->production_up_text;
@ -2148,9 +2148,9 @@ static void ChangeIndustryProduction(Industry *i, bool monthly)
if (i->prod_level == PRODLEVEL_MINIMUM) {
closeit = true;
} else {
i->prod_level >>= 1;
i->production_rate[0] = (i->production_rate[0] + 1) >> 1;
i->production_rate[1] = (i->production_rate[1] + 1) >> 1;
i->prod_level = max(i->prod_level / 2, (int)PRODLEVEL_MINIMUM); // typecast to int required to please MSVC
i->production_rate[0] = (i->production_rate[0] + 1) / 2;
i->production_rate[1] = (i->production_rate[1] + 1) / 2;
if (str == STR_NULL) str = indspec->production_down_text;
}
}