unmovable_cmd.cpp

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00001 /* $Id: unmovable_cmd.cpp 19393 2010-03-12 21:12:35Z 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 "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, SmallVector<Train *, 4> *affected_trains = NULL);
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   cost.AddCost(GetUnmovableSpec(UNMOVABLE_OWNED_LAND)->GetBuildingCost());
00163   return cost;
00164 }
00165 
00175 CommandCost CmdSellLandArea(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00176 {
00177   if (!IsOwnedLandTile(tile)) return CMD_ERROR;
00178   if (!CheckTileOwnership(tile) && _current_company != OWNER_WATER) return CMD_ERROR;
00179 
00180   if (!EnsureNoVehicleOnGround(tile)) return CMD_ERROR;
00181 
00182   if (flags & DC_EXEC) DoClearSquare(tile);
00183 
00184   return CommandCost(EXPENSES_CONSTRUCTION, - GetUnmovableSpec(UNMOVABLE_OWNED_LAND)->GetRemovalCost());
00185 }
00186 
00187 static Foundation GetFoundation_Unmovable(TileIndex tile, Slope tileh);
00188 
00189 static void DrawTile_Unmovable(TileInfo *ti)
00190 {
00191   DrawFoundation(ti, GetFoundation_Unmovable(ti->tile, ti->tileh));
00192   switch (GetUnmovableType(ti->tile)) {
00193     default: NOT_REACHED();
00194     case UNMOVABLE_TRANSMITTER:
00195     case UNMOVABLE_LIGHTHOUSE: {
00196       const DrawTileSeqStruct *dtu = &_draw_tile_transmitterlighthouse_data[GetUnmovableType(ti->tile)];
00197 
00198       DrawClearLandTile(ti, 2);
00199 
00200       if (IsInvisibilitySet(TO_STRUCTURES)) break;
00201 
00202       AddSortableSpriteToDraw(
00203         dtu->image.sprite, PAL_NONE, ti->x | dtu->delta_x, ti->y | dtu->delta_y,
00204         dtu->size_x, dtu->size_y, dtu->size_z, ti->z,
00205         IsTransparencySet(TO_STRUCTURES)
00206       );
00207       break;
00208     }
00209 
00210     case UNMOVABLE_STATUE:
00211       DrawGroundSprite(SPR_CONCRETE_GROUND, PAL_NONE);
00212 
00213       if (IsInvisibilitySet(TO_STRUCTURES)) break;
00214 
00215       AddSortableSpriteToDraw(SPR_STATUE_COMPANY, COMPANY_SPRITE_COLOUR(GetTileOwner(ti->tile)), ti->x, ti->y, 16, 16, 25, ti->z, IsTransparencySet(TO_STRUCTURES));
00216       break;
00217 
00218     case UNMOVABLE_OWNED_LAND:
00219       DrawClearLandTile(ti, 0);
00220 
00221       AddSortableSpriteToDraw(
00222         SPR_BOUGHT_LAND, COMPANY_SPRITE_COLOUR(GetTileOwner(ti->tile)),
00223         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)
00224       );
00225       DrawBridgeMiddle(ti);
00226       break;
00227 
00228     case UNMOVABLE_HQ: {
00229       assert(IsCompanyHQ(ti->tile));
00230 
00231       PaletteID palette = COMPANY_SPRITE_COLOUR(GetTileOwner(ti->tile));
00232 
00233       const DrawTileSprites *t = &_unmovable_display_datas[GetCompanyHQSize(ti->tile) << 2 | GetCompanyHQSection(ti->tile)];
00234       DrawGroundSprite(t->ground.sprite, palette);
00235 
00236       if (IsInvisibilitySet(TO_STRUCTURES)) break;
00237 
00238       const DrawTileSeqStruct *dtss;
00239       foreach_draw_tile_seq(dtss, t->seq) {
00240         AddSortableSpriteToDraw(
00241           dtss->image.sprite, palette,
00242           ti->x + dtss->delta_x, ti->y + dtss->delta_y,
00243           dtss->size_x, dtss->size_y,
00244           dtss->size_z, ti->z + dtss->delta_z,
00245           IsTransparencySet(TO_STRUCTURES)
00246         );
00247       }
00248       break;
00249     }
00250   }
00251 }
00252 
00253 static uint GetSlopeZ_Unmovable(TileIndex tile, uint x, uint y)
00254 {
00255   if (IsOwnedLand(tile)) {
00256     uint z;
00257     Slope tileh = GetTileSlope(tile, &z);
00258 
00259     return z + GetPartialZ(x & 0xF, y & 0xF, tileh);
00260   } else {
00261     return GetTileMaxZ(tile);
00262   }
00263 }
00264 
00265 static Foundation GetFoundation_Unmovable(TileIndex tile, Slope tileh)
00266 {
00267   return IsOwnedLand(tile) ? FOUNDATION_NONE : FlatteningFoundation(tileh);
00268 }
00269 
00270 static CommandCost ClearTile_Unmovable(TileIndex tile, DoCommandFlag flags)
00271 {
00272   if (IsCompanyHQ(tile)) {
00273     if (_current_company == OWNER_WATER) {
00274       return DestroyCompanyHQ(GetTileOwner(tile), DC_EXEC);
00275     } else {
00276       return_cmd_error(flags & DC_AUTO ? STR_ERROR_COMPANY_HEADQUARTERS_IN : INVALID_STRING_ID);
00277     }
00278   }
00279 
00280   if (IsOwnedLand(tile)) {
00281     return DoCommand(tile, 0, 0, flags, CMD_SELL_LAND_AREA);
00282   }
00283 
00284   /* checks if you're allowed to remove unmovable things */
00285   if (_game_mode != GM_EDITOR && _current_company != OWNER_WATER && ((flags & DC_AUTO) || !_cheats.magic_bulldozer.value) )
00286     return_cmd_error(flags & DC_AUTO ? STR_ERROR_OBJECT_IN_THE_WAY : INVALID_STRING_ID);
00287 
00288   if (IsStatue(tile)) {
00289     if (flags & DC_AUTO) return_cmd_error(STR_ERROR_OBJECT_IN_THE_WAY);
00290 
00291     if (flags & DC_EXEC) {
00292       TownID town = GetStatueTownID(tile);
00293       ClrBit(Town::Get(town)->statues, GetTileOwner(tile));
00294       SetWindowDirty(WC_TOWN_AUTHORITY, town);
00295     }
00296   }
00297 
00298   if (flags & DC_EXEC) {
00299     DoClearSquare(tile);
00300   }
00301 
00302   return CommandCost();
00303 }
00304 
00305 static void AddAcceptedCargo_Unmovable(TileIndex tile, CargoArray &acceptance, uint32 *always_accepted)
00306 {
00307   if (!IsCompanyHQ(tile)) return;
00308 
00309   /* HQ accepts passenger and mail; but we have to divide the values
00310    * between 4 tiles it occupies! */
00311 
00312   /* HQ level (depends on company performance) in the range 1..5. */
00313   uint level = GetCompanyHQSize(tile) + 1;
00314 
00315   /* Top town building generates 10, so to make HQ interesting, the top
00316    * type makes 20. */
00317   acceptance[CT_PASSENGERS] += max(1U, level);
00318   SetBit(*always_accepted, CT_PASSENGERS);
00319 
00320   /* Top town building generates 4, HQ can make up to 8. The
00321    * proportion passengers:mail is different because such a huge
00322    * commercial building generates unusually high amount of mail
00323    * correspondence per physical visitor. */
00324   acceptance[CT_MAIL] += max(1U, level / 2);
00325   SetBit(*always_accepted, CT_MAIL);
00326 }
00327 
00328 
00329 static void GetTileDesc_Unmovable(TileIndex tile, TileDesc *td)
00330 {
00331   td->str = GetUnmovableSpec(GetUnmovableType(tile))->name;
00332   td->owner[0] = GetTileOwner(tile);
00333 }
00334 
00335 static void TileLoop_Unmovable(TileIndex tile)
00336 {
00337   if (!IsCompanyHQ(tile)) return;
00338 
00339   /* HQ accepts passenger and mail; but we have to divide the values
00340    * between 4 tiles it occupies! */
00341 
00342   /* HQ level (depends on company performance) in the range 1..5. */
00343   uint level = GetCompanyHQSize(tile) + 1;
00344   assert(level < 6);
00345 
00346   StationFinder stations(TileArea(tile, 2, 2));
00347 
00348   uint r = Random();
00349   /* Top town buildings generate 250, so the top HQ type makes 256. */
00350   if (GB(r, 0, 8) < (256 / 4 / (6 - level))) {
00351     uint amt = GB(r, 0, 8) / 8 / 4 + 1;
00352     if (_economy.fluct <= 0) amt = (amt + 1) >> 1;
00353     MoveGoodsToStation(CT_PASSENGERS, amt, ST_HEADQUARTERS, GetTileOwner(tile), stations.GetStations());
00354   }
00355 
00356   /* Top town building generates 90, HQ can make up to 196. The
00357    * proportion passengers:mail is about the same as in the acceptance
00358    * equations. */
00359   if (GB(r, 8, 8) < (196 / 4 / (6 - level))) {
00360     uint amt = GB(r, 8, 8) / 8 / 4 + 1;
00361     if (_economy.fluct <= 0) amt = (amt + 1) >> 1;
00362     MoveGoodsToStation(CT_MAIL, amt, ST_HEADQUARTERS, GetTileOwner(tile), stations.GetStations());
00363   }
00364 }
00365 
00366 
00367 static TrackStatus GetTileTrackStatus_Unmovable(TileIndex tile, TransportType mode, uint sub_mode, DiagDirection side)
00368 {
00369   return 0;
00370 }
00371 
00372 static bool ClickTile_Unmovable(TileIndex tile)
00373 {
00374   if (!IsCompanyHQ(tile)) return false;
00375 
00376   ShowCompany(GetTileOwner(tile));
00377   return true;
00378 }
00379 
00380 
00381 /* checks, if a radio tower is within a 9x9 tile square around tile */
00382 static bool IsRadioTowerNearby(TileIndex tile)
00383 {
00384   TileIndex tile_s = tile - TileDiffXY(min(TileX(tile), 4U), min(TileY(tile), 4U));
00385   uint w = min(TileX(tile), 4U) + 1 + min(MapMaxX() - TileX(tile), 4U);
00386   uint h = min(TileY(tile), 4U) + 1 + min(MapMaxY() - TileY(tile), 4U);
00387 
00388   TILE_LOOP(tile, w, h, tile_s) {
00389     if (IsTransmitterTile(tile)) return true;
00390   }
00391 
00392   return false;
00393 }
00394 
00395 void GenerateUnmovables()
00396 {
00397   if (_settings_game.game_creation.landscape == LT_TOYLAND) return;
00398 
00399   /* add radio tower */
00400   int radiotower_to_build = ScaleByMapSize(15); // maximum number of radio towers on the map
00401   int lighthouses_to_build = _settings_game.game_creation.landscape == LT_TROPIC ? 0 : ScaleByMapSize1D((Random() & 3) + 7);
00402 
00403   /* Scale the amount of lighthouses with the amount of land at the borders. */
00404   if (_settings_game.construction.freeform_edges && lighthouses_to_build != 0) {
00405     uint num_water_tiles = 0;
00406     for (uint x = 0; x < MapMaxX(); x++) {
00407       if (IsTileType(TileXY(x, 1), MP_WATER)) num_water_tiles++;
00408       if (IsTileType(TileXY(x, MapMaxY() - 1), MP_WATER)) num_water_tiles++;
00409     }
00410     for (uint y = 1; y < MapMaxY() - 1; y++) {
00411       if (IsTileType(TileXY(1, y), MP_WATER)) num_water_tiles++;
00412       if (IsTileType(TileXY(MapMaxX() - 1, y), MP_WATER)) num_water_tiles++;
00413     }
00414     /* The -6 is because the top borders are MP_VOID (-2) and all corners
00415      * are counted twice (-4). */
00416     lighthouses_to_build = lighthouses_to_build * num_water_tiles / (2 * MapMaxY() + 2 * MapMaxX() - 6);
00417   }
00418 
00419   SetGeneratingWorldProgress(GWP_UNMOVABLE, radiotower_to_build + lighthouses_to_build);
00420 
00421   for (uint i = ScaleByMapSize(1000); i != 0; i--) {
00422     TileIndex tile = RandomTile();
00423 
00424     uint h;
00425     if (IsTileType(tile, MP_CLEAR) && GetTileSlope(tile, &h) == SLOPE_FLAT && h >= TILE_HEIGHT * 4 && !IsBridgeAbove(tile)) {
00426       if (IsRadioTowerNearby(tile)) continue;
00427 
00428       MakeTransmitter(tile);
00429       IncreaseGeneratingWorldProgress(GWP_UNMOVABLE);
00430       if (--radiotower_to_build == 0) break;
00431     }
00432   }
00433 
00434   /* add lighthouses */
00435   uint maxx = MapMaxX();
00436   uint maxy = MapMaxY();
00437   for (int loop_count = 0; loop_count < 1000 && lighthouses_to_build != 0; loop_count++) {
00438     uint r = Random();
00439 
00440     /* Scatter the lighthouses more evenly around the perimeter */
00441     int perimeter = (GB(r, 16, 16) % (2 * (maxx + maxy))) - maxy;
00442     DiagDirection dir;
00443     for (dir = DIAGDIR_NE; perimeter > 0; dir++) {
00444       perimeter -= (DiagDirToAxis(dir) == AXIS_X) ? maxx : maxy;
00445     }
00446 
00447     TileIndex tile;
00448     switch (dir) {
00449       default:
00450       case DIAGDIR_NE: tile = TileXY(maxx - 1, r % maxy); break;
00451       case DIAGDIR_SE: tile = TileXY(r % maxx, 1); break;
00452       case DIAGDIR_SW: tile = TileXY(1,        r % maxy); break;
00453       case DIAGDIR_NW: tile = TileXY(r % maxx, maxy - 1); break;
00454     }
00455 
00456     /* Only build lighthouses at tiles where the border is sea. */
00457     if (!IsTileType(tile, MP_WATER)) continue;
00458 
00459     for (int j = 0; j < 19; j++) {
00460       uint h;
00461       if (IsTileType(tile, MP_CLEAR) && GetTileSlope(tile, &h) == SLOPE_FLAT && h <= TILE_HEIGHT * 2 && !IsBridgeAbove(tile)) {
00462         MakeLighthouse(tile);
00463         IncreaseGeneratingWorldProgress(GWP_UNMOVABLE);
00464         lighthouses_to_build--;
00465         assert(tile < MapSize());
00466         break;
00467       }
00468       tile = AddTileIndexDiffCWrap(tile, TileIndexDiffCByDiagDir(dir));
00469       if (tile == INVALID_TILE) break;
00470     }
00471   }
00472 }
00473 
00474 static void ChangeTileOwner_Unmovable(TileIndex tile, Owner old_owner, Owner new_owner)
00475 {
00476   if (!IsTileOwner(tile, old_owner)) return;
00477 
00478   if (IsOwnedLand(tile) && new_owner != INVALID_OWNER) {
00479     SetTileOwner(tile, new_owner);
00480   } else if (IsStatueTile(tile)) {
00481     TownID town = GetStatueTownID(tile);
00482     Town *t = Town::Get(town);
00483     ClrBit(t->statues, old_owner);
00484     if (new_owner != INVALID_OWNER && !HasBit(t->statues, new_owner)) {
00485       /* Transfer ownership to the new company */
00486       SetBit(t->statues, new_owner);
00487       SetTileOwner(tile, new_owner);
00488     } else {
00489       DoClearSquare(tile);
00490     }
00491 
00492     SetWindowDirty(WC_TOWN_AUTHORITY, town);
00493   } else {
00494     DoClearSquare(tile);
00495   }
00496 }
00497 
00498 static CommandCost TerraformTile_Unmovable(TileIndex tile, DoCommandFlag flags, uint z_new, Slope tileh_new)
00499 {
00500   /* Owned land remains unsold */
00501   if (IsOwnedLand(tile) && CheckTileOwnership(tile)) return CommandCost();
00502 
00503   if (AutoslopeEnabled() && (IsStatue(tile) || IsCompanyHQ(tile))) {
00504     if (!IsSteepSlope(tileh_new) && (z_new + GetSlopeMaxZ(tileh_new) == GetTileMaxZ(tile))) return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]);
00505   }
00506 
00507   return DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00508 }
00509 
00510 extern const TileTypeProcs _tile_type_unmovable_procs = {
00511   DrawTile_Unmovable,             // draw_tile_proc
00512   GetSlopeZ_Unmovable,            // get_slope_z_proc
00513   ClearTile_Unmovable,            // clear_tile_proc
00514   AddAcceptedCargo_Unmovable,     // add_accepted_cargo_proc
00515   GetTileDesc_Unmovable,          // get_tile_desc_proc
00516   GetTileTrackStatus_Unmovable,   // get_tile_track_status_proc
00517   ClickTile_Unmovable,            // click_tile_proc
00518   NULL,                           // animate_tile_proc
00519   TileLoop_Unmovable,             // tile_loop_clear
00520   ChangeTileOwner_Unmovable,      // change_tile_owner_clear
00521   NULL,                           // add_produced_cargo_proc
00522   NULL,                           // vehicle_enter_tile_proc
00523   GetFoundation_Unmovable,        // get_foundation_proc
00524   TerraformTile_Unmovable,        // terraform_tile_proc
00525 };

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