newgrf_industries.cpp

Go to the documentation of this file.
00001 /* $Id: newgrf_industries.cpp 19567 2010-04-05 21:34:47Z 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_commons.h"
00018 #include "newgrf_text.h"
00019 #include "newgrf_town.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_INDUSTRYOFFSET) { // 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 != 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 
00111 static uint32 GetCountAndDistanceOfClosestInstance(byte param_setID, byte layout_filter, const Industry *current)
00112 {
00113   uint32 GrfID = GetRegister(0x100);  
00114   IndustryType ind_index;
00115   uint32 closest_dist = UINT32_MAX;
00116   byte count = 0;
00117 
00118   /* Determine what will be the industry type to look for */
00119   switch (GrfID) {
00120     case 0:  // this is a default industry type
00121       ind_index = param_setID;
00122       break;
00123 
00124     case 0xFFFFFFFF: // current grf
00125       GrfID = GetIndustrySpec(current->type)->grf_prop.grffile->grfid;
00126       /* Fall through */
00127 
00128     default: // use the grfid specified in register 100h
00129       SetBit(param_setID, 7); // bit 7 means it is not an old type
00130       ind_index = MapNewGRFIndustryType(param_setID, GrfID);
00131       break;
00132   }
00133 
00134   if (layout_filter == 0) {
00135     /* If the filter is 0, it could be because none was specified as well as being really a 0.
00136      * In either case, just do the regular var67 */
00137     closest_dist = GetClosestIndustry(current->location.tile, ind_index, current);
00138     count = GetIndustryTypeCount(ind_index);
00139   } else {
00140     /* Count only those who match the same industry type and layout filter
00141      * Unfortunately, we have to do it manually */
00142     const Industry *i;
00143     FOR_ALL_INDUSTRIES(i) {
00144       if (i->type == ind_index && i != current && i->selected_layout == layout_filter) {
00145         closest_dist = min(closest_dist, DistanceManhattan(current->location.tile, i->location.tile));
00146         count++;
00147       }
00148     }
00149   }
00150 
00151   return count << 16 | GB(closest_dist, 0, 16);
00152 }
00153 
00160 uint32 IndustryGetVariable(const ResolverObject *object, byte variable, byte parameter, bool *available)
00161 {
00162   const Industry *industry = object->u.industry.ind;
00163   TileIndex tile = object->u.industry.tile;
00164   IndustryType type = object->u.industry.type;
00165   const IndustrySpec *indspec = GetIndustrySpec(type);
00166 
00167   /* Shall the variable get resolved in parent scope and are we not yet in parent scope? */
00168   if (object->u.industry.gfx == INVALID_INDUSTRYTILE && object->scope == VSG_SCOPE_PARENT) {
00169     /* Pass the request on to the town of the industry */
00170     const Town *t;
00171 
00172     if (industry != NULL) {
00173       t = industry->town;
00174     } else if (tile != INVALID_TILE) {
00175       t = ClosestTownFromTile(tile, UINT_MAX);
00176     } else {
00177       *available = false;
00178       return UINT_MAX;
00179     }
00180 
00181     return TownGetVariable(variable, parameter, available, t);
00182   }
00183 
00184   if (industry == NULL) {
00185     /* industry does not exist, only use those variables that are "safe" */
00186     switch (variable) {
00187       /* Manhattan distance of closes dry/water tile */
00188       case 0x43: return GetClosestWaterDistance(tile, (indspec->behaviour & INDUSTRYBEH_BUILT_ONWATER) == 0);
00189     }
00190 
00191     DEBUG(grf, 1, "Unhandled property 0x%X (no available industry) in callback 0x%x", variable, object->callback);
00192 
00193     *available = false;
00194     return UINT_MAX;
00195   }
00196 
00197   switch (variable) {
00198     case 0x40:
00199     case 0x41:
00200     case 0x42: { // waiting cargo, but only if those two callback flags are set
00201       uint16 callback = indspec->callback_mask;
00202       if (HasBit(callback, CBM_IND_PRODUCTION_CARGO_ARRIVAL) || HasBit(callback, CBM_IND_PRODUCTION_256_TICKS)) {
00203         if ((indspec->behaviour & INDUSTRYBEH_PROD_MULTI_HNDLING) != 0) {
00204           return min(industry->incoming_cargo_waiting[variable - 0x40] / industry->prod_level, (uint16)0xFFFF);
00205         } else {
00206           return min(industry->incoming_cargo_waiting[variable - 0x40], (uint16)0xFFFF);
00207         }
00208       } else {
00209         return 0;
00210       }
00211     }
00212 
00213     /* Manhattan distance of closes dry/water tile */
00214     case 0x43: return GetClosestWaterDistance(tile, (indspec->behaviour & INDUSTRYBEH_BUILT_ONWATER) == 0);
00215 
00216     /* Layout number */
00217     case 0x44: return industry->selected_layout;
00218 
00219     /* Company info */
00220     case 0x45: {
00221       byte colours = 0;
00222       bool is_ai = false;
00223 
00224       const Company *c = Company::GetIfValid(industry->founder);
00225       if (c != NULL) {
00226         const Livery *l = &c->livery[LS_DEFAULT];
00227 
00228         is_ai = c->is_ai;
00229         colours = l->colour1 + l->colour2 * 16;
00230       }
00231 
00232       return industry->founder | (is_ai ? 0x10000 : 0) | (colours << 24);
00233     }
00234 
00235     case 0x46: return industry->construction_date; // Date when built - long format - (in days)
00236 
00237     /* Get industry ID at offset param */
00238     case 0x60: return GetIndustryIDAtOffset(GetNearbyTile(parameter, industry->location.tile), industry, object->grffile->grfid);
00239 
00240     /* Get random tile bits at offset param */
00241     case 0x61:
00242       tile = GetNearbyTile(parameter, tile);
00243       return (IsTileType(tile, MP_INDUSTRY) && Industry::GetByTile(tile) == industry) ? GetIndustryRandomBits(tile) : 0;
00244 
00245     /* Land info of nearby tiles */
00246     case 0x62: return GetNearbyIndustryTileInformation(parameter, tile, INVALID_INDUSTRY);
00247 
00248     /* Animation stage of nearby tiles */
00249     case 0x63:
00250       tile = GetNearbyTile(parameter, tile);
00251       if (IsTileType(tile, MP_INDUSTRY) && Industry::GetByTile(tile) == industry) {
00252         return GetIndustryAnimationState(tile);
00253       }
00254       return 0xFFFFFFFF;
00255 
00256     /* Distance of nearest industry of given type */
00257     case 0x64: return GetClosestIndustry(tile, MapNewGRFIndustryType(parameter, indspec->grf_prop.grffile->grfid), industry);
00258     /* Get town zone and Manhattan distance of closest town */
00259     case 0x65: return GetTownRadiusGroup(industry->town, tile) << 16 | min(DistanceManhattan(tile, industry->town->xy), 0xFFFF);
00260     /* Get square of Euclidian distance of closes town */
00261     case 0x66: return GetTownRadiusGroup(industry->town, tile) << 16 | min(DistanceSquare(tile, industry->town->xy), 0xFFFF);
00262 
00263     /* Count of industry, distance of closest instance
00264      * 68 is the same as 67, but with a filtering on selected layout */
00265     case 0x67:
00266     case 0x68: return GetCountAndDistanceOfClosestInstance(parameter, variable == 0x68 ? GB(GetRegister(0x101), 0, 8) : 0, industry);
00267 
00268     /* Get a variable from the persistent storage */
00269     case 0x7C: return industry->psa.Get(parameter);
00270 
00271     /* Industry structure access*/
00272     case 0x80: return industry->location.tile;
00273     case 0x81: return GB(industry->location.tile, 8, 8);
00274     /* Pointer to the town the industry is associated with */
00275     case 0x82: return industry->town->index;
00276     case 0x83:
00277     case 0x84:
00278     case 0x85: DEBUG(grf, 0, "NewGRFs shouldn't be doing pointer magic"); break; // not supported
00279     case 0x86: return industry->location.w;
00280     case 0x87: return industry->location.h;// xy dimensions
00281 
00282     case 0x88:
00283     case 0x89: return industry->produced_cargo[variable - 0x88];
00284     case 0x8A: return industry->produced_cargo_waiting[0];
00285     case 0x8B: return GB(industry->produced_cargo_waiting[0], 8, 8);
00286     case 0x8C: return industry->produced_cargo_waiting[1];
00287     case 0x8D: return GB(industry->produced_cargo_waiting[1], 8, 8);
00288     case 0x8E:
00289     case 0x8F: return industry->production_rate[variable - 0x8E];
00290     case 0x90:
00291     case 0x91:
00292     case 0x92: return industry->accepts_cargo[variable - 0x90];
00293     case 0x93: return industry->prod_level;
00294     /* amount of cargo produced so far THIS month. */
00295     case 0x94: return industry->this_month_production[0];
00296     case 0x95: return GB(industry->this_month_production[0], 8, 8);
00297     case 0x96: return industry->this_month_production[1];
00298     case 0x97: return GB(industry->this_month_production[1], 8, 8);
00299     /* amount of cargo transported so far THIS month. */
00300     case 0x98: return industry->this_month_transported[0];
00301     case 0x99: return GB(industry->this_month_transported[0], 8, 8);
00302     case 0x9A: return industry->this_month_transported[1];
00303     case 0x9B: return GB(industry->this_month_transported[1], 8, 8);
00304     /* fraction of cargo transported LAST month. */
00305     case 0x9C:
00306     case 0x9D: return industry->last_month_pct_transported[variable - 0x9C];
00307     /* amount of cargo produced LAST month. */
00308     case 0x9E: return industry->last_month_production[0];
00309     case 0x9F: return GB(industry->last_month_production[0], 8, 8);
00310     case 0xA0: return industry->last_month_production[1];
00311     case 0xA1: return GB(industry->last_month_production[1], 8, 8);
00312     /* amount of cargo transported last month. */
00313     case 0xA2: return industry->last_month_transported[0];
00314     case 0xA3: return GB(industry->last_month_transported[0], 8, 8);
00315     case 0xA4: return industry->last_month_transported[1];
00316     case 0xA5: return GB(industry->last_month_transported[1], 8, 8);
00317 
00318     case 0xA6: return industry->type;
00319     case 0xA7: return industry->founder;
00320     case 0xA8: return industry->random_colour;
00321     case 0xA9: return Clamp(industry->last_prod_year - ORIGINAL_BASE_YEAR, 0, 255);
00322     case 0xAA: return industry->counter;
00323     case 0xAB: return GB(industry->counter, 8, 8);
00324     case 0xAC: return industry->was_cargo_delivered;
00325 
00326     case 0xB0: return Clamp(industry->construction_date - DAYS_TILL_ORIGINAL_BASE_YEAR, 0, 65535); // Date when built since 1920 (in days)
00327     case 0xB3: return industry->construction_type; // Construction type
00328     case 0xB4: return Clamp(industry->last_cargo_accepted_at - DAYS_TILL_ORIGINAL_BASE_YEAR, 0, 65535); // Date last cargo accepted since 1920 (in days)
00329   }
00330 
00331   DEBUG(grf, 1, "Unhandled industry property 0x%X", variable);
00332 
00333   *available = false;
00334   return UINT_MAX;
00335 }
00336 
00337 static const SpriteGroup *IndustryResolveReal(const ResolverObject *object, const RealSpriteGroup *group)
00338 {
00339   /* IndustryTile do not have 'real' groups */
00340   return NULL;
00341 }
00342 
00343 static uint32 IndustryGetRandomBits(const ResolverObject *object)
00344 {
00345   return object->u.industry.ind == NULL ? 0 : object->u.industry.ind->random;
00346 }
00347 
00348 static uint32 IndustryGetTriggers(const ResolverObject *object)
00349 {
00350   return object->u.industry.ind == NULL ? 0 : object->u.industry.ind->random_triggers;
00351 }
00352 
00353 static void IndustrySetTriggers(const ResolverObject *object, int triggers)
00354 {
00355   if (object->u.industry.ind == NULL) return;
00356   object->u.industry.ind->random_triggers = triggers;
00357 }
00358 
00359 static void NewIndustryResolver(ResolverObject *res, TileIndex tile, Industry *indus, IndustryType type)
00360 {
00361   res->GetRandomBits = IndustryGetRandomBits;
00362   res->GetTriggers   = IndustryGetTriggers;
00363   res->SetTriggers   = IndustrySetTriggers;
00364   res->GetVariable   = IndustryGetVariable;
00365   res->ResolveReal   = IndustryResolveReal;
00366 
00367   res->psa             = &indus->psa;
00368   res->u.industry.tile = tile;
00369   res->u.industry.ind  = indus;
00370   res->u.industry.gfx  = INVALID_INDUSTRYTILE;
00371   res->u.industry.type = type;
00372 
00373   res->callback        = CBID_NO_CALLBACK;
00374   res->callback_param1 = 0;
00375   res->callback_param2 = 0;
00376   res->last_value      = 0;
00377   res->trigger         = 0;
00378   res->reseed          = 0;
00379   res->count           = 0;
00380 
00381   const IndustrySpec *indspec = GetIndustrySpec(type);
00382   res->grffile         = (indspec != NULL ? indspec->grf_prop.grffile : NULL);
00383 }
00384 
00385 uint16 GetIndustryCallback(CallbackID callback, uint32 param1, uint32 param2, Industry *industry, IndustryType type, TileIndex tile)
00386 {
00387   ResolverObject object;
00388   const SpriteGroup *group;
00389 
00390   NewIndustryResolver(&object, tile, industry, type);
00391   object.callback = callback;
00392   object.callback_param1 = param1;
00393   object.callback_param2 = param2;
00394 
00395   group = SpriteGroup::Resolve(GetIndustrySpec(type)->grf_prop.spritegroup, &object);
00396   if (group == NULL) return CALLBACK_FAILED;
00397 
00398   return group->GetCallbackResult();
00399 }
00400 
00401 uint32 IndustryLocationGetVariable(const ResolverObject *object, byte variable, byte parameter, bool *available)
00402 {
00403   const Industry *industry = object->u.industry.ind;
00404   TileIndex tile = object->u.industry.tile;
00405 
00406   if (object->scope == VSG_SCOPE_PARENT) {
00407     return TownGetVariable(variable, parameter, available, industry->town);
00408   }
00409 
00410   switch (variable) {
00411     case 0x80: return tile;
00412     case 0x81: return GB(tile, 8, 8);
00413 
00414     /* Pointer to the town the industry is associated with */
00415     case 0x82: return industry->town->index;
00416     case 0x83:
00417     case 0x84:
00418     case 0x85: DEBUG(grf, 0, "NewGRFs shouldn't be doing pointer magic"); break; // not supported
00419 
00420     /* Number of the layout */
00421     case 0x86: return industry->selected_layout;
00422 
00423     /* Ground type */
00424     case 0x87: return GetTerrainType(tile);
00425 
00426     /* Town zone */
00427     case 0x88: return GetTownRadiusGroup(industry->town, tile);
00428 
00429     /* Manhattan distance of the closest town */
00430     case 0x89: return min(DistanceManhattan(industry->town->xy, tile), 255);
00431 
00432     /* Lowest height of the tile */
00433     case 0x8A: return GetTileZ(tile);
00434 
00435     /* Distance to the nearest water/land tile */
00436     case 0x8B: return GetClosestWaterDistance(tile, (GetIndustrySpec(industry->type)->behaviour & INDUSTRYBEH_BUILT_ONWATER) == 0);
00437 
00438     /* Square of Euclidian distance from town */
00439     case 0x8D: return min(DistanceSquare(industry->town->xy, tile), 65535);
00440 
00441     /* 32 random bits */
00442     case 0x8F: return _industry_creation_random_bits;
00443   }
00444 
00445   /* None of the special ones, so try the general ones */
00446   return IndustryGetVariable(object, variable, parameter, available);
00447 }
00448 
00449 bool CheckIfCallBackAllowsCreation(TileIndex tile, IndustryType type, uint itspec_index, uint32 seed)
00450 {
00451   const IndustrySpec *indspec = GetIndustrySpec(type);
00452 
00453   ResolverObject object;
00454   const SpriteGroup *group;
00455 
00456   Industry ind;
00457   ind.index = INVALID_INDUSTRY;
00458   ind.location.tile = tile;
00459   ind.location.w = 0;
00460   ind.type = type;
00461   ind.selected_layout = itspec_index;
00462   ind.town = ClosestTownFromTile(tile, UINT_MAX);
00463 
00464   NewIndustryResolver(&object, tile, &ind, type);
00465   object.GetVariable = IndustryLocationGetVariable;
00466   object.callback = CBID_INDUSTRY_LOCATION;
00467   _industry_creation_random_bits = seed;
00468 
00469   group = SpriteGroup::Resolve(GetIndustrySpec(type)->grf_prop.spritegroup, &object);
00470 
00471   /* Unlike the "normal" cases, not having a valid result means we allow
00472    * the building of the industry, as that's how it's done in TTDP. */
00473   if (group == NULL) return true;
00474   uint16 result = group->GetCallbackResult();
00475   if (result == 0x400 || result == CALLBACK_FAILED) return true;
00476 
00477   /* Copy some parameters from the registers to the error message text ref. stack */
00478   SwitchToErrorRefStack();
00479   PrepareTextRefStackUsage(4);
00480   SwitchToNormalRefStack();
00481 
00482   switch (result) {
00483     case 0x401: _error_message = STR_ERROR_SITE_UNSUITABLE; break;
00484     case 0x402: _error_message = STR_ERROR_CAN_ONLY_BE_BUILT_IN_RAINFOREST; break;
00485     case 0x403: _error_message = STR_ERROR_CAN_ONLY_BE_BUILT_IN_DESERT; break;
00486     default: _error_message = GetGRFStringID(indspec->grf_prop.grffile->grfid, 0xD000 + result); break;
00487   }
00488 
00489   return false;
00490 }
00491 
00492 bool CheckIfCallBackAllowsAvailability(IndustryType type, IndustryAvailabilityCallType creation_type)
00493 {
00494   const IndustrySpec *indspec = GetIndustrySpec(type);
00495 
00496   if (HasBit(indspec->callback_mask, CBM_IND_AVAILABLE)) {
00497     uint16 res = GetIndustryCallback(CBID_INDUSTRY_AVAILABLE, 0, creation_type, NULL, type, INVALID_TILE);
00498     if (res != CALLBACK_FAILED) {
00499       return (res == 0);
00500     }
00501   }
00502   return true;
00503 }
00504 
00505 static int32 DerefIndProd(int field, bool use_register)
00506 {
00507   return use_register ? (int32)GetRegister(field) : field;
00508 }
00509 
00515 void IndustryProductionCallback(Industry *ind, int reason)
00516 {
00517   const IndustrySpec *spec = GetIndustrySpec(ind->type);
00518   ResolverObject object;
00519   NewIndustryResolver(&object, ind->location.tile, ind, ind->type);
00520   if ((spec->behaviour & INDUSTRYBEH_PRODCALLBACK_RANDOM) != 0) object.callback_param1 = Random();
00521   int multiplier = 1;
00522   if ((spec->behaviour & INDUSTRYBEH_PROD_MULTI_HNDLING) != 0) multiplier = ind->prod_level;
00523   object.callback_param2 = reason;
00524 
00525   for (uint loop = 0;; loop++) {
00526     /* limit the number of calls to break infinite loops.
00527      * 'loop' is provided as 16 bits to the newgrf, so abort when those are exceeded. */
00528     if (loop >= 0x10000) {
00529       /* display error message */
00530       SetDParamStr(0, spec->grf_prop.grffile->filename);
00531       SetDParam(1, spec->name);
00532       ShowErrorMessage(STR_NEWGRF_BUGGY, STR_NEWGRF_BUGGY_ENDLESS_PRODUCTION_CALLBACK, 0, 0);
00533 
00534       /* abort the function early, this error isn't critical and will allow the game to continue to run */
00535       break;
00536     }
00537 
00538     SB(object.callback_param2, 8, 16, loop);
00539     const SpriteGroup *tgroup = SpriteGroup::Resolve(spec->grf_prop.spritegroup, &object);
00540     if (tgroup == NULL || tgroup->type != SGT_INDUSTRY_PRODUCTION) break;
00541     const IndustryProductionSpriteGroup *group = (const IndustryProductionSpriteGroup *)tgroup;
00542 
00543     bool deref = (group->version == 1);
00544 
00545     for (uint i = 0; i < 3; i++) {
00546       ind->incoming_cargo_waiting[i] = Clamp(ind->incoming_cargo_waiting[i] - DerefIndProd(group->subtract_input[i], deref) * multiplier, 0, 0xFFFF);
00547     }
00548     for (uint i = 0; i < 2; i++) {
00549       ind->produced_cargo_waiting[i] = Clamp(ind->produced_cargo_waiting[i] + max(DerefIndProd(group->add_output[i], deref), 0) * multiplier, 0, 0xFFFF);
00550     }
00551 
00552     int32 again = DerefIndProd(group->again, deref);
00553     if (again == 0) break;
00554 
00555     SB(object.callback_param2, 24, 8, again);
00556   }
00557 
00558   SetWindowDirty(WC_INDUSTRY_VIEW, ind->index);
00559 }

Generated on Wed Apr 21 20:31:50 2010 for OpenTTD by  doxygen 1.6.1