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@@ -1694,6 +1694,24 @@ void GenerateIndustries()
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}
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}
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/**
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* Protects an industry from closure if the appropriate flags and conditions are met
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* INDUSTRYBEH_CANCLOSE_LASTINSTANCE must be set (which, by default, it is not) and the
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* count of industries of this type must one (or lower) in order to be protected
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* against closure.
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* @param type IndustryType been queried
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* @result true if protection is on, false otherwise (except for oil wells)
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*/
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static bool CheckIndustryCloseDownProtection(IndustryType type)
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{
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const IndustrySpec *indspec = GetIndustrySpec(type);
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/* oil wells (or the industries with that flag set) are always allowed to closedown */
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if (indspec->behaviour & INDUSTRYBEH_DONT_INCR_PROD && _opt.landscape == LT_TEMPERATE) return false;
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return (indspec->behaviour & INDUSTRYBEH_CANCLOSE_LASTINSTANCE && GetIndustryTypeCount(type) <= 1);
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}
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/** Change industry production or do closure
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* @param i Industry for which changes are performed
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*/
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@@ -1752,7 +1770,7 @@ static void ExtChangeIndustryProduction(
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}
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/* If industry will be closed down, show this */
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if (closeit) {
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if (closeit && !CheckIndustryCloseDownProtection(i->type)) {
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i->prod_level = 0;
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SetDParam(0, i->index);
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AddNewsItem(
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@@ -1895,8 +1913,12 @@ static void ChangeIndustryProduction(Ind
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} else {
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/* Decrease production */
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if (i->prod_level == 4) {
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i->prod_level = 0;
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str = indspec->closure_text;
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/* Really set the production to 0 when the industrytype allows it,
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* since it is equivalent to closing it. */
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if (!CheckIndustryCloseDownProtection(i->type)) {
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i->prod_level = 0;
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str = indspec->closure_text;
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}
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} else {
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i->prod_level >>= 1;
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i->production_rate[0] = (i->production_rate[0] + 1) >> 1;
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@@ -1909,7 +1931,7 @@ static void ChangeIndustryProduction(Ind
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}
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if (indspec->life_type & INDUSTRYLIFE_PROCESSING) {
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/* maybe close */
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if ( (byte)(_cur_year - i->last_prod_year) >= 5 && CHANCE16(1, 2)) {
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if ( (byte)(_cur_year - i->last_prod_year) >= 5 && CHANCE16(1, 2) && !CheckIndustryCloseDownProtection(i->type)) {
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i->prod_level = 0;
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str = indspec->closure_text;
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}
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