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OpenTTD-patches/economy.c

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/* $Id$ */
#include "stdafx.h"
#include "openttd.h"
#include "currency.h"
#include "functions.h"
#include "strings.h" // XXX InjectDParam()
#include "table/strings.h"
#include "table/sprites.h"
#include "map.h"
#include "news.h"
#include "player.h"
#include "station.h"
#include "vehicle.h"
#include "window.h"
#include "gfx.h"
#include "command.h"
#include "saveload.h"
#include "economy.h"
#include "industry.h"
#include "town.h"
#include "network.h"
#include "sound.h"
#include "engine.h"
#include "network_data.h"
#include "variables.h"
#include "vehicle_gui.h"
#include "ai/ai.h"
#include "train.h"
#include "newgrf_engine.h"
#include "newgrf_sound.h"
#include "newgrf_callbacks.h"
#include "unmovable.h"
#include "date.h"
// Score info
const ScoreInfo _score_info[] = {
{ SCORE_VEHICLES, 120, 100 },
{ SCORE_STATIONS, 80, 100 },
{ SCORE_MIN_PROFIT, 10000, 100 },
{ SCORE_MIN_INCOME, 50000, 50 },
{ SCORE_MAX_INCOME, 100000, 100 },
{ SCORE_DELIVERED, 40000, 400 },
{ SCORE_CARGO, 8, 50 },
{ SCORE_MONEY, 10000000, 50 },
{ SCORE_LOAN, 250000, 50 },
{ SCORE_TOTAL, 0, 0 }
};
int _score_part[MAX_PLAYERS][NUM_SCORE];
int64 CalculateCompanyValue(const Player* p)
{
PlayerID owner = p->index;
int64 value;
{
Station *st;
uint num = 0;
FOR_ALL_STATIONS(st) {
if (st->owner == owner) {
uint facil = st->facilities;
do num += (facil&1); while (facil >>= 1);
}
}
value = num * _price.station_value * 25;
}
{
Vehicle *v;
FOR_ALL_VEHICLES(v) {
if (v->owner != owner) continue;
if (v->type == VEH_Train ||
v->type == VEH_Road ||
(v->type == VEH_Aircraft && v->subtype<=2) ||
v->type == VEH_Ship) {
value += v->value * 3 >> 1;
}
}
}
value += p->money64 - p->current_loan; // add real money value
return max64(value, 1);
}
// if update is set to true, the economy is updated with this score
// (also the house is updated, should only be true in the on-tick event)
int UpdateCompanyRatingAndValue(Player *p, bool update)
{
byte owner = p->index;
int score = 0;
memset(_score_part[owner], 0, sizeof(_score_part[owner]));
/* Count vehicles */
{
Vehicle *v;
int32 min_profit = 0;
bool min_profit_first = true;
uint num = 0;
FOR_ALL_VEHICLES(v) {
if (v->owner != owner) continue;
if ((v->type == VEH_Train && IsFrontEngine(v)) ||
v->type == VEH_Road ||
(v->type == VEH_Aircraft && v->subtype <= 2) ||
v->type == VEH_Ship) {
num++;
if (v->age > 730) {
/* Find the vehicle with the lowest amount of profit */
if (min_profit_first == true) {
min_profit = v->profit_last_year;
min_profit_first = false;
} else if (min_profit > v->profit_last_year) {
min_profit = v->profit_last_year;
}
}
}
}
_score_part[owner][SCORE_VEHICLES] = num;
/* Don't allow negative min_profit to show */
if (min_profit > 0)
_score_part[owner][SCORE_MIN_PROFIT] = min_profit;
}
/* Count stations */
{
uint num = 0;
const Station* st;
FOR_ALL_STATIONS(st) {
if (st->owner == owner) {
int facil = st->facilities;
do num += facil&1; while (facil>>=1);
}
}
_score_part[owner][SCORE_STATIONS] = num;
}
/* Generate statistics depending on recent income statistics */
{
const PlayerEconomyEntry* pee;
int numec;
int32 min_income;
int32 max_income;
numec = min(p->num_valid_stat_ent, 12);
if (numec != 0) {
min_income = 0x7FFFFFFF;
max_income = 0;
pee = p->old_economy;
do {
min_income = min(min_income, pee->income + pee->expenses);
max_income = max(max_income, pee->income + pee->expenses);
} while (++pee,--numec);
if (min_income > 0)
_score_part[owner][SCORE_MIN_INCOME] = min_income;
_score_part[owner][SCORE_MAX_INCOME] = max_income;
}
}
/* Generate score depending on amount of transported cargo */
{
const PlayerEconomyEntry* pee;
int numec;
uint32 total_delivered;
numec = min(p->num_valid_stat_ent, 4);
if (numec != 0) {
pee = p->old_economy;
total_delivered = 0;
do {
total_delivered += pee->delivered_cargo;
} while (++pee,--numec);
_score_part[owner][SCORE_DELIVERED] = total_delivered;
}
}
/* Generate score for variety of cargo */
{
uint cargo = p->cargo_types;
uint num = 0;
do num += cargo&1; while (cargo>>=1);
_score_part[owner][SCORE_CARGO] = num;
if (update) p->cargo_types = 0;
}
/* Generate score for player money */
{
int32 money = p->player_money;
if (money > 0) {
_score_part[owner][SCORE_MONEY] = money;
}
}
/* Generate score for loan */
{
_score_part[owner][SCORE_LOAN] = _score_info[SCORE_LOAN].needed - p->current_loan;
}
// Now we calculate the score for each item..
{
int i;
int total_score = 0;
int s;
score = 0;
for (i = 0; i < NUM_SCORE; i++) {
// Skip the total
if (i == SCORE_TOTAL) continue;
// Check the score
s = (_score_part[owner][i] >= _score_info[i].needed) ?
_score_info[i].score :
_score_part[owner][i] * _score_info[i].score / _score_info[i].needed;
if (s < 0) s = 0;
score += s;
total_score += _score_info[i].score;
}
_score_part[owner][SCORE_TOTAL] = score;
// We always want the score scaled to SCORE_MAX (1000)
if (total_score != SCORE_MAX) score = score * SCORE_MAX / total_score;
}
if (update) {
p->old_economy[0].performance_history = score;
UpdateCompanyHQ(p, score);
p->old_economy[0].company_value = CalculateCompanyValue(p);
}
InvalidateWindow(WC_PERFORMANCE_DETAIL, 0);
return score;
}
// use PLAYER_SPECTATOR as new_player to delete the player.
void ChangeOwnershipOfPlayerItems(PlayerID old_player, PlayerID new_player)
{
Town *t;
PlayerID old = _current_player;
_current_player = old_player;
/* Temporarily increase the player's money, to be sure that
* removing his/her property doesn't fail because of lack of money.
* Not too drastically though, because it could overflow */
if (new_player == PLAYER_SPECTATOR) {
GetPlayer(old_player)->money64 = MAX_UVALUE(uint64) >>2; // jackpot ;p
UpdatePlayerMoney32(GetPlayer(old_player));
}
if (new_player == PLAYER_SPECTATOR) {
Subsidy *s;
for (s = _subsidies; s != endof(_subsidies); s++) {
if (s->cargo_type != CT_INVALID && s->age >= 12) {
if (GetStation(s->to)->owner == old_player) s->cargo_type = CT_INVALID;
}
}
}
/* Take care of rating in towns */
FOR_ALL_TOWNS(t) {
/* If a player takes over, give the ratings to that player. */
if (new_player != PLAYER_SPECTATOR) {
if (HASBIT(t->have_ratings, old_player)) {
if (HASBIT(t->have_ratings, new_player)) {
// use max of the two ratings.
t->ratings[new_player] = max(t->ratings[new_player], t->ratings[old_player]);
} else {
SETBIT(t->have_ratings, new_player);
t->ratings[new_player] = t->ratings[old_player];
}
}
}
/* Reset the ratings for the old player */
t->ratings[old_player] = 500;
CLRBIT(t->have_ratings, old_player);
}
{
int num_train = 0;
int num_road = 0;
int num_ship = 0;
int num_aircraft = 0;
Vehicle *v;
// Determine Ids for the new vehicles
FOR_ALL_VEHICLES(v) {
if (v->owner == new_player) {
switch (v->type) {
case VEH_Train: if (IsFrontEngine(v)) num_train++; break;
case VEH_Road: num_road++; break;
case VEH_Ship: num_ship++; break;
case VEH_Aircraft: if (v->subtype <= 2) num_aircraft++; break;
default: break;
}
}
}
FOR_ALL_VEHICLES(v) {
if (v->owner == old_player && IS_BYTE_INSIDE(v->type, VEH_Train, VEH_Aircraft + 1)) {
if (new_player == PLAYER_SPECTATOR) {
DeleteWindowById(WC_VEHICLE_VIEW, v->index);
DeleteWindowById(WC_VEHICLE_DETAILS, v->index);
DeleteWindowById(WC_VEHICLE_ORDERS, v->index);
DeleteVehicle(v);
} else {
v->owner = new_player;
if (IsEngineCountable(v)) GetPlayer(new_player)->num_engines[v->engine_type]++;
switch (v->type) {
case VEH_Train: if (IsFrontEngine(v)) v->unitnumber = ++num_train; break;
case VEH_Road: v->unitnumber = ++num_road; break;
case VEH_Ship: v->unitnumber = ++num_ship; break;
case VEH_Aircraft: if (v->subtype <= 2) v->unitnumber = ++num_aircraft; break;
}
}
}
}
}
// Change ownership of tiles
{
TileIndex tile = 0;
do {
ChangeTileOwner(tile, old_player, new_player);
} while (++tile != MapSize());
}
/* Change color of existing windows */
if (new_player != PLAYER_SPECTATOR) ChangeWindowOwner(old_player, new_player);
{
Player *p;
uint i;
/* Check for shares */
FOR_ALL_PLAYERS(p) {
for (i = 0; i < 4; i++) {
/* 'Sell' the share if this player has any */
if (p->share_owners[i] == _current_player) {
p->share_owners[i] = PLAYER_SPECTATOR;
}
}
}
p = GetPlayer(_current_player);
/* Sell all the shares that people have on this company */
for (i = 0; i < 4; i++)
p->share_owners[i] = PLAYER_SPECTATOR;
}
_current_player = old;
MarkWholeScreenDirty();
}
static void PlayersCheckBankrupt(Player *p)
{
PlayerID owner;
int64 val;
// If the player has money again, it does not go bankrupt
if (p->player_money >= 0) {
p->quarters_of_bankrupcy = 0;
return;
}
p->quarters_of_bankrupcy++;
owner = p->index;
switch (p->quarters_of_bankrupcy) {
case 2:
AddNewsItem( (StringID)(owner | NB_BTROUBLE),
NEWS_FLAGS(NM_CALLBACK, 0, NT_COMPANY_INFO, DNC_BANKRUPCY),0,0);
break;
case 3: {
/* XXX - In multiplayer, should we ask other players if it wants to take
over when it is a human company? -- TrueLight */
if (IsHumanPlayer(owner)) {
AddNewsItem( (StringID)(owner | NB_BTROUBLE),
NEWS_FLAGS(NM_CALLBACK, 0, NT_COMPANY_INFO, DNC_BANKRUPCY),0,0);
break;
}
// Check if the company has any value.. if not, declare it bankrupt
// right now
val = CalculateCompanyValue(p);
if (val > 0) {
p->bankrupt_value = val;
p->bankrupt_asked = 1 << owner; // Don't ask the owner
p->bankrupt_timeout = 0;
break;
}
// Else, falltrue to case 4...
}
case 4: {
// Close everything the owner has open
DeletePlayerWindows(owner);
// Show bankrupt news
SetDParam(0, p->name_1);
SetDParam(1, p->name_2);
AddNewsItem( (StringID)(owner | NB_BBANKRUPT), NEWS_FLAGS(NM_CALLBACK, 0, NT_COMPANY_INFO, DNC_BANKRUPCY),0,0);
if (IsHumanPlayer(owner)) {
/* XXX - If we are in offline mode, leave the player playing. Eg. there
* is no THE-END, otherwise mark the player as spectator to make sure
* he/she is no long in control of this company */
if (!_networking) {
p->bankrupt_asked = 0xFF;
p->bankrupt_timeout = 0x456;
break;
} else if (owner == _local_player) {
_local_player = _network_playas = PLAYER_SPECTATOR;
}
#ifdef ENABLE_NETWORK
/* The server has to handle all administrative issues, for example
* updating and notifying all clients of what has happened */
if (_network_server) {
const NetworkClientState *cs;
NetworkClientInfo *ci = NetworkFindClientInfoFromIndex(NETWORK_SERVER_INDEX);
/* The server has just gone belly-up, mark it as spectator */
if (owner == ci->client_playas) {
ci->client_playas = PLAYER_SPECTATOR;
NetworkUpdateClientInfo(NETWORK_SERVER_INDEX);
}
/* Find all clients that were in control of this company,
* and mark them as spectator; broadcast this message to everyone */
FOR_ALL_CLIENTS(cs) {
ci = DEREF_CLIENT_INFO(cs);
if (ci->client_playas == owner) {
ci->client_playas = PLAYER_SPECTATOR;
NetworkUpdateClientInfo(ci->client_index);
}
}
}
#endif /* ENABLE_NETWORK */
}
/* Remove the player */
ChangeOwnershipOfPlayerItems(owner, PLAYER_SPECTATOR);
/* Register the player as not-active */
p->is_active = false;
if (!IsHumanPlayer(owner) && (!_networking || _network_server) && _ai.enabled)
AI_PlayerDied(owner);
}
}
}
void DrawNewsBankrupcy(Window *w)
{
Player *p;
DrawNewsBorder(w);
p = GetPlayer(GB(WP(w,news_d).ni->string_id, 0, 4));
DrawPlayerFace(p->face, p->player_color, 2, 23);
GfxFillRect(3, 23, 3+91, 23+118, 0x323 | USE_COLORTABLE);
SetDParam(0, p->president_name_1);
SetDParam(1, p->president_name_2);
DrawStringMultiCenter(49, 148, STR_7058_PRESIDENT, 94);
switch (WP(w,news_d).ni->string_id & 0xF0) {
case NB_BTROUBLE:
DrawStringCentered(w->width>>1, 1, STR_7056_TRANSPORT_COMPANY_IN_TROUBLE, 0);
SetDParam(0, p->name_1);
SetDParam(1, p->name_2);
DrawStringMultiCenter(
((w->width - 101) >> 1) + 98,
90,
STR_7057_WILL_BE_SOLD_OFF_OR_DECLARED,
w->width - 101);
break;
case NB_BMERGER: {
int32 price;
DrawStringCentered(w->width>>1, 1, STR_7059_TRANSPORT_COMPANY_MERGER, 0);
COPY_IN_DPARAM(0,WP(w,news_d).ni->params, 2);
SetDParam(2, p->name_1);
SetDParam(3, p->name_2);
price = WP(w,news_d).ni->params[2];
SetDParam(4, price);
DrawStringMultiCenter(
((w->width - 101) >> 1) + 98,
90,
price==0 ? STR_707F_HAS_BEEN_TAKEN_OVER_BY : STR_705A_HAS_BEEN_SOLD_TO_FOR,
w->width - 101);
break;
}
case NB_BBANKRUPT:
DrawStringCentered(w->width>>1, 1, STR_705C_BANKRUPT, 0);
COPY_IN_DPARAM(0,WP(w,news_d).ni->params, 2);
DrawStringMultiCenter(
((w->width - 101) >> 1) + 98,
90,
STR_705D_HAS_BEEN_CLOSED_DOWN_BY,
w->width - 101);
break;
case NB_BNEWCOMPANY:
DrawStringCentered(w->width>>1, 1, STR_705E_NEW_TRANSPORT_COMPANY_LAUNCHED, 0);
SetDParam(0, p->name_1);
SetDParam(1, p->name_2);
COPY_IN_DPARAM(2,WP(w,news_d).ni->params, 2);
DrawStringMultiCenter(
((w->width - 101) >> 1) + 98,
90,
STR_705F_STARTS_CONSTRUCTION_NEAR,
w->width - 101);
break;
default:
NOT_REACHED();
}
}
StringID GetNewsStringBankrupcy(const NewsItem *ni)
{
const Player *p = GetPlayer(GB(ni->string_id, 0, 4));
switch (ni->string_id & 0xF0) {
case NB_BTROUBLE:
SetDParam(0, STR_7056_TRANSPORT_COMPANY_IN_TROUBLE);
SetDParam(1, STR_7057_WILL_BE_SOLD_OFF_OR_DECLARED);
SetDParam(2, p->name_1);
SetDParam(3, p->name_2);
return STR_02B6;
case NB_BMERGER:
SetDParam(0, STR_7059_TRANSPORT_COMPANY_MERGER);
SetDParam(1, STR_705A_HAS_BEEN_SOLD_TO_FOR);
COPY_IN_DPARAM(2,ni->params, 2);
SetDParam(4, p->name_1);
SetDParam(5, p->name_2);
COPY_IN_DPARAM(6,ni->params + 2, 1);
return STR_02B6;
case NB_BBANKRUPT:
SetDParam(0, STR_705C_BANKRUPT);
SetDParam(1, STR_705D_HAS_BEEN_CLOSED_DOWN_BY);
COPY_IN_DPARAM(2,ni->params, 2);
return STR_02B6;
case NB_BNEWCOMPANY:
SetDParam(0, STR_705E_NEW_TRANSPORT_COMPANY_LAUNCHED);
SetDParam(1, STR_705F_STARTS_CONSTRUCTION_NEAR);
SetDParam(2, p->name_1);
SetDParam(3, p->name_2);
COPY_IN_DPARAM(4,ni->params, 2);
return STR_02B6;
default:
NOT_REACHED();
}
/* useless, but avoids compiler warning this way */
return 0;
}
static void PlayersGenStatistics(void)
{
Station *st;
Player *p;
FOR_ALL_STATIONS(st) {
_current_player = st->owner;
SET_EXPENSES_TYPE(EXPENSES_PROPERTY);
SubtractMoneyFromPlayer(_price.station_value >> 1);
}
if (!HASBIT(1<<0|1<<3|1<<6|1<<9, _cur_month))
return;
FOR_ALL_PLAYERS(p) {
if (p->is_active) {
memmove(&p->old_economy, &p->cur_economy, sizeof(p->old_economy));
memset(&p->cur_economy, 0, sizeof(p->cur_economy));
if (p->num_valid_stat_ent != 24)
p->num_valid_stat_ent++;
UpdateCompanyRatingAndValue(p, true);
PlayersCheckBankrupt(p);
if (p->block_preview != 0)
p->block_preview--;
}
}
InvalidateWindow(WC_INCOME_GRAPH, 0);
InvalidateWindow(WC_OPERATING_PROFIT, 0);
InvalidateWindow(WC_DELIVERED_CARGO, 0);
InvalidateWindow(WC_PERFORMANCE_HISTORY, 0);
InvalidateWindow(WC_COMPANY_VALUE, 0);
InvalidateWindow(WC_COMPANY_LEAGUE, 0);
}
static void AddSingleInflation(int32 *value, uint16 *frac, int32 amt)
{
int64 tmp;
int32 low;
tmp = BIGMULS(*value, amt);
*frac = (uint16)(low = (uint16)tmp + *frac);
*value += (int32)(tmp >> 16) + (low >> 16);
}
static void AddInflation(void)
{
int i;
int32 inf = _economy.infl_amount * 54;
for (i = 0; i != NUM_PRICES; i++) {
AddSingleInflation((int32*)&_price + i, _price_frac + i, inf);
}
_economy.max_loan_unround += BIGMULUS(_economy.max_loan_unround, inf, 16);
if (_economy.max_loan + 50000 <= _economy.max_loan_unround)
_economy.max_loan += 50000;
inf = _economy.infl_amount_pr * 54;
for (i = 0; i != NUM_CARGO; i++) {
AddSingleInflation(
(int32*)_cargo_payment_rates + i,
_cargo_payment_rates_frac + i,
inf
);
}
InvalidateWindowClasses(WC_BUILD_VEHICLE);
InvalidateWindowClasses(WC_REPLACE_VEHICLE);
InvalidateWindowClasses(WC_VEHICLE_DETAILS);
InvalidateWindow(WC_PAYMENT_RATES, 0);
}
static void PlayersPayInterest(void)
{
const Player* p;
int interest = _economy.interest_rate * 54;
FOR_ALL_PLAYERS(p) {
if (!p->is_active) continue;
_current_player = p->index;
SET_EXPENSES_TYPE(EXPENSES_LOAN_INT);
SubtractMoneyFromPlayer(BIGMULUS(p->current_loan, interest, 16));
SET_EXPENSES_TYPE(EXPENSES_OTHER);
SubtractMoneyFromPlayer(_price.station_value >> 2);
}
}
static void HandleEconomyFluctuations(void)
{
if (_opt.diff.economy == 0) return;
if (--_economy.fluct == 0) {
_economy.fluct = -(int)GB(Random(), 0, 2);
AddNewsItem(STR_7073_WORLD_RECESSION_FINANCIAL, NEWS_FLAGS(NM_NORMAL,0,NT_ECONOMY,0), 0, 0);
} else if (_economy.fluct == -12) {
_economy.fluct = GB(Random(), 0, 8) + 312;
AddNewsItem(STR_7074_RECESSION_OVER_UPTURN_IN, NEWS_FLAGS(NM_NORMAL,0,NT_ECONOMY,0), 0, 0);
}
}
static byte _price_category[NUM_PRICES] = {
0, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 1, 1, 1, 1, 1, 1,
2,
};
static const int32 _price_base[NUM_PRICES] = {
100, // station_value
100, // build_rail
95, // build_road
65, // build_signals
275, // build_bridge
600, // build_train_depot
500, // build_road_depot
700, // build_ship_depot
450, // build_tunnel
200, // train_station_track
180, // train_station_length
600, // build_airport
200, // build_bus_station
200, // build_truck_station
350, // build_dock
400000, // build_railvehicle
2000, // build_railwagon
700000, // aircraft_base
14000, // roadveh_base
65000, // ship_base
20, // build_trees
250, // terraform
20, // clear_1
40, // purchase_land
200, // clear_2
500, // clear_3
20, // remove_trees
-70, // remove_rail
10, // remove_signals
50, // clear_bridge
80, // remove_train_depot
80, // remove_road_depot
90, // remove_ship_depot
30, // clear_tunnel
10000, // clear_water
50, // remove_rail_station
30, // remove_airport
50, // remove_bus_station
50, // remove_truck_station
55, // remove_dock
1600, // remove_house
40, // remove_road
5600, // running_rail[0] railroad
5200, // running_rail[1] monorail
4800, // running_rail[2] maglev
9600, // aircraft_running
1600, // roadveh_running
5600, // ship_running
1000000, // build_industry
};
static byte price_base_multiplier[NUM_PRICES];
/**
* Reset changes to the price base multipliers.
*/
void ResetPriceBaseMultipliers(void)
{
uint i;
// 8 means no multiplier.
for (i = 0; i < NUM_PRICES; i++)
price_base_multiplier[i] = 8;
}
/**
* Change a price base by the given factor.
* The price base is altered by factors of two, with an offset of 8.
* NewBaseCost = OldBaseCost * 2^(n-8)
* @param price Index of price base to change.
* @param factor Amount to change by.
*/
void SetPriceBaseMultiplier(uint price, byte factor)
{
assert(price < NUM_PRICES);
price_base_multiplier[price] = factor;
}
void StartupEconomy(void)
{
int i;
assert(sizeof(_price) == NUM_PRICES * sizeof(int32));
for (i = 0; i != NUM_PRICES; i++) {
int32 price = _price_base[i];
if (_price_category[i] != 0) {
uint mod = _price_category[i] == 1 ? _opt.diff.vehicle_costs : _opt.diff.construction_cost;
if (mod < 1) {
price = price * 3 >> 2;
} else if (mod > 1) {
price = price * 9 >> 3;
}
}
if (price_base_multiplier[i] > 8) {
price <<= price_base_multiplier[i] - 8;
} else {
price >>= 8 - price_base_multiplier[i];
}
((int32*)&_price)[i] = price;
_price_frac[i] = 0;
}
_economy.interest_rate = _opt.diff.initial_interest;
_economy.infl_amount = _opt.diff.initial_interest;
_economy.infl_amount_pr = max(0, _opt.diff.initial_interest - 1);
_economy.max_loan_unround = _economy.max_loan = _opt.diff.max_loan * 1000;
_economy.fluct = GB(Random(), 0, 8) + 168;
}
Pair SetupSubsidyDecodeParam(const Subsidy* s, bool mode)
{
TileIndex tile;
TileIndex tile2;
Pair tp;
/* if mode is false, use the singular form */
SetDParam(0, _cargoc.names_s[s->cargo_type] + (mode ? 0 : 32));
if (s->age < 12) {
if (s->cargo_type != CT_PASSENGERS && s->cargo_type != CT_MAIL) {
SetDParam(1, STR_INDUSTRY);
SetDParam(2, s->from);
tile = GetIndustry(s->from)->xy;
if (s->cargo_type != CT_GOODS && s->cargo_type != CT_FOOD) {
SetDParam(4, STR_INDUSTRY);
SetDParam(5, s->to);
tile2 = GetIndustry(s->to)->xy;
} else {
SetDParam(4, STR_TOWN);
SetDParam(5, s->to);
tile2 = GetTown(s->to)->xy;
}
} else {
SetDParam(1, STR_TOWN);
SetDParam(2, s->from);
tile = GetTown(s->from)->xy;
SetDParam(4, STR_TOWN);
SetDParam(5, s->to);
tile2 = GetTown(s->to)->xy;
}
} else {
SetDParam(1, s->from);
tile = GetStation(s->from)->xy;
SetDParam(2, s->to);
tile2 = GetStation(s->to)->xy;
}
tp.a = tile;
tp.b = tile2;
return tp;
}
void DeleteSubsidyWithIndustry(IndustryID index)
{
Subsidy *s;
for (s = _subsidies; s != endof(_subsidies); s++) {
if (s->cargo_type != CT_INVALID && s->age < 12 &&
s->cargo_type != CT_PASSENGERS && s->cargo_type != CT_MAIL &&
(index == s->from || (s->cargo_type!=CT_GOODS && s->cargo_type!=CT_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);
}
typedef struct FoundRoute {
uint distance;
CargoID cargo;
void *from;
void *to;
} FoundRoute;
static void FindSubsidyPassengerRoute(FoundRoute *fr)
{
Town *from,*to;
fr->distance = (uint)-1;
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)-1;
fr->from = i = GetRandomIndustry();
if (i == NULL) return;
// Randomize cargo type
if (Random()&1 && i->produced_cargo[1] != CT_INVALID) {
cargo = i->produced_cargo[1];
trans = i->pct_transported[1];
total = i->total_production[1];
} else {
cargo = i->produced_cargo[0];
trans = i->pct_transported[0];
total = i->total_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 || cargo == CT_PASSENGERS)
return;
fr->cargo = cargo;
if (cargo == CT_GOODS || cargo == CT_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 (i == i2 || i == NULL ||
(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;
}
static void SubsidyMonthlyHandler(void)
{
Subsidy *s;
Pair pair;
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 = SetupSubsidyDecodeParam(s, 1);
AddNewsItem(STR_202E_OFFER_OF_SUBSIDY_EXPIRED, NEWS_FLAGS(NM_NORMAL, NF_TILE, NT_SUBSIDIES, 0), pair.a, pair.b);
s->cargo_type = CT_INVALID;
modified = true;
} else if (s->age == 2*12-1) {
st = GetStation(s->to);
if (st->owner == _local_player) {
pair = SetupSubsidyDecodeParam(s, 1);
AddNewsItem(STR_202F_SUBSIDY_WITHDRAWN_SERVICE, NEWS_FLAGS(NM_NORMAL, NF_TILE, NT_SUBSIDIES, 0), pair.a, pair.b);
}
s->cargo_type = CT_INVALID;
modified = true;
} 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;
s->to = (fr.cargo == CT_GOODS || fr.cargo == CT_FOOD) ? ((Town*)fr.to)->index : ((Industry*)fr.to)->index;
add_subsidy:
if (!CheckSubsidyDuplicate(s)) {
s->age = 0;
pair = SetupSubsidyDecodeParam(s, 0);
AddNewsItem(STR_2030_SERVICE_SUBSIDY_OFFERED, NEWS_FLAGS(NM_NORMAL, NF_TILE, NT_SUBSIDIES, 0), pair.a, pair.b);
modified = true;
break;
}
}
} while (n--);
}
no_add:;
if (modified)
InvalidateWindow(WC_SUBSIDIES_LIST, 0);
}
static const SaveLoad _subsidies_desc[] = {
SLE_VAR(Subsidy, cargo_type, SLE_UINT8),
SLE_VAR(Subsidy, age, SLE_UINT8),
SLE_CONDVAR(Subsidy, from, SLE_FILE_U8 | SLE_VAR_U16, 0, 4),
SLE_CONDVAR(Subsidy, from, SLE_UINT16, 5, SL_MAX_VERSION),
SLE_CONDVAR(Subsidy, to, SLE_FILE_U8 | SLE_VAR_U16, 0, 4),
SLE_CONDVAR(Subsidy, to, SLE_UINT16, 5, SL_MAX_VERSION),
SLE_END()
};
static void Save_SUBS(void)
{
int i;
Subsidy *s;
for (i = 0; i != lengthof(_subsidies); i++) {
s = &_subsidies[i];
if (s->cargo_type != CT_INVALID) {
SlSetArrayIndex(i);
SlObject(s, _subsidies_desc);
}
}
}
static void Load_SUBS(void)
{
int index;
while ((index = SlIterateArray()) != -1)
SlObject(&_subsidies[index], _subsidies_desc);
}
int32 GetTransportedGoodsIncome(uint num_pieces, uint dist, byte transit_days, CargoID cargo_type)
{
CargoID cargo = cargo_type;
byte f;
/* zero the distance if it's the bank and very short transport. */
if (_opt.landscape == LT_NORMAL && cargo == CT_VALUABLES && dist < 10)
dist = 0;
f = 255;
if (transit_days > _cargoc.transit_days_1[cargo]) {
transit_days -= _cargoc.transit_days_1[cargo];
f -= transit_days;
if (transit_days > _cargoc.transit_days_2[cargo]) {
transit_days -= _cargoc.transit_days_2[cargo];
if (f < transit_days) {
f = 0;
} else {
f -= transit_days;
}
}
}
if (f < 31) f = 31;
return BIGMULSS(dist * f * num_pieces, _cargo_payment_rates[cargo], 21);
}
static void DeliverGoodsToIndustry(TileIndex xy, CargoID cargo_type, int num_pieces)
{
Industry* best = NULL;
Industry* ind;
uint u;
// Check if there's an industry close to the station that accepts the cargo
// XXX - Think of something better to
// 1) Only deliver to industries which are withing the catchment radius
// 2) Distribute between industries if more then one is present
u = (_patches.station_spread + 8) * 2;
FOR_ALL_INDUSTRIES(ind) {
uint t;
if (( cargo_type == ind->accepts_cargo[0] ||
cargo_type == ind->accepts_cargo[1] ||
cargo_type == ind->accepts_cargo[2]
) &&
ind->produced_cargo[0] != CT_INVALID &&
ind->produced_cargo[0] != cargo_type &&
(t = DistanceManhattan(ind->xy, xy)) < u) {
u = t;
best = ind;
}
}
/* Found one? */
if (best != NULL) {
best->was_cargo_delivered = true;
best->cargo_waiting[0] = min(best->cargo_waiting[0] + num_pieces, 0xFFFF);
}
}
static bool CheckSubsidised(Station *from, Station *to, CargoID cargo_type)
{
Subsidy *s;
TileIndex xy;
Pair pair;
Player *p;
// 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 */
if (cargo_type == CT_PASSENGERS || cargo_type == CT_MAIL) {
xy = GetTown(s->from)->xy;
} else {
xy = (GetIndustry(s->from))->xy;
}
if (DistanceMax(xy, from->xy) > 9) continue;
/* Check distance from dest */
switch (cargo_type) {
case CT_PASSENGERS:
case CT_MAIL:
case CT_GOODS:
case CT_FOOD:
xy = GetTown(s->to)->xy;
break;
default:
xy = GetIndustry(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 = SetupSubsidyDecodeParam(s, 0);
InjectDParam(2);
p = GetPlayer(_current_player);
SetDParam(0, p->name_1);
SetDParam(1, p->name_2);
AddNewsItem(
STR_2031_SERVICE_SUBSIDY_AWARDED + _opt.diff.subsidy_multiplier,
NEWS_FLAGS(NM_NORMAL, NF_TILE, NT_SUBSIDIES, 0),
pair.a, pair.b
);
InvalidateWindow(WC_SUBSIDIES_LIST, 0);
return true;
}
}
return false;
}
static int32 DeliverGoods(int num_pieces, CargoID cargo_type, StationID source, StationID dest, byte days_in_transit)
{
bool subsidised;
Station *s_from, *s_to;
int32 profit;
assert(num_pieces > 0);
// Update player statistics
{
Player *p = GetPlayer(_current_player);
p->cur_economy.delivered_cargo += num_pieces;
SETBIT(p->cargo_types, cargo_type);
}
// Get station pointers.
s_from = GetStation(source);
s_to = GetStation(dest);
// Check if a subsidy applies.
subsidised = CheckSubsidised(s_from, s_to, cargo_type);
// Increase town's counter for some special goods types
if (cargo_type == CT_FOOD) s_to->town->new_act_food += num_pieces;
if (cargo_type == CT_WATER) s_to->town->new_act_water += num_pieces;
// Give the goods to the industry.
DeliverGoodsToIndustry(s_to->xy, cargo_type, num_pieces);
// Determine profit
profit = GetTransportedGoodsIncome(num_pieces, DistanceManhattan(s_from->xy, s_to->xy), days_in_transit, cargo_type);
// Modify profit if a subsidy is in effect
if (subsidised) {
switch (_opt.diff.subsidy_multiplier) {
case 0: profit += profit >> 1; break;
case 1: profit *= 2; break;
case 2: profit *= 3; break;
default: profit *= 4; break;
}
}
return profit;
}
/*
* Returns true if Vehicle v should wait loading because other vehicle is
* already loading the same cargo type
* v = vehicle to load, u = GetFirstInChain(v)
*/
static bool LoadWait(const Vehicle* v, const Vehicle* u)
{
const Vehicle *w;
const Vehicle *x;
bool has_any_cargo = false;
if (!(u->current_order.flags & OF_FULL_LOAD)) return false;
for (w = u; w != NULL; w = w->next) {
if (w->cargo_count != 0) {
if (v->cargo_type == w->cargo_type &&
u->last_station_visited == w->cargo_source) {
return false;
}
has_any_cargo = true;
}
}
FOR_ALL_VEHICLES(x) {
if ((x->type != VEH_Train || IsFrontEngine(x)) && // for all locs
u->last_station_visited == x->last_station_visited && // at the same station
!(x->vehstatus & (VS_STOPPED | VS_CRASHED)) && // not stopped or crashed
x->current_order.type == OT_LOADING && // loading
u != x) { // not itself
bool other_has_any_cargo = false;
bool has_space_for_same_type = false;
bool other_has_same_type = false;
for (w = x; w != NULL; w = w->next) {
if (w->cargo_count < w->cargo_cap && v->cargo_type == w->cargo_type) {
has_space_for_same_type = true;
}
if (w->cargo_count != 0) {
if (v->cargo_type == w->cargo_type &&
u->last_station_visited == w->cargo_source) {
other_has_same_type = true;
}
other_has_any_cargo = true;
}
}
if (has_space_for_same_type) {
if (other_has_same_type) return true;
if (other_has_any_cargo && !has_any_cargo) return true;
}
}
}
return false;
}
int LoadUnloadVehicle(Vehicle *v, bool just_arrived)
{
int profit = 0;
int v_profit = 0; //virtual profit for feeder systems
int v_profit_total = 0;
int unloading_time = 20;
Vehicle *u = v;
int result = 0;
StationID last_visited;
Station *st;
int t;
uint count, cap;
PlayerID old_player;
bool completely_empty = true;
byte load_amount;
bool anything_loaded = false;
assert(v->current_order.type == OT_LOADING);
v->cur_speed = 0;
/* Loading can only have finished when all the cargo has been unloaded, and
* there is nothing left to load. It's easier to clear this if the
* conditions haven't been met than attempting to check them all before
* enabling though. */
SETBIT(v->load_status, LS_LOADING_FINISHED);
old_player = _current_player;
_current_player = v->owner;
last_visited = v->last_station_visited;
st = GetStation(last_visited);
for (; v != NULL; v = v->next) {
GoodsEntry* ge;
load_amount = EngInfo(v->engine_type)->load_amount;
if (_patches.gradual_loading) {
uint16 cb_load_amount = GetVehicleCallback(CBID_VEHICLE_LOAD_AMOUNT, 0, 0, v->engine_type, v);
if (cb_load_amount != CALLBACK_FAILED) load_amount = cb_load_amount & 0xFF;
}
if (v->cargo_cap == 0) continue;
/* If the vehicle has just arrived, set it to unload. */
if (just_arrived) SETBIT(v->load_status, LS_CARGO_UNLOADING);
ge = &st->goods[v->cargo_type];
count = GB(ge->waiting_acceptance, 0, 12);
/* unload? */
if (v->cargo_count != 0 && HASBIT(v->load_status, LS_CARGO_UNLOADING)) {
uint16 amount_unloaded = _patches.gradual_loading ? min(v->cargo_count, load_amount) : v->cargo_count;
CLRBIT(u->load_status, LS_LOADING_FINISHED);
if (v->cargo_source != last_visited && ge->waiting_acceptance & 0x8000 && !(u->current_order.flags & OF_TRANSFER)) {
// deliver goods to the station
st->time_since_unload = 0;
unloading_time += v->cargo_count; /* TTDBUG: bug in original TTD */
if (just_arrived && !HASBIT(v->load_status, LS_CARGO_PAID_FOR)) {
profit += DeliverGoods(v->cargo_count, v->cargo_type, v->cargo_source, last_visited, v->cargo_days);
SETBIT(v->load_status, LS_CARGO_PAID_FOR);
}
result |= 1;
v->cargo_count -= amount_unloaded;
if (_patches.gradual_loading) continue;
} else if (u->current_order.flags & (OF_UNLOAD | OF_TRANSFER)) {
/* unload goods and let it wait at the station */
st->time_since_unload = 0;
if (just_arrived && (u->current_order.flags & OF_TRANSFER) && !HASBIT(v->load_status, LS_CARGO_PAID_FOR)) {
v_profit = GetTransportedGoodsIncome(
v->cargo_count,
DistanceManhattan(GetStation(v->cargo_source)->xy, GetStation(last_visited)->xy),
v->cargo_days,
v->cargo_type) * 3 / 2;
v_profit_total += v_profit;
SETBIT(v->load_status, LS_CARGO_PAID_FOR);
}
unloading_time += v->cargo_count;
t = GB(ge->waiting_acceptance, 0, 12);
if (t == 0) {
// No goods waiting at station
ge->enroute_time = v->cargo_days;
ge->enroute_from = v->cargo_source;
} else {
// Goods already waiting at station. Set counters to the worst value.
if (v->cargo_days >= ge->enroute_time)
ge->enroute_time = v->cargo_days;
if (last_visited != ge->enroute_from)
ge->enroute_from = v->cargo_source;
}
// Update amount of waiting cargo
SB(ge->waiting_acceptance, 0, 12, min(amount_unloaded + t, 0xFFF));
if (u->current_order.flags & OF_TRANSFER) {
ge->feeder_profit += v_profit;
u->profit_this_year += v_profit;
}
result |= 2;
v->cargo_count -= amount_unloaded;
if (_patches.gradual_loading) continue;
}
if (v->cargo_count != 0) completely_empty = false;
}
/* The vehicle must have been unloaded because it is either empty, or
* the UNLOADING bit is already clear in v->load_status. */
CLRBIT(v->load_status, LS_CARGO_UNLOADING);
CLRBIT(v->load_status, LS_CARGO_PAID_FOR);
/* don't pick up goods that we unloaded */
if (u->current_order.flags & OF_UNLOAD) continue;
/* update stats */
ge->days_since_pickup = 0;
switch (u->type) {
case VEH_Train: t = u->u.rail.cached_max_speed; break;
case VEH_Road: t = u->max_speed / 2; break;
default: t = u->max_speed; break;
}
// if last speed is 0, we treat that as if no vehicle has ever visited the station.
ge->last_speed = min(t, 255);
ge->last_age = _cur_year - v->build_year;
// If there's goods waiting at the station, and the vehicle
// has capacity for it, load it on the vehicle.
if (count != 0 &&
(cap = v->cargo_cap - v->cargo_count) != 0) {
int cargoshare;
int feeder_profit_share;
if (v->cargo_count == 0)
TriggerVehicle(v, VEHICLE_TRIGGER_NEW_CARGO);
/* Skip loading this vehicle if another train/vehicle is already handling
* the same cargo type at this station */
if (_patches.improved_load && (u->current_order.flags & OF_FULL_LOAD) && LoadWait(v,u)) continue;
/* TODO: Regarding this, when we do gradual loading, we
* should first unload all vehicles and then start
* loading them. Since this will cause
* VEHICLE_TRIGGER_EMPTY to be called at the time when
* the whole vehicle chain is really totally empty, the
* @completely_empty assignment can then be safely
* removed; that's how TTDPatch behaves too. --pasky */
completely_empty = false;
anything_loaded = true;
if (cap > count) cap = count;
if (_patches.gradual_loading) cap = min(cap, load_amount);
if (cap < count) CLRBIT(u->load_status, LS_LOADING_FINISHED);
cargoshare = cap * 10000 / ge->waiting_acceptance;
feeder_profit_share = ge->feeder_profit * cargoshare / 10000;
v->cargo_count += cap;
ge->waiting_acceptance -= cap;
v->profit_this_year -= feeder_profit_share;
ge->feeder_profit -= feeder_profit_share;
unloading_time += cap;
st->time_since_load = 0;
// And record the source of the cargo, and the days in travel.
v->cargo_source = ge->enroute_from;
v->cargo_days = ge->enroute_time;
result |= 2;
st->last_vehicle_type = v->type;
}
}
v = u;
if (_patches.gradual_loading) {
/* The time it takes to load one 'slice' of cargo or passengers depends
* on the vehicle type - the values here are those found in TTDPatch */
uint gradual_loading_wait_time[] = { 40, 20, 10, 20 };
unloading_time = gradual_loading_wait_time[v->type - VEH_Train];
if (HASBIT(v->load_status, LS_LOADING_FINISHED)) {
if (anything_loaded) {
unloading_time += 20;
} else {
unloading_time = 20;
}
}
}
if (v_profit_total > 0) {
ShowFeederIncomeAnimation(v->x_pos, v->y_pos, v->z_pos, v_profit_total);
}
if (v->type == VEH_Train) {
// Each platform tile is worth 2 rail vehicles.
int overhang = v->u.rail.cached_total_length - GetStationPlatforms(st, v->tile) * TILE_SIZE;
if (overhang > 0) {
unloading_time <<= 1;
unloading_time += (overhang * unloading_time) / 8;
}
}
v->load_unload_time_rem = unloading_time;
if (completely_empty) {
TriggerVehicle(v, VEHICLE_TRIGGER_EMPTY);
}
if (result != 0) {
InvalidateWindow(WC_VEHICLE_DETAILS, v->index);
MarkStationTilesDirty(st);
if (result & 2) InvalidateWindow(WC_STATION_VIEW, last_visited);
if (profit != 0) {
v->profit_this_year += profit;
SubtractMoneyFromPlayer(-profit);
if (IsLocalPlayer() && !PlayVehicleSound(v, VSE_LOAD_UNLOAD)) {
SndPlayVehicleFx(SND_14_CASHTILL, v);
}
ShowCostOrIncomeAnimation(v->x_pos, v->y_pos, v->z_pos, -profit);
}
}
_current_player = old_player;
return result;
}
void PlayersMonthlyLoop(void)
{
PlayersGenStatistics();
if (_patches.inflation && _cur_year < MAX_YEAR)
AddInflation();
PlayersPayInterest();
// Reset the _current_player flag
_current_player = OWNER_NONE;
HandleEconomyFluctuations();
SubsidyMonthlyHandler();
}
static void DoAcquireCompany(Player *p)
{
Player *owner;
int i,pi;
int64 value;
SetDParam(0, p->name_1);
SetDParam(1, p->name_2);
SetDParam(2, p->bankrupt_value);
AddNewsItem( (StringID)(_current_player | NB_BMERGER), NEWS_FLAGS(NM_CALLBACK, 0, NT_COMPANY_INFO, DNC_BANKRUPCY),0,0);
// original code does this a little bit differently
pi = p->index;
ChangeOwnershipOfPlayerItems(pi, _current_player);
if (p->bankrupt_value == 0) {
owner = GetPlayer(_current_player);
owner->current_loan += p->current_loan;
}
value = CalculateCompanyValue(p) >> 2;
for (i = 0; i != 4; i++) {
if (p->share_owners[i] != PLAYER_SPECTATOR) {
owner = GetPlayer(p->share_owners[i]);
owner->money64 += value;
owner->yearly_expenses[0][EXPENSES_OTHER] += value;
UpdatePlayerMoney32(owner);
}
}
p->is_active = false;
DeletePlayerWindows(pi);
RebuildVehicleLists(); //Updates the open windows to add the newly acquired vehicles to the lists
}
extern int GetAmountOwnedBy(Player *p, byte owner);
/** Acquire shares in an opposing company.
* @param tile unused
* @param p1 player to buy the shares from
* @param p2 unused
*/
int32 CmdBuyShareInCompany(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
{
Player *p;
int64 cost;
/* Check if buying shares is allowed (protection against modified clients */
if (!IsValidPlayer((PlayerID)p1) || !_patches.allow_shares) return CMD_ERROR;
SET_EXPENSES_TYPE(EXPENSES_OTHER);
p = GetPlayer(p1);
/* Protect new companies from hostile takeovers */
if (_cur_year - p->inaugurated_year < 6) return_cmd_error(STR_7080_PROTECTED);
/* Those lines are here for network-protection (clients can be slow) */
if (GetAmountOwnedBy(p, PLAYER_SPECTATOR) == 0) return 0;
/* We can not buy out a real player (temporarily). TODO: well, enable it obviously */
if (GetAmountOwnedBy(p, PLAYER_SPECTATOR) == 1 && !p->is_ai) return 0;
cost = CalculateCompanyValue(p) >> 2;
if (flags & DC_EXEC) {
PlayerID* b = p->share_owners;
int i;
while (*b != PLAYER_SPECTATOR) b++; /* share owners is guaranteed to contain at least one PLAYER_SPECTATOR */
*b = _current_player;
for (i = 0; p->share_owners[i] == _current_player;) {
if (++i == 4) {
p->bankrupt_value = 0;
DoAcquireCompany(p);
break;
}
}
InvalidateWindow(WC_COMPANY, p1);
}
return cost;
}
/** Sell shares in an opposing company.
* @param tile unused
* @param p1 player to sell the shares from
* @param p2 unused
*/
int32 CmdSellShareInCompany(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
{
Player *p;
int64 cost;
/* Check if buying shares is allowed (protection against modified clients */
if (!IsValidPlayer((PlayerID)p1) || !_patches.allow_shares) return CMD_ERROR;
SET_EXPENSES_TYPE(EXPENSES_OTHER);
p = GetPlayer(p1);
/* Those lines are here for network-protection (clients can be slow) */
if (GetAmountOwnedBy(p, _current_player) == 0) return 0;
/* adjust it a little to make it less profitable to sell and buy */
cost = CalculateCompanyValue(p) >> 2;
cost = -(cost - (cost >> 7));
if (flags & DC_EXEC) {
PlayerID* b = p->share_owners;
while (*b != _current_player) b++; /* share owners is guaranteed to contain player */
*b = PLAYER_SPECTATOR;
InvalidateWindow(WC_COMPANY, p1);
}
return cost;
}
/** Buy up another company.
* When a competing company is gone bankrupt you get the chance to purchase
* that company.
* @todo currently this only works for AI players
* @param tile unused
* @param p1 player/company to buy up
* @param p2 unused
*/
int32 CmdBuyCompany(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
{
Player *p;
/* Disable takeovers in multiplayer games */
if (!IsValidPlayer((PlayerID)p1) || _networking) return CMD_ERROR;
SET_EXPENSES_TYPE(EXPENSES_OTHER);
p = GetPlayer(p1);
if (!p->is_ai) return CMD_ERROR;
if (flags & DC_EXEC) {
DoAcquireCompany(p);
}
return p->bankrupt_value;
}
// Prices
static void SaveLoad_PRIC(void)
{
SlArray(&_price, NUM_PRICES, SLE_INT32);
SlArray(&_price_frac, NUM_PRICES, SLE_UINT16);
}
// Cargo payment rates
static void SaveLoad_CAPR(void)
{
SlArray(&_cargo_payment_rates, NUM_CARGO, SLE_INT32);
SlArray(&_cargo_payment_rates_frac, NUM_CARGO, SLE_UINT16);
}
static const SaveLoad _economy_desc[] = {
SLE_VAR(Economy, max_loan, SLE_INT32),
SLE_VAR(Economy, max_loan_unround, SLE_INT32),
SLE_VAR(Economy, fluct, SLE_FILE_I16 | SLE_VAR_I32),
SLE_VAR(Economy, interest_rate, SLE_UINT8),
SLE_VAR(Economy, infl_amount, SLE_UINT8),
SLE_VAR(Economy, infl_amount_pr, SLE_UINT8),
SLE_END()
};
// Economy variables
static void SaveLoad_ECMY(void)
{
SlObject(&_economy, _economy_desc);
}
const ChunkHandler _economy_chunk_handlers[] = {
{ 'PRIC', SaveLoad_PRIC, SaveLoad_PRIC, CH_RIFF | CH_AUTO_LENGTH},
{ 'CAPR', SaveLoad_CAPR, SaveLoad_CAPR, CH_RIFF | CH_AUTO_LENGTH},
{ 'SUBS', Save_SUBS, Load_SUBS, CH_ARRAY},
{ 'ECMY', SaveLoad_ECMY, SaveLoad_ECMY, CH_RIFF | CH_LAST},
};
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