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Location: cpp/openttd-patchpack/source/engine.c - annotation
r2078:0300868e49d0
33.4 KiB
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(svn r2588) Codechange: Remove PLAYER_SEED_RANDOM
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r0:d63b455452f6 r0:d63b455452f6 r0:d63b455452f6 r0:d63b455452f6 r0:d63b455452f6 r0:d63b455452f6 r0:d63b455452f6 r0:d63b455452f6 r0:d63b455452f6 r0:d63b455452f6 r0:d63b455452f6 r0:d63b455452f6 r1093:18f56ef2d029 r0:d63b455452f6 r0:d63b455452f6 r0:d63b455452f6 r0:d63b455452f6 r0:d63b455452f6 r0:d63b455452f6 r0:d63b455452f6 r0:d63b455452f6 r0:d63b455452f6 r1093:18f56ef2d029 r0:d63b455452f6 r0:d63b455452f6 r0:d63b455452f6 r1926:ff7c3132a421 r0:d63b455452f6 r0:d63b455452f6 r0:d63b455452f6 r1093:18f56ef2d029 r0:d63b455452f6 r0:d63b455452f6 r0:d63b455452f6 r0:d63b455452f6 r0:d63b455452f6 r0:d63b455452f6 r0:d63b455452f6 r0:d63b455452f6 r0:d63b455452f6 r1197:5c12672cee22 r1196:d1b0ca2c5bef r1197:5c12672cee22 r1197:5c12672cee22 r1196:d1b0ca2c5bef r1196:d1b0ca2c5bef r1196:d1b0ca2c5bef r1196:d1b0ca2c5bef r1197:5c12672cee22 r1197:5c12672cee22 r1197:5c12672cee22 r1196:d1b0ca2c5bef r1196:d1b0ca2c5bef r1786:f4dff9cc496a r1196:d1b0ca2c5bef r1926:ff7c3132a421 r1196:d1b0ca2c5bef r1196:d1b0ca2c5bef r1196:d1b0ca2c5bef r1196:d1b0ca2c5bef r1196:d1b0ca2c5bef r1196:d1b0ca2c5bef r1196:d1b0ca2c5bef r1196:d1b0ca2c5bef r1196:d1b0ca2c5bef | #include "stdafx.h"
#include "openttd.h"
#include "debug.h"
#include "table/strings.h"
#include "engine.h"
#include "table/engines.h"
#include "gfx.h"
#include "player.h"
#include "command.h"
#include "vehicle.h"
#include "news.h"
#include "saveload.h"
#include "sprite.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,
};
/** TRANSLATE FROM LOCAL CARGO TO GLOBAL CARGO ID'S.
* This maps the per-landscape cargo ID's to globally unique cargo ID's usable ie. in
* the custom GRF files. It is basically just a transcribed table from TTDPatch's newgrf.txt.
*/
const CargoID _global_cargo_id[NUM_LANDSCAPE][NUM_CARGO] = {
/* LT_NORMAL */ {GC_PASSENGERS, GC_COAL, GC_MAIL, GC_OIL, GC_LIVESTOCK, GC_GOODS, GC_GRAIN, GC_WOOD, GC_IRON_ORE, GC_STEEL, GC_VALUABLES, GC_PAPER_TEMP},
/* LT_HILLY */ {GC_PASSENGERS, GC_COAL, GC_MAIL, GC_OIL, GC_LIVESTOCK, GC_GOODS, GC_GRAIN, GC_WOOD, GC_INVALID, GC_PAPER, GC_VALUABLES, GC_FOOD },
/* LT_DESERT */ {GC_PASSENGERS, GC_RUBBER,GC_MAIL, GC_OIL, GC_FRUIT, GC_GOODS, GC_GRAIN, GC_WOOD, GC_COPPER_ORE, GC_WATER, GC_VALUABLES, GC_FOOD },
/* LT_CANDY */ {GC_PASSENGERS, GC_SUGAR, GC_MAIL, GC_TOYS,GC_BATTERIES, GC_CANDY, GC_TOFFEE,GC_COLA, GC_COTTON_CANDY,GC_BUBBLES,GC_PLASTIC, GC_FIZZY_DRINKS },
/**
* - GC_INVALID (255) means that cargo is not available for that climate
* - GC_PAPER_TEMP (27) is paper in temperate climate in TTDPatch
* Following can be renumbered:
* - GC_DEFAULT (29) is the defa ult cargo for the purpose of spritesets
* - GC_PURCHASE (30) is the purchase list image (the equivalent of 0xff) for the purpose of spritesets
*/
};
/** BEGIN --- TRANSLATE FROM GLOBAL CARGO TO LOCAL CARGO ID'S **/
/** Map global cargo ID's to local-cargo ID's */
const CargoID _local_cargo_id_ctype[NUM_GLOBAL_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 */
CT_INVALID, CT_INVALID /* 29-30 */
};
#define MC(cargo) (1 << cargo)
/** Bitmasked value where the global cargo ID is available in landscape
* 0: LT_NORMAL, 1: LT_HILLY, 2: LT_DESERT, 3: LT_CANDY */
const uint32 _landscape_global_cargo_mask[NUM_LANDSCAPE] =
{ /* LT_NORMAL: temperate */
MC(GC_PASSENGERS)|MC(GC_COAL)|MC(GC_MAIL)|MC(GC_OIL)|MC(GC_LIVESTOCK)|MC(GC_GOODS)|MC(GC_GRAIN)|MC(GC_WOOD)|
MC(GC_IRON_ORE)|MC(GC_STEEL)|MC(GC_VALUABLES)|MC(GC_FOOD)|MC(GC_UNDEFINED),
/* LT_HILLY: arctic */
MC(GC_PASSENGERS)|MC(GC_COAL)|MC(GC_MAIL)|MC(GC_OIL)|MC(GC_LIVESTOCK)|MC(GC_GOODS)|
MC(GC_GRAIN)|MC(GC_WOOD)|MC(GC_VALUABLES)|MC(GC_PAPER)|MC(GC_FOOD)|MC(GC_UNDEFINED),
/* LT_DESERT: rainforest/desert */
MC(GC_PASSENGERS)|MC(GC_MAIL)|MC(GC_OIL)|MC(GC_GOODS)|MC(GC_GRAIN)|MC(GC_WOOD)|
MC(GC_VALUABLES)|MC(GC_FOOD)|MC(GC_FRUIT)|MC(GC_COPPER_ORE)|MC(GC_WATER)|MC(GC_RUBBER),
/* LT_CANDY: toyland */
MC(GC_PASSENGERS)|MC(GC_MAIL)|MC(GC_SUGAR)|MC(GC_TOYS)|MC(GC_BATTERIES)|MC(GC_CANDY)|
MC(GC_TOFFEE)|MC(GC_COLA)|MC(GC_COTTON_CANDY)|MC(GC_BUBBLES)|MC(GC_PLASTIC)|MC(GC_FIZZY_DRINKS)
};
/** END --- TRANSLATE FROM GLOBAL CARGO TO LOCAL CARGO ID'S **/
/** Bitmasked values of what type of cargo is refittable for the given vehicle-type.
* This coupled with the landscape information (_landscape_global_cargo_mask) gives
* us exactly what is refittable and what is not */
const uint32 _default_refitmasks[NUM_VEHICLE_TYPES] = {
/* Trains */
MC(GC_PASSENGERS)|MC(GC_COAL)|MC(GC_MAIL)|MC(GC_LIVESTOCK)|MC(GC_GOODS)|MC(GC_GRAIN)|MC(GC_WOOD)|MC(GC_IRON_ORE)|
MC(GC_STEEL)|MC(GC_VALUABLES)|MC(GC_PAPER)|MC(GC_FOOD)|MC(GC_FRUIT)|MC(GC_COPPER_ORE)|MC(GC_WATER)|MC(GC_SUGAR)|
MC(GC_TOYS)|MC(GC_CANDY)|MC(GC_TOFFEE)|MC(GC_COLA)|MC(GC_COTTON_CANDY)|MC(GC_BUBBLES)|MC(GC_PLASTIC)|MC(GC_FIZZY_DRINKS),
/* Road vehicles (not refittable by default) */
0,
/* Ships */
MC(GC_COAL)|MC(GC_MAIL)|MC(GC_LIVESTOCK)|MC(GC_GOODS)|MC(GC_GRAIN)|MC(GC_WOOD)|MC(GC_IRON_ORE)|MC(GC_STEEL)|MC(GC_VALUABLES)|
MC(GC_PAPER)|MC(GC_FOOD)|MC(GC_FRUIT)|MC(GC_COPPER_ORE)|MC(GC_WATER)|MC(GC_RUBBER)|MC(GC_SUGAR)|MC(GC_TOYS)|MC(GC_BATTERIES)|
MC(GC_CANDY)|MC(GC_TOFFEE)|MC(GC_COLA)|MC(GC_COTTON_CANDY)|MC(GC_BUBBLES)|MC(GC_PLASTIC)|MC(GC_FIZZY_DRINKS),
/* Aircraft */
MC(GC_PASSENGERS)|MC(GC_MAIL)|MC(GC_GOODS)|MC(GC_VALUABLES)|MC(GC_FOOD)|MC(GC_FRUIT)|MC(GC_SUGAR)|MC(GC_TOYS)|
MC(GC_BATTERIES)|MC(GC_CANDY)|MC(GC_TOFFEE)|MC(GC_COLA)|MC(GC_COTTON_CANDY)|MC(GC_BUBBLES)|MC(GC_PLASTIC)|MC(GC_FIZZY_DRINKS),
/* Special/Disaster */
0,0
};
#undef MC
void ShowEnginePreviewWindow(int engine);
void DeleteCustomEngineNames(void)
{
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(void)
{
// XXX: not done */
DEBUG(misc, 1) ("LoadCustomEngineNames: not done");
}
static void SetupEngineNames(void)
{
StringID *name;
for (name = _engine_name_strings; name != endof(_engine_name_strings); name++)
*name = STR_SV_EMPTY;
DeleteCustomEngineNames();
LoadCustomEngineNames();
}
static void AdjustAvailAircraft(void)
{
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 {
// time's up for this engine
// make it either available to all players (if never_expire_vehicles is enabled and if it was available earlier)
// or disable this engine completely
e->player_avail = (_patches.never_expire_vehicles && e->player_avail)? -1 : 0;
e->reliability = e->reliability_final;
}
}
void AddTypeToEngines(void)
{
Engine *e;
uint32 counter = 0;
for(e=_engines; e != endof(_engines); e++, counter++) {
e->type = VEH_Train;
if (counter >= ROAD_ENGINES_INDEX) {
e->type = VEH_Road;
if (counter >= SHIP_ENGINES_INDEX) {
e->type = VEH_Ship;
if (counter >= AIRCRAFT_ENGINES_INDEX) {
e->type = VEH_Aircraft;
if (counter >= TOTAL_NUM_ENGINES) {
e->type = VEH_Special;
}
}
}
}
}
}
void StartupEngines(void)
{
Engine *e;
const EngineInfo *ei;
uint32 r, counter = 0;
SetupEngineNames();
for(e=_engines, ei=_engine_info; e != endof(_engines); e++, ei++, counter++) {
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;
}
/* This sets up type for the engine
It is needed if you want to ask the engine what type it is
It should hopefully be the same as when you ask a vehicle what it is
but using this, you can ask what type an engine number is
even if it is not a vehicle (yet)*/
}
AdjustAvailAircraft();
}
uint32 _engine_refit_masks[TOTAL_NUM_ENGINES];
// TODO: We don't support cargo-specific wagon overrides. Pretty exotic... ;-) --pasky
typedef struct WagonOverride {
byte *train_id;
int trains;
SpriteGroup group;
} WagonOverride;
typedef struct WagonOverrides {
int overrides_count;
WagonOverride *overrides;
} WagonOverrides;
static WagonOverrides _engine_wagon_overrides[TOTAL_NUM_ENGINES];
void SetWagonOverrideSprites(byte engine, SpriteGroup *group, byte *train_id,
int trains)
{
WagonOverrides *wos;
WagonOverride *wo;
wos = &_engine_wagon_overrides[engine];
wos->overrides_count++;
wos->overrides = realloc(wos->overrides,
wos->overrides_count * sizeof(*wos->overrides));
wo = &wos->overrides[wos->overrides_count - 1];
/* FIXME: If we are replacing an override, release original SpriteGroup
* to prevent leaks. But first we need to refcount the SpriteGroup.
* --pasky */
wo->group = *group;
wo->trains = trains;
wo->train_id = malloc(trains);
memcpy(wo->train_id, train_id, trains);
}
static SpriteGroup *GetWagonOverrideSpriteSet(byte engine, byte overriding_engine)
{
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 O(1). Or O(logMlogN) and searching binary tree or smt. like
// that. --pasky
for (i = 0; i < wos->overrides_count; i++) {
WagonOverride *wo = &wos->overrides[i];
int j;
for (j = 0; j < wo->trains; j++) {
if (wo->train_id[j] == overriding_engine)
return &wo->group;
}
}
return NULL;
}
byte _engine_original_sprites[TOTAL_NUM_ENGINES];
// 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 SpriteGroup _engine_custom_sprites[TOTAL_NUM_ENGINES][NUM_GLOBAL_CID];
void SetCustomEngineSprites(byte engine, byte cargo, SpriteGroup *group)
{
/* FIXME: If we are replacing an override, release original SpriteGroup
* to prevent leaks. But first we need to refcount the SpriteGroup.
* --pasky */
_engine_custom_sprites[engine][cargo] = *group;
}
typedef SpriteGroup *(*resolve_callback)(SpriteGroup *spritegroup,
const Vehicle *veh, uint16 callback_info, void *resolve_func); /* XXX data pointer used as function pointer */
static SpriteGroup* ResolveVehicleSpriteGroup(SpriteGroup *spritegroup,
const Vehicle *veh, uint16 callback_info, resolve_callback resolve_func)
{
//debug("spgt %d", spritegroup->type);
switch (spritegroup->type) {
case SGT_REAL:
case SGT_CALLBACK:
return spritegroup;
case SGT_DETERMINISTIC: {
DeterministicSpriteGroup *dsg = &spritegroup->g.determ;
SpriteGroup *target;
int value = -1;
//debug("[%p] Having fun resolving variable %x", veh, dsg->variable);
if (dsg->variable == 0x0C) {
/* Callback ID */
value = callback_info & 0xFF;
} else if ((dsg->variable >> 6) == 0) {
/* General property */
value = GetDeterministicSpriteValue(dsg->variable);
} else {
/* Vehicle-specific property. */
if (veh == NULL) {
/* We are in a purchase list of something,
* and we are checking for something undefined.
* That means we should get the first target
* (NOT the default one). */
if (dsg->num_ranges > 0) {
target = &dsg->ranges[0].group;
} else {
target = dsg->default_group;
}
return resolve_func(target, NULL, callback_info, resolve_func);
}
if (dsg->var_scope == VSG_SCOPE_PARENT) {
/* First engine in the vehicle chain */
if (veh->type == VEH_Train)
veh = GetFirstVehicleInChain(veh);
}
if (dsg->variable == 0x40 || dsg->variable == 0x41) {
if (veh->type == VEH_Train) {
Vehicle *u = GetFirstVehicleInChain(veh);
byte chain_before = 0, chain_after = 0;
while (u != veh) {
chain_before++;
if (dsg->variable == 0x41 && u->engine_type != veh->engine_type)
chain_before = 0;
u = u->next;
}
while (u->next != NULL && (dsg->variable == 0x40 || u->next->engine_type == veh->engine_type)) {
chain_after++;
u = u->next;
};
value = chain_before | chain_after << 8
| (chain_before + chain_after) << 16;
} else {
value = 1; /* 1 vehicle in the chain */
}
} else {
// TTDPatch runs on little-endian arch;
// Variable is 0x80 + offset in TTD's vehicle structure
switch (dsg->variable - 0x80) {
#define veh_prop(id_, value_) case (id_): value = (value_); break
veh_prop(0x00, veh->type);
veh_prop(0x01, veh->subtype);
veh_prop(0x04, veh->index);
veh_prop(0x05, veh->index & 0xFF);
/* XXX? Is THIS right? */
veh_prop(0x0A, PackOrder(&veh->current_order));
veh_prop(0x0B, PackOrder(&veh->current_order) & 0xff);
veh_prop(0x0C, veh->num_orders);
veh_prop(0x0D, veh->cur_order_index);
veh_prop(0x10, veh->load_unload_time_rem);
veh_prop(0x11, veh->load_unload_time_rem & 0xFF);
veh_prop(0x12, veh->date_of_last_service);
veh_prop(0x13, veh->date_of_last_service & 0xFF);
veh_prop(0x14, veh->service_interval);
veh_prop(0x15, veh->service_interval & 0xFF);
veh_prop(0x16, veh->last_station_visited);
veh_prop(0x17, veh->tick_counter);
veh_prop(0x18, veh->max_speed);
veh_prop(0x19, veh->max_speed & 0xFF);
veh_prop(0x1F, veh->direction);
veh_prop(0x28, veh->cur_image);
veh_prop(0x29, veh->cur_image & 0xFF);
veh_prop(0x32, veh->vehstatus);
veh_prop(0x33, veh->vehstatus);
veh_prop(0x34, veh->cur_speed);
veh_prop(0x35, veh->cur_speed & 0xFF);
veh_prop(0x36, veh->subspeed);
veh_prop(0x37, veh->acceleration);
veh_prop(0x39, veh->cargo_type);
veh_prop(0x3A, veh->cargo_cap);
veh_prop(0x3B, veh->cargo_cap & 0xFF);
veh_prop(0x3C, veh->cargo_count);
veh_prop(0x3D, veh->cargo_count & 0xFF);
veh_prop(0x3E, veh->cargo_source); // Probably useless; so what
veh_prop(0x3F, veh->cargo_days);
veh_prop(0x40, veh->age);
veh_prop(0x41, veh->age & 0xFF);
veh_prop(0x42, veh->max_age);
veh_prop(0x43, veh->max_age & 0xFF);
veh_prop(0x44, veh->build_year);
veh_prop(0x45, veh->unitnumber);
veh_prop(0x46, veh->engine_type);
veh_prop(0x47, veh->engine_type & 0xFF);
veh_prop(0x48, veh->spritenum);
veh_prop(0x49, veh->day_counter);
veh_prop(0x4A, veh->breakdowns_since_last_service);
veh_prop(0x4B, veh->breakdown_ctr);
veh_prop(0x4C, veh->breakdown_delay);
veh_prop(0x4D, veh->breakdown_chance);
veh_prop(0x4E, veh->reliability);
veh_prop(0x4F, veh->reliability & 0xFF);
veh_prop(0x50, veh->reliability_spd_dec);
veh_prop(0x51, veh->reliability_spd_dec & 0xFF);
veh_prop(0x52, veh->profit_this_year);
veh_prop(0x53, veh->profit_this_year & 0xFFFFFF);
veh_prop(0x54, veh->profit_this_year & 0xFFFF);
veh_prop(0x55, veh->profit_this_year & 0xFF);
veh_prop(0x56, veh->profit_last_year);
veh_prop(0x57, veh->profit_last_year & 0xFF);
veh_prop(0x58, veh->profit_last_year);
veh_prop(0x59, veh->profit_last_year & 0xFF);
veh_prop(0x5A, veh->next == NULL ? INVALID_VEHICLE : veh->next->index);
veh_prop(0x5C, veh->value);
veh_prop(0x5D, veh->value & 0xFFFFFF);
veh_prop(0x5E, veh->value & 0xFFFF);
veh_prop(0x5F, veh->value & 0xFF);
veh_prop(0x60, veh->string_id);
veh_prop(0x61, veh->string_id & 0xFF);
/* 00h..07h=sub image? 40h=in tunnel; actually some kind of status
* aircraft: >=13h when in flight
* train, ship: 80h=in depot
* rv: 0feh=in depot */
/* TODO veh_prop(0x62, veh->???); */
/* TODO: The rest is per-vehicle, I hope no GRF file looks so far.
* But they won't let us have an easy ride so surely *some* GRF
* file does. So someone needs to do this too. --pasky */
#undef veh_prop
}
}
}
target = value != -1 ? EvalDeterministicSpriteGroup(dsg, value) : dsg->default_group;
//debug("Resolved variable %x: %d, %p", dsg->variable, value, callback);
return resolve_func(target, veh, callback_info, resolve_func);
}
case SGT_RANDOMIZED: {
RandomizedSpriteGroup *rsg = &spritegroup->g.random;
if (veh == NULL) {
/* Purchase list of something. Show the first one. */
assert(rsg->num_groups > 0);
//debug("going for %p: %d", rsg->groups[0], rsg->groups[0].type);
return resolve_func(&rsg->groups[0], NULL, callback_info, resolve_func);
}
if (rsg->var_scope == VSG_SCOPE_PARENT) {
/* First engine in the vehicle chain */
if (veh->type == VEH_Train)
veh = GetFirstVehicleInChain(veh);
}
return resolve_func(EvalRandomizedSpriteGroup(rsg, veh->random_bits), veh, callback_info, resolve_func);
}
default:
error("I don't know how to handle such a spritegroup %d!", spritegroup->type);
return NULL;
}
}
static SpriteGroup *GetVehicleSpriteGroup(byte engine, const Vehicle *v)
{
SpriteGroup *group;
byte cargo = GC_PURCHASE;
if (v != NULL) {
cargo = _global_cargo_id[_opt.landscape][v->cargo_type];
assert(cargo != GC_INVALID);
}
group = &_engine_custom_sprites[engine][cargo];
if (v != NULL && v->type == VEH_Train) {
SpriteGroup *overset = GetWagonOverrideSpriteSet(engine, v->u.rail.first_engine);
if (overset != NULL) group = overset;
}
return group;
}
int GetCustomEngineSprite(byte engine, const Vehicle *v, byte direction)
{
SpriteGroup *group;
RealSpriteGroup *rsg;
byte cargo = GC_PURCHASE;
byte loaded = 0;
bool in_motion = 0;
int totalsets, spriteset;
int r;
if (v != NULL) {
int capacity = v->cargo_cap;
cargo = _global_cargo_id[_opt.landscape][v->cargo_type];
assert(cargo != GC_INVALID);
if (capacity == 0) capacity = 1;
loaded = (v->cargo_count * 100) / capacity;
in_motion = (v->cur_speed != 0);
}
group = GetVehicleSpriteGroup(engine, v);
group = ResolveVehicleSpriteGroup(group, v, 0, (resolve_callback) ResolveVehicleSpriteGroup);
if (group->type == SGT_REAL && group->g.real.sprites_per_set == 0 && cargo != GC_DEFAULT) {
// This group is empty but perhaps there'll be a default one.
group = ResolveVehicleSpriteGroup(&_engine_custom_sprites[engine][GC_DEFAULT], v, 0,
(resolve_callback) ResolveVehicleSpriteGroup);
}
assert(group->type == SGT_REAL);
rsg = &group->g.real;
if (!rsg->sprites_per_set) {
// This group is empty. This function users should therefore
// look up the sprite number in _engine_original_sprites.
return 0;
}
assert(rsg->sprites_per_set <= 8);
direction %= rsg->sprites_per_set;
totalsets = in_motion ? rsg->loaded_count : rsg->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 ? rsg->loaded[spriteset] : rsg->loading[spriteset]) + direction;
return r;
}
/**
* Check if a wagon is currently using a wagon override
* @param v The wagon to check
* @return true if it is using an override, false otherwise
*/
bool UsesWagonOverride(const Vehicle *v) {
assert(v->type == VEH_Train);
return (GetWagonOverrideSpriteSet(v->engine_type, v->u.rail.first_engine) != NULL);
}
/**
* Evaluates a newgrf callback
* @param callback_info info about which callback to evaluate
* (bit 0-7) = CallBack id of the callback to use, see CallBackId enum
* (bit 8-15) = Other info some callbacks need to have, callback specific, see CallBackId enum, not used yet
* @param engine Engine type of the vehicle to evaluate the callback for
* @param vehicle The vehicle to evaluate the callback for, NULL if it doesnt exist (yet)
* @return The value the callback returned, or CALLBACK_FAILED if it failed
*/
uint16 GetCallBackResult(uint16 callback_info, byte engine, const Vehicle *v)
{
SpriteGroup *group;
byte cargo = GC_DEFAULT;
if (v != NULL)
cargo = _global_cargo_id[_opt.landscape][v->cargo_type];
group = &_engine_custom_sprites[engine][cargo];
if (v != NULL && v->type == VEH_Train) {
SpriteGroup *overset = GetWagonOverrideSpriteSet(engine, v->u.rail.first_engine);
if (overset != NULL) group = overset;
}
group = ResolveVehicleSpriteGroup(group, v, callback_info, (resolve_callback) ResolveVehicleSpriteGroup);
if (group->type == SGT_REAL && group->g.real.sprites_per_set == 0 && cargo != GC_DEFAULT) {
// This group is empty but perhaps there'll be a default one.
group = ResolveVehicleSpriteGroup(&_engine_custom_sprites[engine][GC_DEFAULT], v, callback_info,
(resolve_callback) ResolveVehicleSpriteGroup);
}
if (group->type != SGT_CALLBACK)
return CALLBACK_FAILED;
return group->g.callback.result;
}
// Global variables are evil, yes, but we would end up with horribly overblown
// calling convention otherwise and this should be 100% reentrant.
static byte _vsg_random_triggers;
static byte _vsg_bits_to_reseed;
extern int _custom_sprites_base;
static SpriteGroup *TriggerVehicleSpriteGroup(SpriteGroup *spritegroup,
Vehicle *veh, uint16 callback_info, resolve_callback resolve_func)
{
if (spritegroup->type == SGT_RANDOMIZED) {
_vsg_bits_to_reseed |= RandomizedSpriteGroupTriggeredBits(
&spritegroup->g.random,
_vsg_random_triggers,
&veh->waiting_triggers
);
}
return ResolveVehicleSpriteGroup(spritegroup, veh, callback_info, resolve_func);
}
static void DoTriggerVehicle(Vehicle *veh, VehicleTrigger trigger, byte base_random_bits, bool first)
{
SpriteGroup *group;
RealSpriteGroup *rsg;
byte new_random_bits;
_vsg_random_triggers = trigger;
_vsg_bits_to_reseed = 0;
group = TriggerVehicleSpriteGroup(GetVehicleSpriteGroup(veh->engine_type, veh), veh, 0,
(resolve_callback) TriggerVehicleSpriteGroup);
if (group->type == SGT_REAL && group->g.real.sprites_per_set == 0 && veh->cargo_type != GC_DEFAULT) {
// This group turned out to be empty but perhaps there'll be a default one.
group = TriggerVehicleSpriteGroup(&_engine_custom_sprites[veh->engine_type][GC_DEFAULT], veh, 0,
(resolve_callback) TriggerVehicleSpriteGroup);
}
assert(group->type == SGT_REAL);
rsg = &group->g.real;
new_random_bits = Random();
veh->random_bits &= ~_vsg_bits_to_reseed;
veh->random_bits |= (first ? new_random_bits : base_random_bits) & _vsg_bits_to_reseed;
switch (trigger) {
case VEHICLE_TRIGGER_NEW_CARGO:
/* All vehicles in chain get ANY_NEW_CARGO trigger now.
* So we call it for the first one and they will recurse. */
/* Indexing part of vehicle random bits needs to be
* same for all triggered vehicles in the chain (to get
* all the random-cargo wagons carry the same cargo,
* i.e.), so we give them all the NEW_CARGO triggered
* vehicle's portion of random bits. */
assert(first);
DoTriggerVehicle(GetFirstVehicleInChain(veh), VEHICLE_TRIGGER_ANY_NEW_CARGO, new_random_bits, false);
break;
case VEHICLE_TRIGGER_DEPOT:
/* We now trigger the next vehicle in chain recursively.
* The random bits portions may be different for each
* vehicle in chain. */
if (veh->next != NULL)
DoTriggerVehicle(veh->next, trigger, 0, true);
break;
case VEHICLE_TRIGGER_EMPTY:
/* We now trigger the next vehicle in chain
* recursively. The random bits portions must be same
* for each vehicle in chain, so we give them all
* first chained vehicle's portion of random bits. */
if (veh->next != NULL)
DoTriggerVehicle(veh->next, trigger, first ? new_random_bits : base_random_bits, false);
break;
case VEHICLE_TRIGGER_ANY_NEW_CARGO:
/* Now pass the trigger recursively to the next vehicle
* in chain. */
assert(!first);
if (veh->next != NULL)
DoTriggerVehicle(veh->next, VEHICLE_TRIGGER_ANY_NEW_CARGO, base_random_bits, false);
break;
}
}
void TriggerVehicle(Vehicle *veh, VehicleTrigger trigger)
{
DoTriggerVehicle(veh, trigger, 0, true);
}
static char *_engine_custom_names[TOTAL_NUM_ENGINES];
void SetCustomEngineName(int engine, const char *name)
{
_engine_custom_names[engine] = strdup(name);
}
void UnInitNewgrEngines(void)
{
char **i;
for (i = _engine_custom_names; i != endof(_engine_custom_names); i++) {
free(*i);
*i = NULL;
}
}
StringID GetCustomEngineName(int engine)
{
if (!_engine_custom_names[engine])
return _engine_name_strings[engine];
strncpy(_userstring, _engine_custom_names[engine], USERSTRING_LEN);
_userstring[USERSTRING_LEN - 1] = '\0';
return STR_SPEC_USERSTRING;
}
void AcceptEnginePreview(Engine *e, PlayerID player)
{
Player *p = GetPlayer(player);
SETBIT(e->player_avail, player);
UPDATE_PLAYER_RAILTYPE(e, p);
e->preview_player = 0xFF;
InvalidateWindowClasses(WC_BUILD_VEHICLE);
InvalidateWindowClasses(WC_REPLACE_VEHICLE);
}
static PlayerID GetBestPlayer(PlayerID pp)
{
const Player *p;
int32 best_hist;
PlayerID best_player;
uint 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 == (PlayerID)-1) return -1;
SETBIT(mask, best_player);
} while (--pp != 0);
return best_player;
}
void EnginesDailyLoop(void)
{
Engine *e;
int i;
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_player != 0xFF && !--e->preview_wait) {
e->flags &= ~ENGINE_PREVIEWING;
DeleteWindowById(WC_ENGINE_PREVIEW, i);
e->preview_player++;
}
} else if (e->preview_player != 0xFF) {
PlayerID best_player = GetBestPlayer(e->preview_player);
if (best_player == (PlayerID)-1) {
e->preview_player = 0xFF;
continue;
}
if (!IS_HUMAN_PLAYER(best_player)) {
/* XXX - 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);
}
}
}
}
}
/** Accept an engine prototype. XXX - it is possible that the top-player
* changes while you are waiting to accept the offer? Then it becomes invalid
* @param x,y unused
* @param p1 engine-prototype offered
* @param p2 unused
*/
int32 CmdWantEnginePreview(int x, int y, uint32 flags, uint32 p1, uint32 p2)
{
Engine *e;
if (!IsEngineIndex(p1)) return CMD_ERROR;
e = GetEngine(p1);
if (GetBestPlayer(e->preview_player) != _current_player) return CMD_ERROR;
if (flags & DC_EXEC)
AcceptEnginePreview(e, _current_player);
return 0;
}
// Determine if an engine type is a wagon (and not a loco)
static bool IsWagon(byte index)
{
return index < NUM_TRAIN_ENGINES && RailVehInfo(index)->flags & RVI_WAGON;
}
static 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) {
uint block_preview = p->block_preview;
if (!HASBIT(e->player_avail,p->index))
continue;
/* We assume the user did NOT build it.. prove me wrong ;) */
p->block_preview = 20;
FOR_ALL_VEHICLES(v) {
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) {
/* The user did prove me wrong, so restore old value */
p->block_preview = block_preview;
break;
}
}
}
}
}
e->flags = (e->flags & ~ENGINE_INTRODUCING) | ENGINE_AVAILABLE;
InvalidateWindowClasses(WC_BUILD_VEHICLE);
InvalidateWindowClasses(WC_REPLACE_VEHICLE);
// Now available for all players
e->player_avail = (byte)-1;
// Do not introduce new rail wagons
if (IsWagon(index))
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(void)
{
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;
// Do not introduce new rail wagons
if (!IsWagon(e - _engines))
e->preview_player = 1; // Give to the player with the highest rating.
}
}
}
AdjustAvailAircraft();
}
/** Rename an engine.
* @param x,y unused
* @param p1 engine ID to rename
* @param p2 unused
*/
int32 CmdRenameEngine(int x, int y, uint32 flags, uint32 p1, uint32 p2)
{
StringID str;
if (!IsEngineIndex(p1) || _cmd_text[0] == '\0') return CMD_ERROR;
str = AllocateNameUnique(_cmd_text, 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 SaveLoad _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(void)
{
Engine *e;
int i;
for(i=0,e=_engines; i != lengthof(_engines); i++,e++) {
SlSetArrayIndex(i);
SlObject(e, _engine_desc);
}
}
static void Load_ENGN(void)
{
int index;
while ((index = SlIterateArray()) != -1) {
SlObject(GetEngine(index), _engine_desc);
}
}
static void LoadSave_ENGS(void)
{
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},
};
/*
* returns true if an engine is valid, of the specified type, and buildable by
* the current player, false otherwise
*
* engine = index of the engine to check
* type = the type the engine should be of (VEH_xxx)
*/
bool IsEngineBuildable(uint engine, byte type)
{
const Engine *e;
// check if it's an engine that is in the engine array
if (!IsEngineIndex(engine)) return false;
e = GetEngine(engine);
// check if it's an engine of specified type
if (e->type != type) return false;
// check if it's available
if (!HASBIT(e->player_avail, _current_player)) return false;
return true;
}
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