/** Perform the monthly update of open subsidies, and try to create a new one. */
void SubsidyMonthlyLoop()
{
bool modified = false;
Subsidy *s;
FOR_ALL_SUBSIDIES(s) {
if (--s->remaining == 0) {
if (!s->IsAwarded()) {
Pair reftype = SetupSubsidyDecodeParam(s, true);
AddNewsItem(STR_NEWS_OFFER_OF_SUBSIDY_EXPIRED, NT_SUBSIDIES, NF_NORMAL, (NewsReferenceType)reftype.a, s->src, (NewsReferenceType)reftype.b, s->dst);
AI::BroadcastNewEvent(new ScriptEventSubsidyOfferExpired(s->index));
Game::NewEvent(new ScriptEventSubsidyOfferExpired(s->index));
} else {
if (s->awarded == _local_company) {
Pair reftype = SetupSubsidyDecodeParam(s, true);
AddNewsItem(STR_NEWS_SUBSIDY_WITHDRAWN_SERVICE, NT_SUBSIDIES, NF_NORMAL, (NewsReferenceType)reftype.a, s->src, (NewsReferenceType)reftype.b, s->dst);
}
AI::BroadcastNewEvent(new ScriptEventSubsidyExpired(s->index));
Game::NewEvent(new ScriptEventSubsidyExpired(s->index));
}
delete s;
modified = true;
}
}
if (modified) RebuildSubsidisedSourceAndDestinationCache();
bool passenger_subsidy = false;
bool town_subsidy = false;
bool industry_subsidy = false;
int random_chance = RandomRange(16);
if (random_chance < 2) {
/* There is a 1/8 chance each month of generating a passenger subsidy. */
int n = 1000;
do {
passenger_subsidy = FindSubsidyPassengerRoute();
} while (!passenger_subsidy && n--);
} else if (random_chance == 2) {
/* Cargo subsidies with a town as a source have a 1/16 chance. */
int n = 1000;
do {
town_subsidy = FindSubsidyTownCargoRoute();
} while (!town_subsidy && n--);
} else if (random_chance == 3) {
/* Cargo subsidies with an industry as a source have a 1/16 chance. */
int n = 1000;
do {
industry_subsidy = FindSubsidyIndustryCargoRoute();
} while (!industry_subsidy && n--);
}
modified |= passenger_subsidy || town_subsidy || industry_subsidy;
if (modified) InvalidateWindowData(WC_SUBSIDIES_LIST, 0);
}
void SubsidyMonthlyLoop()
{
bool modified = false;
Subsidy *s;
FOR_ALL_SUBSIDIES(s) {
if (--s->remaining == 0) {
if (!s->IsAwarded()) {
Pair reftype = SetupSubsidyDecodeParam(s, 1);
AddNewsItem(STR_NEWS_OFFER_OF_SUBSIDY_EXPIRED, NS_SUBSIDIES, (NewsReferenceType)reftype.a, s->src, (NewsReferenceType)reftype.b, s->dst);
AI::BroadcastNewEvent(new AIEventSubsidyOfferExpired(s->index));
} else {
if (s->awarded == _local_company) {
Pair reftype = SetupSubsidyDecodeParam(s, 1);
AddNewsItem(STR_NEWS_SUBSIDY_WITHDRAWN_SERVICE, NS_SUBSIDIES, (NewsReferenceType)reftype.a, s->src, (NewsReferenceType)reftype.b, s->dst);
}
AI::BroadcastNewEvent(new AIEventSubsidyExpired(s->index));
}
delete s;
modified = true;
}
}
if (modified) RebuildSubsidisedSourceAndDestinationCache();
/* 25% chance to go on */
if (Subsidy::CanAllocateItem() && Chance16(1, 4)) {
uint n = 1000;
do {
Subsidy *s = FindSubsidyPassengerRoute();
if (s == NULL) s = FindSubsidyCargoRoute();
if (s != NULL) {
s->remaining = SUBSIDY_OFFER_MONTHS;
s->awarded = INVALID_COMPANY;
Pair reftype = SetupSubsidyDecodeParam(s, 0);
AddNewsItem(STR_NEWS_SERVICE_SUBSIDY_OFFERED, NS_SUBSIDIES, (NewsReferenceType)reftype.a, s->src, (NewsReferenceType)reftype.b, s->dst);
SetPartOfSubsidyFlag(s->src_type, s->src, POS_SRC);
SetPartOfSubsidyFlag(s->dst_type, s->dst, POS_DST);
AI::BroadcastNewEvent(new AIEventSubsidyOffer(s->index));
modified = true;
break;
}
} while (n--);
}
if (modified) InvalidateWindowData(WC_SUBSIDIES_LIST, 0);
}
