newgrf_industries.cpp

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00001 /* $Id: newgrf_industries.cpp 22449 2011-05-13 18:04:10Z rubidium $ */
00002 
00003 /*
00004  * This file is part of OpenTTD.
00005  * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
00006  * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
00007  * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
00008  */
00009 
00012 #include "stdafx.h"
00013 #include "debug.h"
00014 #include "industry.h"
00015 #include "newgrf.h"
00016 #include "newgrf_industries.h"
00017 #include "newgrf_text.h"
00018 #include "newgrf_town.h"
00019 #include "newgrf_cargo.h"
00020 #include "window_func.h"
00021 #include "town.h"
00022 #include "company_base.h"
00023 #include "command_func.h"
00024 #include "gui.h"
00025 #include "strings_func.h"
00026 #include "core/random_func.hpp"
00027 
00028 #include "table/strings.h"
00029 
00030 static uint32 _industry_creation_random_bits;
00031 
00032 /* Since the industry IDs defined by the GRF file don't necessarily correlate
00033  * to those used by the game, the IDs used for overriding old industries must be
00034  * translated when the idustry spec is set. */
00035 IndustryOverrideManager _industry_mngr(NEW_INDUSTRYOFFSET, NUM_INDUSTRYTYPES, INVALID_INDUSTRYTYPE);
00036 IndustryTileOverrideManager _industile_mngr(NEW_INDUSTRYTILEOFFSET, NUM_INDUSTRYTILES, INVALID_INDUSTRYTILE);
00037 
00038 IndustryType MapNewGRFIndustryType(IndustryType grf_type, uint32 grf_id)
00039 {
00040   if (grf_type == IT_INVALID) return IT_INVALID;
00041   if (!HasBit(grf_type, 7)) return GB(grf_type, 0, 6);
00042 
00043   return _industry_mngr.GetID(GB(grf_type, 0, 6), grf_id);
00044 }
00045 
00054 uint32 GetIndustryIDAtOffset(TileIndex tile, const Industry *i, uint32 cur_grfid)
00055 {
00056   if (!IsTileType(tile, MP_INDUSTRY) || GetIndustryIndex(tile) != i->index) {
00057     /* No industry and/or the tile does not have the same industry as the one we match it with */
00058     return 0xFFFF;
00059   }
00060 
00061   IndustryGfx gfx = GetCleanIndustryGfx(tile);
00062   const IndustryTileSpec *indtsp = GetIndustryTileSpec(gfx);
00063 
00064   if (gfx < NEW_INDUSTRYTILEOFFSET) { // Does it belongs to an old type?
00065     /* It is an old tile.  We have to see if it's been overriden */
00066     if (indtsp->grf_prop.override == INVALID_INDUSTRYTILE) { // has it been overridden?
00067       return 0xFF << 8 | gfx; // no. Tag FF + the gfx id of that tile
00068     }
00069     /* Overriden */
00070     const IndustryTileSpec *tile_ovr = GetIndustryTileSpec(indtsp->grf_prop.override);
00071 
00072     if (tile_ovr->grf_prop.grffile->grfid == cur_grfid) {
00073       return tile_ovr->grf_prop.local_id; // same grf file
00074     } else {
00075       return 0xFFFE; // not the same grf file
00076     }
00077   }
00078   /* Not an 'old type' tile */
00079   if (indtsp->grf_prop.spritegroup[0] != NULL) { // tile has a spritegroup ?
00080     if (indtsp->grf_prop.grffile->grfid == cur_grfid) { // same industry, same grf ?
00081       return indtsp->grf_prop.local_id;
00082     } else {
00083       return 0xFFFE; // Defined in another grf file
00084     }
00085   }
00086   /* The tile has no spritegroup */
00087   return 0xFF << 8 | indtsp->grf_prop.subst_id; // so just give him the substitute
00088 }
00089 
00090 static uint32 GetClosestIndustry(TileIndex tile, IndustryType type, const Industry *current)
00091 {
00092   uint32 best_dist = UINT32_MAX;
00093   const Industry *i;
00094   FOR_ALL_INDUSTRIES(i) {
00095     if (i->type != type || i == current) continue;
00096 
00097     best_dist = min(best_dist, DistanceManhattan(tile, i->location.tile));
00098   }
00099 
00100   return best_dist;
00101 }
00102 
00113 static uint32 GetCountAndDistanceOfClosestInstance(byte param_setID, byte layout_filter, bool town_filter, const Industry *current)
00114 {
00115   uint32 GrfID = GetRegister(0x100);  
00116   IndustryType ind_index;
00117   uint32 closest_dist = UINT32_MAX;
00118   byte count = 0;
00119 
00120   /* Determine what will be the industry type to look for */
00121   switch (GrfID) {
00122     case 0:  // this is a default industry type
00123       ind_index = param_setID;
00124       break;
00125 
00126     case 0xFFFFFFFF: // current grf
00127       GrfID = GetIndustrySpec(current->type)->grf_prop.grffile->grfid;
00128       /* FALL THROUGH */
00129 
00130     default: // use the grfid specified in register 100h
00131       SetBit(param_setID, 7); // bit 7 means it is not an old type
00132       ind_index = MapNewGRFIndustryType(param_setID, GrfID);
00133       break;
00134   }
00135 
00136   /* If the industry type is invalid, there is none and the closest is far away. */
00137   if (ind_index >= NUM_INDUSTRYTYPES) return 0 | 0xFFFF;
00138 
00139   if (layout_filter == 0 && !town_filter) {
00140     /* If the filter is 0, it could be because none was specified as well as being really a 0.
00141      * In either case, just do the regular var67 */
00142     closest_dist = GetClosestIndustry(current->location.tile, ind_index, current);
00143     count = min(Industry::GetIndustryTypeCount(ind_index), UINT8_MAX); // clamp to 8 bit
00144   } else {
00145     /* Count only those who match the same industry type and layout filter
00146      * Unfortunately, we have to do it manually */
00147     const Industry *i;
00148     FOR_ALL_INDUSTRIES(i) {
00149       if (i->type == ind_index && i != current && (i->selected_layout == layout_filter || layout_filter == 0) && (!town_filter || i->town == current->town)) {
00150         closest_dist = min(closest_dist, DistanceManhattan(current->location.tile, i->location.tile));
00151         count++;
00152       }
00153     }
00154   }
00155 
00156   return count << 16 | GB(closest_dist, 0, 16);
00157 }
00158 
00167 uint32 IndustryGetVariable(const ResolverObject *object, byte variable, byte parameter, bool *available)
00168 {
00169   const Industry *industry = object->u.industry.ind;
00170   TileIndex tile = object->u.industry.tile;
00171   IndustryType type = object->u.industry.type;
00172   const IndustrySpec *indspec = GetIndustrySpec(type);
00173 
00174   /* Shall the variable get resolved in parent scope and are we not yet in parent scope? */
00175   if (object->u.industry.gfx == INVALID_INDUSTRYTILE && object->scope == VSG_SCOPE_PARENT) {
00176     /* Pass the request on to the town of the industry */
00177     const Town *t;
00178 
00179     if (industry != NULL) {
00180       t = industry->town;
00181     } else if (tile != INVALID_TILE) {
00182       t = ClosestTownFromTile(tile, UINT_MAX);
00183     } else {
00184       *available = false;
00185       return UINT_MAX;
00186     }
00187 
00188     return TownGetVariable(variable, parameter, available, t);
00189   }
00190 
00191   if (industry == NULL) {
00192     DEBUG(grf, 1, "Unhandled variable 0x%X (no available industry) in callback 0x%x", variable, object->callback);
00193 
00194     *available = false;
00195     return UINT_MAX;
00196   }
00197 
00198   switch (variable) {
00199     case 0x40:
00200     case 0x41:
00201     case 0x42: { // waiting cargo, but only if those two callback flags are set
00202       uint16 callback = indspec->callback_mask;
00203       if (HasBit(callback, CBM_IND_PRODUCTION_CARGO_ARRIVAL) || HasBit(callback, CBM_IND_PRODUCTION_256_TICKS)) {
00204         if ((indspec->behaviour & INDUSTRYBEH_PROD_MULTI_HNDLING) != 0) {
00205           if (industry->prod_level == 0) return 0;
00206           return min(industry->incoming_cargo_waiting[variable - 0x40] / industry->prod_level, (uint16)0xFFFF);
00207         } else {
00208           return min(industry->incoming_cargo_waiting[variable - 0x40], (uint16)0xFFFF);
00209         }
00210       } else {
00211         return 0;
00212       }
00213     }
00214 
00215     /* Manhattan distance of closes dry/water tile */
00216     case 0x43: return GetClosestWaterDistance(tile, (indspec->behaviour & INDUSTRYBEH_BUILT_ONWATER) == 0);
00217 
00218     /* Layout number */
00219     case 0x44: return industry->selected_layout;
00220 
00221     /* Company info */
00222     case 0x45: {
00223       byte colours = 0;
00224       bool is_ai = false;
00225 
00226       const Company *c = Company::GetIfValid(industry->founder);
00227       if (c != NULL) {
00228         const Livery *l = &c->livery[LS_DEFAULT];
00229 
00230         is_ai = c->is_ai;
00231         colours = l->colour1 + l->colour2 * 16;
00232       }
00233 
00234       return industry->founder | (is_ai ? 0x10000 : 0) | (colours << 24);
00235     }
00236 
00237     case 0x46: return industry->construction_date; // Date when built - long format - (in days)
00238 
00239     /* Get industry ID at offset param */
00240     case 0x60: return GetIndustryIDAtOffset(GetNearbyTile(parameter, industry->location.tile, false), industry, object->grffile->grfid);
00241 
00242     /* Get random tile bits at offset param */
00243     case 0x61:
00244       tile = GetNearbyTile(parameter, tile, false);
00245       return (IsTileType(tile, MP_INDUSTRY) && Industry::GetByTile(tile) == industry) ? GetIndustryRandomBits(tile) : 0;
00246 
00247     /* Land info of nearby tiles */
00248     case 0x62: return GetNearbyIndustryTileInformation(parameter, tile, INVALID_INDUSTRY, false);
00249 
00250     /* Animation stage of nearby tiles */
00251     case 0x63:
00252       tile = GetNearbyTile(parameter, tile, false);
00253       if (IsTileType(tile, MP_INDUSTRY) && Industry::GetByTile(tile) == industry) {
00254         return GetAnimationFrame(tile);
00255       }
00256       return 0xFFFFFFFF;
00257 
00258     /* Distance of nearest industry of given type */
00259     case 0x64: return GetClosestIndustry(tile, MapNewGRFIndustryType(parameter, indspec->grf_prop.grffile->grfid), industry);
00260     /* Get town zone and Manhattan distance of closest town */
00261     case 0x65: return GetTownRadiusGroup(industry->town, tile) << 16 | min(DistanceManhattan(tile, industry->town->xy), 0xFFFF);
00262     /* Get square of Euclidian distance of closes town */
00263     case 0x66: return GetTownRadiusGroup(industry->town, tile) << 16 | min(DistanceSquare(tile, industry->town->xy), 0xFFFF);
00264 
00265     /* Count of industry, distance of closest instance
00266      * 68 is the same as 67, but with a filtering on selected layout */
00267     case 0x67:
00268     case 0x68: {
00269       byte layout_filter = 0;
00270       bool town_filter = false;
00271       if (variable == 0x68) {
00272         uint32 reg = GetRegister(0x101);
00273         layout_filter = GB(reg, 0, 8);
00274         town_filter = HasBit(reg, 8);
00275       }
00276       return GetCountAndDistanceOfClosestInstance(parameter, layout_filter, town_filter, industry);
00277     }
00278 
00279     /* Get a variable from the persistent storage */
00280     case 0x7C: return industry->psa.Get(parameter);
00281 
00282     /* Industry structure access*/
00283     case 0x80: return industry->location.tile;
00284     case 0x81: return GB(industry->location.tile, 8, 8);
00285     /* Pointer to the town the industry is associated with */
00286     case 0x82: return industry->town->index;
00287     case 0x83:
00288     case 0x84:
00289     case 0x85: DEBUG(grf, 0, "NewGRFs shouldn't be doing pointer magic"); break; // not supported
00290     case 0x86: return industry->location.w;
00291     case 0x87: return industry->location.h;// xy dimensions
00292 
00293     case 0x88:
00294     case 0x89: return industry->produced_cargo[variable - 0x88];
00295     case 0x8A: return industry->produced_cargo_waiting[0];
00296     case 0x8B: return GB(industry->produced_cargo_waiting[0], 8, 8);
00297     case 0x8C: return industry->produced_cargo_waiting[1];
00298     case 0x8D: return GB(industry->produced_cargo_waiting[1], 8, 8);
00299     case 0x8E:
00300     case 0x8F: return industry->production_rate[variable - 0x8E];
00301     case 0x90:
00302     case 0x91:
00303     case 0x92: return industry->accepts_cargo[variable - 0x90];
00304     case 0x93: return industry->prod_level;
00305     /* amount of cargo produced so far THIS month. */
00306     case 0x94: return industry->this_month_production[0];
00307     case 0x95: return GB(industry->this_month_production[0], 8, 8);
00308     case 0x96: return industry->this_month_production[1];
00309     case 0x97: return GB(industry->this_month_production[1], 8, 8);
00310     /* amount of cargo transported so far THIS month. */
00311     case 0x98: return industry->this_month_transported[0];
00312     case 0x99: return GB(industry->this_month_transported[0], 8, 8);
00313     case 0x9A: return industry->this_month_transported[1];
00314     case 0x9B: return GB(industry->this_month_transported[1], 8, 8);
00315     /* fraction of cargo transported LAST month. */
00316     case 0x9C:
00317     case 0x9D: return industry->last_month_pct_transported[variable - 0x9C];
00318     /* amount of cargo produced LAST month. */
00319     case 0x9E: return industry->last_month_production[0];
00320     case 0x9F: return GB(industry->last_month_production[0], 8, 8);
00321     case 0xA0: return industry->last_month_production[1];
00322     case 0xA1: return GB(industry->last_month_production[1], 8, 8);
00323     /* amount of cargo transported last month. */
00324     case 0xA2: return industry->last_month_transported[0];
00325     case 0xA3: return GB(industry->last_month_transported[0], 8, 8);
00326     case 0xA4: return industry->last_month_transported[1];
00327     case 0xA5: return GB(industry->last_month_transported[1], 8, 8);
00328 
00329     case 0xA6: return industry->type;
00330     case 0xA7: return industry->founder;
00331     case 0xA8: return industry->random_colour;
00332     case 0xA9: return Clamp(industry->last_prod_year - ORIGINAL_BASE_YEAR, 0, 255);
00333     case 0xAA: return industry->counter;
00334     case 0xAB: return GB(industry->counter, 8, 8);
00335     case 0xAC: return industry->was_cargo_delivered;
00336 
00337     case 0xB0: return Clamp(industry->construction_date - DAYS_TILL_ORIGINAL_BASE_YEAR, 0, 65535); // Date when built since 1920 (in days)
00338     case 0xB3: return industry->construction_type; // Construction type
00339     case 0xB4: return Clamp(industry->last_cargo_accepted_at - DAYS_TILL_ORIGINAL_BASE_YEAR, 0, 65535); // Date last cargo accepted since 1920 (in days)
00340   }
00341 
00342   DEBUG(grf, 1, "Unhandled industry variable 0x%X", variable);
00343 
00344   *available = false;
00345   return UINT_MAX;
00346 }
00347 
00348 static const SpriteGroup *IndustryResolveReal(const ResolverObject *object, const RealSpriteGroup *group)
00349 {
00350   /* IndustryTile do not have 'real' groups */
00351   return NULL;
00352 }
00353 
00354 static uint32 IndustryGetRandomBits(const ResolverObject *object)
00355 {
00356   const Industry *ind = object->u.industry.ind;
00357   return ind != NULL ? ind->random: 0;
00358 }
00359 
00360 static uint32 IndustryGetTriggers(const ResolverObject *object)
00361 {
00362   const Industry *ind = object->u.industry.ind;
00363   return ind != NULL ? ind->random_triggers : 0;
00364 }
00365 
00366 static void IndustrySetTriggers(const ResolverObject *object, int triggers)
00367 {
00368   Industry *ind = object->u.industry.ind;
00369   assert(ind != NULL && ind->index != INVALID_INDUSTRY);
00370   ind->random_triggers = triggers;
00371 }
00372 
00373 static void NewIndustryResolver(ResolverObject *res, TileIndex tile, Industry *indus, IndustryType type)
00374 {
00375   res->GetRandomBits = IndustryGetRandomBits;
00376   res->GetTriggers   = IndustryGetTriggers;
00377   res->SetTriggers   = IndustrySetTriggers;
00378   res->GetVariable   = IndustryGetVariable;
00379   res->ResolveReal   = IndustryResolveReal;
00380 
00381   res->psa             = &indus->psa;
00382   res->u.industry.tile = tile;
00383   res->u.industry.ind  = indus;
00384   res->u.industry.gfx  = INVALID_INDUSTRYTILE;
00385   res->u.industry.type = type;
00386 
00387   res->callback        = CBID_NO_CALLBACK;
00388   res->callback_param1 = 0;
00389   res->callback_param2 = 0;
00390   res->last_value      = 0;
00391   res->trigger         = 0;
00392   res->reseed          = 0;
00393   res->count           = 0;
00394 
00395   const IndustrySpec *indspec = GetIndustrySpec(type);
00396   res->grffile         = (indspec != NULL ? indspec->grf_prop.grffile : NULL);
00397 }
00398 
00399 uint16 GetIndustryCallback(CallbackID callback, uint32 param1, uint32 param2, Industry *industry, IndustryType type, TileIndex tile)
00400 {
00401   ResolverObject object;
00402   const SpriteGroup *group;
00403 
00404   NewIndustryResolver(&object, tile, industry, type);
00405   object.callback = callback;
00406   object.callback_param1 = param1;
00407   object.callback_param2 = param2;
00408 
00409   group = SpriteGroup::Resolve(GetIndustrySpec(type)->grf_prop.spritegroup[0], &object);
00410   if (group == NULL) return CALLBACK_FAILED;
00411 
00412   return group->GetCallbackResult();
00413 }
00414 
00415 uint32 IndustryLocationGetVariable(const ResolverObject *object, byte variable, byte parameter, bool *available)
00416 {
00417   const Industry *industry = object->u.industry.ind;
00418   TileIndex tile = object->u.industry.tile;
00419 
00420   if (object->scope == VSG_SCOPE_PARENT) {
00421     return TownGetVariable(variable, parameter, available, industry->town);
00422   }
00423 
00424   switch (variable) {
00425     case 0x80: return tile;
00426     case 0x81: return GB(tile, 8, 8);
00427 
00428     /* Pointer to the town the industry is associated with */
00429     case 0x82: return industry->town->index;
00430     case 0x83:
00431     case 0x84:
00432     case 0x85: DEBUG(grf, 0, "NewGRFs shouldn't be doing pointer magic"); break; // not supported
00433 
00434     /* Number of the layout */
00435     case 0x86: return industry->selected_layout;
00436 
00437     /* Ground type */
00438     case 0x87: return GetTerrainType(tile);
00439 
00440     /* Town zone */
00441     case 0x88: return GetTownRadiusGroup(industry->town, tile);
00442 
00443     /* Manhattan distance of the closest town */
00444     case 0x89: return min(DistanceManhattan(industry->town->xy, tile), 255);
00445 
00446     /* Lowest height of the tile */
00447     case 0x8A: return GetTileZ(tile);
00448 
00449     /* Distance to the nearest water/land tile */
00450     case 0x8B: return GetClosestWaterDistance(tile, (GetIndustrySpec(industry->type)->behaviour & INDUSTRYBEH_BUILT_ONWATER) == 0);
00451 
00452     /* Square of Euclidian distance from town */
00453     case 0x8D: return min(DistanceSquare(industry->town->xy, tile), 65535);
00454 
00455     /* 32 random bits */
00456     case 0x8F: return _industry_creation_random_bits;
00457   }
00458 
00459   /* None of the special ones, so try the general ones */
00460   return IndustryGetVariable(object, variable, parameter, available);
00461 }
00462 
00474 CommandCost CheckIfCallBackAllowsCreation(TileIndex tile, IndustryType type, uint layout, uint32 seed, uint16 initial_random_bits, Owner founder, IndustryAvailabilityCallType creation_type)
00475 {
00476   const IndustrySpec *indspec = GetIndustrySpec(type);
00477 
00478   ResolverObject object;
00479   const SpriteGroup *group;
00480 
00481   Industry ind;
00482   ind.index = INVALID_INDUSTRY;
00483   ind.location.tile = tile;
00484   ind.location.w = 0; // important to mark the industry invalid
00485   ind.type = type;
00486   ind.selected_layout = layout;
00487   ind.town = ClosestTownFromTile(tile, UINT_MAX);
00488   ind.random = initial_random_bits;
00489   ind.founder = founder;
00490 
00491   NewIndustryResolver(&object, tile, &ind, type);
00492   object.GetVariable = IndustryLocationGetVariable;
00493   object.callback = CBID_INDUSTRY_LOCATION;
00494   object.callback_param2 = creation_type;
00495   _industry_creation_random_bits = seed;
00496 
00497   group = SpriteGroup::Resolve(GetIndustrySpec(type)->grf_prop.spritegroup[0], &object);
00498 
00499   /* Unlike the "normal" cases, not having a valid result means we allow
00500    * the building of the industry, as that's how it's done in TTDP. */
00501   if (group == NULL) return CommandCost();
00502   uint16 result = group->GetCallbackResult();
00503   if (result == 0x400 || result == CALLBACK_FAILED) return CommandCost();
00504 
00505   /* Copy some parameters from the registers to the error message text ref. stack */
00506   SwitchToErrorRefStack();
00507   PrepareTextRefStackUsage(4);
00508   SwitchToNormalRefStack();
00509 
00510   switch (result) {
00511     case 0x401: return_cmd_error(STR_ERROR_SITE_UNSUITABLE);
00512     case 0x402: return_cmd_error(STR_ERROR_CAN_ONLY_BE_BUILT_IN_RAINFOREST);
00513     case 0x403: return_cmd_error(STR_ERROR_CAN_ONLY_BE_BUILT_IN_DESERT);
00514     default:    return_cmd_error(GetGRFStringID(indspec->grf_prop.grffile->grfid, 0xD000 + result));
00515   }
00516   NOT_REACHED();
00517 }
00518 
00525 bool CheckIfCallBackAllowsAvailability(IndustryType type, IndustryAvailabilityCallType creation_type)
00526 {
00527   const IndustrySpec *indspec = GetIndustrySpec(type);
00528 
00529   if (HasBit(indspec->callback_mask, CBM_IND_AVAILABLE)) {
00530     uint16 res = GetIndustryCallback(CBID_INDUSTRY_AVAILABLE, 0, creation_type, NULL, type, INVALID_TILE);
00531     if (res != CALLBACK_FAILED) {
00532       return (res == 0);
00533     }
00534   }
00535   return true;
00536 }
00537 
00538 static int32 DerefIndProd(int field, bool use_register)
00539 {
00540   return use_register ? (int32)GetRegister(field) : field;
00541 }
00542 
00548 void IndustryProductionCallback(Industry *ind, int reason)
00549 {
00550   const IndustrySpec *spec = GetIndustrySpec(ind->type);
00551   ResolverObject object;
00552   NewIndustryResolver(&object, ind->location.tile, ind, ind->type);
00553   if ((spec->behaviour & INDUSTRYBEH_PRODCALLBACK_RANDOM) != 0) object.callback_param1 = Random();
00554   int multiplier = 1;
00555   if ((spec->behaviour & INDUSTRYBEH_PROD_MULTI_HNDLING) != 0) multiplier = ind->prod_level;
00556   object.callback_param2 = reason;
00557 
00558   for (uint loop = 0;; loop++) {
00559     /* limit the number of calls to break infinite loops.
00560      * 'loop' is provided as 16 bits to the newgrf, so abort when those are exceeded. */
00561     if (loop >= 0x10000) {
00562       /* display error message */
00563       SetDParamStr(0, spec->grf_prop.grffile->filename);
00564       SetDParam(1, spec->name);
00565       ShowErrorMessage(STR_NEWGRF_BUGGY, STR_NEWGRF_BUGGY_ENDLESS_PRODUCTION_CALLBACK, WL_WARNING);
00566 
00567       /* abort the function early, this error isn't critical and will allow the game to continue to run */
00568       break;
00569     }
00570 
00571     SB(object.callback_param2, 8, 16, loop);
00572     const SpriteGroup *tgroup = SpriteGroup::Resolve(spec->grf_prop.spritegroup[0], &object);
00573     if (tgroup == NULL || tgroup->type != SGT_INDUSTRY_PRODUCTION) break;
00574     const IndustryProductionSpriteGroup *group = (const IndustryProductionSpriteGroup *)tgroup;
00575 
00576     bool deref = (group->version == 1);
00577 
00578     for (uint i = 0; i < 3; i++) {
00579       ind->incoming_cargo_waiting[i] = Clamp(ind->incoming_cargo_waiting[i] - DerefIndProd(group->subtract_input[i], deref) * multiplier, 0, 0xFFFF);
00580     }
00581     for (uint i = 0; i < 2; i++) {
00582       ind->produced_cargo_waiting[i] = Clamp(ind->produced_cargo_waiting[i] + max(DerefIndProd(group->add_output[i], deref), 0) * multiplier, 0, 0xFFFF);
00583     }
00584 
00585     int32 again = DerefIndProd(group->again, deref);
00586     if (again == 0) break;
00587 
00588     SB(object.callback_param2, 24, 8, again);
00589   }
00590 
00591   SetWindowDirty(WC_INDUSTRY_VIEW, ind->index);
00592 }
00593 
00599 void GetIndustryResolver(ResolverObject *ro, uint index)
00600 {
00601   Industry *i = Industry::Get(index);
00602   NewIndustryResolver(ro, i->location.tile, i, i->type);
00603 }
00604 
00612 bool IndustryTemporarilyRefusesCargo(Industry *ind, CargoID cargo_type)
00613 {
00614   assert(cargo_type == ind->accepts_cargo[0] || cargo_type == ind->accepts_cargo[1] || cargo_type == ind->accepts_cargo[2]);
00615 
00616   const IndustrySpec *indspec = GetIndustrySpec(ind->type);
00617   if (HasBit(indspec->callback_mask, CBM_IND_REFUSE_CARGO)) {
00618     uint16 res = GetIndustryCallback(CBID_INDUSTRY_REFUSE_CARGO,
00619         0, GetReverseCargoTranslation(cargo_type, indspec->grf_prop.grffile),
00620         ind, ind->type, ind->location.tile);
00621     return res == 0;
00622   }
00623   return false;
00624 }

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