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Location: cpp/openttd-patchpack/source/src/articulated_vehicles.cpp - annotation
r11679:85c8ce63beba
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(svn r16069) -Update: WebTranslator2 update to 2009-04-16 17:52:36
brazilian_portuguese - 12 fixed by tucalipe (12)
korean - 8 fixed by darkttd (8)
slovenian - 10 fixed by Necrolyte (10)
brazilian_portuguese - 12 fixed by tucalipe (12)
korean - 8 fixed by darkttd (8)
slovenian - 10 fixed by Necrolyte (10)
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/** @file articulated_vehicles.cpp Implementation of articulated vehicles. */
#include "stdafx.h"
#include "train.h"
#include "roadveh.h"
#include "newgrf_engine.h"
#include "vehicle_func.h"
#include "table/strings.h"
static const uint MAX_ARTICULATED_PARTS = 100; ///< Maximum of articulated parts per vehicle, i.e. when to abort calling the articulated vehicle callback.
uint CountArticulatedParts(EngineID engine_type, bool purchase_window)
{
if (!HasBit(EngInfo(engine_type)->callbackmask, CBM_VEHICLE_ARTIC_ENGINE)) return 0;
/* If we can't allocate a vehicle now, we can't allocate it in the command
* either, so it doesn't matter how many articulated parts there are. */
if (!Vehicle::CanAllocateItem()) return 0;
Vehicle *v = NULL;;
if (!purchase_window) {
v = new InvalidVehicle();
v->engine_type = engine_type;
}
uint i;
for (i = 1; i < MAX_ARTICULATED_PARTS; i++) {
uint16 callback = GetVehicleCallback(CBID_VEHICLE_ARTIC_ENGINE, i, 0, engine_type, v);
if (callback == CALLBACK_FAILED || GB(callback, 0, 8) == 0xFF) break;
}
delete v;
return i - 1;
}
/**
* Returns the default (non-refitted) capacity of a specific EngineID.
* @param engine the EngineID of iterest
* @param type the type of the engine
* @param cargo_type returns the default cargo type, if needed
* @return capacity
*/
static inline uint16 GetVehicleDefaultCapacity(EngineID engine, VehicleType type, CargoID *cargo_type)
{
const Engine *e = GetEngine(engine);
CargoID cargo = (e->CanCarryCargo() ? e->GetDefaultCargoType() : (CargoID)CT_INVALID);
if (cargo_type != NULL) *cargo_type = cargo;
if (cargo == CT_INVALID) return 0;
return e->GetDisplayDefaultCapacity();
}
/**
* Returns all cargos a vehicle can carry.
* @param engine the EngineID of iterest
* @param type the type of the engine
* @param include_initial_cargo_type if true the default cargo type of the vehicle is included; if false only the refit_mask
* @return bit set of CargoIDs
*/
static inline uint32 GetAvailableVehicleCargoTypes(EngineID engine, VehicleType type, bool include_initial_cargo_type)
{
uint32 cargos = 0;
CargoID initial_cargo_type;
if (GetVehicleDefaultCapacity(engine, type, &initial_cargo_type) > 0) {
if (type != VEH_SHIP || ShipVehInfo(engine)->refittable) {
const EngineInfo *ei = EngInfo(engine);
cargos = ei->refit_mask;
}
if (include_initial_cargo_type && initial_cargo_type < NUM_CARGO) SetBit(cargos, initial_cargo_type);
}
return cargos;
}
uint16 *GetCapacityOfArticulatedParts(EngineID engine, VehicleType type)
{
static uint16 capacity[NUM_CARGO];
memset(capacity, 0, sizeof(capacity));
CargoID cargo_type;
uint16 cargo_capacity = GetVehicleDefaultCapacity(engine, type, &cargo_type);
if (cargo_type < NUM_CARGO) capacity[cargo_type] = cargo_capacity;
if (type != VEH_TRAIN && type != VEH_ROAD) return capacity;
if (!HasBit(EngInfo(engine)->callbackmask, CBM_VEHICLE_ARTIC_ENGINE)) return capacity;
for (uint i = 1; i < MAX_ARTICULATED_PARTS; i++) {
uint16 callback = GetVehicleCallback(CBID_VEHICLE_ARTIC_ENGINE, i, 0, engine, NULL);
if (callback == CALLBACK_FAILED || GB(callback, 0, 8) == 0xFF) break;
EngineID artic_engine = GetNewEngineID(GetEngineGRF(engine), type, GB(callback, 0, 7));
cargo_capacity = GetVehicleDefaultCapacity(artic_engine, type, &cargo_type);
if (cargo_type < NUM_CARGO) capacity[cargo_type] += cargo_capacity;
}
return capacity;
}
/**
* Checks whether any of the articulated parts is refittable
* @param engine the first part
* @return true if refittable
*/
bool IsArticulatedVehicleRefittable(EngineID engine)
{
if (IsEngineRefittable(engine)) return true;
const Engine *e = GetEngine(engine);
if (e->type != VEH_TRAIN && e->type != VEH_ROAD) return false;
if (!HasBit(e->info.callbackmask, CBM_VEHICLE_ARTIC_ENGINE)) return false;
for (uint i = 1; i < MAX_ARTICULATED_PARTS; i++) {
uint16 callback = GetVehicleCallback(CBID_VEHICLE_ARTIC_ENGINE, i, 0, engine, NULL);
if (callback == CALLBACK_FAILED || GB(callback, 0, 8) == 0xFF) break;
EngineID artic_engine = GetNewEngineID(GetEngineGRF(engine), e->type, GB(callback, 0, 7));
if (IsEngineRefittable(artic_engine)) return true;
}
return false;
}
/**
* Ors the refit_masks of all articulated parts.
* @param engine the first part
* @param type the vehicle type
* @param include_initial_cargo_type if true the default cargo type of the vehicle is included; if false only the refit_mask
* @return bit mask of CargoIDs which are a refit option for at least one articulated part
*/
uint32 GetUnionOfArticulatedRefitMasks(EngineID engine, VehicleType type, bool include_initial_cargo_type)
{
uint32 cargos = GetAvailableVehicleCargoTypes(engine, type, include_initial_cargo_type);
if (type != VEH_TRAIN && type != VEH_ROAD) return cargos;
if (!HasBit(EngInfo(engine)->callbackmask, CBM_VEHICLE_ARTIC_ENGINE)) return cargos;
for (uint i = 1; i < MAX_ARTICULATED_PARTS; i++) {
uint16 callback = GetVehicleCallback(CBID_VEHICLE_ARTIC_ENGINE, i, 0, engine, NULL);
if (callback == CALLBACK_FAILED || GB(callback, 0, 8) == 0xFF) break;
EngineID artic_engine = GetNewEngineID(GetEngineGRF(engine), type, GB(callback, 0, 7));
cargos |= GetAvailableVehicleCargoTypes(artic_engine, type, include_initial_cargo_type);
}
return cargos;
}
/**
* Ands the refit_masks of all articulated parts.
* @param engine the first part
* @param type the vehicle type
* @param include_initial_cargo_type if true the default cargo type of the vehicle is included; if false only the refit_mask
* @return bit mask of CargoIDs which are a refit option for every articulated part (with default capacity > 0)
*/
uint32 GetIntersectionOfArticulatedRefitMasks(EngineID engine, VehicleType type, bool include_initial_cargo_type)
{
uint32 cargos = UINT32_MAX;
uint32 veh_cargos = GetAvailableVehicleCargoTypes(engine, type, include_initial_cargo_type);
if (veh_cargos != 0) cargos &= veh_cargos;
if (type != VEH_TRAIN && type != VEH_ROAD) return cargos;
if (!HasBit(EngInfo(engine)->callbackmask, CBM_VEHICLE_ARTIC_ENGINE)) return cargos;
for (uint i = 1; i < MAX_ARTICULATED_PARTS; i++) {
uint16 callback = GetVehicleCallback(CBID_VEHICLE_ARTIC_ENGINE, i, 0, engine, NULL);
if (callback == CALLBACK_FAILED || GB(callback, 0, 8) == 0xFF) break;
EngineID artic_engine = GetNewEngineID(GetEngineGRF(engine), type, GB(callback, 0, 7));
veh_cargos = GetAvailableVehicleCargoTypes(artic_engine, type, include_initial_cargo_type);
if (veh_cargos != 0) cargos &= veh_cargos;
}
return cargos;
}
/**
* Tests if all parts of an articulated vehicle are refitted to the same cargo.
* Note: Vehicles not carrying anything are ignored
* @param v the first vehicle in the chain
* @param cargo_type returns the common CargoID if needed. (CT_INVALID if no part is carrying something or they are carrying different things)
* @return true if some parts are carrying different cargos, false if all parts are carrying the same (nothing is also the same)
*/
bool IsArticulatedVehicleCarryingDifferentCargos(const Vehicle *v, CargoID *cargo_type)
{
CargoID first_cargo = CT_INVALID;
do {
if (v->cargo_cap > 0 && v->cargo_type != CT_INVALID) {
if (first_cargo == CT_INVALID) first_cargo = v->cargo_type;
if (first_cargo != v->cargo_type) {
if (cargo_type != NULL) *cargo_type = CT_INVALID;
return true;
}
}
switch (v->type) {
case VEH_TRAIN:
v = (EngineHasArticPart(v) ? GetNextArticPart(v) : NULL);
break;
case VEH_ROAD:
v = (RoadVehHasArticPart(v) ? v->Next() : NULL);
break;
default:
v = NULL;
break;
}
} while (v != NULL);
if (cargo_type != NULL) *cargo_type = first_cargo;
return false;
}
/**
* Checks whether the specs of freshly build articulated vehicles are consistent with the information specified in the purchase list.
* Only essential information is checked to leave room for magic tricks/workarounds to grfcoders.
* It checks:
* For autoreplace/-renew:
* - Default cargo type (without capacity)
* - intersection and union of refit masks.
*/
void CheckConsistencyOfArticulatedVehicle(const Vehicle *v)
{
const Engine *engine = GetEngine(v->engine_type);
uint32 purchase_refit_union = GetUnionOfArticulatedRefitMasks(v->engine_type, v->type, true);
uint32 purchase_refit_intersection = GetIntersectionOfArticulatedRefitMasks(v->engine_type, v->type, true);
uint16 *purchase_default_capacity = GetCapacityOfArticulatedParts(v->engine_type, v->type);
uint32 real_refit_union = 0;
uint32 real_refit_intersection = UINT_MAX;
uint16 real_default_capacity[NUM_CARGO];
memset(real_default_capacity, 0, sizeof(real_default_capacity));
do {
uint32 refit_mask = GetAvailableVehicleCargoTypes(v->engine_type, v->type, true);
real_refit_union |= refit_mask;
if (refit_mask != 0) real_refit_intersection &= refit_mask;
assert(v->cargo_type < NUM_CARGO);
real_default_capacity[v->cargo_type] += v->cargo_cap;
switch (v->type) {
case VEH_TRAIN:
v = (EngineHasArticPart(v) ? GetNextArticPart(v) : NULL);
break;
case VEH_ROAD:
v = (RoadVehHasArticPart(v) ? v->Next() : NULL);
break;
default:
v = NULL;
break;
}
} while (v != NULL);
/* Check whether the vehicle carries more cargos than expected */
bool carries_more = false;
for (CargoID cid = 0; cid < NUM_CARGO; cid++) {
if (real_default_capacity[cid] != 0 && purchase_default_capacity[cid] == 0) {
carries_more = true;
break;
}
}
/* show a warning once for each GRF after each game load */
if (real_refit_union != purchase_refit_union || real_refit_intersection != purchase_refit_intersection || carries_more) {
ShowNewGrfVehicleError(engine->index, STR_NEWGRF_BUGGY, STR_NEWGRF_BUGGY_ARTICULATED_CARGO, GBUG_VEH_REFIT, false);
}
}
void AddArticulatedParts(Vehicle **vl, VehicleType type)
{
const Vehicle *v = vl[0];
Vehicle *u = vl[0];
if (!HasBit(EngInfo(v->engine_type)->callbackmask, CBM_VEHICLE_ARTIC_ENGINE)) return;
for (uint i = 1; i < MAX_ARTICULATED_PARTS; i++) {
uint16 callback = GetVehicleCallback(CBID_VEHICLE_ARTIC_ENGINE, i, 0, v->engine_type, v);
if (callback == CALLBACK_FAILED || GB(callback, 0, 8) == 0xFF) return;
/* Attempt to use pre-allocated vehicles until they run out. This can happen
* if the callback returns different values depending on the cargo type. */
u->SetNext(vl[i]);
if (u->Next() == NULL) return;
Vehicle *previous = u;
u = u->Next();
EngineID engine_type = GetNewEngineID(GetEngineGRF(v->engine_type), type, GB(callback, 0, 7));
bool flip_image = HasBit(callback, 7);
const Engine *e_artic = GetEngine(engine_type);
switch (type) {
default: NOT_REACHED();
case VEH_TRAIN:
u = new (u) Train();
u->subtype = 0;
previous->SetNext(u);
u->u.rail.track = v->u.rail.track;
u->u.rail.railtype = v->u.rail.railtype;
u->u.rail.first_engine = v->engine_type;
u->spritenum = e_artic->u.rail.image_index;
if (e_artic->CanCarryCargo()) {
u->cargo_type = e_artic->GetDefaultCargoType();
u->cargo_cap = e_artic->u.rail.capacity; // Callback 36 is called when the consist is finished
} else {
u->cargo_type = v->cargo_type; // Needed for livery selection
u->cargo_cap = 0;
}
SetArticulatedPart(u);
break;
case VEH_ROAD:
u = new (u) RoadVehicle();
u->subtype = 0;
previous->SetNext(u);
u->u.road.first_engine = v->engine_type;
u->u.road.cached_veh_length = 8; // Callback is called when the consist is finished
u->u.road.state = RVSB_IN_DEPOT;
u->u.road.roadtype = v->u.road.roadtype;
u->u.road.compatible_roadtypes = v->u.road.compatible_roadtypes;
u->spritenum = e_artic->u.road.image_index;
if (e_artic->CanCarryCargo()) {
u->cargo_type = e_artic->GetDefaultCargoType();
u->cargo_cap = e_artic->u.road.capacity; // Callback 36 is called when the consist is finished
} else {
u->cargo_type = v->cargo_type; // Needed for livery selection
u->cargo_cap = 0;
}
SetRoadVehArticPart(u);
break;
}
/* get common values from first engine */
u->direction = v->direction;
u->owner = v->owner;
u->tile = v->tile;
u->x_pos = v->x_pos;
u->y_pos = v->y_pos;
u->z_pos = v->z_pos;
u->build_year = v->build_year;
u->vehstatus = v->vehstatus & ~VS_STOPPED;
u->cargo_subtype = 0;
u->max_speed = 0;
u->max_age = 0;
u->engine_type = engine_type;
u->value = 0;
u->cur_image = 0xAC2;
u->random_bits = VehicleRandomBits();
if (flip_image) u->spritenum++;
VehicleMove(u, false);
}
}
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