00001
00002
00003
00004
00005
00006
00007
00008
00009
00012 #include "stdafx.h"
00013 #include "train.h"
00014 #include "roadveh.h"
00015 #include "vehicle_func.h"
00016 #include "engine_func.h"
00017
00018 #include "table/strings.h"
00019 #include "table/sprites.h"
00020
00021 static const uint MAX_ARTICULATED_PARTS = 100;
00022
00031 static EngineID GetNextArticulatedPart(uint index, EngineID front_type, Vehicle *front = NULL, bool *mirrored = NULL)
00032 {
00033 assert(front == NULL || front->engine_type == front_type);
00034
00035 uint16 callback = GetVehicleCallback(CBID_VEHICLE_ARTIC_ENGINE, index, 0, front_type, front);
00036 if (callback == CALLBACK_FAILED || GB(callback, 0, 8) == 0xFF) return INVALID_ENGINE;
00037
00038 if (mirrored != NULL) *mirrored = HasBit(callback, 7);
00039 return GetNewEngineID(GetEngineGRF(front_type), Engine::Get(front_type)->type, GB(callback, 0, 7));
00040 }
00041
00042 uint CountArticulatedParts(EngineID engine_type, bool purchase_window)
00043 {
00044 if (!HasBit(EngInfo(engine_type)->callback_mask, CBM_VEHICLE_ARTIC_ENGINE)) return 0;
00045
00046
00047
00048 if (!Vehicle::CanAllocateItem()) return 0;
00049
00050 Vehicle *v = NULL;
00051 if (!purchase_window) {
00052 v = new Vehicle();
00053 v->engine_type = engine_type;
00054 }
00055
00056 uint i;
00057 for (i = 1; i < MAX_ARTICULATED_PARTS; i++) {
00058 if (GetNextArticulatedPart(i, engine_type, v) == INVALID_ENGINE) break;
00059 }
00060
00061 delete v;
00062
00063 return i - 1;
00064 }
00065
00066
00073 static inline uint16 GetVehicleDefaultCapacity(EngineID engine, CargoID *cargo_type)
00074 {
00075 const Engine *e = Engine::Get(engine);
00076 CargoID cargo = (e->CanCarryCargo() ? e->GetDefaultCargoType() : (CargoID)CT_INVALID);
00077 if (cargo_type != NULL) *cargo_type = cargo;
00078 if (cargo == CT_INVALID) return 0;
00079 return e->GetDisplayDefaultCapacity();
00080 }
00081
00088 static inline uint32 GetAvailableVehicleCargoTypes(EngineID engine, bool include_initial_cargo_type)
00089 {
00090 uint32 cargos = 0;
00091 CargoID initial_cargo_type;
00092
00093 if (GetVehicleDefaultCapacity(engine, &initial_cargo_type) > 0) {
00094 const EngineInfo *ei = EngInfo(engine);
00095 cargos = ei->refit_mask;
00096 if (include_initial_cargo_type && initial_cargo_type < NUM_CARGO) SetBit(cargos, initial_cargo_type);
00097 }
00098
00099 return cargos;
00100 }
00101
00102 CargoArray GetCapacityOfArticulatedParts(EngineID engine)
00103 {
00104 CargoArray capacity;
00105 const Engine *e = Engine::Get(engine);
00106
00107 CargoID cargo_type;
00108 uint16 cargo_capacity = GetVehicleDefaultCapacity(engine, &cargo_type);
00109 if (cargo_type < NUM_CARGO) capacity[cargo_type] = cargo_capacity;
00110
00111 if (!e->IsGroundVehicle()) return capacity;
00112
00113 if (!HasBit(e->info.callback_mask, CBM_VEHICLE_ARTIC_ENGINE)) return capacity;
00114
00115 for (uint i = 1; i < MAX_ARTICULATED_PARTS; i++) {
00116 EngineID artic_engine = GetNextArticulatedPart(i, engine);
00117 if (artic_engine == INVALID_ENGINE) break;
00118
00119 cargo_capacity = GetVehicleDefaultCapacity(artic_engine, &cargo_type);
00120 if (cargo_type < NUM_CARGO) capacity[cargo_type] += cargo_capacity;
00121 }
00122
00123 return capacity;
00124 }
00125
00131 bool IsArticulatedVehicleRefittable(EngineID engine)
00132 {
00133 if (IsEngineRefittable(engine)) return true;
00134
00135 const Engine *e = Engine::Get(engine);
00136 if (!e->IsGroundVehicle()) return false;
00137
00138 if (!HasBit(e->info.callback_mask, CBM_VEHICLE_ARTIC_ENGINE)) return false;
00139
00140 for (uint i = 1; i < MAX_ARTICULATED_PARTS; i++) {
00141 EngineID artic_engine = GetNextArticulatedPart(i, engine);
00142 if (artic_engine == INVALID_ENGINE) break;
00143
00144 if (IsEngineRefittable(artic_engine)) return true;
00145 }
00146
00147 return false;
00148 }
00149
00157 void GetArticulatedRefitMasks(EngineID engine, bool include_initial_cargo_type, uint32 *union_mask, uint32 *intersection_mask)
00158 {
00159 const Engine *e = Engine::Get(engine);
00160 uint32 veh_cargos = GetAvailableVehicleCargoTypes(engine, include_initial_cargo_type);
00161 *union_mask = veh_cargos;
00162 *intersection_mask = (veh_cargos != 0) ? veh_cargos : UINT32_MAX;
00163
00164 if (!e->IsGroundVehicle()) return;
00165 if (!HasBit(e->info.callback_mask, CBM_VEHICLE_ARTIC_ENGINE)) return;
00166
00167 for (uint i = 1; i < MAX_ARTICULATED_PARTS; i++) {
00168 EngineID artic_engine = GetNextArticulatedPart(i, engine);
00169 if (artic_engine == INVALID_ENGINE) break;
00170
00171 veh_cargos = GetAvailableVehicleCargoTypes(artic_engine, include_initial_cargo_type);
00172 *union_mask |= veh_cargos;
00173 if (veh_cargos != 0) *intersection_mask &= veh_cargos;
00174 }
00175 }
00176
00183 uint32 GetUnionOfArticulatedRefitMasks(EngineID engine, bool include_initial_cargo_type)
00184 {
00185 uint32 union_mask, intersection_mask;
00186 GetArticulatedRefitMasks(engine, include_initial_cargo_type, &union_mask, &intersection_mask);
00187 return union_mask;
00188 }
00189
00196 uint32 GetIntersectionOfArticulatedRefitMasks(EngineID engine, bool include_initial_cargo_type)
00197 {
00198 uint32 union_mask, intersection_mask;
00199 GetArticulatedRefitMasks(engine, include_initial_cargo_type, &union_mask, &intersection_mask);
00200 return intersection_mask;
00201 }
00202
00203
00211 bool IsArticulatedVehicleCarryingDifferentCargos(const Vehicle *v, CargoID *cargo_type)
00212 {
00213 CargoID first_cargo = CT_INVALID;
00214
00215 do {
00216 if (v->cargo_cap > 0 && v->cargo_type != CT_INVALID) {
00217 if (first_cargo == CT_INVALID) first_cargo = v->cargo_type;
00218 if (first_cargo != v->cargo_type) {
00219 if (cargo_type != NULL) *cargo_type = CT_INVALID;
00220 return true;
00221 }
00222 }
00223
00224 v = v->HasArticulatedPart() ? v->GetNextArticulatedPart() : NULL;
00225 } while (v != NULL);
00226
00227 if (cargo_type != NULL) *cargo_type = first_cargo;
00228 return false;
00229 }
00230
00239 void CheckConsistencyOfArticulatedVehicle(const Vehicle *v)
00240 {
00241 const Engine *engine = Engine::Get(v->engine_type);
00242
00243 uint32 purchase_refit_union, purchase_refit_intersection;
00244 GetArticulatedRefitMasks(v->engine_type, true, &purchase_refit_union, &purchase_refit_intersection);
00245 CargoArray purchase_default_capacity = GetCapacityOfArticulatedParts(v->engine_type);
00246
00247 uint32 real_refit_union = 0;
00248 uint32 real_refit_intersection = UINT_MAX;
00249 CargoArray real_default_capacity;
00250
00251 do {
00252 uint32 refit_mask = GetAvailableVehicleCargoTypes(v->engine_type, true);
00253 real_refit_union |= refit_mask;
00254 if (refit_mask != 0) real_refit_intersection &= refit_mask;
00255
00256 assert(v->cargo_type < NUM_CARGO);
00257 real_default_capacity[v->cargo_type] += v->cargo_cap;
00258
00259 v = v->HasArticulatedPart() ? v->GetNextArticulatedPart() : NULL;
00260 } while (v != NULL);
00261
00262
00263 bool carries_more = false;
00264 for (CargoID cid = 0; cid < NUM_CARGO; cid++) {
00265 if (real_default_capacity[cid] != 0 && purchase_default_capacity[cid] == 0) {
00266 carries_more = true;
00267 break;
00268 }
00269 }
00270
00271
00272 if (real_refit_union != purchase_refit_union || real_refit_intersection != purchase_refit_intersection || carries_more) {
00273 ShowNewGrfVehicleError(engine->index, STR_NEWGRF_BUGGY, STR_NEWGRF_BUGGY_ARTICULATED_CARGO, GBUG_VEH_REFIT, false);
00274 }
00275 }
00276
00277 void AddArticulatedParts(Vehicle *first)
00278 {
00279 VehicleType type = first->type;
00280 if (!HasBit(EngInfo(first->engine_type)->callback_mask, CBM_VEHICLE_ARTIC_ENGINE)) return;
00281
00282 Vehicle *v = first;
00283 for (uint i = 1; i < MAX_ARTICULATED_PARTS; i++) {
00284 bool flip_image;
00285 EngineID engine_type = GetNextArticulatedPart(i, first->engine_type, first, &flip_image);
00286 if (engine_type == INVALID_ENGINE) return;
00287
00288
00289
00290 if (!Vehicle::CanAllocateItem()) return;
00291
00292 GroundVehicleCache *gcache = v->GetGroundVehicleCache();
00293 gcache->first_engine = v->engine_type;
00294
00295 const Engine *e_artic = Engine::Get(engine_type);
00296 switch (type) {
00297 default: NOT_REACHED();
00298
00299 case VEH_TRAIN: {
00300 Train *front = Train::From(first);
00301 Train *t = new Train();
00302 v->SetNext(t);
00303 v = t;
00304
00305 t->subtype = 0;
00306 t->track = front->track;
00307 t->railtype = front->railtype;
00308
00309 t->spritenum = e_artic->u.rail.image_index;
00310 if (e_artic->CanCarryCargo()) {
00311 t->cargo_type = e_artic->GetDefaultCargoType();
00312 t->cargo_cap = e_artic->u.rail.capacity;
00313 } else {
00314 t->cargo_type = front->cargo_type;
00315 t->cargo_cap = 0;
00316 }
00317
00318 t->SetArticulatedPart();
00319 break;
00320 }
00321
00322 case VEH_ROAD: {
00323 RoadVehicle *front = RoadVehicle::From(first);
00324 RoadVehicle *rv = new RoadVehicle();
00325 v->SetNext(rv);
00326 v = rv;
00327
00328 rv->subtype = 0;
00329 gcache->cached_veh_length = 8;
00330 rv->state = RVSB_IN_DEPOT;
00331
00332 rv->roadtype = front->roadtype;
00333 rv->compatible_roadtypes = front->compatible_roadtypes;
00334
00335 rv->spritenum = e_artic->u.road.image_index;
00336 if (e_artic->CanCarryCargo()) {
00337 rv->cargo_type = e_artic->GetDefaultCargoType();
00338 rv->cargo_cap = e_artic->u.road.capacity;
00339 } else {
00340 rv->cargo_type = front->cargo_type;
00341 rv->cargo_cap = 0;
00342 }
00343
00344 rv->SetArticulatedPart();
00345 break;
00346 }
00347 }
00348
00349
00350 v->direction = first->direction;
00351 v->owner = first->owner;
00352 v->tile = first->tile;
00353 v->x_pos = first->x_pos;
00354 v->y_pos = first->y_pos;
00355 v->z_pos = first->z_pos;
00356 v->build_year = first->build_year;
00357 v->vehstatus = first->vehstatus & ~VS_STOPPED;
00358
00359 v->cargo_subtype = 0;
00360 v->max_age = 0;
00361 v->engine_type = engine_type;
00362 v->value = 0;
00363 v->cur_image = SPR_IMG_QUERY;
00364 v->random_bits = VehicleRandomBits();
00365
00366 if (flip_image) v->spritenum++;
00367
00368 VehicleMove(v, false);
00369 }
00370 }