industry_cmd.cpp

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00001 /* $Id: industry_cmd.cpp 20869 2010-10-02 14:31:07Z 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 "clear_map.h"
00014 #include "industry.h"
00015 #include "station_base.h"
00016 #include "train.h"
00017 #include "landscape.h"
00018 #include "viewport_func.h"
00019 #include "command_func.h"
00020 #include "town.h"
00021 #include "news_func.h"
00022 #include "variables.h"
00023 #include "cheat_type.h"
00024 #include "genworld.h"
00025 #include "tree_map.h"
00026 #include "newgrf.h"
00027 #include "newgrf_cargo.h"
00028 #include "newgrf_commons.h"
00029 #include "newgrf_industries.h"
00030 #include "newgrf_industrytiles.h"
00031 #include "autoslope.h"
00032 #include "water.h"
00033 #include "strings_func.h"
00034 #include "functions.h"
00035 #include "window_func.h"
00036 #include "date_func.h"
00037 #include "vehicle_func.h"
00038 #include "sound_func.h"
00039 #include "animated_tile_func.h"
00040 #include "effectvehicle_func.h"
00041 #include "effectvehicle_base.h"
00042 #include "ai/ai.hpp"
00043 #include "core/pool_func.hpp"
00044 #include "subsidy_func.h"
00045 
00046 #include "table/strings.h"
00047 #include "table/industry_land.h"
00048 #include "table/build_industry.h"
00049 
00050 IndustryPool _industry_pool("Industry");
00051 INSTANTIATE_POOL_METHODS(Industry)
00052 
00053 void ShowIndustryViewWindow(int industry);
00054 void BuildOilRig(TileIndex tile);
00055 
00056 static byte _industry_sound_ctr;
00057 static TileIndex _industry_sound_tile;
00058 
00059 uint16 _industry_counts[NUM_INDUSTRYTYPES]; 
00060 
00061 IndustrySpec _industry_specs[NUM_INDUSTRYTYPES];
00062 IndustryTileSpec _industry_tile_specs[NUM_INDUSTRYTILES];
00063 
00068 void ResetIndustries()
00069 {
00070   memset(&_industry_specs, 0, sizeof(_industry_specs));
00071   memcpy(&_industry_specs, &_origin_industry_specs, sizeof(_origin_industry_specs));
00072 
00073   /* once performed, enable only the current climate industries */
00074   for (IndustryType i = 0; i < NUM_INDUSTRYTYPES; i++) {
00075     _industry_specs[i].enabled = i < NEW_INDUSTRYOFFSET &&
00076         HasBit(_origin_industry_specs[i].climate_availability, _settings_game.game_creation.landscape);
00077   }
00078 
00079   memset(&_industry_tile_specs, 0, sizeof(_industry_tile_specs));
00080   memcpy(&_industry_tile_specs, &_origin_industry_tile_specs, sizeof(_origin_industry_tile_specs));
00081 
00082   /* Reset any overrides that have been set. */
00083   _industile_mngr.ResetOverride();
00084   _industry_mngr.ResetOverride();
00085 }
00086 
00095 IndustryType GetIndustryType(TileIndex tile)
00096 {
00097   assert(IsTileType(tile, MP_INDUSTRY));
00098 
00099   const Industry *ind = Industry::GetByTile(tile);
00100   assert(ind != NULL);
00101   return ind->type;
00102 }
00103 
00112 const IndustrySpec *GetIndustrySpec(IndustryType thistype)
00113 {
00114   assert(thistype < NUM_INDUSTRYTYPES);
00115   return &_industry_specs[thistype];
00116 }
00117 
00126 const IndustryTileSpec *GetIndustryTileSpec(IndustryGfx gfx)
00127 {
00128   assert(gfx < INVALID_INDUSTRYTILE);
00129   return &_industry_tile_specs[gfx];
00130 }
00131 
00132 Industry::~Industry()
00133 {
00134   if (CleaningPool()) return;
00135 
00136   /* Industry can also be destroyed when not fully initialized.
00137    * This means that we do not have to clear tiles either. */
00138   if (this->location.w == 0) return;
00139 
00140   TILE_AREA_LOOP(tile_cur, this->location) {
00141     if (IsTileType(tile_cur, MP_INDUSTRY)) {
00142       if (GetIndustryIndex(tile_cur) == this->index) {
00143         /* MakeWaterKeepingClass() can also handle 'land' */
00144         MakeWaterKeepingClass(tile_cur, OWNER_NONE);
00145 
00146         /* MakeWaterKeepingClass() doesn't remove animation if the tiles
00147          * become watery, but be on the safe side an always remote it. */
00148         DeleteAnimatedTile(tile_cur);
00149 
00150         MarkTileDirtyByTile(tile_cur);
00151       }
00152     } else if (IsTileType(tile_cur, MP_STATION) && IsOilRig(tile_cur)) {
00153       DeleteOilRig(tile_cur);
00154     }
00155   }
00156 
00157   if (GetIndustrySpec(this->type)->behaviour & INDUSTRYBEH_PLANT_FIELDS) {
00158     /* Remove the farmland and convert it to regular tiles over time. */
00159     TILE_LOOP(tile_cur, 42, 42, this->location.tile - TileDiffXY(21, 21)) {
00160       tile_cur = TILE_MASK(tile_cur);
00161       if (IsTileType(tile_cur, MP_CLEAR) && IsClearGround(tile_cur, CLEAR_FIELDS) &&
00162           GetIndustryIndexOfField(tile_cur) == this->index) {
00163         SetIndustryIndexOfField(tile_cur, INVALID_INDUSTRY);
00164       }
00165     }
00166   }
00167 
00168   /* don't let any disaster vehicle target invalid industry */
00169   ReleaseDisastersTargetingIndustry(this->index);
00170 
00171   DecIndustryTypeCount(this->type);
00172 
00173   DeleteIndustryNews(this->index);
00174   DeleteWindowById(WC_INDUSTRY_VIEW, this->index);
00175 
00176   DeleteSubsidyWith(ST_INDUSTRY, this->index);
00177   CargoPacket::InvalidateAllFrom(ST_INDUSTRY, this->index);
00178 }
00179 
00184 void Industry::PostDestructor(size_t index)
00185 {
00186   InvalidateWindowData(WC_INDUSTRY_DIRECTORY, 0, 0);
00187   Station::RecomputeIndustriesNearForAll();
00188 }
00189 
00190 
00195 /* static */ Industry *Industry::GetRandom()
00196 {
00197   if (Industry::GetNumItems() == 0) return NULL;
00198   int num = RandomRange((uint16)Industry::GetNumItems());
00199   size_t index = MAX_UVALUE(size_t);
00200 
00201   while (num >= 0) {
00202     num--;
00203     index++;
00204 
00205     /* Make sure we have a valid industry */
00206     while (!Industry::IsValidID(index)) {
00207       index++;
00208       assert(index < Industry::GetPoolSize());
00209     }
00210   }
00211 
00212   return Industry::Get(index);
00213 }
00214 
00215 
00216 static void IndustryDrawSugarMine(const TileInfo *ti)
00217 {
00218   const DrawIndustryAnimationStruct *d;
00219 
00220   if (!IsIndustryCompleted(ti->tile)) return;
00221 
00222   d = &_draw_industry_spec1[GetIndustryAnimationState(ti->tile)];
00223 
00224   AddChildSpriteScreen(SPR_IT_SUGAR_MINE_SIEVE + d->image_1, PAL_NONE, d->x, 0);
00225 
00226   if (d->image_2 != 0) {
00227     AddChildSpriteScreen(SPR_IT_SUGAR_MINE_CLOUDS + d->image_2 - 1, PAL_NONE, 8, 41);
00228   }
00229 
00230   if (d->image_3 != 0) {
00231     AddChildSpriteScreen(SPR_IT_SUGAR_MINE_PILE + d->image_3 - 1, PAL_NONE,
00232       _drawtile_proc1[d->image_3 - 1].x, _drawtile_proc1[d->image_3 - 1].y);
00233   }
00234 }
00235 
00236 static void IndustryDrawToffeeQuarry(const TileInfo *ti)
00237 {
00238   uint8 x = 0;
00239 
00240   if (IsIndustryCompleted(ti->tile)) {
00241     x = _industry_anim_offs_toffee[GetIndustryAnimationState(ti->tile)];
00242     if (x == 0xFF)
00243       x = 0;
00244   }
00245 
00246   AddChildSpriteScreen(SPR_IT_TOFFEE_QUARRY_SHOVEL, PAL_NONE, 22 - x, 24 + x);
00247   AddChildSpriteScreen(SPR_IT_TOFFEE_QUARRY_TOFFEE, PAL_NONE, 6, 14);
00248 }
00249 
00250 static void IndustryDrawBubbleGenerator( const TileInfo *ti)
00251 {
00252   if (IsIndustryCompleted(ti->tile)) {
00253     AddChildSpriteScreen(SPR_IT_BUBBLE_GENERATOR_BUBBLE, PAL_NONE, 5, _industry_anim_offs_bubbles[GetIndustryAnimationState(ti->tile)]);
00254   } else {
00255     AddChildSpriteScreen(SPR_IT_BUBBLE_GENERATOR_SPRING, PAL_NONE, 3, 67);
00256   }
00257 }
00258 
00259 static void IndustryDrawToyFactory(const TileInfo *ti)
00260 {
00261   const DrawIndustryAnimationStruct *d;
00262 
00263   d = &_industry_anim_offs_toys[GetIndustryAnimationState(ti->tile)];
00264 
00265   if (d->image_1 != 0xFF) {
00266     AddChildSpriteScreen(SPR_IT_TOY_FACTORY_CLAY, PAL_NONE, d->x, 96 + d->image_1);
00267   }
00268 
00269   if (d->image_2 != 0xFF) {
00270     AddChildSpriteScreen(SPR_IT_TOY_FACTORY_ROBOT, PAL_NONE, 16 - d->image_2 * 2, 100 + d->image_2);
00271   }
00272 
00273   AddChildSpriteScreen(SPR_IT_TOY_FACTORY_STAMP, PAL_NONE, 7, d->image_3);
00274   AddChildSpriteScreen(SPR_IT_TOY_FACTORY_STAMP_HOLDER, PAL_NONE, 0, 42);
00275 }
00276 
00277 static void IndustryDrawCoalPlantSparks(const TileInfo *ti)
00278 {
00279   if (IsIndustryCompleted(ti->tile)) {
00280     uint8 image = GetIndustryAnimationState(ti->tile);
00281 
00282     if (image != 0 && image < 7) {
00283       AddChildSpriteScreen(image + SPR_IT_POWER_PLANT_TRANSFORMERS,
00284         PAL_NONE,
00285         _coal_plant_sparks[image - 1].x,
00286         _coal_plant_sparks[image - 1].y
00287       );
00288     }
00289   }
00290 }
00291 
00292 typedef void IndustryDrawTileProc(const TileInfo *ti);
00293 static IndustryDrawTileProc * const _industry_draw_tile_procs[5] = {
00294   IndustryDrawSugarMine,
00295   IndustryDrawToffeeQuarry,
00296   IndustryDrawBubbleGenerator,
00297   IndustryDrawToyFactory,
00298   IndustryDrawCoalPlantSparks,
00299 };
00300 
00301 static void DrawTile_Industry(TileInfo *ti)
00302 {
00303   IndustryGfx gfx = GetIndustryGfx(ti->tile);
00304   Industry *ind = Industry::GetByTile(ti->tile);
00305   const IndustryTileSpec *indts = GetIndustryTileSpec(gfx);
00306   const DrawBuildingsTileStruct *dits;
00307 
00308   /* Retrieve pointer to the draw industry tile struct */
00309   if (gfx >= NEW_INDUSTRYTILEOFFSET) {
00310     /* Draw the tile using the specialized method of newgrf industrytile.
00311      * DrawNewIndustry will return false if ever the resolver could not
00312      * find any sprite to display.  So in this case, we will jump on the
00313      * substitute gfx instead. */
00314     if (indts->grf_prop.spritegroup != NULL && DrawNewIndustryTile(ti, ind, gfx, indts)) {
00315       return;
00316     } else {
00317       /* No sprite group (or no valid one) found, meaning no graphics associated.
00318        * Use the substitute one instead */
00319       if (indts->grf_prop.subst_id != INVALID_INDUSTRYTILE) {
00320         gfx = indts->grf_prop.subst_id;
00321         /* And point the industrytile spec accordingly */
00322         indts = GetIndustryTileSpec(gfx);
00323       }
00324     }
00325   }
00326 
00327   dits = &_industry_draw_tile_data[gfx << 2 | (indts->anim_state ?
00328       GetIndustryAnimationState(ti->tile) & INDUSTRY_COMPLETED :
00329       GetIndustryConstructionStage(ti->tile))];
00330 
00331   SpriteID image = dits->ground.sprite;
00332 
00333   /* DrawFoundation() modifes ti->z and ti->tileh */
00334   if (ti->tileh != SLOPE_FLAT) DrawFoundation(ti, FOUNDATION_LEVELED);
00335 
00336   /* If the ground sprite is the default flat water sprite, draw also canal/river borders.
00337    * Do not do this if the tile's WaterClass is 'land'. */
00338   if (image == SPR_FLAT_WATER_TILE && IsIndustryTileOnWater(ti->tile)) {
00339     DrawWaterClassGround(ti);
00340   } else {
00341     DrawGroundSprite(image, GroundSpritePaletteTransform(image, dits->ground.pal, GENERAL_SPRITE_COLOUR(ind->random_colour)));
00342   }
00343 
00344   /* If industries are transparent and invisible, do not draw the upper part */
00345   if (IsInvisibilitySet(TO_INDUSTRIES)) return;
00346 
00347   /* Add industry on top of the ground? */
00348   image = dits->building.sprite;
00349   if (image != 0) {
00350     AddSortableSpriteToDraw(image, SpriteLayoutPaletteTransform(image, dits->building.pal, GENERAL_SPRITE_COLOUR(ind->random_colour)),
00351       ti->x + dits->subtile_x,
00352       ti->y + dits->subtile_y,
00353       dits->width,
00354       dits->height,
00355       dits->dz,
00356       ti->z,
00357       IsTransparencySet(TO_INDUSTRIES));
00358 
00359     if (IsTransparencySet(TO_INDUSTRIES)) return;
00360   }
00361 
00362   {
00363     int proc = dits->draw_proc - 1;
00364     if (proc >= 0) _industry_draw_tile_procs[proc](ti);
00365   }
00366 }
00367 
00368 static uint GetSlopeZ_Industry(TileIndex tile, uint x, uint y)
00369 {
00370   return GetTileMaxZ(tile);
00371 }
00372 
00373 static Foundation GetFoundation_Industry(TileIndex tile, Slope tileh)
00374 {
00375   IndustryGfx gfx = GetIndustryGfx(tile);
00376 
00377   /* For NewGRF industry tiles we might not be drawing a foundation. We need to
00378    * account for this, as other structures should
00379    * draw the wall of the foundation in this case.
00380    */
00381   if (gfx >= NEW_INDUSTRYTILEOFFSET) {
00382     const IndustryTileSpec *indts = GetIndustryTileSpec(gfx);
00383     if (indts->grf_prop.spritegroup != NULL && HasBit(indts->callback_mask, CBM_INDT_DRAW_FOUNDATIONS)) {
00384       uint32 callback_res = GetIndustryTileCallback(CBID_INDUSTRY_DRAW_FOUNDATIONS, 0, 0, gfx, Industry::GetByTile(tile), tile);
00385       if (callback_res == 0) return FOUNDATION_NONE;
00386     }
00387   }
00388   return FlatteningFoundation(tileh);
00389 }
00390 
00391 static void AddAcceptedCargo_Industry(TileIndex tile, CargoArray &acceptance, uint32 *always_accepted)
00392 {
00393   IndustryGfx gfx = GetIndustryGfx(tile);
00394   const IndustryTileSpec *itspec = GetIndustryTileSpec(gfx);
00395 
00396   /* When we have to use a callback, we put our data in the next two variables */
00397   CargoID raw_accepts_cargo[lengthof(itspec->accepts_cargo)];
00398   uint8 raw_cargo_acceptance[lengthof(itspec->acceptance)];
00399 
00400   /* And then these will always point to a same sized array with the required data */
00401   const CargoID *accepts_cargo = itspec->accepts_cargo;
00402   const uint8 *cargo_acceptance = itspec->acceptance;
00403 
00404   if (HasBit(itspec->callback_mask, CBM_INDT_ACCEPT_CARGO)) {
00405     uint16 res = GetIndustryTileCallback(CBID_INDTILE_ACCEPT_CARGO, 0, 0, gfx, Industry::GetByTile(tile), tile);
00406     if (res != CALLBACK_FAILED) {
00407       accepts_cargo = raw_accepts_cargo;
00408       for (uint i = 0; i < lengthof(itspec->accepts_cargo); i++) raw_accepts_cargo[i] = GetCargoTranslation(GB(res, i * 5, 5), itspec->grf_prop.grffile);
00409     }
00410   }
00411 
00412   if (HasBit(itspec->callback_mask, CBM_INDT_CARGO_ACCEPTANCE)) {
00413     uint16 res = GetIndustryTileCallback(CBID_INDTILE_CARGO_ACCEPTANCE, 0, 0, gfx, Industry::GetByTile(tile), tile);
00414     if (res != CALLBACK_FAILED) {
00415       cargo_acceptance = raw_cargo_acceptance;
00416       for (uint i = 0; i < lengthof(itspec->accepts_cargo); i++) raw_cargo_acceptance[i] = GB(res, i * 4, 4);
00417     }
00418   }
00419 
00420   const Industry *ind = Industry::GetByTile(tile);
00421   for (byte i = 0; i < lengthof(itspec->accepts_cargo); i++) {
00422     CargoID a = accepts_cargo[i];
00423     if (a == CT_INVALID || cargo_acceptance[i] == 0) continue; // work only with valid cargos
00424 
00425     /* Add accepted cargo */
00426     acceptance[a] += cargo_acceptance[i];
00427 
00428     /* Maybe set 'always accepted' bit (if it's not set already) */
00429     if (HasBit(*always_accepted, a)) continue;
00430 
00431     bool accepts = false;
00432     for (uint cargo_index = 0; cargo_index < lengthof(ind->accepts_cargo); cargo_index++) {
00433       /* Test whether the industry itself accepts the cargo type */
00434       if (ind->accepts_cargo[cargo_index] == a) {
00435         accepts = true;
00436         break;
00437       }
00438     }
00439 
00440     if (accepts) continue;
00441 
00442     /* If the industry itself doesn't accept this cargo, set 'always accepted' bit */
00443     SetBit(*always_accepted, a);
00444   }
00445 }
00446 
00447 static void GetTileDesc_Industry(TileIndex tile, TileDesc *td)
00448 {
00449   const Industry *i = Industry::GetByTile(tile);
00450   const IndustrySpec *is = GetIndustrySpec(i->type);
00451 
00452   td->owner[0] = i->owner;
00453   td->str = is->name;
00454   if (!IsIndustryCompleted(tile)) {
00455     SetDParamX(td->dparam, 0, td->str);
00456     td->str = STR_LAI_TOWN_INDUSTRY_DESCRIPTION_UNDER_CONSTRUCTION;
00457   }
00458 
00459   if (is->grf_prop.grffile != NULL) {
00460     td->grf = GetGRFConfig(is->grf_prop.grffile->grfid)->name;
00461   }
00462 }
00463 
00464 static CommandCost ClearTile_Industry(TileIndex tile, DoCommandFlag flags)
00465 {
00466   Industry *i = Industry::GetByTile(tile);
00467   const IndustrySpec *indspec = GetIndustrySpec(i->type);
00468 
00469   /* water can destroy industries
00470    * in editor you can bulldoze industries
00471    * with magic_bulldozer cheat you can destroy industries
00472    * (area around OILRIG is water, so water shouldn't flood it
00473    */
00474   if ((_current_company != OWNER_WATER && _game_mode != GM_EDITOR &&
00475       !_cheats.magic_bulldozer.value) ||
00476       ((flags & DC_AUTO) != 0) ||
00477       (_current_company == OWNER_WATER &&
00478         ((indspec->behaviour & INDUSTRYBEH_BUILT_ONWATER) ||
00479         HasBit(GetIndustryTileSpec(GetIndustryGfx(tile))->slopes_refused, 5)))) {
00480     SetDParam(1, indspec->name);
00481     return_cmd_error(flags & DC_AUTO ? STR_ERROR_UNMOVABLE_OBJECT_IN_THE_WAY : INVALID_STRING_ID);
00482   }
00483 
00484   if (flags & DC_EXEC) {
00485     AI::BroadcastNewEvent(new AIEventIndustryClose(i->index));
00486     delete i;
00487   }
00488   return CommandCost(EXPENSES_CONSTRUCTION, indspec->GetRemovalCost());
00489 }
00490 
00491 static void TransportIndustryGoods(TileIndex tile)
00492 {
00493   Industry *i = Industry::GetByTile(tile);
00494   const IndustrySpec *indspec = GetIndustrySpec(i->type);
00495   bool moved_cargo = false;
00496 
00497   StationFinder stations(i->location);
00498 
00499   for (uint j = 0; j < lengthof(i->produced_cargo_waiting); j++) {
00500     uint cw = min(i->produced_cargo_waiting[j], 255);
00501     if (cw > indspec->minimal_cargo && i->produced_cargo[j] != CT_INVALID) {
00502       i->produced_cargo_waiting[j] -= cw;
00503 
00504       /* fluctuating economy? */
00505       if (_economy.fluct <= 0) cw = (cw + 1) / 2;
00506 
00507       i->this_month_production[j] += cw;
00508 
00509       uint am = MoveGoodsToStation(i->produced_cargo[j], cw, ST_INDUSTRY, i->index, stations.GetStations());
00510       i->this_month_transported[j] += am;
00511 
00512       moved_cargo |= (am != 0);
00513     }
00514   }
00515 
00516   if (moved_cargo && !StartStopIndustryTileAnimation(i, IAT_INDUSTRY_DISTRIBUTES_CARGO)) {
00517     uint newgfx = GetIndustryTileSpec(GetIndustryGfx(tile))->anim_production;
00518 
00519     if (newgfx != INDUSTRYTILE_NOANIM) {
00520       ResetIndustryConstructionStage(tile);
00521       SetIndustryCompleted(tile, true);
00522       SetIndustryGfx(tile, newgfx);
00523       MarkTileDirtyByTile(tile);
00524     }
00525   }
00526 }
00527 
00528 
00529 static void AnimateTile_Industry(TileIndex tile)
00530 {
00531   byte m;
00532   IndustryGfx gfx = GetIndustryGfx(tile);
00533 
00534   if (GetIndustryTileSpec(gfx)->animation_info != 0xFFFF) {
00535     AnimateNewIndustryTile(tile);
00536     return;
00537   }
00538 
00539   switch (gfx) {
00540   case GFX_SUGAR_MINE_SIEVE:
00541     if ((_tick_counter & 1) == 0) {
00542       m = GetIndustryAnimationState(tile) + 1;
00543 
00544       switch (m & 7) {
00545       case 2: SndPlayTileFx(SND_2D_RIP_2, tile); break;
00546       case 6: SndPlayTileFx(SND_29_RIP, tile); break;
00547       }
00548 
00549       if (m >= 96) {
00550         m = 0;
00551         DeleteAnimatedTile(tile);
00552       }
00553       SetIndustryAnimationState(tile, m);
00554 
00555       MarkTileDirtyByTile(tile);
00556     }
00557     break;
00558 
00559   case GFX_TOFFEE_QUARY:
00560     if ((_tick_counter & 3) == 0) {
00561       m = GetIndustryAnimationState(tile);
00562 
00563       if (_industry_anim_offs_toffee[m] == 0xFF) {
00564         SndPlayTileFx(SND_30_CARTOON_SOUND, tile);
00565       }
00566 
00567       if (++m >= 70) {
00568         m = 0;
00569         DeleteAnimatedTile(tile);
00570       }
00571       SetIndustryAnimationState(tile, m);
00572 
00573       MarkTileDirtyByTile(tile);
00574     }
00575     break;
00576 
00577   case GFX_BUBBLE_CATCHER:
00578     if ((_tick_counter & 1) == 0) {
00579       m = GetIndustryAnimationState(tile);
00580 
00581       if (++m >= 40) {
00582         m = 0;
00583         DeleteAnimatedTile(tile);
00584       }
00585       SetIndustryAnimationState(tile, m);
00586 
00587       MarkTileDirtyByTile(tile);
00588     }
00589     break;
00590 
00591   /* Sparks on a coal plant */
00592   case GFX_POWERPLANT_SPARKS:
00593     if ((_tick_counter & 3) == 0) {
00594       m = GetIndustryAnimationState(tile);
00595       if (m == 6) {
00596         SetIndustryAnimationState(tile, 0);
00597         DeleteAnimatedTile(tile);
00598       } else {
00599         SetIndustryAnimationState(tile, m + 1);
00600         MarkTileDirtyByTile(tile);
00601       }
00602     }
00603     break;
00604 
00605   case GFX_TOY_FACTORY:
00606     if ((_tick_counter & 1) == 0) {
00607       m = GetIndustryAnimationState(tile) + 1;
00608 
00609       switch (m) {
00610         case  1: SndPlayTileFx(SND_2C_MACHINERY, tile); break;
00611         case 23: SndPlayTileFx(SND_2B_COMEDY_HIT, tile); break;
00612         case 28: SndPlayTileFx(SND_2A_EXTRACT_AND_POP, tile); break;
00613         default:
00614           if (m >= 50) {
00615             int n = GetIndustryAnimationLoop(tile) + 1;
00616             m = 0;
00617             if (n >= 8) {
00618               n = 0;
00619               DeleteAnimatedTile(tile);
00620             }
00621             SetIndustryAnimationLoop(tile, n);
00622           }
00623       }
00624 
00625       SetIndustryAnimationState(tile, m);
00626       MarkTileDirtyByTile(tile);
00627     }
00628     break;
00629 
00630   case GFX_PLASTIC_FOUNTAIN_ANIMATED_1: case GFX_PLASTIC_FOUNTAIN_ANIMATED_2:
00631   case GFX_PLASTIC_FOUNTAIN_ANIMATED_3: case GFX_PLASTIC_FOUNTAIN_ANIMATED_4:
00632   case GFX_PLASTIC_FOUNTAIN_ANIMATED_5: case GFX_PLASTIC_FOUNTAIN_ANIMATED_6:
00633   case GFX_PLASTIC_FOUNTAIN_ANIMATED_7: case GFX_PLASTIC_FOUNTAIN_ANIMATED_8:
00634     if ((_tick_counter & 3) == 0) {
00635       IndustryGfx gfx = GetIndustryGfx(tile);
00636 
00637       gfx = (gfx < 155) ? gfx + 1 : 148;
00638       SetIndustryGfx(tile, gfx);
00639       MarkTileDirtyByTile(tile);
00640     }
00641     break;
00642 
00643   case GFX_OILWELL_ANIMATED_1:
00644   case GFX_OILWELL_ANIMATED_2:
00645   case GFX_OILWELL_ANIMATED_3:
00646     if ((_tick_counter & 7) == 0) {
00647       bool b = Chance16(1, 7);
00648       IndustryGfx gfx = GetIndustryGfx(tile);
00649 
00650       m = GetIndustryAnimationState(tile) + 1;
00651       if (m == 4 && (m = 0, ++gfx) == GFX_OILWELL_ANIMATED_3 + 1 && (gfx = GFX_OILWELL_ANIMATED_1, b)) {
00652         SetIndustryGfx(tile, GFX_OILWELL_NOT_ANIMATED);
00653         SetIndustryConstructionStage(tile, 3);
00654         DeleteAnimatedTile(tile);
00655       } else {
00656         SetIndustryAnimationState(tile, m);
00657         SetIndustryGfx(tile, gfx);
00658         MarkTileDirtyByTile(tile);
00659       }
00660     }
00661     break;
00662 
00663   case GFX_COAL_MINE_TOWER_ANIMATED:
00664   case GFX_COPPER_MINE_TOWER_ANIMATED:
00665   case GFX_GOLD_MINE_TOWER_ANIMATED: {
00666       int state = _tick_counter & 0x7FF;
00667 
00668       if ((state -= 0x400) < 0)
00669         return;
00670 
00671       if (state < 0x1A0) {
00672         if (state < 0x20 || state >= 0x180) {
00673           m = GetIndustryAnimationState(tile);
00674           if (!(m & 0x40)) {
00675             SetIndustryAnimationState(tile, m | 0x40);
00676             SndPlayTileFx(SND_0B_MINING_MACHINERY, tile);
00677           }
00678           if (state & 7)
00679             return;
00680         } else {
00681           if (state & 3)
00682             return;
00683         }
00684         m = (GetIndustryAnimationState(tile) + 1) | 0x40;
00685         if (m > 0xC2) m = 0xC0;
00686         SetIndustryAnimationState(tile, m);
00687         MarkTileDirtyByTile(tile);
00688       } else if (state >= 0x200 && state < 0x3A0) {
00689         int i;
00690         i = (state < 0x220 || state >= 0x380) ? 7 : 3;
00691         if (state & i)
00692           return;
00693 
00694         m = (GetIndustryAnimationState(tile) & 0xBF) - 1;
00695         if (m < 0x80) m = 0x82;
00696         SetIndustryAnimationState(tile, m);
00697         MarkTileDirtyByTile(tile);
00698       }
00699     } break;
00700   }
00701 }
00702 
00703 static void CreateChimneySmoke(TileIndex tile)
00704 {
00705   uint x = TileX(tile) * TILE_SIZE;
00706   uint y = TileY(tile) * TILE_SIZE;
00707   uint z = GetTileMaxZ(tile);
00708 
00709   CreateEffectVehicle(x + 15, y + 14, z + 59, EV_CHIMNEY_SMOKE);
00710 }
00711 
00712 static void MakeIndustryTileBigger(TileIndex tile)
00713 {
00714   byte cnt = GetIndustryConstructionCounter(tile) + 1;
00715   byte stage;
00716 
00717   if (cnt != 4) {
00718     SetIndustryConstructionCounter(tile, cnt);
00719     return;
00720   }
00721 
00722   stage = GetIndustryConstructionStage(tile) + 1;
00723   SetIndustryConstructionCounter(tile, 0);
00724   SetIndustryConstructionStage(tile, stage);
00725   StartStopIndustryTileAnimation(tile, IAT_CONSTRUCTION_STATE_CHANGE);
00726   if (stage == INDUSTRY_COMPLETED) SetIndustryCompleted(tile, true);
00727 
00728   MarkTileDirtyByTile(tile);
00729 
00730   if (!IsIndustryCompleted(tile)) return;
00731 
00732   IndustryGfx gfx = GetIndustryGfx(tile);
00733   if (gfx >= NEW_INDUSTRYTILEOFFSET) {
00734     /* New industries are already animated on construction. */
00735     return;
00736   }
00737 
00738   switch (gfx) {
00739   case GFX_POWERPLANT_CHIMNEY:
00740     CreateChimneySmoke(tile);
00741     break;
00742 
00743   case GFX_OILRIG_1: {
00744     /* Do not require an industry tile to be after the first two GFX_OILRIG_1
00745      * tiles (like the default oil rig). Do a proper check to ensure the
00746      * tiles belong to the same industry and based on that build the oil rig's
00747      * station. */
00748     TileIndex other = tile + TileDiffXY(0, 1);
00749 
00750     if (IsTileType(other, MP_INDUSTRY) &&
00751         GetIndustryGfx(other) == GFX_OILRIG_1 &&
00752         GetIndustryIndex(tile) == GetIndustryIndex(other)) {
00753       BuildOilRig(tile);
00754     }
00755   } break;
00756 
00757   case GFX_TOY_FACTORY:
00758   case GFX_BUBBLE_CATCHER:
00759   case GFX_TOFFEE_QUARY:
00760     SetIndustryAnimationState(tile, 0);
00761     SetIndustryAnimationLoop(tile, 0);
00762     break;
00763 
00764   case GFX_PLASTIC_FOUNTAIN_ANIMATED_1: case GFX_PLASTIC_FOUNTAIN_ANIMATED_2:
00765   case GFX_PLASTIC_FOUNTAIN_ANIMATED_3: case GFX_PLASTIC_FOUNTAIN_ANIMATED_4:
00766   case GFX_PLASTIC_FOUNTAIN_ANIMATED_5: case GFX_PLASTIC_FOUNTAIN_ANIMATED_6:
00767   case GFX_PLASTIC_FOUNTAIN_ANIMATED_7: case GFX_PLASTIC_FOUNTAIN_ANIMATED_8:
00768     AddAnimatedTile(tile);
00769     break;
00770   }
00771 }
00772 
00773 static void TileLoopIndustry_BubbleGenerator(TileIndex tile)
00774 {
00775   static const int8 _bubble_spawn_location[3][4] = {
00776     { 11,   0, -4, -14 },
00777     { -4, -10, -4,   1 },
00778     { 49,  59, 60,  65 },
00779   };
00780 
00781   SndPlayTileFx(SND_2E_EXTRACT_AND_POP, tile);
00782 
00783   int dir = Random() & 3;
00784 
00785   EffectVehicle *v = CreateEffectVehicleAbove(
00786     TileX(tile) * TILE_SIZE + _bubble_spawn_location[0][dir],
00787     TileY(tile) * TILE_SIZE + _bubble_spawn_location[1][dir],
00788     _bubble_spawn_location[2][dir],
00789     EV_BUBBLE
00790   );
00791 
00792   if (v != NULL) v->animation_substate = dir;
00793 }
00794 
00795 static void TileLoop_Industry(TileIndex tile)
00796 {
00797   IndustryGfx newgfx;
00798   IndustryGfx gfx;
00799 
00800   if (IsIndustryTileOnWater(tile)) TileLoop_Water(tile);
00801 
00802   /* Normally this doesn't happen, but if an industry NewGRF is removed
00803    * an industry that was previously build on water can now be flooded.
00804    * If this happens the tile is no longer an industry tile after
00805    * returning from TileLoop_Water. */
00806   if (!IsTileType(tile, MP_INDUSTRY)) return;
00807 
00808   TriggerIndustryTile(tile, INDTILE_TRIGGER_TILE_LOOP);
00809 
00810   if (!IsIndustryCompleted(tile)) {
00811     MakeIndustryTileBigger(tile);
00812     return;
00813   }
00814 
00815   if (_game_mode == GM_EDITOR) return;
00816 
00817   TransportIndustryGoods(tile);
00818 
00819   if (StartStopIndustryTileAnimation(tile, IAT_TILELOOP)) return;
00820 
00821   newgfx = GetIndustryTileSpec(GetIndustryGfx(tile))->anim_next;
00822   if (newgfx != INDUSTRYTILE_NOANIM) {
00823     ResetIndustryConstructionStage(tile);
00824     SetIndustryGfx(tile, newgfx);
00825     MarkTileDirtyByTile(tile);
00826     return;
00827   }
00828 
00829   gfx = GetIndustryGfx(tile);
00830 
00831   switch (gfx) {
00832   case GFX_COAL_MINE_TOWER_NOT_ANIMATED:
00833   case GFX_COPPER_MINE_TOWER_NOT_ANIMATED:
00834   case GFX_GOLD_MINE_TOWER_NOT_ANIMATED:
00835     if (!(_tick_counter & 0x400) && Chance16(1, 2)) {
00836       switch (gfx) {
00837         case GFX_COAL_MINE_TOWER_NOT_ANIMATED:   gfx = GFX_COAL_MINE_TOWER_ANIMATED;   break;
00838         case GFX_COPPER_MINE_TOWER_NOT_ANIMATED: gfx = GFX_COPPER_MINE_TOWER_ANIMATED; break;
00839         case GFX_GOLD_MINE_TOWER_NOT_ANIMATED:   gfx = GFX_GOLD_MINE_TOWER_ANIMATED;   break;
00840       }
00841       SetIndustryGfx(tile, gfx);
00842       SetIndustryAnimationState(tile, 0x80);
00843       AddAnimatedTile(tile);
00844     }
00845     break;
00846 
00847   case GFX_OILWELL_NOT_ANIMATED:
00848     if (Chance16(1, 6)) {
00849       SetIndustryGfx(tile, GFX_OILWELL_ANIMATED_1);
00850       SetIndustryAnimationState(tile, 0);
00851       AddAnimatedTile(tile);
00852     }
00853     break;
00854 
00855   case GFX_COAL_MINE_TOWER_ANIMATED:
00856   case GFX_COPPER_MINE_TOWER_ANIMATED:
00857   case GFX_GOLD_MINE_TOWER_ANIMATED:
00858     if (!(_tick_counter & 0x400)) {
00859       switch (gfx) {
00860         case GFX_COAL_MINE_TOWER_ANIMATED:   gfx = GFX_COAL_MINE_TOWER_NOT_ANIMATED;   break;
00861         case GFX_COPPER_MINE_TOWER_ANIMATED: gfx = GFX_COPPER_MINE_TOWER_NOT_ANIMATED; break;
00862         case GFX_GOLD_MINE_TOWER_ANIMATED:   gfx = GFX_GOLD_MINE_TOWER_NOT_ANIMATED;   break;
00863       }
00864       SetIndustryGfx(tile, gfx);
00865       SetIndustryCompleted(tile, true);
00866       SetIndustryConstructionStage(tile, 3);
00867       DeleteAnimatedTile(tile);
00868     }
00869     break;
00870 
00871   case GFX_POWERPLANT_SPARKS:
00872     if (Chance16(1, 3)) {
00873       SndPlayTileFx(SND_0C_ELECTRIC_SPARK, tile);
00874       AddAnimatedTile(tile);
00875     }
00876     break;
00877 
00878   case GFX_COPPER_MINE_CHIMNEY:
00879     CreateEffectVehicleAbove(TileX(tile) * TILE_SIZE + 6, TileY(tile) * TILE_SIZE + 6, 43, EV_SMOKE);
00880     break;
00881 
00882 
00883   case GFX_TOY_FACTORY: {
00884       Industry *i = Industry::GetByTile(tile);
00885       if (i->was_cargo_delivered) {
00886         i->was_cargo_delivered = false;
00887         SetIndustryAnimationLoop(tile, 0);
00888         AddAnimatedTile(tile);
00889       }
00890     }
00891     break;
00892 
00893   case GFX_BUBBLE_GENERATOR:
00894     TileLoopIndustry_BubbleGenerator(tile);
00895     break;
00896 
00897   case GFX_TOFFEE_QUARY:
00898     AddAnimatedTile(tile);
00899     break;
00900 
00901   case GFX_SUGAR_MINE_SIEVE:
00902     if (Chance16(1, 3)) AddAnimatedTile(tile);
00903     break;
00904   }
00905 }
00906 
00907 static bool ClickTile_Industry(TileIndex tile)
00908 {
00909   ShowIndustryViewWindow(GetIndustryIndex(tile));
00910   return true;
00911 }
00912 
00913 static TrackStatus GetTileTrackStatus_Industry(TileIndex tile, TransportType mode, uint sub_mode, DiagDirection side)
00914 {
00915   return 0;
00916 }
00917 
00918 static void ChangeTileOwner_Industry(TileIndex tile, Owner old_owner, Owner new_owner)
00919 {
00920   /* If the founder merges, the industry was created by the merged company */
00921   Industry *i = Industry::GetByTile(tile);
00922   if (i->founder == old_owner) i->founder = (new_owner == INVALID_OWNER) ? OWNER_NONE : new_owner;
00923 }
00924 
00925 static const byte _plantfarmfield_type[] = {1, 1, 1, 1, 1, 3, 3, 4, 4, 4, 5, 5, 5, 6, 6, 6};
00926 
00927 static bool IsBadFarmFieldTile(TileIndex tile)
00928 {
00929   switch (GetTileType(tile)) {
00930     case MP_CLEAR: return IsClearGround(tile, CLEAR_FIELDS) || IsClearGround(tile, CLEAR_SNOW) || IsClearGround(tile, CLEAR_DESERT);
00931     case MP_TREES: return (GetTreeGround(tile) == TREE_GROUND_SHORE);
00932     default:       return true;
00933   }
00934 }
00935 
00936 static bool IsBadFarmFieldTile2(TileIndex tile)
00937 {
00938   switch (GetTileType(tile)) {
00939     case MP_CLEAR: return IsClearGround(tile, CLEAR_SNOW) || IsClearGround(tile, CLEAR_DESERT);
00940     case MP_TREES: return (GetTreeGround(tile) == TREE_GROUND_SHORE);
00941     default:       return true;
00942   }
00943 }
00944 
00945 static void SetupFarmFieldFence(TileIndex tile, int size, byte type, Axis direction)
00946 {
00947   do {
00948     tile = TILE_MASK(tile);
00949 
00950     if (IsTileType(tile, MP_CLEAR) || IsTileType(tile, MP_TREES)) {
00951       byte or_ = type;
00952 
00953       if (or_ == 1 && Chance16(1, 7)) or_ = 2;
00954 
00955       if (direction == AXIS_X) {
00956         SetFenceSE(tile, or_);
00957       } else {
00958         SetFenceSW(tile, or_);
00959       }
00960     }
00961 
00962     tile += (direction == AXIS_X ? TileDiffXY(1, 0) : TileDiffXY(0, 1));
00963   } while (--size);
00964 }
00965 
00966 static void PlantFarmField(TileIndex tile, IndustryID industry)
00967 {
00968   uint size_x, size_y;
00969   uint32 r;
00970   uint count;
00971   uint counter;
00972   uint field_type;
00973   int type;
00974 
00975   if (_settings_game.game_creation.landscape == LT_ARCTIC) {
00976     if (GetTileZ(tile) + TILE_HEIGHT * 2 >= GetSnowLine())
00977       return;
00978   }
00979 
00980   /* determine field size */
00981   r = (Random() & 0x303) + 0x404;
00982   if (_settings_game.game_creation.landscape == LT_ARCTIC) r += 0x404;
00983   size_x = GB(r, 0, 8);
00984   size_y = GB(r, 8, 8);
00985 
00986   /* offset tile to match size */
00987   tile -= TileDiffXY(size_x / 2, size_y / 2);
00988 
00989   if (TileX(tile) + size_x >= MapSizeX() || TileY(tile) + size_y >= MapSizeY()) return;
00990 
00991   /* check the amount of bad tiles */
00992   count = 0;
00993   TILE_LOOP(cur_tile, size_x, size_y, tile) {
00994     assert(cur_tile < MapSize());
00995     count += IsBadFarmFieldTile(cur_tile);
00996   }
00997   if (count * 2 >= size_x * size_y) return;
00998 
00999   /* determine type of field */
01000   r = Random();
01001   counter = GB(r, 5, 3);
01002   field_type = GB(r, 8, 8) * 9 >> 8;
01003 
01004   /* make field */
01005   TILE_LOOP(cur_tile, size_x, size_y, tile) {
01006     assert(cur_tile < MapSize());
01007     if (!IsBadFarmFieldTile2(cur_tile)) {
01008       MakeField(cur_tile, field_type, industry);
01009       SetClearCounter(cur_tile, counter);
01010       MarkTileDirtyByTile(cur_tile);
01011     }
01012   }
01013 
01014   type = 3;
01015   if (_settings_game.game_creation.landscape != LT_ARCTIC && _settings_game.game_creation.landscape != LT_TROPIC) {
01016     type = _plantfarmfield_type[Random() & 0xF];
01017   }
01018 
01019   SetupFarmFieldFence(tile - TileDiffXY(1, 0), size_y, type, AXIS_Y);
01020   SetupFarmFieldFence(tile - TileDiffXY(0, 1), size_x, type, AXIS_X);
01021   SetupFarmFieldFence(tile + TileDiffXY(size_x - 1, 0), size_y, type, AXIS_Y);
01022   SetupFarmFieldFence(tile + TileDiffXY(0, size_y - 1), size_x, type, AXIS_X);
01023 }
01024 
01025 void PlantRandomFarmField(const Industry *i)
01026 {
01027   int x = i->location.w / 2 + Random() % 31 - 16;
01028   int y = i->location.h / 2 + Random() % 31 - 16;
01029 
01030   TileIndex tile = TileAddWrap(i->location.tile, x, y);
01031 
01032   if (tile != INVALID_TILE) PlantFarmField(tile, i->index);
01033 }
01034 
01041 static bool SearchLumberMillTrees(TileIndex tile, void *user_data)
01042 {
01043   if (IsTileType(tile, MP_TREES) && GetTreeGrowth(tile) > 2) { 
01044     CompanyID old_company = _current_company;
01045     /* found a tree */
01046 
01047     _current_company = OWNER_NONE;
01048     _industry_sound_ctr = 1;
01049     _industry_sound_tile = tile;
01050     SndPlayTileFx(SND_38_CHAINSAW, tile);
01051 
01052     DoCommand(tile, 0, 0, DC_EXEC, CMD_LANDSCAPE_CLEAR);
01053 
01054     _current_company = old_company;
01055     return true;
01056   }
01057   return false;
01058 }
01059 
01064 static void ChopLumberMillTrees(Industry *i)
01065 {
01066   TileIndex tile = i->location.tile;
01067 
01068   if (!IsIndustryCompleted(tile)) return;  
01069 
01070   if (CircularTileSearch(&tile, 40, SearchLumberMillTrees, NULL)) 
01071     i->produced_cargo_waiting[0] = min(0xffff, i->produced_cargo_waiting[0] + 45); 
01072 }
01073 
01074 static void ProduceIndustryGoods(Industry *i)
01075 {
01076   uint32 r;
01077   uint num;
01078   const IndustrySpec *indsp = GetIndustrySpec(i->type);
01079 
01080   /* play a sound? */
01081   if ((i->counter & 0x3F) == 0) {
01082     if (Chance16R(1, 14, r) && (num = indsp->number_of_sounds) != 0) {
01083       SndPlayTileFx(
01084         (SoundFx)(indsp->random_sounds[((r >> 16) * num) >> 16]),
01085         i->location.tile);
01086     }
01087   }
01088 
01089   i->counter--;
01090 
01091   /* produce some cargo */
01092   if ((i->counter & 0xFF) == 0) {
01093     if (HasBit(indsp->callback_mask, CBM_IND_PRODUCTION_256_TICKS)) IndustryProductionCallback(i, 1);
01094 
01095     IndustryBehaviour indbehav = indsp->behaviour;
01096     i->produced_cargo_waiting[0] = min(0xffff, i->produced_cargo_waiting[0] + i->production_rate[0]);
01097     i->produced_cargo_waiting[1] = min(0xffff, i->produced_cargo_waiting[1] + i->production_rate[1]);
01098 
01099     if ((indbehav & INDUSTRYBEH_PLANT_FIELDS) != 0) {
01100       bool plant;
01101       if (HasBit(indsp->callback_mask, CBM_IND_SPECIAL_EFFECT)) {
01102         plant = (GetIndustryCallback(CBID_INDUSTRY_SPECIAL_EFFECT, Random(), 0, i, i->type, i->location.tile) != 0);
01103       } else {
01104         plant = Chance16(1, 8);
01105       }
01106 
01107       if (plant) PlantRandomFarmField(i);
01108     }
01109     if ((indbehav & INDUSTRYBEH_CUT_TREES) != 0) {
01110       bool cut = ((i->counter & 0x1FF) == 0);
01111       if (HasBit(indsp->callback_mask, CBM_IND_SPECIAL_EFFECT)) {
01112         cut = (GetIndustryCallback(CBID_INDUSTRY_SPECIAL_EFFECT, 0, 1, i, i->type, i->location.tile) != 0);
01113       }
01114 
01115       if (cut) ChopLumberMillTrees(i);
01116     }
01117 
01118     TriggerIndustry(i, INDUSTRY_TRIGGER_INDUSTRY_TICK);
01119     StartStopIndustryTileAnimation(i, IAT_INDUSTRY_TICK);
01120   }
01121 }
01122 
01123 void OnTick_Industry()
01124 {
01125   Industry *i;
01126 
01127   if (_industry_sound_ctr != 0) {
01128     _industry_sound_ctr++;
01129 
01130     if (_industry_sound_ctr == 75) {
01131       SndPlayTileFx(SND_37_BALLOON_SQUEAK, _industry_sound_tile);
01132     } else if (_industry_sound_ctr == 160) {
01133       _industry_sound_ctr = 0;
01134       SndPlayTileFx(SND_36_CARTOON_CRASH, _industry_sound_tile);
01135     }
01136   }
01137 
01138   if (_game_mode == GM_EDITOR) return;
01139 
01140   FOR_ALL_INDUSTRIES(i) {
01141     ProduceIndustryGoods(i);
01142   }
01143 }
01144 
01149 static bool CheckNewIndustry_NULL(TileIndex tile)
01150 {
01151   return true;
01152 }
01153 
01158 static bool CheckNewIndustry_Forest(TileIndex tile)
01159 {
01160   if (_settings_game.game_creation.landscape == LT_ARCTIC) {
01161     if (GetTileZ(tile) < HighestSnowLine() + TILE_HEIGHT * 2U) {
01162       _error_message = STR_ERROR_FOREST_CAN_ONLY_BE_PLANTED;
01163       return false;
01164     }
01165   }
01166   return true;
01167 }
01168 
01173 static bool CheckNewIndustry_OilRefinery(TileIndex tile)
01174 {
01175   if (_game_mode == GM_EDITOR) return true;
01176   if (DistanceFromEdge(TILE_ADDXY(tile, 1, 1)) < _settings_game.game_creation.oil_refinery_limit) return true;
01177 
01178   _error_message = STR_ERROR_CAN_ONLY_BE_POSITIONED;
01179   return false;
01180 }
01181 
01182 extern bool _ignore_restrictions;
01183 
01188 static bool CheckNewIndustry_OilRig(TileIndex tile)
01189 {
01190   if (_game_mode == GM_EDITOR && _ignore_restrictions) return true;
01191   if (TileHeight(tile) == 0 &&
01192       DistanceFromEdge(TILE_ADDXY(tile, 1, 1)) < _settings_game.game_creation.oil_refinery_limit) return true;
01193 
01194   _error_message = STR_ERROR_CAN_ONLY_BE_POSITIONED;
01195   return false;
01196 }
01197 
01202 static bool CheckNewIndustry_Farm(TileIndex tile)
01203 {
01204   if (_settings_game.game_creation.landscape == LT_ARCTIC) {
01205     if (GetTileZ(tile) + TILE_HEIGHT * 2 >= HighestSnowLine()) {
01206       _error_message = STR_ERROR_SITE_UNSUITABLE;
01207       return false;
01208     }
01209   }
01210   return true;
01211 }
01212 
01217 static bool CheckNewIndustry_Plantation(TileIndex tile)
01218 {
01219   if (GetTropicZone(tile) == TROPICZONE_DESERT) {
01220     _error_message = STR_ERROR_SITE_UNSUITABLE;
01221     return false;
01222   }
01223 
01224   return true;
01225 }
01226 
01231 static bool CheckNewIndustry_Water(TileIndex tile)
01232 {
01233   if (GetTropicZone(tile) != TROPICZONE_DESERT) {
01234     _error_message = STR_ERROR_CAN_ONLY_BE_BUILT_IN_DESERT;
01235     return false;
01236   }
01237 
01238   return true;
01239 }
01240 
01245 static bool CheckNewIndustry_Lumbermill(TileIndex tile)
01246 {
01247   if (GetTropicZone(tile) != TROPICZONE_RAINFOREST) {
01248     _error_message = STR_ERROR_CAN_ONLY_BE_BUILT_IN_RAINFOREST;
01249     return false;
01250   }
01251   return true;
01252 }
01253 
01258 static bool CheckNewIndustry_BubbleGen(TileIndex tile)
01259 {
01260   if (GetTileZ(tile) > TILE_HEIGHT * 4) {
01261     _error_message = STR_ERROR_CAN_ONLY_BE_BUILT_IN_LOW_AREAS;
01262     return false;
01263   }
01264   return true;
01265 }
01266 
01271 typedef bool CheckNewIndustryProc(TileIndex tile);
01272 
01274 static CheckNewIndustryProc * const _check_new_industry_procs[CHECK_END] = {
01275   CheckNewIndustry_NULL,        
01276   CheckNewIndustry_Forest,      
01277   CheckNewIndustry_OilRefinery, 
01278   CheckNewIndustry_Farm,        
01279   CheckNewIndustry_Plantation,  
01280   CheckNewIndustry_Water,       
01281   CheckNewIndustry_Lumbermill,  
01282   CheckNewIndustry_BubbleGen,   
01283   CheckNewIndustry_OilRig,      
01284 };
01285 
01292 static const Town *FindTownForIndustry(TileIndex tile, int type)
01293 {
01294   const Town *t;
01295   const Industry *i;
01296 
01297   t = ClosestTownFromTile(tile, UINT_MAX);
01298 
01299   if (_settings_game.economy.multiple_industry_per_town) return t;
01300 
01301   FOR_ALL_INDUSTRIES(i) {
01302     if (i->type == (byte)type &&
01303         i->town == t) {
01304       _error_message = STR_ERROR_ONLY_ONE_ALLOWED_PER_TOWN;
01305       return NULL;
01306     }
01307   }
01308 
01309   return t;
01310 }
01311 
01312 bool IsSlopeRefused(Slope current, Slope refused)
01313 {
01314   if (IsSteepSlope(current)) return true;
01315   if (current != SLOPE_FLAT) {
01316     if (IsSteepSlope(refused)) return true;
01317 
01318     Slope t = ComplementSlope(current);
01319 
01320     if ((refused & SLOPE_W) && (t & SLOPE_NW)) return true;
01321     if ((refused & SLOPE_S) && (t & SLOPE_NE)) return true;
01322     if ((refused & SLOPE_E) && (t & SLOPE_SW)) return true;
01323     if ((refused & SLOPE_N) && (t & SLOPE_SE)) return true;
01324   }
01325 
01326   return false;
01327 }
01328 
01329 static bool CheckIfIndustryTilesAreFree(TileIndex tile, const IndustryTileTable *it, uint itspec_index, int type, bool *custom_shape_check = NULL)
01330 {
01331   _error_message = STR_ERROR_SITE_UNSUITABLE;
01332   bool refused_slope = false;
01333   bool custom_shape = false;
01334 
01335   do {
01336     IndustryGfx gfx = GetTranslatedIndustryTileID(it->gfx);
01337     TileIndex cur_tile = TileAddWrap(tile, it->ti.x, it->ti.y);
01338 
01339     if (!IsValidTile(cur_tile)) {
01340       return false;
01341     }
01342 
01343     if (gfx == GFX_WATERTILE_SPECIALCHECK) {
01344       if (!IsTileType(cur_tile, MP_WATER) ||
01345           GetTileSlope(cur_tile, NULL) != SLOPE_FLAT) {
01346         return false;
01347       }
01348     } else {
01349       if (!EnsureNoVehicleOnGround(cur_tile)) return false;
01350       if (MayHaveBridgeAbove(cur_tile) && IsBridgeAbove(cur_tile)) return false;
01351 
01352       const IndustryTileSpec *its = GetIndustryTileSpec(gfx);
01353 
01354       IndustryBehaviour ind_behav = GetIndustrySpec(type)->behaviour;
01355 
01356       /* Perform land/water check if not disabled */
01357       if (!HasBit(its->slopes_refused, 5) && (IsWaterTile(cur_tile) == !(ind_behav & INDUSTRYBEH_BUILT_ONWATER))) return false;
01358 
01359       if (HasBit(its->callback_mask, CBM_INDT_SHAPE_CHECK)) {
01360         custom_shape = true;
01361         if (!PerformIndustryTileSlopeCheck(tile, cur_tile, its, type, gfx, itspec_index)) return false;
01362       } else {
01363         Slope tileh = GetTileSlope(cur_tile, NULL);
01364         refused_slope |= IsSlopeRefused(tileh, its->slopes_refused);
01365       }
01366 
01367       if ((ind_behav & (INDUSTRYBEH_ONLY_INTOWN | INDUSTRYBEH_TOWN1200_MORE)) || // Tile must be a house
01368           ((ind_behav & INDUSTRYBEH_ONLY_NEARTOWN) && IsTileType(cur_tile, MP_HOUSE))) { // Tile is allowed to be a house (and it is a house)
01369         if (!IsTileType(cur_tile, MP_HOUSE)) {
01370           _error_message = STR_ERROR_CAN_ONLY_BE_BUILT_IN_TOWNS;
01371           return false;
01372         }
01373 
01374         /* Clear the tiles as OWNER_TOWN to not affect town rating, and to not clear protected buildings */
01375         CompanyID old_company = _current_company;
01376         _current_company = OWNER_TOWN;
01377         bool not_clearable = DoCommand(cur_tile, 0, 0, DC_NONE, CMD_LANDSCAPE_CLEAR).Failed();
01378         _current_company = old_company;
01379 
01380         if (not_clearable) return false;
01381       } else {
01382         /* Clear the tiles, but do not affect town ratings */
01383         bool not_clearable = DoCommand(cur_tile, 0, 0, DC_AUTO | DC_NO_TEST_TOWN_RATING | DC_NO_MODIFY_TOWN_RATING, CMD_LANDSCAPE_CLEAR).Failed();
01384 
01385         if (not_clearable) return false;
01386       }
01387     }
01388   } while ((++it)->ti.x != -0x80);
01389 
01390   if (custom_shape_check != NULL) *custom_shape_check = custom_shape;
01391 
01392   /* It is almost impossible to have a fully flat land in TG, so what we
01393    *  do is that we check if we can make the land flat later on. See
01394    *  CheckIfCanLevelIndustryPlatform(). */
01395   return !refused_slope || (_settings_game.game_creation.land_generator == LG_TERRAGENESIS && _generating_world && !custom_shape && !_ignore_restrictions);
01396 }
01397 
01398 static bool CheckIfIndustryIsAllowed(TileIndex tile, int type, const Town *t)
01399 {
01400   if ((GetIndustrySpec(type)->behaviour & INDUSTRYBEH_TOWN1200_MORE) && t->population < 1200) {
01401     _error_message = STR_ERROR_CAN_ONLY_BE_BUILT_IN_TOWNS_WITH_POPULATION_OF_1200;
01402     return false;
01403   }
01404 
01405   if ((GetIndustrySpec(type)->behaviour & INDUSTRYBEH_ONLY_NEARTOWN) && DistanceMax(t->xy, tile) > 9) {
01406     _error_message = STR_ERROR_SITE_UNSUITABLE;
01407     return false;
01408   }
01409 
01410   return true;
01411 }
01412 
01413 static bool CheckCanTerraformSurroundingTiles(TileIndex tile, uint height, int internal)
01414 {
01415   int size_x, size_y;
01416   uint curh;
01417 
01418   size_x = 2;
01419   size_y = 2;
01420 
01421   /* Check if we don't leave the map */
01422   if (TileX(tile) == 0 || TileY(tile) == 0 || GetTileType(tile) == MP_VOID) return false;
01423 
01424   tile += TileDiffXY(-1, -1);
01425   TILE_LOOP(tile_walk, size_x, size_y, tile) {
01426     curh = TileHeight(tile_walk);
01427     /* Is the tile clear? */
01428     if ((GetTileType(tile_walk) != MP_CLEAR) && (GetTileType(tile_walk) != MP_TREES))
01429       return false;
01430 
01431     /* Don't allow too big of a change if this is the sub-tile check */
01432     if (internal != 0 && Delta(curh, height) > 1) return false;
01433 
01434     /* Different height, so the surrounding tiles of this tile
01435      *  has to be correct too (in level, or almost in level)
01436      *  else you get a chain-reaction of terraforming. */
01437     if (internal == 0 && curh != height) {
01438       if (TileX(tile_walk) == 0 || TileY(tile_walk) == 0 || !CheckCanTerraformSurroundingTiles(tile_walk + TileDiffXY(-1, -1), height, internal + 1))
01439         return false;
01440     }
01441   }
01442 
01443   return true;
01444 }
01445 
01450 static bool CheckIfCanLevelIndustryPlatform(TileIndex tile, DoCommandFlag flags, const IndustryTileTable *it, int type)
01451 {
01452   const int MKEND = -0x80;   // used for last element in an IndustryTileTable (see build_industry.h)
01453   int max_x = 0;
01454   int max_y = 0;
01455   TileIndex cur_tile;
01456   uint size_x, size_y;
01457   uint h, curh;
01458 
01459   /* Finds dimensions of largest variant of this industry */
01460   do {
01461     if (it->gfx == 0xFF) continue;  //  FF been a marquer for a check on clear water, skip it
01462     if (it->ti.x > max_x) max_x = it->ti.x;
01463     if (it->ti.y > max_y) max_y = it->ti.y;
01464   } while ((++it)->ti.x != MKEND);
01465 
01466   /* Remember level height */
01467   h = TileHeight(tile);
01468 
01469   if (TileX(tile) <= 1 || TileY(tile) <= 1) return false;
01470   /* Check that all tiles in area and surrounding are clear
01471    * this determines that there are no obstructing items */
01472   cur_tile = tile + TileDiffXY(-1, -1);
01473   size_x = max_x + 4;
01474   size_y = max_y + 4;
01475 
01476   /* Check if we don't leave the map */
01477   if (TileX(cur_tile) + size_x >= MapMaxX() || TileY(cur_tile) + size_y >= MapMaxY()) return false;
01478 
01479   /* _current_company is OWNER_NONE for randomly generated industries and in editor, or the company who funded or prospected the industry.
01480    * Perform terraforming as OWNER_TOWN to disable autoslope and town ratings. */
01481   CompanyID old_company = _current_company;
01482   _current_company = OWNER_TOWN;
01483 
01484   TILE_LOOP(tile_walk, size_x, size_y, cur_tile) {
01485     curh = TileHeight(tile_walk);
01486     if (curh != h) {
01487       /* This tile needs terraforming. Check if we can do that without
01488        *  damaging the surroundings too much. */
01489       if (!CheckCanTerraformSurroundingTiles(tile_walk, h, 0)) {
01490         _current_company = old_company;
01491         return false;
01492       }
01493       /* This is not 100% correct check, but the best we can do without modifying the map.
01494        *  What is missing, is if the difference in height is more than 1.. */
01495       if (DoCommand(tile_walk, SLOPE_N, (curh > h) ? 0 : 1, flags & ~DC_EXEC, CMD_TERRAFORM_LAND).Failed()) {
01496         _current_company = old_company;
01497         return false;
01498       }
01499     }
01500   }
01501 
01502   if (flags & DC_EXEC) {
01503     /* Terraform the land under the industry */
01504     TILE_LOOP(tile_walk, size_x, size_y, cur_tile) {
01505       curh = TileHeight(tile_walk);
01506       while (curh != h) {
01507         /* We give the terraforming for free here, because we can't calculate
01508          *  exact cost in the test-round, and as we all know, that will cause
01509          *  a nice assert if they don't match ;) */
01510         DoCommand(tile_walk, SLOPE_N, (curh > h) ? 0 : 1, flags, CMD_TERRAFORM_LAND);
01511         curh += (curh > h) ? -1 : 1;
01512       }
01513     }
01514   }
01515 
01516   _current_company = old_company;
01517   return true;
01518 }
01519 
01520 
01521 static bool CheckIfFarEnoughFromConflictingIndustry(TileIndex tile, int type)
01522 {
01523   const IndustrySpec *indspec = GetIndustrySpec(type);
01524   const Industry *i;
01525   FOR_ALL_INDUSTRIES(i) {
01526     /* Within 14 tiles from another industry is considered close */
01527     bool in_low_distance = DistanceMax(tile, i->location.tile) <= 14;
01528 
01529     /* check if there are any conflicting industry types around */
01530     if ((i->type == indspec->conflicting[0] ||
01531         i->type == indspec->conflicting[1] ||
01532         i->type == indspec->conflicting[2]) &&
01533         in_low_distance) {
01534       _error_message = STR_ERROR_INDUSTRY_TOO_CLOSE;
01535       return false;
01536     }
01537   }
01538   return true;
01539 }
01540 
01544 enum ProductionLevels {
01545   PRODLEVEL_CLOSURE = 0x00,  
01546   PRODLEVEL_MINIMUM = 0x04,  
01547   PRODLEVEL_DEFAULT = 0x10,  
01548   PRODLEVEL_MAXIMUM = 0x80,  
01549 };
01550 
01551 static void DoCreateNewIndustry(Industry *i, TileIndex tile, int type, const IndustryTileTable *it, byte layout, const Town *t, Owner owner, Owner founder)
01552 {
01553   const IndustrySpec *indspec = GetIndustrySpec(type);
01554   uint32 r;
01555   uint j;
01556 
01557   i->location = TileArea(tile, 1, 1);
01558   i->type = type;
01559   IncIndustryTypeCount(type);
01560 
01561   i->produced_cargo[0] = indspec->produced_cargo[0];
01562   i->produced_cargo[1] = indspec->produced_cargo[1];
01563   i->accepts_cargo[0] = indspec->accepts_cargo[0];
01564   i->accepts_cargo[1] = indspec->accepts_cargo[1];
01565   i->accepts_cargo[2] = indspec->accepts_cargo[2];
01566   i->production_rate[0] = indspec->production_rate[0];
01567   i->production_rate[1] = indspec->production_rate[1];
01568 
01569   /* don't use smooth economy for industries using production related callbacks */
01570   if (_settings_game.economy.smooth_economy &&
01571       !(HasBit(indspec->callback_mask, CBM_IND_PRODUCTION_256_TICKS) || HasBit(indspec->callback_mask, CBM_IND_PRODUCTION_CARGO_ARRIVAL)) && // production callbacks
01572       !(HasBit(indspec->callback_mask, CBM_IND_MONTHLYPROD_CHANGE) || HasBit(indspec->callback_mask, CBM_IND_PRODUCTION_CHANGE))             // production change callbacks
01573   ) {
01574     i->production_rate[0] = min((RandomRange(256) + 128) * i->production_rate[0] >> 8, 255);
01575     i->production_rate[1] = min((RandomRange(256) + 128) * i->production_rate[1] >> 8, 255);
01576   }
01577 
01578   i->town = t;
01579   i->owner = owner;
01580 
01581   r = Random();
01582   i->random_colour = GB(r, 0, 4);
01583   i->counter = GB(r, 4, 12);
01584   i->random = GB(r, 16, 16);
01585   i->produced_cargo_waiting[0] = 0;
01586   i->produced_cargo_waiting[1] = 0;
01587   i->incoming_cargo_waiting[0] = 0;
01588   i->incoming_cargo_waiting[1] = 0;
01589   i->incoming_cargo_waiting[2] = 0;
01590   i->this_month_production[0] = 0;
01591   i->this_month_production[1] = 0;
01592   i->this_month_transported[0] = 0;
01593   i->this_month_transported[1] = 0;
01594   i->last_month_pct_transported[0] = 0;
01595   i->last_month_pct_transported[1] = 0;
01596   i->last_month_transported[0] = 0;
01597   i->last_month_transported[1] = 0;
01598   i->was_cargo_delivered = false;
01599   i->last_prod_year = _cur_year;
01600   i->last_month_production[0] = i->production_rate[0] * 8;
01601   i->last_month_production[1] = i->production_rate[1] * 8;
01602   i->founder = founder;
01603 
01604   if (HasBit(indspec->callback_mask, CBM_IND_DECIDE_COLOUR)) {
01605     uint16 res = GetIndustryCallback(CBID_INDUSTRY_DECIDE_COLOUR, 0, 0, i, type, INVALID_TILE);
01606     if (res != CALLBACK_FAILED) i->random_colour = GB(res, 0, 4);
01607   }
01608 
01609   if (HasBit(indspec->callback_mask, CBM_IND_INPUT_CARGO_TYPES)) {
01610     for (j = 0; j < lengthof(i->accepts_cargo); j++) i->accepts_cargo[j] = CT_INVALID;
01611     for (j = 0; j < lengthof(i->accepts_cargo); j++) {
01612       uint16 res = GetIndustryCallback(CBID_INDUSTRY_INPUT_CARGO_TYPES, j, 0, i, type, INVALID_TILE);
01613       if (res == CALLBACK_FAILED || GB(res, 0, 8) == CT_INVALID) break;
01614       i->accepts_cargo[j] = GetCargoTranslation(GB(res, 0, 8), indspec->grf_prop.grffile);
01615     }
01616   }
01617 
01618   if (HasBit(indspec->callback_mask, CBM_IND_OUTPUT_CARGO_TYPES)) {
01619     for (j = 0; j < lengthof(i->produced_cargo); j++) i->produced_cargo[j] = CT_INVALID;
01620     for (j = 0; j < lengthof(i->produced_cargo); j++) {
01621       uint16 res = GetIndustryCallback(CBID_INDUSTRY_OUTPUT_CARGO_TYPES, j, 0, i, type, INVALID_TILE);
01622       if (res == CALLBACK_FAILED || GB(res, 0, 8) == CT_INVALID) break;
01623       i->produced_cargo[j] = GetCargoTranslation(GB(res, 0, 8), indspec->grf_prop.grffile);
01624     }
01625   }
01626 
01627   i->construction_date = _date;
01628   i->construction_type = (_game_mode == GM_EDITOR) ? ICT_SCENARIO_EDITOR :
01629       (_generating_world ? ICT_MAP_GENERATION : ICT_NORMAL_GAMEPLAY);
01630 
01631   /* Adding 1 here makes it conform to specs of var44 of varaction2 for industries
01632    * 0 = created prior of newindustries
01633    * else, chosen layout + 1 */
01634   i->selected_layout = layout + 1;
01635 
01636   if (!_generating_world) i->last_month_production[0] = i->last_month_production[1] = 0;
01637 
01638   i->prod_level = PRODLEVEL_DEFAULT;
01639 
01640   do {
01641     TileIndex cur_tile = tile + ToTileIndexDiff(it->ti);
01642 
01643     if (it->gfx != GFX_WATERTILE_SPECIALCHECK) {
01644       i->location.Add(cur_tile);
01645 
01646       WaterClass wc = (IsWaterTile(cur_tile) ? GetWaterClass(cur_tile) : WATER_CLASS_INVALID);
01647 
01648       DoCommand(cur_tile, 0, 0, DC_EXEC | DC_NO_TEST_TOWN_RATING | DC_NO_MODIFY_TOWN_RATING, CMD_LANDSCAPE_CLEAR);
01649 
01650       MakeIndustry(cur_tile, i->index, it->gfx, Random(), wc);
01651 
01652       if (_generating_world) {
01653         SetIndustryConstructionCounter(cur_tile, 3);
01654         SetIndustryConstructionStage(cur_tile, 2);
01655       }
01656 
01657       /* it->gfx is stored in the map. But the translated ID cur_gfx is the interesting one */
01658       IndustryGfx cur_gfx = GetTranslatedIndustryTileID(it->gfx);
01659       const IndustryTileSpec *its = GetIndustryTileSpec(cur_gfx);
01660       if (its->animation_info != 0xFFFF) AddAnimatedTile(cur_tile);
01661     }
01662   } while ((++it)->ti.x != -0x80);
01663 
01664   if (GetIndustrySpec(i->type)->behaviour & INDUSTRYBEH_PLANT_ON_BUILT) {
01665     for (j = 0; j != 50; j++) PlantRandomFarmField(i);
01666   }
01667   InvalidateWindowData(WC_INDUSTRY_DIRECTORY, 0, 0);
01668 
01669   Station::RecomputeIndustriesNearForAll();
01670 }
01671 
01682 static Industry *CreateNewIndustryHelper(TileIndex tile, IndustryType type, DoCommandFlag flags, const IndustrySpec *indspec, uint itspec_index, uint32 seed, Owner founder)
01683 {
01684   assert(itspec_index < indspec->num_table);
01685   const IndustryTileTable *it = indspec->table[itspec_index];
01686   bool custom_shape_check = false;
01687 
01688   if (!CheckIfIndustryTilesAreFree(tile, it, itspec_index, type, &custom_shape_check)) return NULL;
01689 
01690   if (HasBit(GetIndustrySpec(type)->callback_mask, CBM_IND_LOCATION)) {
01691     if (!CheckIfCallBackAllowsCreation(tile, type, itspec_index, seed)) return NULL;
01692   } else {
01693     if (!_check_new_industry_procs[indspec->check_proc](tile)) return NULL;
01694   }
01695 
01696   if (!custom_shape_check && _settings_game.game_creation.land_generator == LG_TERRAGENESIS && _generating_world && !_ignore_restrictions && !CheckIfCanLevelIndustryPlatform(tile, DC_NO_WATER, it, type)) return NULL;
01697   if (!CheckIfFarEnoughFromConflictingIndustry(tile, type)) return NULL;
01698 
01699   const Town *t = FindTownForIndustry(tile, type);
01700   if (t == NULL) return NULL;
01701 
01702   if (!CheckIfIndustryIsAllowed(tile, type, t)) return NULL;
01703 
01704   if (!Industry::CanAllocateItem()) return NULL;
01705 
01706   if (flags & DC_EXEC) {
01707     Industry *i = new Industry(tile);
01708     if (!custom_shape_check) CheckIfCanLevelIndustryPlatform(tile, DC_NO_WATER | DC_EXEC, it, type);
01709     DoCreateNewIndustry(i, tile, type, it, itspec_index, t, OWNER_NONE, founder);
01710 
01711     return i;
01712   }
01713 
01714   /* We need to return a non-NULL pointer to tell we have created an industry.
01715    * However, we haven't created a real one (no DC_EXEC), so return a fake one. */
01716   return (Industry *)-1;
01717 }
01718 
01729 CommandCost CmdBuildIndustry(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01730 {
01731   IndustryType it = GB(p1, 0, 8);
01732   if (it >= NUM_INDUSTRYTYPES) return CMD_ERROR;
01733 
01734   const IndustrySpec *indspec = GetIndustrySpec(it);
01735 
01736   /* Check if the to-be built/founded industry is available for this climate. */
01737   if (!indspec->enabled || indspec->num_table == 0) return CMD_ERROR;
01738 
01739   /* If the setting for raw-material industries is not on, you cannot build raw-material industries.
01740    * Raw material industries are industries that do not accept cargo (at least for now) */
01741   if (_game_mode != GM_EDITOR && _settings_game.construction.raw_industry_construction == 0 && indspec->IsRawIndustry()) {
01742     return CMD_ERROR;
01743   }
01744 
01745   if (_game_mode != GM_EDITOR && !CheckIfCallBackAllowsAvailability(it, IACT_USERCREATION)) {
01746     return CMD_ERROR;
01747   }
01748 
01749   const Industry *ind = NULL;
01750   if (_game_mode != GM_EDITOR && _settings_game.construction.raw_industry_construction == 2 && indspec->IsRawIndustry()) {
01751     if (flags & DC_EXEC) {
01752       /* Prospected industries are build as OWNER_TOWN to not e.g. be build on owned land of the founder */
01753       CompanyID founder = _current_company;
01754       _current_company = OWNER_TOWN;
01755       /* Prospecting has a chance to fail, however we cannot guarantee that something can
01756        * be built on the map, so the chance gets lower when the map is fuller, but there
01757        * is nothing we can really do about that. */
01758       if (Random() <= indspec->prospecting_chance) {
01759         for (int i = 0; i < 5000; i++) {
01760           /* We should not have more than one Random() in a function call
01761            * because parameter evaluation order is not guaranteed in the c++ standard
01762            */
01763           tile = RandomTile();
01764           ind = CreateNewIndustryHelper(tile, it, flags, indspec, RandomRange(indspec->num_table), p2, founder);
01765           if (ind != NULL) {
01766             break;
01767           }
01768         }
01769       }
01770       _current_company = founder;
01771     }
01772   } else {
01773     int count = indspec->num_table;
01774     const IndustryTileTable * const *itt = indspec->table;
01775     int num = GB(p1, 8, 8);
01776     if (num >= count) return CMD_ERROR;
01777 
01778     _error_message = STR_ERROR_SITE_UNSUITABLE;
01779     do {
01780       if (--count < 0) return CMD_ERROR;
01781       if (--num < 0) num = indspec->num_table - 1;
01782     } while (!CheckIfIndustryTilesAreFree(tile, itt[num], num, it));
01783 
01784     ind = CreateNewIndustryHelper(tile, it, flags, indspec, num, p2, _current_company);
01785     if (ind == NULL) return CMD_ERROR;
01786   }
01787 
01788   if ((flags & DC_EXEC) && _game_mode != GM_EDITOR && ind != NULL) {
01789     SetDParam(0, indspec->name);
01790     if (indspec->new_industry_text > STR_LAST_STRINGID) {
01791       SetDParam(1, STR_TOWN_NAME);
01792       SetDParam(2, ind->town->index);
01793     } else {
01794       SetDParam(1, ind->town->index);
01795     }
01796     AddIndustryNewsItem(indspec->new_industry_text, NS_INDUSTRY_OPEN, ind->index);
01797     AI::BroadcastNewEvent(new AIEventIndustryOpen(ind->index));
01798   }
01799 
01800   return CommandCost(EXPENSES_OTHER, indspec->GetConstructionCost());
01801 }
01802 
01803 
01804 static Industry *CreateNewIndustry(TileIndex tile, IndustryType type)
01805 {
01806   const IndustrySpec *indspec = GetIndustrySpec(type);
01807 
01808   uint32 seed = Random();
01809   return CreateNewIndustryHelper(tile, type, DC_EXEC, indspec, RandomRange(indspec->num_table), seed, OWNER_NONE);
01810 }
01811 
01818 static uint32 GetScaledIndustryProbability(IndustryType it, bool *force_at_least_one)
01819 {
01820   const IndustrySpec *ind_spc = GetIndustrySpec(it);
01821   uint32 chance = ind_spc->appear_creation[_settings_game.game_creation.landscape] * 16; // * 16 to increase precision
01822   if (!ind_spc->enabled || chance == 0 || ind_spc->num_table == 0 ||
01823       !CheckIfCallBackAllowsAvailability(it, IACT_MAPGENERATION) ||
01824       (_game_mode != GM_EDITOR && _settings_game.difficulty.number_industries == 0)) {
01825     *force_at_least_one = false;
01826     return 0;
01827   } else {
01828     /* We want industries appearing at coast to appear less often on bigger maps, as length of coast increases slower than map area.
01829      * For simplicity we scale in both cases, though scaling the probabilities of all industries has no effect. */
01830     chance = (ind_spc->check_proc == CHECK_REFINERY || ind_spc->check_proc == CHECK_OIL_RIG) ? ScaleByMapSize1D(chance) : ScaleByMapSize(chance);
01831 
01832     *force_at_least_one = (chance > 0) && !(ind_spc->behaviour & INDUSTRYBEH_NOBUILT_MAPCREATION) && (_game_mode != GM_EDITOR);
01833     return chance;
01834   }
01835 }
01836 
01838 static const byte _numof_industry_table[]= {
01839   0,    // none
01840   10,   // very low
01841   25,   // low
01842   55,   // normal
01843   80,   // high
01844 };
01845 
01851 static void PlaceInitialIndustry(IndustryType type, bool try_hard)
01852 {
01853   CompanyID old_company = _current_company;
01854   _current_company = OWNER_NONE;
01855 
01856   IncreaseGeneratingWorldProgress(GWP_INDUSTRY);
01857 
01858   for (uint i = 0; i < (try_hard ? 10000u : 2000u); i++) {
01859     if (CreateNewIndustry(RandomTile(), type) != NULL) break;
01860   }
01861 
01862   _current_company = old_company;
01863 }
01864 
01869 void GenerateIndustries()
01870 {
01871   assert(_settings_game.difficulty.number_industries < lengthof(_numof_industry_table));
01872   uint difficulty = (_game_mode != GM_EDITOR) ? _settings_game.difficulty.number_industries : 1;
01873   uint total_amount = ScaleByMapSize(_numof_industry_table[difficulty]);
01874 
01875   /* Do not create any industries? */
01876   if (total_amount == 0) return;
01877 
01878   uint32 industry_probs[NUM_INDUSTRYTYPES];
01879   bool force_at_least_one[NUM_INDUSTRYTYPES];
01880   uint32 total_prob = 0;
01881   uint num_forced = 0;
01882 
01883   for (IndustryType it = 0; it < NUM_INDUSTRYTYPES; it++) {
01884     industry_probs[it] = GetScaledIndustryProbability(it, force_at_least_one + it);
01885     total_prob += industry_probs[it];
01886     if (force_at_least_one[it]) num_forced++;
01887   }
01888 
01889   if (total_prob == 0 || total_amount < num_forced) {
01890     /* Only place the forced ones */
01891     total_amount = num_forced;
01892   }
01893 
01894   SetGeneratingWorldProgress(GWP_INDUSTRY, total_amount);
01895 
01896   /* Try to build one industry per type independent of any probabilities */
01897   for (IndustryType it = 0; it < NUM_INDUSTRYTYPES; it++) {
01898     if (force_at_least_one[it]) {
01899       assert(total_amount > 0);
01900       total_amount--;
01901       PlaceInitialIndustry(it, true);
01902     }
01903   }
01904 
01905   /* Add the remaining industries according to their probabilities */
01906   for (uint i = 0; i < total_amount; i++) {
01907     uint32 r = RandomRange(total_prob);
01908     IndustryType it = 0;
01909     while (it < NUM_INDUSTRYTYPES && r >= industry_probs[it]) {
01910       r -= industry_probs[it];
01911       it++;
01912     }
01913     assert(it < NUM_INDUSTRYTYPES && industry_probs[it] > 0);
01914     PlaceInitialIndustry(it, false);
01915   }
01916 }
01917 
01918 static void UpdateIndustryStatistics(Industry *i)
01919 {
01920   for (byte j = 0; j < lengthof(i->produced_cargo); j++) {
01921     if (i->produced_cargo[j] != CT_INVALID) {
01922       byte pct = 0;
01923       if (i->this_month_production[j] != 0) {
01924         i->last_prod_year = _cur_year;
01925         pct = min(i->this_month_transported[j] * 256 / i->this_month_production[j], 255);
01926       }
01927       i->last_month_pct_transported[j] = pct;
01928 
01929       i->last_month_production[j] = i->this_month_production[j];
01930       i->this_month_production[j] = 0;
01931 
01932       i->last_month_transported[j] = i->this_month_transported[j];
01933       i->this_month_transported[j] = 0;
01934     }
01935   }
01936 }
01937 
01939 struct ProbabilityHelper {
01940   uint16 prob;      
01941   IndustryType ind; 
01942 };
01943 
01947 static void MaybeNewIndustry()
01948 {
01949   Industry *ind;               // will receive the industry's creation pointer
01950   IndustryType rndtype, j;     // Loop controlers
01951   const IndustrySpec *ind_spc;
01952   uint num = 0;
01953   ProbabilityHelper cumulative_probs[NUM_INDUSTRYTYPES]; // probability collector
01954   uint16 probability_max = 0;
01955 
01956   /* Generate a list of all possible industries that can be built. */
01957   for (j = 0; j < NUM_INDUSTRYTYPES; j++) {
01958     ind_spc = GetIndustrySpec(j);
01959     byte chance = ind_spc->appear_ingame[_settings_game.game_creation.landscape];
01960 
01961     if (!ind_spc->enabled || chance == 0 || ind_spc->num_table == 0) continue;
01962 
01963     /* If there is no Callback CBID_INDUSTRY_AVAILABLE or if this one did anot failed,
01964      * and if appearing chance for this landscape is above 0, this industry can be chosen */
01965     if (CheckIfCallBackAllowsAvailability(j, IACT_RANDOMCREATION)) {
01966       probability_max += chance;
01967       /* adds the result for this industry */
01968       cumulative_probs[num].ind = j;
01969       cumulative_probs[num++].prob = probability_max;
01970     }
01971   }
01972 
01973   /* Abort if there is no industry buildable */
01974   if (probability_max == 0) return;
01975 
01976   /* Find a random type, with maximum being what has been evaluate above*/
01977   rndtype = RandomRange(probability_max);
01978   for (j = 0; j < NUM_INDUSTRYTYPES; j++) {
01979     /* and choose the index of the industry that matches as close as possible this random type */
01980     if (cumulative_probs[j].prob >= rndtype) break;
01981   }
01982 
01983   ind_spc = GetIndustrySpec(cumulative_probs[j].ind);
01984   /*  Check if it is allowed */
01985   if ((ind_spc->behaviour & INDUSTRYBEH_BEFORE_1950) && _cur_year > 1950) return;
01986   if ((ind_spc->behaviour & INDUSTRYBEH_AFTER_1960) && _cur_year < 1960) return;
01987 
01988   /* try to create 2000 times this industry */
01989   num = 2000;
01990   for (;;) {
01991     ind = CreateNewIndustry(RandomTile(), cumulative_probs[j].ind);
01992     if (ind != NULL) break;
01993     if (--num == 0) return;
01994   }
01995 
01996   SetDParam(0, ind_spc->name);
01997   if (ind_spc->new_industry_text > STR_LAST_STRINGID) {
01998     SetDParam(1, STR_TOWN_NAME);
01999     SetDParam(2, ind->town->index);
02000   } else {
02001     SetDParam(1, ind->town->index);
02002   }
02003   AddIndustryNewsItem(ind_spc->new_industry_text, NS_INDUSTRY_OPEN, ind->index);
02004   AI::BroadcastNewEvent(new AIEventIndustryOpen(ind->index));
02005 }
02006 
02015 static bool CheckIndustryCloseDownProtection(IndustryType type)
02016 {
02017   const IndustrySpec *indspec = GetIndustrySpec(type);
02018 
02019   /* oil wells (or the industries with that flag set) are always allowed to closedown */
02020   if ((indspec->behaviour & INDUSTRYBEH_DONT_INCR_PROD) && _settings_game.game_creation.landscape == LT_TEMPERATE) return false;
02021   return (indspec->behaviour & INDUSTRYBEH_CANCLOSE_LASTINSTANCE) == 0 && GetIndustryTypeCount(type) <= 1;
02022 }
02023 
02033 static void CanCargoServiceIndustry(CargoID cargo, Industry *ind, bool *c_accepts, bool *c_produces)
02034 {
02035   const IndustrySpec *indspec = GetIndustrySpec(ind->type);
02036 
02037   /* Check for acceptance of cargo */
02038   for (byte j = 0; j < lengthof(ind->accepts_cargo); j++) {
02039     if (ind->accepts_cargo[j] == CT_INVALID) continue;
02040     if (cargo == ind->accepts_cargo[j]) {
02041       if (HasBit(indspec->callback_mask, CBM_IND_REFUSE_CARGO)) {
02042         uint16 res = GetIndustryCallback(CBID_INDUSTRY_REFUSE_CARGO,
02043             0, GetReverseCargoTranslation(cargo, indspec->grf_prop.grffile),
02044             ind, ind->type, ind->location.tile);
02045         if (res == 0) continue;
02046       }
02047       *c_accepts = true;
02048       break;
02049     }
02050   }
02051 
02052   /* Check for produced cargo */
02053   for (byte j = 0; j < lengthof(ind->produced_cargo); j++) {
02054     if (ind->produced_cargo[j] == CT_INVALID) continue;
02055     if (cargo == ind->produced_cargo[j]) {
02056       *c_produces = true;
02057       break;
02058     }
02059   }
02060 }
02061 
02075 static int WhoCanServiceIndustry(Industry *ind)
02076 {
02077   /* Find all stations within reach of the industry */
02078   StationList stations;
02079   FindStationsAroundTiles(ind->location, &stations);
02080 
02081   if (stations.Length() == 0) return 0; // No stations found at all => nobody services
02082 
02083   const Vehicle *v;
02084   int result = 0;
02085   FOR_ALL_VEHICLES(v) {
02086     /* Is it worthwhile to try this vehicle? */
02087     if (v->owner != _local_company && result != 0) continue;
02088 
02089     /* Check whether it accepts the right kind of cargo */
02090     bool c_accepts = false;
02091     bool c_produces = false;
02092     if (v->type == VEH_TRAIN && Train::From(v)->IsFrontEngine()) {
02093       for (const Vehicle *u = v; u != NULL; u = u->Next()) {
02094         CanCargoServiceIndustry(u->cargo_type, ind, &c_accepts, &c_produces);
02095       }
02096     } else if (v->type == VEH_ROAD || v->type == VEH_SHIP || v->type == VEH_AIRCRAFT) {
02097       CanCargoServiceIndustry(v->cargo_type, ind, &c_accepts, &c_produces);
02098     } else {
02099       continue;
02100     }
02101     if (!c_accepts && !c_produces) continue; // Wrong cargo
02102 
02103     /* Check orders of the vehicle.
02104      * We cannot check the first of shared orders only, since the first vehicle in such a chain
02105      * may have a different cargo type.
02106      */
02107     const Order *o;
02108     FOR_VEHICLE_ORDERS(v, o) {
02109       if (o->IsType(OT_GOTO_STATION) && !(o->GetUnloadType() & OUFB_TRANSFER)) {
02110         /* Vehicle visits a station to load or unload */
02111         Station *st = Station::Get(o->GetDestination());
02112         assert(st != NULL);
02113 
02114         /* Same cargo produced by industry is dropped here => not serviced by vehicle v */
02115         if ((o->GetUnloadType() & OUFB_UNLOAD) && !c_accepts) break;
02116 
02117         if (stations.Contains(st)) {
02118           if (v->owner == _local_company) return 2; // Company services industry
02119           result = 1; // Competitor services industry
02120         }
02121       }
02122     }
02123   }
02124   return result;
02125 }
02126 
02134 static void ReportNewsProductionChangeIndustry(Industry *ind, CargoID type, int percent)
02135 {
02136   NewsSubtype ns;
02137 
02138   switch (WhoCanServiceIndustry(ind)) {
02139     case 0: ns = NS_INDUSTRY_NOBODY;  break;
02140     case 1: ns = NS_INDUSTRY_OTHER;   break;
02141     case 2: ns = NS_INDUSTRY_COMPANY; break;
02142     default: NOT_REACHED();
02143   }
02144   SetDParam(2, abs(percent));
02145   SetDParam(0, CargoSpec::Get(type)->name);
02146   SetDParam(1, ind->index);
02147   AddIndustryNewsItem(
02148     percent >= 0 ? STR_NEWS_INDUSTRY_PRODUCTION_INCREASE_SMOOTH : STR_NEWS_INDUSTRY_PRODUCTION_DECREASE_SMOOTH,
02149     ns,
02150     ind->index
02151   );
02152 }
02153 
02154 enum {
02155   PERCENT_TRANSPORTED_60 = 153,
02156   PERCENT_TRANSPORTED_80 = 204,
02157 };
02158 
02163 static void ChangeIndustryProduction(Industry *i, bool monthly)
02164 {
02165   StringID str = STR_NULL;
02166   bool closeit = false;
02167   const IndustrySpec *indspec = GetIndustrySpec(i->type);
02168   bool standard = false;
02169   bool suppress_message = false;
02170   bool recalculate_multipliers = false; 
02171   /* don't use smooth economy for industries using production related callbacks */
02172   bool smooth_economy = _settings_game.economy.smooth_economy &&
02173                         !(HasBit(indspec->callback_mask, CBM_IND_PRODUCTION_256_TICKS) || HasBit(indspec->callback_mask, CBM_IND_PRODUCTION_CARGO_ARRIVAL)) && // production callbacks
02174                         !(HasBit(indspec->callback_mask, CBM_IND_MONTHLYPROD_CHANGE) || HasBit(indspec->callback_mask, CBM_IND_PRODUCTION_CHANGE));            // production change callbacks
02175   byte div = 0;
02176   byte mul = 0;
02177   int8 increment = 0;
02178 
02179   bool callback_enabled = HasBit(indspec->callback_mask, monthly ? CBM_IND_MONTHLYPROD_CHANGE : CBM_IND_PRODUCTION_CHANGE);
02180   if (callback_enabled) {
02181     uint16 res = GetIndustryCallback(monthly ? CBID_INDUSTRY_MONTHLYPROD_CHANGE : CBID_INDUSTRY_PRODUCTION_CHANGE, 0, Random(), i, i->type, i->location.tile);
02182     if (res != CALLBACK_FAILED) { // failed callback means "do nothing"
02183       suppress_message = HasBit(res, 7);
02184       /* Get the custom message if any */
02185       if (HasBit(res, 8)) str = MapGRFStringID(indspec->grf_prop.grffile->grfid, GB(GetRegister(0x100), 0, 16));
02186       res = GB(res, 0, 4);
02187       switch (res) {
02188         default: NOT_REACHED();
02189         case 0x0: break;                  // Do nothing, but show the custom message if any
02190         case 0x1: div = 1; break;         // Halve industry production. If production reaches the quarter of the default, the industry is closed instead.
02191         case 0x2: mul = 1; break;         // Double industry production if it hasn't reached eight times of the original yet.
02192         case 0x3: closeit = true; break;  // The industry announces imminent closure, and is physically removed from the map next month.
02193         case 0x4: standard = true; break; // Do the standard random production change as if this industry was a primary one.
02194         case 0x5: case 0x6: case 0x7:     // Divide production by 4, 8, 16
02195         case 0x8: div = res - 0x3; break; // Divide production by 32
02196         case 0x9: case 0xA: case 0xB:     // Multiply production by 4, 8, 16
02197         case 0xC: mul = res - 0x7; break; // Multiply production by 32
02198         case 0xD:                         // decrement production
02199         case 0xE:                         // increment production
02200           increment = res == 0x0D ? -1 : 1;
02201           break;
02202         case 0xF:                         // Set production to third byte of register 0x100
02203           i->prod_level = Clamp(GB(GetRegister(0x100), 16, 8), PRODLEVEL_MINIMUM, PRODLEVEL_MAXIMUM);
02204           recalculate_multipliers = true;
02205           break;
02206       }
02207     }
02208   } else {
02209     if (monthly != smooth_economy) return;
02210     if (indspec->life_type == INDUSTRYLIFE_BLACK_HOLE) return;
02211   }
02212 
02213   if (standard || (!callback_enabled && (indspec->life_type & (INDUSTRYLIFE_ORGANIC | INDUSTRYLIFE_EXTRACTIVE)) != 0)) {
02214     /* decrease or increase */
02215     bool only_decrease = (indspec->behaviour & INDUSTRYBEH_DONT_INCR_PROD) && _settings_game.game_creation.landscape == LT_TEMPERATE;
02216 
02217     if (smooth_economy) {
02218       closeit = true;
02219       for (byte j = 0; j < lengthof(i->produced_cargo); j++) {
02220         if (i->produced_cargo[j] == CT_INVALID) continue;
02221         uint32 r = Random();
02222         int old_prod, new_prod, percent;
02223         /* If over 60% is transported, mult is 1, else mult is -1. */
02224         int mult = (i->last_month_pct_transported[j] > PERCENT_TRANSPORTED_60) ? 1 : -1;
02225 
02226         new_prod = old_prod = i->production_rate[j];
02227 
02228         /* For industries with only_decrease flags (temperate terrain Oil Wells),
02229          * the multiplier will always be -1 so they will only decrease. */
02230         if (only_decrease) {
02231           mult = -1;
02232         /* For normal industries, if over 60% is transported, 33% chance for decrease.
02233          * Bonus for very high station ratings (over 80%): 16% chance for decrease. */
02234         } else if (Chance16I(1, ((i->last_month_pct_transported[j] > PERCENT_TRANSPORTED_80) ? 6 : 3), r)) {
02235           mult *= -1;
02236         }
02237 
02238         /* 4.5% chance for 3-23% (or 1 unit for very low productions) production change,
02239          * determined by mult value. If mult = 1 prod. increases, else (-1) it decreases. */
02240         if (Chance16I(1, 22, r >> 16)) {
02241           new_prod += mult * (max(((RandomRange(50) + 10) * old_prod) >> 8, 1U));
02242         }
02243 
02244         /* Prevent production to overflow or Oil Rig passengers to be over-"produced" */
02245         new_prod = Clamp(new_prod, 1, 255);
02246 
02247         if (((indspec->behaviour & INDUSTRYBEH_BUILT_ONWATER) != 0) && j == 1)
02248           new_prod = Clamp(new_prod, 0, 16);
02249 
02250         /* Do not stop closing the industry when it has the lowest possible production rate */
02251         if (new_prod == old_prod && old_prod > 1) {
02252           closeit = false;
02253           continue;
02254         }
02255 
02256         percent = (old_prod == 0) ? 100 : (new_prod * 100 / old_prod - 100);
02257         i->production_rate[j] = new_prod;
02258 
02259         /* Close the industry when it has the lowest possible production rate */
02260         if (new_prod > 1) closeit = false;
02261 
02262         if (abs(percent) >= 10) {
02263           ReportNewsProductionChangeIndustry(i, i->produced_cargo[j], percent);
02264         }
02265       }
02266     } else {
02267       if (only_decrease || Chance16(1, 3)) {
02268         /* If more than 60% transported, 66% chance of increase, else 33% chance of increase */
02269         if (!only_decrease && (i->last_month_pct_transported[0] > PERCENT_TRANSPORTED_60) != Chance16(1, 3)) {
02270           mul = 1; // Increase production
02271         } else {
02272           div = 1; // Decrease production
02273         }
02274       }
02275     }
02276   }
02277 
02278   if (!callback_enabled && (indspec->life_type & INDUSTRYLIFE_PROCESSING)) {
02279     if ( (byte)(_cur_year - i->last_prod_year) >= 5 && Chance16(1, smooth_economy ? 180 : 2)) {
02280       closeit = true;
02281     }
02282   }
02283 
02284   /* Increase if needed */
02285   while (mul-- != 0 && i->prod_level < PRODLEVEL_MAXIMUM) {
02286     i->prod_level = min(i->prod_level * 2, PRODLEVEL_MAXIMUM);
02287     recalculate_multipliers = true;
02288     if (str == STR_NULL) str = indspec->production_up_text;
02289   }
02290 
02291   /* Decrease if needed */
02292   while (div-- != 0 && !closeit) {
02293     if (i->prod_level == PRODLEVEL_MINIMUM) {
02294       closeit = true;
02295     } else {
02296       i->prod_level = max(i->prod_level / 2, (int)PRODLEVEL_MINIMUM); // typecast to int required to please MSVC
02297       recalculate_multipliers = true;
02298       if (str == STR_NULL) str = indspec->production_down_text;
02299     }
02300   }
02301 
02302   /* Increase or Decreasing the production level if needed */
02303   if (increment != 0) {
02304     if (increment < 0 && i->prod_level == PRODLEVEL_MINIMUM) {
02305       closeit = true;
02306     } else {
02307       i->prod_level = ClampU(i->prod_level + increment, PRODLEVEL_MINIMUM, PRODLEVEL_MAXIMUM);
02308       recalculate_multipliers = true;
02309     }
02310   }
02311 
02312   /* Recalculate production_rate
02313    * For non-smooth economy these should always be synchronized with prod_level */
02314   if (recalculate_multipliers) {
02315     /* Rates are rounded up, so e.g. oilrig always produces some passengers */
02316     i->production_rate[0] = min((indspec->production_rate[0] * i->prod_level + PRODLEVEL_DEFAULT - 1) / PRODLEVEL_DEFAULT, 0xFF);
02317     i->production_rate[1] = min((indspec->production_rate[1] * i->prod_level + PRODLEVEL_DEFAULT - 1) / PRODLEVEL_DEFAULT, 0xFF);
02318   }
02319 
02320   /* Close if needed and allowed */
02321   if (closeit && !CheckIndustryCloseDownProtection(i->type)) {
02322     i->prod_level = PRODLEVEL_CLOSURE;
02323     str = indspec->closure_text;
02324   }
02325 
02326   if (!suppress_message && str != STR_NULL) {
02327     NewsSubtype ns;
02328     /* Compute news category */
02329     if (closeit) {
02330       ns = NS_INDUSTRY_CLOSE;
02331       AI::BroadcastNewEvent(new AIEventIndustryClose(i->index));
02332     } else {
02333       switch (WhoCanServiceIndustry(i)) {
02334         case 0: ns = NS_INDUSTRY_NOBODY;  break;
02335         case 1: ns = NS_INDUSTRY_OTHER;   break;
02336         case 2: ns = NS_INDUSTRY_COMPANY; break;
02337         default: NOT_REACHED();
02338       }
02339     }
02340     /* Set parameters of news string */
02341     if (str > STR_LAST_STRINGID) {
02342       SetDParam(0, STR_TOWN_NAME);
02343       SetDParam(1, i->town->index);
02344       SetDParam(2, indspec->name);
02345     } else if (closeit) {
02346       SetDParam(0, STR_FORMAT_INDUSTRY_NAME);
02347       SetDParam(1, i->town->index);
02348       SetDParam(2, indspec->name);
02349     } else {
02350       SetDParam(0, i->index);
02351     }
02352     /* and report the news to the user */
02353     AddNewsItem(str,
02354       ns,
02355       closeit ? NR_TILE : NR_INDUSTRY,
02356       closeit ? i->location.tile + TileDiffXY(1, 1) : i->index);
02357   }
02358 }
02359 
02365 void IndustryDailyLoop()
02366 {
02367   _economy.industry_daily_change_counter += _economy.industry_daily_increment;
02368 
02369   /* Bits 16-31 of industry_construction_counter contain the number of industries to change/create today,
02370    * the lower 16 bit are a fractional part that might accumulate over several days until it
02371    * is sufficient for an industry. */
02372   uint16 change_loop = _economy.industry_daily_change_counter >> 16;
02373 
02374   /* Reset the active part of the counter, just keeping the "factional part" */
02375   _economy.industry_daily_change_counter &= 0xFFFF;
02376 
02377   if (change_loop == 0) {
02378     return;  // Nothing to do? get out
02379   }
02380 
02381   CompanyID old_company = _current_company;
02382   _current_company = OWNER_NONE;
02383 
02384   /* perform the required industry changes for the day */
02385   for (uint16 j = 0; j < change_loop; j++) {
02386     /* 3% chance that we start a new industry */
02387     if (Chance16(3, 100)) {
02388       MaybeNewIndustry();
02389     } else {
02390       Industry *i = Industry::GetRandom();
02391       if (i != NULL) {
02392         ChangeIndustryProduction(i, false);
02393         SetWindowDirty(WC_INDUSTRY_VIEW, i->index);
02394       }
02395     }
02396   }
02397 
02398   _current_company = old_company;
02399 
02400   /* production-change */
02401   InvalidateWindowData(WC_INDUSTRY_DIRECTORY, 0, 1);
02402 }
02403 
02404 void IndustryMonthlyLoop()
02405 {
02406   Industry *i;
02407   CompanyID old_company = _current_company;
02408   _current_company = OWNER_NONE;
02409 
02410   FOR_ALL_INDUSTRIES(i) {
02411     UpdateIndustryStatistics(i);
02412     if (i->prod_level == PRODLEVEL_CLOSURE) {
02413       delete i;
02414     } else {
02415       ChangeIndustryProduction(i, true);
02416       SetWindowDirty(WC_INDUSTRY_VIEW, i->index);
02417     }
02418   }
02419 
02420   _current_company = old_company;
02421 
02422   /* production-change */
02423   InvalidateWindowData(WC_INDUSTRY_DIRECTORY, 0, 1);
02424 }
02425 
02426 
02427 void InitializeIndustries()
02428 {
02429   _industry_pool.CleanPool();
02430 
02431   ResetIndustryCounts();
02432   _industry_sound_tile = 0;
02433 }
02434 
02435 bool IndustrySpec::IsRawIndustry() const
02436 {
02437   /* Lumber mills are extractive/organic, but can always be built like a non-raw industry */
02438   return (this->life_type & (INDUSTRYLIFE_EXTRACTIVE | INDUSTRYLIFE_ORGANIC)) != 0 &&
02439       (this->behaviour & INDUSTRYBEH_CUT_TREES) == 0;
02440 }
02441 
02442 Money IndustrySpec::GetConstructionCost() const
02443 {
02444   /* Building raw industries like secondary uses different price base */
02445   return (_price[(_settings_game.construction.raw_industry_construction == 1 && this->IsRawIndustry()) ?
02446       PR_BUILD_INDUSTRY_RAW : PR_BUILD_INDUSTRY] * this->cost_multiplier) >> 8;
02447 }
02448 
02449 Money IndustrySpec::GetRemovalCost() const
02450 {
02451   return (_price[PR_CLEAR_INDUSTRY] * this->removal_cost_multiplier) >> 8;
02452 }
02453 
02454 static CommandCost TerraformTile_Industry(TileIndex tile, DoCommandFlag flags, uint z_new, Slope tileh_new)
02455 {
02456   if (AutoslopeEnabled()) {
02457     /* We imitate here TTDP's behaviour:
02458      *  - Both new and old slope must not be steep.
02459      *  - TileMaxZ must not be changed.
02460      *  - Allow autoslope by default.
02461      *  - Disallow autoslope if callback succeeds and returns non-zero.
02462      */
02463     Slope tileh_old = GetTileSlope(tile, NULL);
02464     /* TileMaxZ must not be changed. Slopes must not be steep. */
02465     if (!IsSteepSlope(tileh_old) && !IsSteepSlope(tileh_new) && (GetTileMaxZ(tile) == z_new + GetSlopeMaxZ(tileh_new))) {
02466       const IndustryGfx gfx = GetIndustryGfx(tile);
02467       const IndustryTileSpec *itspec = GetIndustryTileSpec(gfx);
02468 
02469       /* Call callback 3C 'disable autosloping for industry tiles'. */
02470       if (HasBit(itspec->callback_mask, CBM_INDT_AUTOSLOPE)) {
02471         /* If the callback fails, allow autoslope. */
02472         uint16 res = GetIndustryTileCallback(CBID_INDUSTRY_AUTOSLOPE, 0, 0, gfx, Industry::GetByTile(tile), tile);
02473         if ((res == 0) || (res == CALLBACK_FAILED)) return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]);
02474       } else {
02475         /* allow autoslope */
02476         return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]);
02477       }
02478     }
02479   }
02480   return DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
02481 }
02482 
02483 extern const TileTypeProcs _tile_type_industry_procs = {
02484   DrawTile_Industry,           // draw_tile_proc
02485   GetSlopeZ_Industry,          // get_slope_z_proc
02486   ClearTile_Industry,          // clear_tile_proc
02487   AddAcceptedCargo_Industry,   // add_accepted_cargo_proc
02488   GetTileDesc_Industry,        // get_tile_desc_proc
02489   GetTileTrackStatus_Industry, // get_tile_track_status_proc
02490   ClickTile_Industry,          // click_tile_proc
02491   AnimateTile_Industry,        // animate_tile_proc
02492   TileLoop_Industry,           // tile_loop_proc
02493   ChangeTileOwner_Industry,    // change_tile_owner_proc
02494   NULL,                        // add_produced_cargo_proc
02495   NULL,                        // vehicle_enter_tile_proc
02496   GetFoundation_Industry,      // get_foundation_proc
02497   TerraformTile_Industry,      // terraform_tile_proc
02498 };

Generated on Sun Nov 14 14:41:51 2010 for OpenTTD by  doxygen 1.6.1