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Location: cpp/openttd-patchpack/source/src/subsidy.cpp
r12637:f39ded7768d2
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(svn r17102) -Update from WebTranslator v3.0:
polish - 69 changes by Adam123
spanish - 1 changes by Terkhen
polish - 69 changes by Adam123
spanish - 1 changes by Terkhen
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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_base.h"
#include "table/strings.h"
/* static */ Subsidy Subsidy::array[MAX_COMPANIES];
/**
* Allocates one subsidy
* @return pointer to first invalid subsidy, NULL if there is none
*/
/* static */ Subsidy *Subsidy::AllocateItem()
{
for (Subsidy *s = Subsidy::array; s < endof(Subsidy::array); s++) {
if (!s->IsValid()) return s;
}
return NULL;
}
/**
* Resets the array of subsidies marking all invalid
*/
/* static */ void Subsidy::Clean()
{
memset(Subsidy::array, 0, sizeof(Subsidy::array));
for (Subsidy *s = Subsidy::array; s < endof(Subsidy::array); s++) {
s->cargo_type = CT_INVALID;
}
}
/**
* Initializes subsidies, files don't have to include subsidy_base,h this way
*/
void InitializeSubsidies()
{
Subsidy::Clean();
}
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 = CargoSpec::Get(s->cargo_type);
SetDParam(0, mode ? cs->name : cs->name_single);
if (!s->IsAwarded()) {
if (cs->town_effect != TE_PASSENGERS && cs->town_effect != TE_MAIL) {
SetDParam(1, STR_INDUSTRY_NAME);
SetDParam(2, s->from);
reftype1 = NR_INDUSTRY;
if (cs->town_effect != TE_GOODS && cs->town_effect != TE_FOOD) {
SetDParam(4, STR_INDUSTRY_NAME);
SetDParam(5, s->to);
reftype2 = NR_INDUSTRY;
} else {
SetDParam(4, STR_TOWN_NAME);
SetDParam(5, s->to);
reftype2 = NR_TOWN;
}
} else {
SetDParam(1, STR_TOWN_NAME);
SetDParam(2, s->from);
reftype1 = NR_TOWN;
SetDParam(4, STR_TOWN_NAME);
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_ALL_SUBSIDIES(s) {
if (!s->IsAwarded()) {
const CargoSpec *cs = CargoSpec::Get(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_ALL_SUBSIDIES(s) {
if (!s->IsAwarded()) {
const CargoSpec *cs = CargoSpec::Get(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)
{
bool dirty = false;
Subsidy *s;
FOR_ALL_SUBSIDIES(s) {
if (s->IsAwarded() && (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 = Town::GetRandom();
if (from == NULL || from->population < 400) return;
fr->to = to = Town::GetRandom();
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 = Industry::GetRandom();
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 = CargoSpec::Get(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 = Town::GetRandom();
/* 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 = Industry::GetRandom();
/* 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_ALL_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()
{
Station *st;
uint n;
FoundRoute fr;
bool modified = false;
Subsidy *s;
FOR_ALL_SUBSIDIES(s) {
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->Index()));
} 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->Index()));
} else {
s->age++;
}
}
/* 25% chance to go on */
if (Chance16(1, 4)) {
/* Find a free slot*/
s = Subsidy::AllocateItem();
if (s == NULL) 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 = CargoSpec::Get(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->Index()));
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, CompanyID company)
{
Subsidy *s;
TileIndex xy;
/* check if there is an already existing subsidy that applies to us */
FOR_ALL_SUBSIDIES(s) {
if (s->cargo_type == cargo_type &&
s->IsAwarded() &&
s->from == from->index &&
s->to == to->index) {
return true;
}
}
/* check if there's a new subsidy that applies.. */
FOR_ALL_SUBSIDIES(s) {
if (s->cargo_type == cargo_type && !s->IsAwarded()) {
/* Check distance from source */
const CargoSpec *cs = CargoSpec::Get(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, 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->Index()));
InvalidateWindow(WC_SUBSIDIES_LIST, 0);
return true;
}
}
return false;
}
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