unmovable_cmd.cpp

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00001 /* $Id: unmovable_cmd.cpp 15718 2009-03-15 00:32:18Z rubidium $ */
00002 
00005 #include "stdafx.h"
00006 #include "openttd.h"
00007 #include "landscape.h"
00008 #include "command_func.h"
00009 #include "viewport_func.h"
00010 #include "company_base.h"
00011 #include "town.h"
00012 #include "sprite.h"
00013 #include "bridge_map.h"
00014 #include "unmovable_map.h"
00015 #include "genworld.h"
00016 #include "autoslope.h"
00017 #include "transparency.h"
00018 #include "functions.h"
00019 #include "window_func.h"
00020 #include "vehicle_func.h"
00021 #include "company_gui.h"
00022 #include "economy_func.h"
00023 #include "cheat_type.h"
00024 #include "landscape_type.h"
00025 #include "unmovable.h"
00026 
00027 #include "table/strings.h"
00028 #include "table/sprites.h"
00029 #include "table/unmovable_land.h"
00030 
00039 static inline const UnmovableSpec *GetUnmovableSpec(UnmovableType type)
00040 {
00041   assert(type < UNMOVABLE_MAX);
00042   return &_original_unmovable[type];
00043 }
00044 
00052 static CommandCost DestroyCompanyHQ(CompanyID cid, DoCommandFlag flags)
00053 {
00054   Company *c = GetCompany(cid);
00055 
00056   if (flags & DC_EXEC) {
00057     TileIndex t = c->location_of_HQ;
00058 
00059     DoClearSquare(t);
00060     DoClearSquare(t + TileDiffXY(0, 1));
00061     DoClearSquare(t + TileDiffXY(1, 0));
00062     DoClearSquare(t + TileDiffXY(1, 1));
00063     c->location_of_HQ = INVALID_TILE; // reset HQ position
00064     InvalidateWindow(WC_COMPANY, cid);
00065   }
00066 
00067   /* cost of relocating company is 1% of company value */
00068   return CommandCost(EXPENSES_PROPERTY, CalculateCompanyValue(c) / 100);
00069 }
00070 
00071 void UpdateCompanyHQ(Company *c, uint score)
00072 {
00073   byte val;
00074   TileIndex tile = c->location_of_HQ;
00075 
00076   if (tile == INVALID_TILE) return;
00077 
00078   (val = 0, score < 170) ||
00079   (val++, score < 350) ||
00080   (val++, score < 520) ||
00081   (val++, score < 720) ||
00082   (val++, true);
00083 
00084   EnlargeCompanyHQ(tile, val);
00085 
00086   MarkTileDirtyByTile(tile);
00087   MarkTileDirtyByTile(tile + TileDiffXY(0, 1));
00088   MarkTileDirtyByTile(tile + TileDiffXY(1, 0));
00089   MarkTileDirtyByTile(tile + TileDiffXY(1, 1));
00090 }
00091 
00092 extern CommandCost CheckFlatLandBelow(TileIndex tile, uint w, uint h, DoCommandFlag flags, uint invalid_dirs, StationID *station, bool check_clear = true);
00093 
00100 CommandCost CmdBuildCompanyHQ(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00101 {
00102   Company *c = GetCompany(_current_company);
00103   CommandCost cost(EXPENSES_PROPERTY);
00104 
00105   cost = CheckFlatLandBelow(tile, 2, 2, flags, 0, NULL);
00106   if (CmdFailed(cost)) return cost;
00107 
00108   if (c->location_of_HQ != INVALID_TILE) { // Moving HQ
00109     cost.AddCost(DestroyCompanyHQ(_current_company, flags));
00110   }
00111 
00112   if (flags & DC_EXEC) {
00113     int score = UpdateCompanyRatingAndValue(c, false);
00114 
00115     c->location_of_HQ = tile;
00116 
00117     MakeCompanyHQ(tile, _current_company);
00118 
00119     UpdateCompanyHQ(c, score);
00120     InvalidateWindow(WC_COMPANY, c->index);
00121   }
00122 
00123   return cost;
00124 }
00125 
00134 CommandCost CmdPurchaseLandArea(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00135 {
00136   CommandCost cost(EXPENSES_CONSTRUCTION);
00137 
00138   if (IsOwnedLandTile(tile) && IsTileOwner(tile, _current_company)) {
00139     return_cmd_error(STR_5807_YOU_ALREADY_OWN_IT);
00140   }
00141 
00142   cost = DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00143   if (CmdFailed(cost)) return CMD_ERROR;
00144 
00145   if (flags & DC_EXEC) {
00146     MakeOwnedLand(tile, _current_company);
00147     MarkTileDirtyByTile(tile);
00148   }
00149 
00150   return cost.AddCost(GetUnmovableSpec(UNMOVABLE_OWNED_LAND)->GetBuildingCost());
00151 }
00152 
00161 CommandCost CmdSellLandArea(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00162 {
00163   if (!IsOwnedLandTile(tile)) return CMD_ERROR;
00164   if (!CheckTileOwnership(tile) && _current_company != OWNER_WATER) return CMD_ERROR;
00165 
00166   if (!EnsureNoVehicleOnGround(tile)) return CMD_ERROR;
00167 
00168   if (flags & DC_EXEC) DoClearSquare(tile);
00169 
00170   return CommandCost(EXPENSES_CONSTRUCTION, - GetUnmovableSpec(UNMOVABLE_OWNED_LAND)->GetRemovalCost());
00171 }
00172 
00173 static Foundation GetFoundation_Unmovable(TileIndex tile, Slope tileh);
00174 
00175 static void DrawTile_Unmovable(TileInfo *ti)
00176 {
00177 
00178   switch (GetUnmovableType(ti->tile)) {
00179     default: NOT_REACHED(); break;
00180     case UNMOVABLE_TRANSMITTER:
00181     case UNMOVABLE_LIGHTHOUSE: {
00182       const DrawTileSeqStruct *dtu = &_draw_tile_transmitterlighthouse_data[GetUnmovableType(ti->tile)];
00183 
00184       if (ti->tileh != SLOPE_FLAT) DrawFoundation(ti, FOUNDATION_LEVELED);
00185       DrawClearLandTile(ti, 2);
00186 
00187       if (IsInvisibilitySet(TO_STRUCTURES)) break;
00188 
00189       AddSortableSpriteToDraw(
00190         dtu->image.sprite, PAL_NONE, ti->x | dtu->delta_x, ti->y | dtu->delta_y,
00191         dtu->size_x, dtu->size_y, dtu->size_z, ti->z,
00192         IsTransparencySet(TO_STRUCTURES)
00193       );
00194       break;
00195     }
00196 
00197     case UNMOVABLE_STATUE:
00198       /* This should prevent statues from sinking into the ground when on a slope. */
00199       if (ti->tileh != SLOPE_FLAT) DrawFoundation(ti, GetFoundation_Unmovable(ti->tile, ti->tileh));
00200 
00201       DrawGroundSprite(SPR_CONCRETE_GROUND, PAL_NONE);
00202 
00203       if (IsInvisibilitySet(TO_STRUCTURES)) break;
00204 
00205       AddSortableSpriteToDraw(SPR_STATUE_COMPANY, COMPANY_SPRITE_COLOUR(GetTileOwner(ti->tile)), ti->x, ti->y, 16, 16, 25, ti->z, IsTransparencySet(TO_STRUCTURES));
00206       break;
00207 
00208     case UNMOVABLE_OWNED_LAND:
00209       DrawClearLandTile(ti, 0);
00210 
00211       AddSortableSpriteToDraw(
00212         SPR_BOUGHT_LAND, COMPANY_SPRITE_COLOUR(GetTileOwner(ti->tile)),
00213         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)
00214       );
00215       DrawBridgeMiddle(ti);
00216       break;
00217 
00218     case UNMOVABLE_HQ:{
00219       assert(IsCompanyHQ(ti->tile));
00220       if (ti->tileh != SLOPE_FLAT) DrawFoundation(ti, FOUNDATION_LEVELED);
00221 
00222       SpriteID palette = COMPANY_SPRITE_COLOUR(GetTileOwner(ti->tile));
00223 
00224       const DrawTileSprites *t = &_unmovable_display_datas[GetCompanyHQSize(ti->tile) << 2 | GetCompanyHQSection(ti->tile)];
00225       DrawGroundSprite(t->ground.sprite, palette);
00226 
00227       if (IsInvisibilitySet(TO_STRUCTURES)) break;
00228 
00229       const DrawTileSeqStruct *dtss;
00230       foreach_draw_tile_seq(dtss, t->seq) {
00231         AddSortableSpriteToDraw(
00232           dtss->image.sprite, palette,
00233           ti->x + dtss->delta_x, ti->y + dtss->delta_y,
00234           dtss->size_x, dtss->size_y,
00235           dtss->size_z, ti->z + dtss->delta_z,
00236           IsTransparencySet(TO_STRUCTURES)
00237         );
00238       }
00239       break;
00240     }
00241   }
00242 }
00243 
00244 static uint GetSlopeZ_Unmovable(TileIndex tile, uint x, uint y)
00245 {
00246   if (IsOwnedLand(tile)) {
00247     uint z;
00248     Slope tileh = GetTileSlope(tile, &z);
00249 
00250     return z + GetPartialZ(x & 0xF, y & 0xF, tileh);
00251   } else {
00252     return GetTileMaxZ(tile);
00253   }
00254 }
00255 
00256 static Foundation GetFoundation_Unmovable(TileIndex tile, Slope tileh)
00257 {
00258   return IsOwnedLand(tile) ? FOUNDATION_NONE : FlatteningFoundation(tileh);
00259 }
00260 
00261 static CommandCost ClearTile_Unmovable(TileIndex tile, DoCommandFlag flags)
00262 {
00263   if (IsCompanyHQ(tile)) {
00264     if (_current_company == OWNER_WATER) {
00265       return DestroyCompanyHQ(GetTileOwner(tile), DC_EXEC);
00266     } else {
00267       return_cmd_error(flags & DC_AUTO ? STR_5804_COMPANY_HEADQUARTERS_IN : INVALID_STRING_ID);
00268     }
00269   }
00270 
00271   if (IsOwnedLand(tile)) {
00272     return DoCommand(tile, 0, 0, flags, CMD_SELL_LAND_AREA);
00273   }
00274 
00275   /* checks if you're allowed to remove unmovable things */
00276   if (_game_mode != GM_EDITOR && _current_company != OWNER_WATER && ((flags & DC_AUTO || !_cheats.magic_bulldozer.value)) )
00277     return_cmd_error(flags & DC_AUTO ? STR_5800_OBJECT_IN_THE_WAY : INVALID_STRING_ID);
00278 
00279   if (IsStatue(tile)) {
00280     if (flags & DC_AUTO) return_cmd_error(STR_5800_OBJECT_IN_THE_WAY);
00281 
00282     TownID town = GetStatueTownID(tile);
00283     ClrBit(GetTown(town)->statues, GetTileOwner(tile));
00284     InvalidateWindow(WC_TOWN_AUTHORITY, town);
00285   }
00286 
00287   if (flags & DC_EXEC) {
00288     DoClearSquare(tile);
00289   }
00290 
00291   return CommandCost();
00292 }
00293 
00294 static void GetAcceptedCargo_Unmovable(TileIndex tile, AcceptedCargo ac)
00295 {
00296   if (!IsCompanyHQ(tile)) return;
00297 
00298   /* HQ accepts passenger and mail; but we have to divide the values
00299    * between 4 tiles it occupies! */
00300 
00301   /* HQ level (depends on company performance) in the range 1..5. */
00302   uint level = GetCompanyHQSize(tile) + 1;
00303 
00304   /* Top town building generates 10, so to make HQ interesting, the top
00305    * type makes 20. */
00306   ac[CT_PASSENGERS] = max(1U, level);
00307 
00308   /* Top town building generates 4, HQ can make up to 8. The
00309    * proportion passengers:mail is different because such a huge
00310    * commercial building generates unusually high amount of mail
00311    * correspondence per physical visitor. */
00312   ac[CT_MAIL] = max(1U, level / 2);
00313 }
00314 
00315 
00316 static void GetTileDesc_Unmovable(TileIndex tile, TileDesc *td)
00317 {
00318   td->str = GetUnmovableSpec(GetUnmovableType(tile))->name;
00319   td->owner[0] = GetTileOwner(tile);
00320 }
00321 
00322 static void AnimateTile_Unmovable(TileIndex tile)
00323 {
00324   /* not used */
00325 }
00326 
00327 static void TileLoop_Unmovable(TileIndex tile)
00328 {
00329   if (!IsCompanyHQ(tile)) return;
00330 
00331   /* HQ accepts passenger and mail; but we have to divide the values
00332    * between 4 tiles it occupies! */
00333 
00334   /* HQ level (depends on company performance) in the range 1..5. */
00335   uint level = GetCompanyHQSize(tile) + 1;
00336   assert(level < 6);
00337 
00338   uint r = Random();
00339   /* Top town buildings generate 250, so the top HQ type makes 256. */
00340   if (GB(r, 0, 8) < (256 / 4 / (6 - level))) {
00341     uint amt = GB(r, 0, 8) / 8 / 4 + 1;
00342     if (_economy.fluct <= 0) amt = (amt + 1) >> 1;
00343     MoveGoodsToStation(tile, 2, 2, CT_PASSENGERS, amt);
00344   }
00345 
00346   /* Top town building generates 90, HQ can make up to 196. The
00347    * proportion passengers:mail is about the same as in the acceptance
00348    * equations. */
00349   if (GB(r, 8, 8) < (196 / 4 / (6 - level))) {
00350     uint amt = GB(r, 8, 8) / 8 / 4 + 1;
00351     if (_economy.fluct <= 0) amt = (amt + 1) >> 1;
00352     MoveGoodsToStation(tile, 2, 2, CT_MAIL, amt);
00353   }
00354 }
00355 
00356 
00357 static TrackStatus GetTileTrackStatus_Unmovable(TileIndex tile, TransportType mode, uint sub_mode, DiagDirection side)
00358 {
00359   return 0;
00360 }
00361 
00362 static bool ClickTile_Unmovable(TileIndex tile)
00363 {
00364   if (!IsCompanyHQ(tile)) return false;
00365 
00366   ShowCompany(GetTileOwner(tile));
00367   return true;
00368 }
00369 
00370 
00371 /* checks, if a radio tower is within a 9x9 tile square around tile */
00372 static bool IsRadioTowerNearby(TileIndex tile)
00373 {
00374   TileIndex tile_s = tile - TileDiffXY(min(TileX(tile), 4U), min(TileY(tile), 4U));
00375   uint w = min(TileX(tile), 4U) + 1 + min(MapMaxX() - TileX(tile), 4U);
00376   uint h = min(TileY(tile), 4U) + 1 + min(MapMaxY() - TileY(tile), 4U);
00377 
00378   BEGIN_TILE_LOOP(tile, w, h, tile_s)
00379     if (IsTransmitterTile(tile)) return true;
00380   END_TILE_LOOP(tile, w, h, tile_s)
00381 
00382   return false;
00383 }
00384 
00385 void GenerateUnmovables()
00386 {
00387   if (_settings_game.game_creation.landscape == LT_TOYLAND) return;
00388 
00389   /* add radio tower */
00390   int radiotower_to_build = ScaleByMapSize(15); // maximum number of radio towers on the map
00391   int lighthouses_to_build = _settings_game.game_creation.landscape == LT_TROPIC ? 0 : ScaleByMapSize1D((Random() & 3) + 7);
00392 
00393   /* Scale the amount of lighthouses with the amount of land at the borders. */
00394   if (_settings_game.construction.freeform_edges && lighthouses_to_build != 0) {
00395     uint num_water_tiles = 0;
00396     for (uint x = 0; x < MapMaxX(); x++) {
00397       if (IsTileType(TileXY(x, 1), MP_WATER)) num_water_tiles++;
00398       if (IsTileType(TileXY(x, MapMaxY() - 1), MP_WATER)) num_water_tiles++;
00399     }
00400     for (uint y = 1; y < MapMaxY() - 1; y++) {
00401       if (IsTileType(TileXY(1, y), MP_WATER)) num_water_tiles++;
00402       if (IsTileType(TileXY(MapMaxX() - 1, y), MP_WATER)) num_water_tiles++;
00403     }
00404     /* The -6 is because the top borders are MP_VOID (-2) and all corners
00405      * are counted twice (-4). */
00406     lighthouses_to_build = lighthouses_to_build * num_water_tiles / (2 * MapMaxY() + 2 * MapMaxX() - 6);
00407   }
00408 
00409   SetGeneratingWorldProgress(GWP_UNMOVABLE, radiotower_to_build + lighthouses_to_build);
00410 
00411   for (uint i = ScaleByMapSize(1000); i != 0; i--) {
00412     TileIndex tile = RandomTile();
00413 
00414     uint h;
00415     if (IsTileType(tile, MP_CLEAR) && GetTileSlope(tile, &h) == SLOPE_FLAT && h >= TILE_HEIGHT * 4 && !IsBridgeAbove(tile)) {
00416       if (IsRadioTowerNearby(tile)) continue;
00417 
00418       MakeTransmitter(tile);
00419       IncreaseGeneratingWorldProgress(GWP_UNMOVABLE);
00420       if (--radiotower_to_build == 0) break;
00421     }
00422   }
00423 
00424   /* add lighthouses */
00425   uint maxx = MapMaxX();
00426   uint maxy = MapMaxY();
00427   for (int loop_count = 0; loop_count < 1000 && lighthouses_to_build != 0; loop_count++) {
00428     uint r = Random();
00429 
00430     /* Scatter the lighthouses more evenly around the perimeter */
00431     int perimeter = (GB(r, 16, 16) % (2 * (maxx + maxy))) - maxy;
00432     DiagDirection dir;
00433     for (dir = DIAGDIR_NE; perimeter > 0; dir++) {
00434       perimeter -= (DiagDirToAxis(dir) == AXIS_X) ? maxx : maxy;
00435     }
00436 
00437     TileIndex tile;
00438     switch (dir) {
00439       default:
00440       case DIAGDIR_NE: tile = TileXY(maxx - 1, r % maxy); break;
00441       case DIAGDIR_SE: tile = TileXY(r % maxx, 1); break;
00442       case DIAGDIR_SW: tile = TileXY(1,        r % maxy); break;
00443       case DIAGDIR_NW: tile = TileXY(r % maxx, maxy - 1); break;
00444     }
00445 
00446     /* Only build lighthouses at tiles where the border is sea. */
00447     if (!IsTileType(tile, MP_WATER)) continue;
00448 
00449     for (int j = 0; j < 19; j++) {
00450       uint h;
00451       if (IsTileType(tile, MP_CLEAR) && GetTileSlope(tile, &h) == SLOPE_FLAT && h <= TILE_HEIGHT * 2 && !IsBridgeAbove(tile)) {
00452         MakeLighthouse(tile);
00453         IncreaseGeneratingWorldProgress(GWP_UNMOVABLE);
00454         lighthouses_to_build--;
00455         assert(tile < MapSize());
00456         break;
00457       }
00458       tile = AddTileIndexDiffCWrap(tile, TileIndexDiffCByDiagDir(dir));
00459       if (tile == INVALID_TILE) break;
00460     }
00461   }
00462 }
00463 
00464 static void ChangeTileOwner_Unmovable(TileIndex tile, Owner old_owner, Owner new_owner)
00465 {
00466   if (!IsTileOwner(tile, old_owner)) return;
00467 
00468   if (IsOwnedLand(tile) && new_owner != INVALID_OWNER) {
00469     SetTileOwner(tile, new_owner);
00470   } else if (IsStatueTile(tile)) {
00471     TownID town = GetStatueTownID(tile);
00472     Town *t = GetTown(town);
00473     ClrBit(t->statues, old_owner);
00474     if (new_owner != INVALID_OWNER && !HasBit(t->statues, new_owner)) {
00475       /* Transfer ownership to the new company */
00476       SetBit(t->statues, new_owner);
00477       SetTileOwner(tile, new_owner);
00478     } else {
00479       DoClearSquare(tile);
00480     }
00481 
00482     InvalidateWindow(WC_TOWN_AUTHORITY, town);
00483   } else {
00484     DoClearSquare(tile);
00485   }
00486 }
00487 
00488 static CommandCost TerraformTile_Unmovable(TileIndex tile, DoCommandFlag flags, uint z_new, Slope tileh_new)
00489 {
00490   /* Owned land remains unsold */
00491   if (IsOwnedLand(tile) && CheckTileOwnership(tile)) return CommandCost();
00492 
00493   if (AutoslopeEnabled() && (IsStatue(tile) || IsCompanyHQ(tile))) {
00494     if (!IsSteepSlope(tileh_new) && (z_new + GetSlopeMaxZ(tileh_new) == GetTileMaxZ(tile))) return CommandCost(EXPENSES_CONSTRUCTION, _price.terraform);
00495   }
00496 
00497   return DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00498 }
00499 
00500 extern const TileTypeProcs _tile_type_unmovable_procs = {
00501   DrawTile_Unmovable,             // draw_tile_proc
00502   GetSlopeZ_Unmovable,            // get_slope_z_proc
00503   ClearTile_Unmovable,            // clear_tile_proc
00504   GetAcceptedCargo_Unmovable,     // get_accepted_cargo_proc
00505   GetTileDesc_Unmovable,          // get_tile_desc_proc
00506   GetTileTrackStatus_Unmovable,   // get_tile_track_status_proc
00507   ClickTile_Unmovable,            // click_tile_proc
00508   AnimateTile_Unmovable,          // animate_tile_proc
00509   TileLoop_Unmovable,             // tile_loop_clear
00510   ChangeTileOwner_Unmovable,      // change_tile_owner_clear
00511   NULL,                           // get_produced_cargo_proc
00512   NULL,                           // vehicle_enter_tile_proc
00513   GetFoundation_Unmovable,        // get_foundation_proc
00514   TerraformTile_Unmovable,        // terraform_tile_proc
00515 };

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