newgrf_industries.cpp

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00001 /* $Id$ */
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 
00112 static uint32 GetCountAndDistanceOfClosestInstance(byte param_setID, byte layout_filter, const Industry *current)
00113 {
00114   uint32 GrfID = GetRegister(0x100);  
00115   IndustryType ind_index;
00116   uint32 closest_dist = UINT32_MAX;
00117   byte count = 0;
00118 
00119   /* Determine what will be the industry type to look for */
00120   switch (GrfID) {
00121     case 0:  // this is a default industry type
00122       ind_index = param_setID;
00123       break;
00124 
00125     case 0xFFFFFFFF: // current grf
00126       GrfID = GetIndustrySpec(current->type)->grf_prop.grffile->grfid;
00127       /* FALL THROUGH */
00128 
00129     default: // use the grfid specified in register 100h
00130       SetBit(param_setID, 7); // bit 7 means it is not an old type
00131       ind_index = MapNewGRFIndustryType(param_setID, GrfID);
00132       break;
00133   }
00134 
00135   /* If the industry type is invalid, there is none and the closest is far away. */
00136   if (ind_index >= NUM_INDUSTRYTYPES) return 0 | 0xFFFF;
00137 
00138   if (layout_filter == 0) {
00139     /* If the filter is 0, it could be because none was specified as well as being really a 0.
00140      * In either case, just do the regular var67 */
00141     closest_dist = GetClosestIndustry(current->location.tile, ind_index, current);
00142     count = min(Industry::GetIndustryTypeCount(ind_index), UINT8_MAX); // clamp to 8 bit
00143   } else {
00144     /* Count only those who match the same industry type and layout filter
00145      * Unfortunately, we have to do it manually */
00146     const Industry *i;
00147     FOR_ALL_INDUSTRIES(i) {
00148       if (i->type == ind_index && i != current && i->selected_layout == layout_filter) {
00149         closest_dist = min(closest_dist, DistanceManhattan(current->location.tile, i->location.tile));
00150         count++;
00151       }
00152     }
00153   }
00154 
00155   return count << 16 | GB(closest_dist, 0, 16);
00156 }
00157 
00166 uint32 IndustryGetVariable(const ResolverObject *object, byte variable, byte parameter, bool *available)
00167 {
00168   const Industry *industry = object->u.industry.ind;
00169   TileIndex tile = object->u.industry.tile;
00170   IndustryType type = object->u.industry.type;
00171   const IndustrySpec *indspec = GetIndustrySpec(type);
00172 
00173   /* Shall the variable get resolved in parent scope and are we not yet in parent scope? */
00174   if (object->u.industry.gfx == INVALID_INDUSTRYTILE && object->scope == VSG_SCOPE_PARENT) {
00175     /* Pass the request on to the town of the industry */
00176     const Town *t;
00177 
00178     if (industry != NULL) {
00179       t = industry->town;
00180     } else if (tile != INVALID_TILE) {
00181       t = ClosestTownFromTile(tile, UINT_MAX);
00182     } else {
00183       *available = false;
00184       return UINT_MAX;
00185     }
00186 
00187     return TownGetVariable(variable, parameter, available, t);
00188   }
00189 
00190   if (industry == NULL) {
00191     DEBUG(grf, 1, "Unhandled variable 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           if (industry->prod_level == 0) return 0;
00205           return min(industry->incoming_cargo_waiting[variable - 0x40] / industry->prod_level, (uint16)0xFFFF);
00206         } else {
00207           return min(industry->incoming_cargo_waiting[variable - 0x40], (uint16)0xFFFF);
00208         }
00209       } else {
00210         return 0;
00211       }
00212     }
00213 
00214     /* Manhattan distance of closes dry/water tile */
00215     case 0x43: return GetClosestWaterDistance(tile, (indspec->behaviour & INDUSTRYBEH_BUILT_ONWATER) == 0);
00216 
00217     /* Layout number */
00218     case 0x44: return industry->selected_layout;
00219 
00220     /* Company info */
00221     case 0x45: {
00222       byte colours = 0;
00223       bool is_ai = false;
00224 
00225       const Company *c = Company::GetIfValid(industry->founder);
00226       if (c != NULL) {
00227         const Livery *l = &c->livery[LS_DEFAULT];
00228 
00229         is_ai = c->is_ai;
00230         colours = l->colour1 + l->colour2 * 16;
00231       }
00232 
00233       return industry->founder | (is_ai ? 0x10000 : 0) | (colours << 24);
00234     }
00235 
00236     case 0x46: return industry->construction_date; // Date when built - long format - (in days)
00237 
00238     /* Get industry ID at offset param */
00239     case 0x60: return GetIndustryIDAtOffset(GetNearbyTile(parameter, industry->location.tile, false), industry, object->grffile->grfid);
00240 
00241     /* Get random tile bits at offset param */
00242     case 0x61:
00243       tile = GetNearbyTile(parameter, tile, false);
00244       return (IsTileType(tile, MP_INDUSTRY) && Industry::GetByTile(tile) == industry) ? GetIndustryRandomBits(tile) : 0;
00245 
00246     /* Land info of nearby tiles */
00247     case 0x62: return GetNearbyIndustryTileInformation(parameter, tile, INVALID_INDUSTRY, false);
00248 
00249     /* Animation stage of nearby tiles */
00250     case 0x63:
00251       tile = GetNearbyTile(parameter, tile, false);
00252       if (IsTileType(tile, MP_INDUSTRY) && Industry::GetByTile(tile) == industry) {
00253         return GetAnimationFrame(tile);
00254       }
00255       return 0xFFFFFFFF;
00256 
00257     /* Distance of nearest industry of given type */
00258     case 0x64: return GetClosestIndustry(tile, MapNewGRFIndustryType(parameter, indspec->grf_prop.grffile->grfid), industry);
00259     /* Get town zone and Manhattan distance of closest town */
00260     case 0x65: return GetTownRadiusGroup(industry->town, tile) << 16 | min(DistanceManhattan(tile, industry->town->xy), 0xFFFF);
00261     /* Get square of Euclidian distance of closes town */
00262     case 0x66: return GetTownRadiusGroup(industry->town, tile) << 16 | min(DistanceSquare(tile, industry->town->xy), 0xFFFF);
00263 
00264     /* Count of industry, distance of closest instance
00265      * 68 is the same as 67, but with a filtering on selected layout */
00266     case 0x67:
00267     case 0x68: return GetCountAndDistanceOfClosestInstance(parameter, variable == 0x68 ? GB(GetRegister(0x101), 0, 8) : 0, industry);
00268 
00269     /* Get a variable from the persistent storage */
00270     case 0x7C: return industry->psa.Get(parameter);
00271 
00272     /* Industry structure access*/
00273     case 0x80: return industry->location.tile;
00274     case 0x81: return GB(industry->location.tile, 8, 8);
00275     /* Pointer to the town the industry is associated with */
00276     case 0x82: return industry->town->index;
00277     case 0x83:
00278     case 0x84:
00279     case 0x85: DEBUG(grf, 0, "NewGRFs shouldn't be doing pointer magic"); break; // not supported
00280     case 0x86: return industry->location.w;
00281     case 0x87: return industry->location.h;// xy dimensions
00282 
00283     case 0x88:
00284     case 0x89: return industry->produced_cargo[variable - 0x88];
00285     case 0x8A: return industry->produced_cargo_waiting[0];
00286     case 0x8B: return GB(industry->produced_cargo_waiting[0], 8, 8);
00287     case 0x8C: return industry->produced_cargo_waiting[1];
00288     case 0x8D: return GB(industry->produced_cargo_waiting[1], 8, 8);
00289     case 0x8E:
00290     case 0x8F: return industry->production_rate[variable - 0x8E];
00291     case 0x90:
00292     case 0x91:
00293     case 0x92: return industry->accepts_cargo[variable - 0x90];
00294     case 0x93: return industry->prod_level;
00295     /* amount of cargo produced so far THIS month. */
00296     case 0x94: return industry->this_month_production[0];
00297     case 0x95: return GB(industry->this_month_production[0], 8, 8);
00298     case 0x96: return industry->this_month_production[1];
00299     case 0x97: return GB(industry->this_month_production[1], 8, 8);
00300     /* amount of cargo transported so far THIS month. */
00301     case 0x98: return industry->this_month_transported[0];
00302     case 0x99: return GB(industry->this_month_transported[0], 8, 8);
00303     case 0x9A: return industry->this_month_transported[1];
00304     case 0x9B: return GB(industry->this_month_transported[1], 8, 8);
00305     /* fraction of cargo transported LAST month. */
00306     case 0x9C:
00307     case 0x9D: return industry->last_month_pct_transported[variable - 0x9C];
00308     /* amount of cargo produced LAST month. */
00309     case 0x9E: return industry->last_month_production[0];
00310     case 0x9F: return GB(industry->last_month_production[0], 8, 8);
00311     case 0xA0: return industry->last_month_production[1];
00312     case 0xA1: return GB(industry->last_month_production[1], 8, 8);
00313     /* amount of cargo transported last month. */
00314     case 0xA2: return industry->last_month_transported[0];
00315     case 0xA3: return GB(industry->last_month_transported[0], 8, 8);
00316     case 0xA4: return industry->last_month_transported[1];
00317     case 0xA5: return GB(industry->last_month_transported[1], 8, 8);
00318 
00319     case 0xA6: return industry->type;
00320     case 0xA7: return industry->founder;
00321     case 0xA8: return industry->random_colour;
00322     case 0xA9: return Clamp(industry->last_prod_year - ORIGINAL_BASE_YEAR, 0, 255);
00323     case 0xAA: return industry->counter;
00324     case 0xAB: return GB(industry->counter, 8, 8);
00325     case 0xAC: return industry->was_cargo_delivered;
00326 
00327     case 0xB0: return Clamp(industry->construction_date - DAYS_TILL_ORIGINAL_BASE_YEAR, 0, 65535); // Date when built since 1920 (in days)
00328     case 0xB3: return industry->construction_type; // Construction type
00329     case 0xB4: return Clamp(industry->last_cargo_accepted_at - DAYS_TILL_ORIGINAL_BASE_YEAR, 0, 65535); // Date last cargo accepted since 1920 (in days)
00330   }
00331 
00332   DEBUG(grf, 1, "Unhandled industry variable 0x%X", variable);
00333 
00334   *available = false;
00335   return UINT_MAX;
00336 }
00337 
00338 static const SpriteGroup *IndustryResolveReal(const ResolverObject *object, const RealSpriteGroup *group)
00339 {
00340   /* IndustryTile do not have 'real' groups */
00341   return NULL;
00342 }
00343 
00344 static uint32 IndustryGetRandomBits(const ResolverObject *object)
00345 {
00346   const Industry *ind = object->u.industry.ind;
00347   return ind != NULL ? ind->random: 0;
00348 }
00349 
00350 static uint32 IndustryGetTriggers(const ResolverObject *object)
00351 {
00352   const Industry *ind = object->u.industry.ind;
00353   return ind != NULL ? ind->random_triggers : 0;
00354 }
00355 
00356 static void IndustrySetTriggers(const ResolverObject *object, int triggers)
00357 {
00358   Industry *ind = object->u.industry.ind;
00359   assert(ind != NULL && ind->index != INVALID_INDUSTRY);
00360   ind->random_triggers = triggers;
00361 }
00362 
00363 static void NewIndustryResolver(ResolverObject *res, TileIndex tile, Industry *indus, IndustryType type)
00364 {
00365   res->GetRandomBits = IndustryGetRandomBits;
00366   res->GetTriggers   = IndustryGetTriggers;
00367   res->SetTriggers   = IndustrySetTriggers;
00368   res->GetVariable   = IndustryGetVariable;
00369   res->ResolveReal   = IndustryResolveReal;
00370 
00371   res->psa             = &indus->psa;
00372   res->u.industry.tile = tile;
00373   res->u.industry.ind  = indus;
00374   res->u.industry.gfx  = INVALID_INDUSTRYTILE;
00375   res->u.industry.type = type;
00376 
00377   res->callback        = CBID_NO_CALLBACK;
00378   res->callback_param1 = 0;
00379   res->callback_param2 = 0;
00380   res->last_value      = 0;
00381   res->trigger         = 0;
00382   res->reseed          = 0;
00383   res->count           = 0;
00384 
00385   const IndustrySpec *indspec = GetIndustrySpec(type);
00386   res->grffile         = (indspec != NULL ? indspec->grf_prop.grffile : NULL);
00387 }
00388 
00389 uint16 GetIndustryCallback(CallbackID callback, uint32 param1, uint32 param2, Industry *industry, IndustryType type, TileIndex tile)
00390 {
00391   ResolverObject object;
00392   const SpriteGroup *group;
00393 
00394   NewIndustryResolver(&object, tile, industry, type);
00395   object.callback = callback;
00396   object.callback_param1 = param1;
00397   object.callback_param2 = param2;
00398 
00399   group = SpriteGroup::Resolve(GetIndustrySpec(type)->grf_prop.spritegroup[0], &object);
00400   if (group == NULL) return CALLBACK_FAILED;
00401 
00402   return group->GetCallbackResult();
00403 }
00404 
00405 uint32 IndustryLocationGetVariable(const ResolverObject *object, byte variable, byte parameter, bool *available)
00406 {
00407   const Industry *industry = object->u.industry.ind;
00408   TileIndex tile = object->u.industry.tile;
00409 
00410   if (object->scope == VSG_SCOPE_PARENT) {
00411     return TownGetVariable(variable, parameter, available, industry->town);
00412   }
00413 
00414   switch (variable) {
00415     case 0x80: return tile;
00416     case 0x81: return GB(tile, 8, 8);
00417 
00418     /* Pointer to the town the industry is associated with */
00419     case 0x82: return industry->town->index;
00420     case 0x83:
00421     case 0x84:
00422     case 0x85: DEBUG(grf, 0, "NewGRFs shouldn't be doing pointer magic"); break; // not supported
00423 
00424     /* Number of the layout */
00425     case 0x86: return industry->selected_layout;
00426 
00427     /* Ground type */
00428     case 0x87: return GetTerrainType(tile);
00429 
00430     /* Town zone */
00431     case 0x88: return GetTownRadiusGroup(industry->town, tile);
00432 
00433     /* Manhattan distance of the closest town */
00434     case 0x89: return min(DistanceManhattan(industry->town->xy, tile), 255);
00435 
00436     /* Lowest height of the tile */
00437     case 0x8A: return GetTileZ(tile);
00438 
00439     /* Distance to the nearest water/land tile */
00440     case 0x8B: return GetClosestWaterDistance(tile, (GetIndustrySpec(industry->type)->behaviour & INDUSTRYBEH_BUILT_ONWATER) == 0);
00441 
00442     /* Square of Euclidian distance from town */
00443     case 0x8D: return min(DistanceSquare(industry->town->xy, tile), 65535);
00444 
00445     /* 32 random bits */
00446     case 0x8F: return _industry_creation_random_bits;
00447   }
00448 
00449   /* None of the special ones, so try the general ones */
00450   return IndustryGetVariable(object, variable, parameter, available);
00451 }
00452 
00464 CommandCost CheckIfCallBackAllowsCreation(TileIndex tile, IndustryType type, uint layout, uint32 seed, uint16 initial_random_bits, Owner founder, IndustryAvailabilityCallType creation_type)
00465 {
00466   const IndustrySpec *indspec = GetIndustrySpec(type);
00467 
00468   ResolverObject object;
00469   const SpriteGroup *group;
00470 
00471   Industry ind;
00472   ind.index = INVALID_INDUSTRY;
00473   ind.location.tile = tile;
00474   ind.location.w = 0; // important to mark the industry invalid
00475   ind.type = type;
00476   ind.selected_layout = layout;
00477   ind.town = ClosestTownFromTile(tile, UINT_MAX);
00478   ind.random = initial_random_bits;
00479   ind.founder = founder;
00480 
00481   NewIndustryResolver(&object, tile, &ind, type);
00482   object.GetVariable = IndustryLocationGetVariable;
00483   object.callback = CBID_INDUSTRY_LOCATION;
00484   object.callback_param2 = creation_type;
00485   _industry_creation_random_bits = seed;
00486 
00487   group = SpriteGroup::Resolve(GetIndustrySpec(type)->grf_prop.spritegroup[0], &object);
00488 
00489   /* Unlike the "normal" cases, not having a valid result means we allow
00490    * the building of the industry, as that's how it's done in TTDP. */
00491   if (group == NULL) return CommandCost();
00492   uint16 result = group->GetCallbackResult();
00493   if (result == 0x400 || result == CALLBACK_FAILED) return CommandCost();
00494 
00495   /* Copy some parameters from the registers to the error message text ref. stack */
00496   SwitchToErrorRefStack();
00497   PrepareTextRefStackUsage(4);
00498   SwitchToNormalRefStack();
00499 
00500   switch (result) {
00501     case 0x401: return_cmd_error(STR_ERROR_SITE_UNSUITABLE);
00502     case 0x402: return_cmd_error(STR_ERROR_CAN_ONLY_BE_BUILT_IN_RAINFOREST);
00503     case 0x403: return_cmd_error(STR_ERROR_CAN_ONLY_BE_BUILT_IN_DESERT);
00504     default:    return_cmd_error(GetGRFStringID(indspec->grf_prop.grffile->grfid, 0xD000 + result));
00505   }
00506   NOT_REACHED();
00507 }
00508 
00515 bool CheckIfCallBackAllowsAvailability(IndustryType type, IndustryAvailabilityCallType creation_type)
00516 {
00517   const IndustrySpec *indspec = GetIndustrySpec(type);
00518 
00519   if (HasBit(indspec->callback_mask, CBM_IND_AVAILABLE)) {
00520     uint16 res = GetIndustryCallback(CBID_INDUSTRY_AVAILABLE, 0, creation_type, NULL, type, INVALID_TILE);
00521     if (res != CALLBACK_FAILED) {
00522       return (res == 0);
00523     }
00524   }
00525   return true;
00526 }
00527 
00528 static int32 DerefIndProd(int field, bool use_register)
00529 {
00530   return use_register ? (int32)GetRegister(field) : field;
00531 }
00532 
00538 void IndustryProductionCallback(Industry *ind, int reason)
00539 {
00540   const IndustrySpec *spec = GetIndustrySpec(ind->type);
00541   ResolverObject object;
00542   NewIndustryResolver(&object, ind->location.tile, ind, ind->type);
00543   if ((spec->behaviour & INDUSTRYBEH_PRODCALLBACK_RANDOM) != 0) object.callback_param1 = Random();
00544   int multiplier = 1;
00545   if ((spec->behaviour & INDUSTRYBEH_PROD_MULTI_HNDLING) != 0) multiplier = ind->prod_level;
00546   object.callback_param2 = reason;
00547 
00548   for (uint loop = 0;; loop++) {
00549     /* limit the number of calls to break infinite loops.
00550      * 'loop' is provided as 16 bits to the newgrf, so abort when those are exceeded. */
00551     if (loop >= 0x10000) {
00552       /* display error message */
00553       SetDParamStr(0, spec->grf_prop.grffile->filename);
00554       SetDParam(1, spec->name);
00555       ShowErrorMessage(STR_NEWGRF_BUGGY, STR_NEWGRF_BUGGY_ENDLESS_PRODUCTION_CALLBACK, WL_WARNING);
00556 
00557       /* abort the function early, this error isn't critical and will allow the game to continue to run */
00558       break;
00559     }
00560 
00561     SB(object.callback_param2, 8, 16, loop);
00562     const SpriteGroup *tgroup = SpriteGroup::Resolve(spec->grf_prop.spritegroup[0], &object);
00563     if (tgroup == NULL || tgroup->type != SGT_INDUSTRY_PRODUCTION) break;
00564     const IndustryProductionSpriteGroup *group = (const IndustryProductionSpriteGroup *)tgroup;
00565 
00566     bool deref = (group->version == 1);
00567 
00568     for (uint i = 0; i < 3; i++) {
00569       ind->incoming_cargo_waiting[i] = Clamp(ind->incoming_cargo_waiting[i] - DerefIndProd(group->subtract_input[i], deref) * multiplier, 0, 0xFFFF);
00570     }
00571     for (uint i = 0; i < 2; i++) {
00572       ind->produced_cargo_waiting[i] = Clamp(ind->produced_cargo_waiting[i] + max(DerefIndProd(group->add_output[i], deref), 0) * multiplier, 0, 0xFFFF);
00573     }
00574 
00575     int32 again = DerefIndProd(group->again, deref);
00576     if (again == 0) break;
00577 
00578     SB(object.callback_param2, 24, 8, again);
00579   }
00580 
00581   SetWindowDirty(WC_INDUSTRY_VIEW, ind->index);
00582 }
00583 
00589 void GetIndustryResolver(ResolverObject *ro, uint index)
00590 {
00591   Industry *i = Industry::Get(index);
00592   NewIndustryResolver(ro, i->location.tile, i, i->type);
00593 }
00594 
00602 bool IndustryTemporarilyRefusesCargo(Industry *ind, CargoID cargo_type)
00603 {
00604   assert(cargo_type == ind->accepts_cargo[0] || cargo_type == ind->accepts_cargo[1] || cargo_type == ind->accepts_cargo[2]);
00605 
00606   const IndustrySpec *indspec = GetIndustrySpec(ind->type);
00607   if (HasBit(indspec->callback_mask, CBM_IND_REFUSE_CARGO)) {
00608     uint16 res = GetIndustryCallback(CBID_INDUSTRY_REFUSE_CARGO,
00609         0, GetReverseCargoTranslation(cargo_type, indspec->grf_prop.grffile),
00610         ind, ind->type, ind->location.tile);
00611     return res == 0;
00612   }
00613   return false;
00614 }

Generated on Sun Jan 23 01:49:05 2011 for OpenTTD by  doxygen 1.6.1