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OpenTTD-patches/engine.c

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#include "stdafx.h"
#include "ttd.h"
#include "engine.h"
#include "table/engines.h"
#include "player.h"
#include "command.h"
#include "vehicle.h"
#include "news.h"
#include "saveload.h"
#define UPDATE_PLAYER_RAILTYPE(e,p) if ((byte)(e->railtype + 1) > p->max_railtype) p->max_railtype = e->railtype + 1;
enum {
ENGINE_AVAILABLE = 1,
ENGINE_INTRODUCING = 2,
ENGINE_PREVIEWING = 4,
};
/* This maps per-landscape cargo ids to globally unique cargo ids usable ie. in
* the custom GRF files. It is basically just a transcribed table from
* TTDPatch's newgrf.txt. */
byte _global_cargo_id[NUM_LANDSCAPE][NUM_CARGO] = {
/* LT_NORMAL */ { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12 },
/* LT_HILLY */ { 0, 1, 2, 3, 4, 5, 6, 7, 28, 11, 10, 12 },
/* LT_DESERT */ { 0, 16, 2, 3, 13, 5, 6, 7, 14, 15, 10, 12 },
/* LT_CANDY */ { 0, 17, 2, 18, 19, 20, 21, 22, 23, 24, 25, 26 },
// 27 is paper in temperate climate in TTDPatch
// Following can be renumbered:
// 29 is the default cargo for the purpose of spritesets
// 30 is the purchase list image (the equivalent of 0xff) for the purpose of spritesets
};
/* These two arrays provide a reverse mapping. */
byte _local_cargo_id_ctype[NUM_CID] = {
CT_PASSENGERS, CT_COAL, CT_MAIL, CT_OIL, CT_LIVESTOCK, CT_GOODS, CT_GRAIN, CT_WOOD, // 0-7
CT_IRON_ORE, CT_STEEL, CT_VALUABLES, CT_PAPER, CT_FOOD, CT_FRUIT, CT_COPPER_ORE, CT_WATER, // 8-15
CT_RUBBER, CT_SUGAR, CT_TOYS, CT_BATTERIES, CT_CANDY, CT_TOFFEE, CT_COLA, CT_COTTON_CANDY, // 16-23
CT_BUBBLES, CT_PLASTIC, CT_FIZZY_DRINKS, CT_PAPER /* unsup. */, CT_HILLY_UNUSED // 24-28
};
/* LT'th bit is set of the particular landscape if cargo available there.
* 1: LT_NORMAL, 2: LT_HILLY, 4: LT_DESERT, 8: LT_CANDY */
byte _local_cargo_id_landscape[NUM_CID] = {
15, 3, 15, 7, 3, 7, 7, 7, 1, 1, 7, 2, 7, // 0-12
4, 4, 4, 4, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 2, // 13-28
};
void ShowEnginePreviewWindow(int engine);
void DeleteCustomEngineNames()
{
uint i;
StringID old;
for(i=0; i!=TOTAL_NUM_ENGINES; i++) {
old = _engine_name_strings[i];
_engine_name_strings[i] = i + STR_8000_KIRBY_PAUL_TANK_STEAM;
DeleteName(old);
}
_vehicle_design_names &= ~1;
}
void LoadCustomEngineNames()
{
// XXX: not done */
DEBUG(misc, 1) ("LoadCustomEngineNames: not done");
}
static void SetupEngineNames()
{
uint i;
for(i=0; i!=TOTAL_NUM_ENGINES; i++)
_engine_name_strings[i] = STR_SV_EMPTY;
DeleteCustomEngineNames();
LoadCustomEngineNames();
}
static void AdjustAvailAircraft()
{
uint16 date = _date;
byte avail = 0;
if (date >= 12784) avail |= 2; // big airport
if (date < 14610 || _patches.always_small_airport) avail |= 1; // small airport
if (date >= 15706) avail |= 4; // enable heliport
if (avail != _avail_aircraft) {
_avail_aircraft = avail;
InvalidateWindow(WC_BUILD_STATION, 0);
}
}
static void CalcEngineReliability(Engine *e)
{
uint age = e->age;
if (age < e->duration_phase_1) {
uint start = e->reliability_start;
e->reliability = age * (e->reliability_max - start) / e->duration_phase_1 + start;
} else if ((age -= e->duration_phase_1) < e->duration_phase_2) {
e->reliability = e->reliability_max;
} else if ((age -= e->duration_phase_2) < e->duration_phase_3) {
uint max = e->reliability_max;
e->reliability = (int)age * (int)(e->reliability_final - max) / e->duration_phase_3 + max;
} else {
e->player_avail = _patches.never_expire_vehicles ? -1 : 0;
e->reliability = e->reliability_final;
}
}
void StartupEngines()
{
Engine *e;
const EngineInfo *ei;
uint32 r;
SetupEngineNames();
for(e=_engines, ei=_engine_info; e != endof(_engines); e++,ei++) {
e->age = 0;
e->railtype = ei->railtype_climates >> 4;
e->flags = 0;
e->player_avail = 0;
r = Random();
e->intro_date = (uint16)((r & 0x1FF) + ei->base_intro);
if (e->intro_date <= _date) {
e->age = (_date - e->intro_date) >> 5;
e->player_avail = (byte)-1;
e->flags |= ENGINE_AVAILABLE;
}
e->reliability_start = (uint16)(((r >> 16) & 0x3fff) + 0x7AE0);
r = Random();
e->reliability_max = (uint16)((r & 0x3fff) + 0xbfff);
e->reliability_final = (uint16)(((r>>16) & 0x3fff) + 0x3fff);
r = Random();
e->duration_phase_1 = (uint16)((r & 0x1F) + 7);
e->duration_phase_2 = (uint16)(((r >> 5) & 0xF) + ei->base_life * 12 - 96);
e->duration_phase_3 = (uint16)(((r >> 9) & 0x7F) + 120);
e->reliability_spd_dec = (ei->unk2&0x7F) << 2;
/* my invented flag for something that is a wagon */
if (ei->unk2 & 0x80) {
e->age = 0xFFFF;
} else {
CalcEngineReliability(e);
}
e->lifelength = ei->lifelength + _patches.extend_vehicle_life;
// prevent certain engines from ever appearing.
if (!HASBIT(ei->railtype_climates, _opt.landscape)) {
e->flags |= ENGINE_AVAILABLE;
e->player_avail = 0;
}
}
AdjustAvailAircraft();
}
uint32 _engine_refit_masks[256];
// TODO: We don't support cargo-specific wagon overrides. Pretty exotic... ;-) --pasky
struct WagonOverride {
byte *train_id;
int trains;
struct SpriteSuperSet superset;
};
static struct WagonOverrides {
int overrides_count;
struct WagonOverride *overrides;
} _engine_wagon_overrides[256];
void SetWagonOverrideSprites(byte engine, struct SpriteSuperSet *superset,
byte *train_id, int trains)
{
struct WagonOverrides *wos;
struct WagonOverride *wo;
wos = &_engine_wagon_overrides[engine];
wos->overrides_count++;
wos->overrides = realloc(wos->overrides,
wos->overrides_count * sizeof(struct WagonOverride));
wo = &wos->overrides[wos->overrides_count - 1];
wo->superset = *superset;
wo->trains = trains;
wo->train_id = malloc(trains);
memcpy(wo->train_id, train_id, trains);
}
static struct SpriteSuperSet *GetWagonOverrideSpriteSet(byte engine, byte overriding_engine)
{
struct WagonOverrides *wos = &_engine_wagon_overrides[engine];
int i;
// XXX: This could turn out to be a timesink on profiles. We could always just
// dedicate 65535 bytes for an [engine][train] trampoline.
for (i = 0; i < wos->overrides_count; i++) {
struct WagonOverride *wo = &wos->overrides[i];
int j;
for (j = 0; j < wo->trains; j++) {
if (wo->train_id[j] == overriding_engine)
return &wo->superset;
}
}
return NULL;
}
byte _engine_original_sprites[256];
// 0 - 28 are cargos, 29 is default, 30 is the advert (purchase list)
// (It isn't and shouldn't be like this in the GRF files since new cargo types
// may appear in future - however it's more convenient to store it like this in
// memory. --pasky)
static struct SpriteSuperSet _engine_custom_sprites[256][NUM_CID];
void SetCustomEngineSprites(byte engine, byte cargo, struct SpriteSuperSet *superset)
{
assert(superset->sprites_per_set == 4 || superset->sprites_per_set == 8);
_engine_custom_sprites[engine][cargo] = *superset;
}
int GetCustomEngineSprite(byte engine, uint16 overriding_engine, byte cargo,
byte loaded, byte in_motion, byte direction)
{
struct SpriteSuperSet *superset = &_engine_custom_sprites[engine][cargo];
int totalsets, spriteset;
int r;
if (overriding_engine != 0xffff) {
struct SpriteSuperSet *overset;
overset = GetWagonOverrideSpriteSet(engine, overriding_engine);
if (overset) superset = overset;
}
if (!superset->sprites_per_set && cargo != 29) {
// This superset is empty but perhaps there'll be a default one.
superset = &_engine_custom_sprites[engine][29];
}
if (!superset->sprites_per_set) {
// This superset is empty. This function users should therefore
// look up the sprite number in _engine_original_sprites.
return 0;
}
direction %= 8;
if (superset->sprites_per_set == 4)
direction %= 4;
totalsets = in_motion ? superset->loaded_count : superset->loading_count;
// My aim here is to make it possible to visually determine absolutely
// empty and totally full vehicles. --pasky
if (loaded == 100 || totalsets == 1) { // full
spriteset = totalsets - 1;
} else if (loaded == 0 || totalsets == 2) { // empty
spriteset = 0;
} else { // something inbetween
spriteset = loaded * (totalsets - 2) / 100 + 1;
// correct possible rounding errors
if (!spriteset)
spriteset = 1;
else if (spriteset == totalsets - 1)
spriteset--;
}
r = (in_motion ? superset->loaded[spriteset] : superset->loading[spriteset]) + direction;
return r;
}
static char *_engine_custom_names[256];
void SetCustomEngineName(int engine, char *name)
{
_engine_custom_names[engine] = strdup(name);
}
StringID GetCustomEngineName(int engine)
{
if (!_engine_custom_names[engine])
return _engine_name_strings[engine];
strcpy(_userstring, _engine_custom_names[engine]);
return STR_SPEC_USERSTRING;
}
void AcceptEnginePreview(Engine *e, int player)
{
Player *p;
SETBIT(e->player_avail, player);
p = DEREF_PLAYER(player);
UPDATE_PLAYER_RAILTYPE(e,p);
e->preview_player = 0xFF;
InvalidateWindowClasses(WC_BUILD_VEHICLE);
}
void EnginesDailyLoop()
{
Engine *e;
int i,num;
Player *p;
uint mask;
int32 best_hist;
int best_player;
if (_cur_year >= 130)
return;
for(e=_engines,i=0; i!=TOTAL_NUM_ENGINES; e++,i++) {
if (e->flags & ENGINE_INTRODUCING) {
if (e->flags & ENGINE_PREVIEWING) {
if (!--e->preview_wait) {
e->flags &= ~ENGINE_PREVIEWING;
DeleteWindowById(WC_ENGINE_PREVIEW, i);
e->preview_player++;
}
} else if (e->preview_player != 0xFF) {
num = e->preview_player;
mask = 0;
do {
best_hist = -1;
best_player = -1;
FOR_ALL_PLAYERS(p) {
if (p->is_active && p->block_preview == 0 && !HASBIT(mask,p->index) &&
p->old_economy[0].performance_history > best_hist) {
best_hist = p->old_economy[0].performance_history;
best_player = p->index;
}
}
if (best_player == -1) {
e->preview_player = 0xFF;
goto next_engine;
}
mask |= (1 << best_player);
} while (--num != 0);
if (!IS_HUMAN_PLAYER(best_player)) {
/* TTDBUG: TTD has a bug here */
AcceptEnginePreview(e, best_player);
} else {
e->flags |= ENGINE_PREVIEWING;
e->preview_wait = 20;
if (IS_INTERACTIVE_PLAYER(best_player)) {
ShowEnginePreviewWindow(i);
}
}
}
}
next_engine:;
}
}
int32 CmdWantEnginePreview(int x, int y, uint32 flags, uint32 p1, uint32 p2)
{
if (flags & DC_EXEC) {
AcceptEnginePreview(&_engines[p1], _current_player);
}
return 0;
}
void NewVehicleAvailable(Engine *e)
{
Vehicle *v;
Player *p;
int index = e - _engines;
// In case the player didn't build the vehicle during the intro period,
// prevent that player from getting future intro periods for a while.
if (e->flags&ENGINE_INTRODUCING) {
FOR_ALL_PLAYERS(p) {
if (!HASBIT(e->player_avail,p->index))
continue;
for(v=_vehicles;;) {
if (v->type == VEH_Train || v->type == VEH_Road || v->type == VEH_Ship ||
(v->type == VEH_Aircraft && v->subtype <= 2)) {
if (v->owner == p->index && v->engine_type == index) break;
}
if (++v == endof(_vehicles)) {
p->block_preview = 20;
break;
}
}
}
}
e->flags = (e->flags & ~ENGINE_INTRODUCING) | ENGINE_AVAILABLE;
InvalidateWindowClasses(WC_BUILD_VEHICLE);
// Now available for all players
e->player_avail = (byte)-1;
// Do not introduce new rail wagons
if ((byte)index < NUM_TRAIN_ENGINES) {
const RailVehicleInfo *rvi = &_rail_vehicle_info[index];
if(rvi->flags & RVI_WAGON)
return;
}
// make maglev / monorail available
FOR_ALL_PLAYERS(p) {
if (p->is_active)
UPDATE_PLAYER_RAILTYPE(e,p);
}
if ((byte)index < NUM_TRAIN_ENGINES) {
AddNewsItem(index, NEWS_FLAGS(NM_CALLBACK, 0, NT_NEW_VEHICLES, DNC_TRAINAVAIL), 0, 0);
} else if ((byte)index < NUM_TRAIN_ENGINES + NUM_ROAD_ENGINES) {
AddNewsItem(index, NEWS_FLAGS(NM_CALLBACK, 0, NT_NEW_VEHICLES, DNC_ROADAVAIL), 0, 0);
} else if ((byte)index < NUM_TRAIN_ENGINES + NUM_ROAD_ENGINES + NUM_SHIP_ENGINES) {
AddNewsItem(index, NEWS_FLAGS(NM_CALLBACK, 0, NT_NEW_VEHICLES, DNC_SHIPAVAIL), 0, 0);
} else {
AddNewsItem(index, NEWS_FLAGS(NM_CALLBACK, 0, NT_NEW_VEHICLES, DNC_AIRCRAFTAVAIL), 0, 0);
}
}
void EnginesMonthlyLoop()
{
Engine *e;
if (_cur_year < 130) {
for(e=_engines; e != endof(_engines); e++) {
// Age the vehicle
if (e->flags&ENGINE_AVAILABLE && e->age != 0xFFFF) {
e->age++;
CalcEngineReliability(e);
}
if (!(e->flags & ENGINE_AVAILABLE) && (uint16)(_date - min(_date, 365)) >= e->intro_date) {
// Introduce it to all players
NewVehicleAvailable(e);
} else if (!(e->flags & (ENGINE_AVAILABLE|ENGINE_INTRODUCING)) && _date >= e->intro_date) {
// Introduction date has passed.. show introducing dialog to one player.
e->flags |= ENGINE_INTRODUCING;
e->preview_player = 1; // Give to the player with the highest rating.
}
}
}
AdjustAvailAircraft();
}
int32 CmdRenameEngine(int x, int y, uint32 flags, uint32 p1, uint32 p2)
{
StringID str;
str = AllocateName((byte*)_decode_parameters, 0);
if (str == 0)
return CMD_ERROR;
if (flags & DC_EXEC) {
StringID old_str = _engine_name_strings[p1];
_engine_name_strings[p1] = str;
DeleteName(old_str);
_vehicle_design_names |= 3;
MarkWholeScreenDirty();
} else {
DeleteName(str);
}
return 0;
}
int GetPlayerMaxRailtype(int p)
{
Engine *e;
int rt = 0;
int i;
for(e=_engines,i=0; i!=lengthof(_engines); e++,i++) {
if (!HASBIT(e->player_avail, p))
continue;
if ((i >= 27 && i < 54) || (i >= 57 && i < 84) || (i >= 89 && i < 116))
continue;
if (rt < e->railtype)
rt = e->railtype;
}
return rt + 1;
}
static const byte _engine_desc[] = {
SLE_VAR(Engine,intro_date, SLE_UINT16),
SLE_VAR(Engine,age, SLE_UINT16),
SLE_VAR(Engine,reliability, SLE_UINT16),
SLE_VAR(Engine,reliability_spd_dec, SLE_UINT16),
SLE_VAR(Engine,reliability_start, SLE_UINT16),
SLE_VAR(Engine,reliability_max, SLE_UINT16),
SLE_VAR(Engine,reliability_final, SLE_UINT16),
SLE_VAR(Engine,duration_phase_1, SLE_UINT16),
SLE_VAR(Engine,duration_phase_2, SLE_UINT16),
SLE_VAR(Engine,duration_phase_3, SLE_UINT16),
SLE_VAR(Engine,lifelength, SLE_UINT8),
SLE_VAR(Engine,flags, SLE_UINT8),
SLE_VAR(Engine,preview_player, SLE_UINT8),
SLE_VAR(Engine,preview_wait, SLE_UINT8),
SLE_VAR(Engine,railtype, SLE_UINT8),
SLE_VAR(Engine,player_avail, SLE_UINT8),
// reserve extra space in savegame here. (currently 16 bytes)
SLE_CONDARR(NullStruct,null,SLE_FILE_U64 | SLE_VAR_NULL, 2, 2, 255),
SLE_END()
};
static void Save_ENGN()
{
Engine *e;
int i;
for(i=0,e=_engines; i != lengthof(_engines); i++,e++) {
SlSetArrayIndex(i);
SlObject(e, _engine_desc);
}
}
static void Load_ENGN()
{
int index;
while ((index = SlIterateArray()) != -1) {
SlObject(&_engines[index], _engine_desc);
}
}
static void LoadSave_ENGS()
{
SlArray(_engine_name_strings, lengthof(_engine_name_strings), SLE_STRINGID);
}
const ChunkHandler _engine_chunk_handlers[] = {
{ 'ENGN', Save_ENGN, Load_ENGN, CH_ARRAY},
{ 'ENGS', LoadSave_ENGS, LoadSave_ENGS, CH_RIFF | CH_LAST},
};
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