unmovable_cmd.cpp

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00001 /* $Id: unmovable_cmd.cpp 18976 2010-01-31 20:56:24Z frosch $ */
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 "landscape.h"
00014 #include "command_func.h"
00015 #include "viewport_func.h"
00016 #include "company_base.h"
00017 #include "town.h"
00018 #include "bridge_map.h"
00019 #include "genworld.h"
00020 #include "autoslope.h"
00021 #include "transparency.h"
00022 #include "functions.h"
00023 #include "window_func.h"
00024 #include "vehicle_func.h"
00025 #include "company_gui.h"
00026 #include "cheat_type.h"
00027 #include "landscape_type.h"
00028 #include "unmovable.h"
00029 #include "cargopacket.h"
00030 #include "sprite.h"
00031 #include "core/random_func.hpp"
00032 #include "unmovable_map.h"
00033 
00034 #include "table/strings.h"
00035 #include "table/sprites.h"
00036 #include "table/unmovable_land.h"
00037 
00046 static inline const UnmovableSpec *GetUnmovableSpec(UnmovableType type)
00047 {
00048   assert(type < UNMOVABLE_MAX);
00049   return &_original_unmovable[type];
00050 }
00051 
00059 static CommandCost DestroyCompanyHQ(CompanyID cid, DoCommandFlag flags)
00060 {
00061   Company *c = Company::Get(cid);
00062 
00063   if (flags & DC_EXEC) {
00064     TileIndex t = c->location_of_HQ;
00065 
00066     DoClearSquare(t);
00067     DoClearSquare(t + TileDiffXY(0, 1));
00068     DoClearSquare(t + TileDiffXY(1, 0));
00069     DoClearSquare(t + TileDiffXY(1, 1));
00070     c->location_of_HQ = INVALID_TILE; // reset HQ position
00071     SetWindowDirty(WC_COMPANY, cid);
00072 
00073     CargoPacket::InvalidateAllFrom(ST_HEADQUARTERS, cid);
00074   }
00075 
00076   /* cost of relocating company is 1% of company value */
00077   return CommandCost(EXPENSES_PROPERTY, CalculateCompanyValue(c) / 100);
00078 }
00079 
00080 void UpdateCompanyHQ(Company *c, uint score)
00081 {
00082   byte val;
00083   TileIndex tile = c->location_of_HQ;
00084 
00085   if (tile == INVALID_TILE) return;
00086 
00087   (val = 0, score < 170) ||
00088   (val++, score < 350) ||
00089   (val++, score < 520) ||
00090   (val++, score < 720) ||
00091   (val++, true);
00092 
00093   EnlargeCompanyHQ(tile, val);
00094 
00095   MarkTileDirtyByTile(tile);
00096   MarkTileDirtyByTile(tile + TileDiffXY(0, 1));
00097   MarkTileDirtyByTile(tile + TileDiffXY(1, 0));
00098   MarkTileDirtyByTile(tile + TileDiffXY(1, 1));
00099 }
00100 
00101 extern CommandCost CheckFlatLandBelow(TileIndex tile, uint w, uint h, DoCommandFlag flags, uint invalid_dirs, StationID *station, bool check_clear = true, RailType rt = INVALID_RAILTYPE);
00102 
00111 CommandCost CmdBuildCompanyHQ(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00112 {
00113   Company *c = Company::Get(_current_company);
00114   CommandCost cost(EXPENSES_PROPERTY);
00115 
00116   cost = CheckFlatLandBelow(tile, 2, 2, flags, 0, NULL);
00117   if (cost.Failed()) return cost;
00118 
00119   if (c->location_of_HQ != INVALID_TILE) { // Moving HQ
00120     cost.AddCost(DestroyCompanyHQ(_current_company, flags));
00121   }
00122 
00123   if (flags & DC_EXEC) {
00124     int score = UpdateCompanyRatingAndValue(c, false);
00125 
00126     c->location_of_HQ = tile;
00127 
00128     MakeCompanyHQ(tile, _current_company);
00129 
00130     UpdateCompanyHQ(c, score);
00131     SetWindowDirty(WC_COMPANY, c->index);
00132   }
00133 
00134   return cost;
00135 }
00136 
00146 CommandCost CmdPurchaseLandArea(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00147 {
00148   CommandCost cost(EXPENSES_CONSTRUCTION);
00149 
00150   if (IsOwnedLandTile(tile) && IsTileOwner(tile, _current_company)) {
00151     return_cmd_error(STR_ERROR_YOU_ALREADY_OWN_IT);
00152   }
00153 
00154   cost = DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00155   if (cost.Failed()) return CMD_ERROR;
00156 
00157   if (flags & DC_EXEC) {
00158     MakeOwnedLand(tile, _current_company);
00159     MarkTileDirtyByTile(tile);
00160   }
00161 
00162   return cost.AddCost(GetUnmovableSpec(UNMOVABLE_OWNED_LAND)->GetBuildingCost());
00163 }
00164 
00174 CommandCost CmdSellLandArea(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00175 {
00176   if (!IsOwnedLandTile(tile)) return CMD_ERROR;
00177   if (!CheckTileOwnership(tile) && _current_company != OWNER_WATER) return CMD_ERROR;
00178 
00179   if (!EnsureNoVehicleOnGround(tile)) return CMD_ERROR;
00180 
00181   if (flags & DC_EXEC) DoClearSquare(tile);
00182 
00183   return CommandCost(EXPENSES_CONSTRUCTION, - GetUnmovableSpec(UNMOVABLE_OWNED_LAND)->GetRemovalCost());
00184 }
00185 
00186 static Foundation GetFoundation_Unmovable(TileIndex tile, Slope tileh);
00187 
00188 static void DrawTile_Unmovable(TileInfo *ti)
00189 {
00190   DrawFoundation(ti, GetFoundation_Unmovable(ti->tile, ti->tileh));
00191   switch (GetUnmovableType(ti->tile)) {
00192     default: NOT_REACHED();
00193     case UNMOVABLE_TRANSMITTER:
00194     case UNMOVABLE_LIGHTHOUSE: {
00195       const DrawTileSeqStruct *dtu = &_draw_tile_transmitterlighthouse_data[GetUnmovableType(ti->tile)];
00196 
00197       DrawClearLandTile(ti, 2);
00198 
00199       if (IsInvisibilitySet(TO_STRUCTURES)) break;
00200 
00201       AddSortableSpriteToDraw(
00202         dtu->image.sprite, PAL_NONE, ti->x | dtu->delta_x, ti->y | dtu->delta_y,
00203         dtu->size_x, dtu->size_y, dtu->size_z, ti->z,
00204         IsTransparencySet(TO_STRUCTURES)
00205       );
00206       break;
00207     }
00208 
00209     case UNMOVABLE_STATUE:
00210       DrawGroundSprite(SPR_CONCRETE_GROUND, PAL_NONE);
00211 
00212       if (IsInvisibilitySet(TO_STRUCTURES)) break;
00213 
00214       AddSortableSpriteToDraw(SPR_STATUE_COMPANY, COMPANY_SPRITE_COLOUR(GetTileOwner(ti->tile)), ti->x, ti->y, 16, 16, 25, ti->z, IsTransparencySet(TO_STRUCTURES));
00215       break;
00216 
00217     case UNMOVABLE_OWNED_LAND:
00218       DrawClearLandTile(ti, 0);
00219 
00220       AddSortableSpriteToDraw(
00221         SPR_BOUGHT_LAND, COMPANY_SPRITE_COLOUR(GetTileOwner(ti->tile)),
00222         ti->x + TILE_SIZE / 2, ti->y + TILE_SIZE / 2, 1, 1, BB_HEIGHT_UNDER_BRIDGE, GetSlopeZ(ti->x + TILE_SIZE / 2, ti->y + TILE_SIZE / 2)
00223       );
00224       DrawBridgeMiddle(ti);
00225       break;
00226 
00227     case UNMOVABLE_HQ:{
00228       assert(IsCompanyHQ(ti->tile));
00229 
00230       PaletteID palette = COMPANY_SPRITE_COLOUR(GetTileOwner(ti->tile));
00231 
00232       const DrawTileSprites *t = &_unmovable_display_datas[GetCompanyHQSize(ti->tile) << 2 | GetCompanyHQSection(ti->tile)];
00233       DrawGroundSprite(t->ground.sprite, palette);
00234 
00235       if (IsInvisibilitySet(TO_STRUCTURES)) break;
00236 
00237       const DrawTileSeqStruct *dtss;
00238       foreach_draw_tile_seq(dtss, t->seq) {
00239         AddSortableSpriteToDraw(
00240           dtss->image.sprite, palette,
00241           ti->x + dtss->delta_x, ti->y + dtss->delta_y,
00242           dtss->size_x, dtss->size_y,
00243           dtss->size_z, ti->z + dtss->delta_z,
00244           IsTransparencySet(TO_STRUCTURES)
00245         );
00246       }
00247       break;
00248     }
00249   }
00250 }
00251 
00252 static uint GetSlopeZ_Unmovable(TileIndex tile, uint x, uint y)
00253 {
00254   if (IsOwnedLand(tile)) {
00255     uint z;
00256     Slope tileh = GetTileSlope(tile, &z);
00257 
00258     return z + GetPartialZ(x & 0xF, y & 0xF, tileh);
00259   } else {
00260     return GetTileMaxZ(tile);
00261   }
00262 }
00263 
00264 static Foundation GetFoundation_Unmovable(TileIndex tile, Slope tileh)
00265 {
00266   return IsOwnedLand(tile) ? FOUNDATION_NONE : FlatteningFoundation(tileh);
00267 }
00268 
00269 static CommandCost ClearTile_Unmovable(TileIndex tile, DoCommandFlag flags)
00270 {
00271   if (IsCompanyHQ(tile)) {
00272     if (_current_company == OWNER_WATER) {
00273       return DestroyCompanyHQ(GetTileOwner(tile), DC_EXEC);
00274     } else {
00275       return_cmd_error(flags & DC_AUTO ? STR_ERROR_COMPANY_HEADQUARTERS_IN : INVALID_STRING_ID);
00276     }
00277   }
00278 
00279   if (IsOwnedLand(tile)) {
00280     return DoCommand(tile, 0, 0, flags, CMD_SELL_LAND_AREA);
00281   }
00282 
00283   /* checks if you're allowed to remove unmovable things */
00284   if (_game_mode != GM_EDITOR && _current_company != OWNER_WATER && ((flags & DC_AUTO) || !_cheats.magic_bulldozer.value) )
00285     return_cmd_error(flags & DC_AUTO ? STR_ERROR_OBJECT_IN_THE_WAY : INVALID_STRING_ID);
00286 
00287   if (IsStatue(tile)) {
00288     if (flags & DC_AUTO) return_cmd_error(STR_ERROR_OBJECT_IN_THE_WAY);
00289 
00290     if (flags & DC_EXEC) {
00291       TownID town = GetStatueTownID(tile);
00292       ClrBit(Town::Get(town)->statues, GetTileOwner(tile));
00293       SetWindowDirty(WC_TOWN_AUTHORITY, town);
00294     }
00295   }
00296 
00297   if (flags & DC_EXEC) {
00298     DoClearSquare(tile);
00299   }
00300 
00301   return CommandCost();
00302 }
00303 
00304 static void AddAcceptedCargo_Unmovable(TileIndex tile, CargoArray &acceptance, uint32 *always_accepted)
00305 {
00306   if (!IsCompanyHQ(tile)) return;
00307 
00308   /* HQ accepts passenger and mail; but we have to divide the values
00309    * between 4 tiles it occupies! */
00310 
00311   /* HQ level (depends on company performance) in the range 1..5. */
00312   uint level = GetCompanyHQSize(tile) + 1;
00313 
00314   /* Top town building generates 10, so to make HQ interesting, the top
00315    * type makes 20. */
00316   acceptance[CT_PASSENGERS] += max(1U, level);
00317   SetBit(*always_accepted, CT_PASSENGERS);
00318 
00319   /* Top town building generates 4, HQ can make up to 8. The
00320    * proportion passengers:mail is different because such a huge
00321    * commercial building generates unusually high amount of mail
00322    * correspondence per physical visitor. */
00323   acceptance[CT_MAIL] += max(1U, level / 2);
00324   SetBit(*always_accepted, CT_MAIL);
00325 }
00326 
00327 
00328 static void GetTileDesc_Unmovable(TileIndex tile, TileDesc *td)
00329 {
00330   td->str = GetUnmovableSpec(GetUnmovableType(tile))->name;
00331   td->owner[0] = GetTileOwner(tile);
00332 }
00333 
00334 static void TileLoop_Unmovable(TileIndex tile)
00335 {
00336   if (!IsCompanyHQ(tile)) return;
00337 
00338   /* HQ accepts passenger and mail; but we have to divide the values
00339    * between 4 tiles it occupies! */
00340 
00341   /* HQ level (depends on company performance) in the range 1..5. */
00342   uint level = GetCompanyHQSize(tile) + 1;
00343   assert(level < 6);
00344 
00345   StationFinder stations(TileArea(tile, 2, 2));
00346 
00347   uint r = Random();
00348   /* Top town buildings generate 250, so the top HQ type makes 256. */
00349   if (GB(r, 0, 8) < (256 / 4 / (6 - level))) {
00350     uint amt = GB(r, 0, 8) / 8 / 4 + 1;
00351     if (_economy.fluct <= 0) amt = (amt + 1) >> 1;
00352     MoveGoodsToStation(CT_PASSENGERS, amt, ST_HEADQUARTERS, GetTileOwner(tile), stations.GetStations());
00353   }
00354 
00355   /* Top town building generates 90, HQ can make up to 196. The
00356    * proportion passengers:mail is about the same as in the acceptance
00357    * equations. */
00358   if (GB(r, 8, 8) < (196 / 4 / (6 - level))) {
00359     uint amt = GB(r, 8, 8) / 8 / 4 + 1;
00360     if (_economy.fluct <= 0) amt = (amt + 1) >> 1;
00361     MoveGoodsToStation(CT_MAIL, amt, ST_HEADQUARTERS, GetTileOwner(tile), stations.GetStations());
00362   }
00363 }
00364 
00365 
00366 static TrackStatus GetTileTrackStatus_Unmovable(TileIndex tile, TransportType mode, uint sub_mode, DiagDirection side)
00367 {
00368   return 0;
00369 }
00370 
00371 static bool ClickTile_Unmovable(TileIndex tile)
00372 {
00373   if (!IsCompanyHQ(tile)) return false;
00374 
00375   ShowCompany(GetTileOwner(tile));
00376   return true;
00377 }
00378 
00379 
00380 /* checks, if a radio tower is within a 9x9 tile square around tile */
00381 static bool IsRadioTowerNearby(TileIndex tile)
00382 {
00383   TileIndex tile_s = tile - TileDiffXY(min(TileX(tile), 4U), min(TileY(tile), 4U));
00384   uint w = min(TileX(tile), 4U) + 1 + min(MapMaxX() - TileX(tile), 4U);
00385   uint h = min(TileY(tile), 4U) + 1 + min(MapMaxY() - TileY(tile), 4U);
00386 
00387   TILE_LOOP(tile, w, h, tile_s) {
00388     if (IsTransmitterTile(tile)) return true;
00389   }
00390 
00391   return false;
00392 }
00393 
00394 void GenerateUnmovables()
00395 {
00396   if (_settings_game.game_creation.landscape == LT_TOYLAND) return;
00397 
00398   /* add radio tower */
00399   int radiotower_to_build = ScaleByMapSize(15); // maximum number of radio towers on the map
00400   int lighthouses_to_build = _settings_game.game_creation.landscape == LT_TROPIC ? 0 : ScaleByMapSize1D((Random() & 3) + 7);
00401 
00402   /* Scale the amount of lighthouses with the amount of land at the borders. */
00403   if (_settings_game.construction.freeform_edges && lighthouses_to_build != 0) {
00404     uint num_water_tiles = 0;
00405     for (uint x = 0; x < MapMaxX(); x++) {
00406       if (IsTileType(TileXY(x, 1), MP_WATER)) num_water_tiles++;
00407       if (IsTileType(TileXY(x, MapMaxY() - 1), MP_WATER)) num_water_tiles++;
00408     }
00409     for (uint y = 1; y < MapMaxY() - 1; y++) {
00410       if (IsTileType(TileXY(1, y), MP_WATER)) num_water_tiles++;
00411       if (IsTileType(TileXY(MapMaxX() - 1, y), MP_WATER)) num_water_tiles++;
00412     }
00413     /* The -6 is because the top borders are MP_VOID (-2) and all corners
00414      * are counted twice (-4). */
00415     lighthouses_to_build = lighthouses_to_build * num_water_tiles / (2 * MapMaxY() + 2 * MapMaxX() - 6);
00416   }
00417 
00418   SetGeneratingWorldProgress(GWP_UNMOVABLE, radiotower_to_build + lighthouses_to_build);
00419 
00420   for (uint i = ScaleByMapSize(1000); i != 0; i--) {
00421     TileIndex tile = RandomTile();
00422 
00423     uint h;
00424     if (IsTileType(tile, MP_CLEAR) && GetTileSlope(tile, &h) == SLOPE_FLAT && h >= TILE_HEIGHT * 4 && !IsBridgeAbove(tile)) {
00425       if (IsRadioTowerNearby(tile)) continue;
00426 
00427       MakeTransmitter(tile);
00428       IncreaseGeneratingWorldProgress(GWP_UNMOVABLE);
00429       if (--radiotower_to_build == 0) break;
00430     }
00431   }
00432 
00433   /* add lighthouses */
00434   uint maxx = MapMaxX();
00435   uint maxy = MapMaxY();
00436   for (int loop_count = 0; loop_count < 1000 && lighthouses_to_build != 0; loop_count++) {
00437     uint r = Random();
00438 
00439     /* Scatter the lighthouses more evenly around the perimeter */
00440     int perimeter = (GB(r, 16, 16) % (2 * (maxx + maxy))) - maxy;
00441     DiagDirection dir;
00442     for (dir = DIAGDIR_NE; perimeter > 0; dir++) {
00443       perimeter -= (DiagDirToAxis(dir) == AXIS_X) ? maxx : maxy;
00444     }
00445 
00446     TileIndex tile;
00447     switch (dir) {
00448       default:
00449       case DIAGDIR_NE: tile = TileXY(maxx - 1, r % maxy); break;
00450       case DIAGDIR_SE: tile = TileXY(r % maxx, 1); break;
00451       case DIAGDIR_SW: tile = TileXY(1,        r % maxy); break;
00452       case DIAGDIR_NW: tile = TileXY(r % maxx, maxy - 1); break;
00453     }
00454 
00455     /* Only build lighthouses at tiles where the border is sea. */
00456     if (!IsTileType(tile, MP_WATER)) continue;
00457 
00458     for (int j = 0; j < 19; j++) {
00459       uint h;
00460       if (IsTileType(tile, MP_CLEAR) && GetTileSlope(tile, &h) == SLOPE_FLAT && h <= TILE_HEIGHT * 2 && !IsBridgeAbove(tile)) {
00461         MakeLighthouse(tile);
00462         IncreaseGeneratingWorldProgress(GWP_UNMOVABLE);
00463         lighthouses_to_build--;
00464         assert(tile < MapSize());
00465         break;
00466       }
00467       tile = AddTileIndexDiffCWrap(tile, TileIndexDiffCByDiagDir(dir));
00468       if (tile == INVALID_TILE) break;
00469     }
00470   }
00471 }
00472 
00473 static void ChangeTileOwner_Unmovable(TileIndex tile, Owner old_owner, Owner new_owner)
00474 {
00475   if (!IsTileOwner(tile, old_owner)) return;
00476 
00477   if (IsOwnedLand(tile) && new_owner != INVALID_OWNER) {
00478     SetTileOwner(tile, new_owner);
00479   } else if (IsStatueTile(tile)) {
00480     TownID town = GetStatueTownID(tile);
00481     Town *t = Town::Get(town);
00482     ClrBit(t->statues, old_owner);
00483     if (new_owner != INVALID_OWNER && !HasBit(t->statues, new_owner)) {
00484       /* Transfer ownership to the new company */
00485       SetBit(t->statues, new_owner);
00486       SetTileOwner(tile, new_owner);
00487     } else {
00488       DoClearSquare(tile);
00489     }
00490 
00491     SetWindowDirty(WC_TOWN_AUTHORITY, town);
00492   } else {
00493     DoClearSquare(tile);
00494   }
00495 }
00496 
00497 static CommandCost TerraformTile_Unmovable(TileIndex tile, DoCommandFlag flags, uint z_new, Slope tileh_new)
00498 {
00499   /* Owned land remains unsold */
00500   if (IsOwnedLand(tile) && CheckTileOwnership(tile)) return CommandCost();
00501 
00502   if (AutoslopeEnabled() && (IsStatue(tile) || IsCompanyHQ(tile))) {
00503     if (!IsSteepSlope(tileh_new) && (z_new + GetSlopeMaxZ(tileh_new) == GetTileMaxZ(tile))) return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]);
00504   }
00505 
00506   return DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00507 }
00508 
00509 extern const TileTypeProcs _tile_type_unmovable_procs = {
00510   DrawTile_Unmovable,             // draw_tile_proc
00511   GetSlopeZ_Unmovable,            // get_slope_z_proc
00512   ClearTile_Unmovable,            // clear_tile_proc
00513   AddAcceptedCargo_Unmovable,     // add_accepted_cargo_proc
00514   GetTileDesc_Unmovable,          // get_tile_desc_proc
00515   GetTileTrackStatus_Unmovable,   // get_tile_track_status_proc
00516   ClickTile_Unmovable,            // click_tile_proc
00517   NULL,                           // animate_tile_proc
00518   TileLoop_Unmovable,             // tile_loop_clear
00519   ChangeTileOwner_Unmovable,      // change_tile_owner_clear
00520   NULL,                           // add_produced_cargo_proc
00521   NULL,                           // vehicle_enter_tile_proc
00522   GetFoundation_Unmovable,        // get_foundation_proc
00523   TerraformTile_Unmovable,        // terraform_tile_proc
00524 };

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