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Location: cpp/openttd-patchpack/source/src/subsidy.cpp - annotation
r12162:c4894f5339c3
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(svn r16583) -Update: the order of the language files so it's in sync with english.txt. Normally WT2 would do this, but only with activity for those languages. Now we'd like to the order to match so we can more easily spot import bugs while developing WT3.
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/** @file subsidy.cpp Handling of subsidies. */
#include "stdafx.h"
#include "company_func.h"
#include "industry.h"
#include "map_func.h"
#include "town.h"
#include "news_func.h"
#include "ai/ai.hpp"
#include "station_base.h"
#include "cargotype.h"
#include "strings_func.h"
#include "window_func.h"
#include "subsidy_type.h"
#include "table/strings.h"
Subsidy _subsidies[MAX_COMPANIES];
Pair SetupSubsidyDecodeParam(const Subsidy *s, bool mode)
{
NewsReferenceType reftype1 = NR_NONE;
NewsReferenceType reftype2 = NR_NONE;
/* if mode is false, use the singular form */
const CargoSpec *cs = GetCargo(s->cargo_type);
SetDParam(0, mode ? cs->name : cs->name_single);
if (s->age < 12) {
if (cs->town_effect != TE_PASSENGERS && cs->town_effect != TE_MAIL) {
SetDParam(1, STR_INDUSTRY);
SetDParam(2, s->from);
reftype1 = NR_INDUSTRY;
if (cs->town_effect != TE_GOODS && cs->town_effect != TE_FOOD) {
SetDParam(4, STR_INDUSTRY);
SetDParam(5, s->to);
reftype2 = NR_INDUSTRY;
} else {
SetDParam(4, STR_TOWN);
SetDParam(5, s->to);
reftype2 = NR_TOWN;
}
} else {
SetDParam(1, STR_TOWN);
SetDParam(2, s->from);
reftype1 = NR_TOWN;
SetDParam(4, STR_TOWN);
SetDParam(5, s->to);
reftype2 = NR_TOWN;
}
} else {
SetDParam(1, s->from);
reftype1 = NR_STATION;
SetDParam(2, s->to);
reftype2 = NR_STATION;
}
Pair p;
p.a = reftype1;
p.b = reftype2;
return p;
}
void DeleteSubsidyWithTown(TownID index)
{
Subsidy *s;
for (s = _subsidies; s != endof(_subsidies); s++) {
if (s->cargo_type != CT_INVALID && s->age < 12) {
const CargoSpec *cs = GetCargo(s->cargo_type);
if (((cs->town_effect == TE_PASSENGERS || cs->town_effect == TE_MAIL) && (index == s->from || index == s->to)) ||
((cs->town_effect == TE_GOODS || cs->town_effect == TE_FOOD) && index == s->to)) {
s->cargo_type = CT_INVALID;
}
}
}
}
void DeleteSubsidyWithIndustry(IndustryID index)
{
Subsidy *s;
for (s = _subsidies; s != endof(_subsidies); s++) {
if (s->cargo_type != CT_INVALID && s->age < 12) {
const CargoSpec *cs = GetCargo(s->cargo_type);
if (cs->town_effect != TE_PASSENGERS && cs->town_effect != TE_MAIL &&
(index == s->from || (cs->town_effect != TE_GOODS && cs->town_effect != TE_FOOD && index == s->to))) {
s->cargo_type = CT_INVALID;
}
}
}
}
void DeleteSubsidyWithStation(StationID index)
{
Subsidy *s;
bool dirty = false;
for (s = _subsidies; s != endof(_subsidies); s++) {
if (s->cargo_type != CT_INVALID && s->age >= 12 &&
(s->from == index || s->to == index)) {
s->cargo_type = CT_INVALID;
dirty = true;
}
}
if (dirty)
InvalidateWindow(WC_SUBSIDIES_LIST, 0);
}
struct FoundRoute {
uint distance;
CargoID cargo;
void *from;
void *to;
};
static void FindSubsidyPassengerRoute(FoundRoute *fr)
{
Town *from, *to;
fr->distance = UINT_MAX;
fr->from = from = GetRandomTown();
if (from == NULL || from->population < 400) return;
fr->to = to = GetRandomTown();
if (from == to || to == NULL || to->population < 400 || to->pct_pass_transported > 42)
return;
fr->distance = DistanceManhattan(from->xy, to->xy);
}
static void FindSubsidyCargoRoute(FoundRoute *fr)
{
Industry *i;
int trans, total;
CargoID cargo;
fr->distance = UINT_MAX;
fr->from = i = GetRandomIndustry();
if (i == NULL) return;
/* Randomize cargo type */
if (HasBit(Random(), 0) && i->produced_cargo[1] != CT_INVALID) {
cargo = i->produced_cargo[1];
trans = i->last_month_pct_transported[1];
total = i->last_month_production[1];
} else {
cargo = i->produced_cargo[0];
trans = i->last_month_pct_transported[0];
total = i->last_month_production[0];
}
/* Quit if no production in this industry
* or if the cargo type is passengers
* or if the pct transported is already large enough */
if (total == 0 || trans > 42 || cargo == CT_INVALID) return;
const CargoSpec *cs = GetCargo(cargo);
if (cs->town_effect == TE_PASSENGERS) return;
fr->cargo = cargo;
if (cs->town_effect == TE_GOODS || cs->town_effect == TE_FOOD) {
/* The destination is a town */
Town *t = GetRandomTown();
/* Only want big towns */
if (t == NULL || t->population < 900) return;
fr->distance = DistanceManhattan(i->xy, t->xy);
fr->to = t;
} else {
/* The destination is an industry */
Industry *i2 = GetRandomIndustry();
/* The industry must accept the cargo */
if (i2 == NULL || i == i2 ||
(cargo != i2->accepts_cargo[0] &&
cargo != i2->accepts_cargo[1] &&
cargo != i2->accepts_cargo[2])) {
return;
}
fr->distance = DistanceManhattan(i->xy, i2->xy);
fr->to = i2;
}
}
static bool CheckSubsidyDuplicate(Subsidy *s)
{
const Subsidy *ss;
for (ss = _subsidies; ss != endof(_subsidies); ss++) {
if (s != ss &&
ss->from == s->from &&
ss->to == s->to &&
ss->cargo_type == s->cargo_type) {
s->cargo_type = CT_INVALID;
return true;
}
}
return false;
}
void SubsidyMonthlyLoop()
{
Subsidy *s;
Station *st;
uint n;
FoundRoute fr;
bool modified = false;
for (s = _subsidies; s != endof(_subsidies); s++) {
if (s->cargo_type == CT_INVALID) continue;
if (s->age == 12 - 1) {
Pair reftype = SetupSubsidyDecodeParam(s, 1);
AddNewsItem(STR_NEWS_OFFER_OF_SUBSIDY_EXPIRED, NS_SUBSIDIES, (NewsReferenceType)reftype.a, s->from, (NewsReferenceType)reftype.b, s->to);
s->cargo_type = CT_INVALID;
modified = true;
AI::BroadcastNewEvent(new AIEventSubsidyOfferExpired(s - _subsidies));
} else if (s->age == 2 * 12 - 1) {
st = Station::Get(s->to);
if (st->owner == _local_company) {
Pair reftype = SetupSubsidyDecodeParam(s, 1);
AddNewsItem(STR_NEWS_SUBSIDY_WITHDRAWN_SERVICE, NS_SUBSIDIES, (NewsReferenceType)reftype.a, s->from, (NewsReferenceType)reftype.b, s->to);
}
s->cargo_type = CT_INVALID;
modified = true;
AI::BroadcastNewEvent(new AIEventSubsidyExpired(s - _subsidies));
} else {
s->age++;
}
}
/* 25% chance to go on */
if (Chance16(1, 4)) {
/* Find a free slot*/
s = _subsidies;
while (s->cargo_type != CT_INVALID) {
if (++s == endof(_subsidies))
goto no_add;
}
n = 1000;
do {
FindSubsidyPassengerRoute(&fr);
if (fr.distance <= 70) {
s->cargo_type = CT_PASSENGERS;
s->from = ((Town*)fr.from)->index;
s->to = ((Town*)fr.to)->index;
goto add_subsidy;
}
FindSubsidyCargoRoute(&fr);
if (fr.distance <= 70) {
s->cargo_type = fr.cargo;
s->from = ((Industry*)fr.from)->index;
{
const CargoSpec *cs = GetCargo(fr.cargo);
s->to = (cs->town_effect == TE_GOODS || cs->town_effect == TE_FOOD) ? ((Town*)fr.to)->index : ((Industry*)fr.to)->index;
}
add_subsidy:
if (!CheckSubsidyDuplicate(s)) {
s->age = 0;
Pair reftype = SetupSubsidyDecodeParam(s, 0);
AddNewsItem(STR_NEWS_SERVICE_SUBSIDY_OFFERED, NS_SUBSIDIES, (NewsReferenceType)reftype.a, s->from, (NewsReferenceType)reftype.b, s->to);
AI::BroadcastNewEvent(new AIEventSubsidyOffer(s - _subsidies));
modified = true;
break;
}
}
} while (n--);
}
no_add:;
if (modified)
InvalidateWindow(WC_SUBSIDIES_LIST, 0);
}
bool CheckSubsidised(const Station *from, const Station *to, CargoID cargo_type)
{
Subsidy *s;
TileIndex xy;
/* check if there is an already existing subsidy that applies to us */
for (s = _subsidies; s != endof(_subsidies); s++) {
if (s->cargo_type == cargo_type &&
s->age >= 12 &&
s->from == from->index &&
s->to == to->index) {
return true;
}
}
/* check if there's a new subsidy that applies.. */
for (s = _subsidies; s != endof(_subsidies); s++) {
if (s->cargo_type == cargo_type && s->age < 12) {
/* Check distance from source */
const CargoSpec *cs = GetCargo(cargo_type);
if (cs->town_effect == TE_PASSENGERS || cs->town_effect == TE_MAIL) {
xy = Town::Get(s->from)->xy;
} else {
xy = Industry::Get(s->from)->xy;
}
if (DistanceMax(xy, from->xy) > 9) continue;
/* Check distance from dest */
switch (cs->town_effect) {
case TE_PASSENGERS:
case TE_MAIL:
case TE_GOODS:
case TE_FOOD:
xy = Town::Get(s->to)->xy;
break;
default:
xy = Industry::Get(s->to)->xy;
break;
}
if (DistanceMax(xy, to->xy) > 9) continue;
/* Found a subsidy, change the values to indicate that it's in use */
s->age = 12;
s->from = from->index;
s->to = to->index;
/* Add a news item */
Pair reftype = SetupSubsidyDecodeParam(s, 0);
InjectDParam(1);
char *company_name = MallocT<char>(MAX_LENGTH_COMPANY_NAME_BYTES);
SetDParam(0, _current_company);
GetString(company_name, STR_COMPANY_NAME, company_name + MAX_LENGTH_COMPANY_NAME_BYTES - 1);
SetDParamStr(0, company_name);
AddNewsItem(
STR_NEWS_SERVICE_SUBSIDY_AWARDED_HALF + _settings_game.difficulty.subsidy_multiplier,
NS_SUBSIDIES,
(NewsReferenceType)reftype.a, s->from, (NewsReferenceType)reftype.b, s->to,
company_name
);
AI::BroadcastNewEvent(new AIEventSubsidyAwarded(s - _subsidies));
InvalidateWindow(WC_SUBSIDIES_LIST, 0);
return true;
}
}
return false;
}
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