/* $Id$ */ /* * This file is part of OpenTTD. * 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. * 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. * 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/>. */ /** @file object_cmd.cpp Handling of object tiles. */ #include "stdafx.h" #include "landscape.h" #include "command_func.h" #include "viewport_func.h" #include "company_base.h" #include "town.h" #include "bridge_map.h" #include "genworld.h" #include "autoslope.h" #include "clear_func.h" #include "water.h" #include "window_func.h" #include "company_gui.h" #include "cheat_type.h" #include "object.h" #include "cargopacket.h" #include "core/random_func.hpp" #include "core/pool_func.hpp" #include "object_map.h" #include "object_base.h" #include "newgrf_config.h" #include "newgrf_object.h" #include "date_func.h" #include "newgrf_debug.h" #include "vehicle_func.h" #include "table/strings.h" #include "table/object_land.h" ObjectPool _object_pool("Object"); INSTANTIATE_POOL_METHODS(Object) uint16 Object::counts[NUM_OBJECTS]; /** * Get the object associated with a tile. * @param tile The tile to fetch the object for. * @return The object. */ /* static */ Object *Object::GetByTile(TileIndex tile) { return Object::Get(GetObjectIndex(tile)); } /** Initialize/reset the objects. */ void InitializeObjects() { Object::ResetTypeCounts(); } /** * Actually build the object. * @param type The type of object to build. * @param tile The tile to build the northern tile of the object on. * @param owner The owner of the object. * @param town Town the tile is related with. * @param view The view for the object. * @pre All preconditions for building the object at that location * are met, e.g. slope and clearness of tiles are checked. */ void BuildObject(ObjectType type, TileIndex tile, CompanyID owner, Town *town, uint8 view) { const ObjectSpec *spec = ObjectSpec::Get(type); TileArea ta(tile, GB(spec->size, HasBit(view, 0) ? 4 : 0, 4), GB(spec->size, HasBit(view, 0) ? 0 : 4, 4)); Object *o = new Object(); o->location = ta; o->town = town == NULL ? CalcClosestTownFromTile(tile) : town; o->build_date = _date; o->view = view; /* If nothing owns the object, the colour will be random. Otherwise * get the colour from the company's livery settings. */ if (owner == OWNER_NONE) { o->colour = Random(); } else { const Livery *l = Company::Get(owner)->livery; o->colour = l->colour1 + l->colour2 * 16; } /* If the object wants only one colour, then give it that colour. */ if ((spec->flags & OBJECT_FLAG_2CC_COLOUR) == 0) o->colour &= 0xF; if (HasBit(spec->callback_mask, CBM_OBJ_COLOUR)) { uint16 res = GetObjectCallback(CBID_OBJECT_COLOUR, o->colour, 0, spec, o, tile); if (res != CALLBACK_FAILED) { if (res >= 0x100) ErrorUnknownCallbackResult(spec->grf_prop.grffile->grfid, CBID_OBJECT_COLOUR, res); o->colour = GB(res, 0, 8); } } assert(o->town != NULL); TILE_AREA_LOOP(t, ta) { WaterClass wc = (IsWaterTile(t) ? GetWaterClass(t) : WATER_CLASS_INVALID); /* Update company infrastructure counts for objects build on canals owned by nobody. */ if (wc == WATER_CLASS_CANAL && owner != OWNER_NONE && (IsTileOwner(tile, OWNER_NONE) || IsTileOwner(tile, OWNER_WATER))) { Company::Get(owner)->infrastructure.water++; DirtyCompanyInfrastructureWindows(owner); } MakeObject(t, type, owner, o->index, wc, Random()); MarkTileDirtyByTile(t); } Object::IncTypeCount(type); if (spec->flags & OBJECT_FLAG_ANIMATION) TriggerObjectAnimation(o, OAT_BUILT, spec); } /** * Increase the animation stage of a whole structure. * @param tile The tile of the structure. */ static void IncreaseAnimationStage(TileIndex tile) { TileArea ta = Object::GetByTile(tile)->location; TILE_AREA_LOOP(t, ta) { SetAnimationFrame(t, GetAnimationFrame(t) + 1); MarkTileDirtyByTile(t); } } /** We encode the company HQ size in the animation stage. */ #define GetCompanyHQSize GetAnimationFrame /** We encode the company HQ size in the animation stage. */ #define IncreaseCompanyHQSize IncreaseAnimationStage /** * Update the CompanyHQ to the state associated with the given score * @param tile The (northern) tile of the company HQ, or INVALID_TILE. * @param score The current (performance) score of the company. */ void UpdateCompanyHQ(TileIndex tile, uint score) { if (tile == INVALID_TILE) return; byte val; (val = 0, score < 170) || (val++, score < 350) || (val++, score < 520) || (val++, score < 720) || (val++, true); while (GetCompanyHQSize(tile) < val) { IncreaseCompanyHQSize(tile); } } /** * Updates the colour of the object whenever a company changes. * @param c The company the company colour changed of. */ void UpdateObjectColours(const Company *c) { Object *obj; FOR_ALL_OBJECTS(obj) { Owner owner = GetTileOwner(obj->location.tile); /* Not the current owner, so colour doesn't change. */ if (owner != c->index) continue; const ObjectSpec *spec = ObjectSpec::GetByTile(obj->location.tile); /* Using the object colour callback, so not using company colour. */ if (HasBit(spec->callback_mask, CBM_OBJ_COLOUR)) continue; const Livery *l = c->livery; obj->colour = ((spec->flags & OBJECT_FLAG_2CC_COLOUR) ? (l->colour2 * 16) : 0) + l->colour1; } } extern CommandCost CheckBuildableTile(TileIndex tile, uint invalid_dirs, int &allowed_z, bool allow_steep, bool check_bridge); static CommandCost ClearTile_Object(TileIndex tile, DoCommandFlag flags); /** * Build an object object * @param tile tile where the object will be located * @param flags type of operation * @param p1 the object type to build * @param p2 the view for the object * @param text unused * @return the cost of this operation or an error */ CommandCost CmdBuildObject(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text) { CommandCost cost(EXPENSES_PROPERTY); ObjectType type = (ObjectType)GB(p1, 0, 8); uint8 view = GB(p2, 0, 2); const ObjectSpec *spec = ObjectSpec::Get(type); if (!spec->IsAvailable()) return CMD_ERROR; if (spec->flags & OBJECT_FLAG_ONLY_IN_SCENEDIT && (_game_mode != GM_EDITOR || _current_company != OWNER_NONE)) return CMD_ERROR; if (spec->flags & OBJECT_FLAG_ONLY_IN_GAME && (_game_mode != GM_NORMAL || _current_company > MAX_COMPANIES)) return CMD_ERROR; if (view >= spec->views) return CMD_ERROR; if (!Object::CanAllocateItem()) return_cmd_error(STR_ERROR_TOO_MANY_OBJECTS); if (Town::GetNumItems() == 0) return_cmd_error(STR_ERROR_MUST_FOUND_TOWN_FIRST); int size_x = GB(spec->size, HasBit(view, 0) ? 4 : 0, 4); int size_y = GB(spec->size, HasBit(view, 0) ? 0 : 4, 4); TileArea ta(tile, size_x, size_y); if (type == OBJECT_OWNED_LAND) { /* Owned land is special as it can be placed on any slope. */ cost.AddCost(DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR)); } else { /* Check the surface to build on. At this time we can't actually execute the * the CLEAR_TILE commands since the newgrf callback later on can check * some information about the tiles. */ bool allow_water = (spec->flags & (OBJECT_FLAG_BUILT_ON_WATER | OBJECT_FLAG_NOT_ON_LAND)) != 0; bool allow_ground = (spec->flags & OBJECT_FLAG_NOT_ON_LAND) == 0; TILE_AREA_LOOP(t, ta) { if (HasTileWaterGround(t)) { if (!allow_water) return_cmd_error(STR_ERROR_CAN_T_BUILD_ON_WATER); if (!IsWaterTile(t)) { /* Normal water tiles don't have to be cleared. For all other tile types clear * the tile but leave the water. */ cost.AddCost(DoCommand(t, 0, 0, flags & ~DC_NO_WATER & ~DC_EXEC, CMD_LANDSCAPE_CLEAR)); } else { /* Can't build on water owned by another company. */ Owner o = GetTileOwner(t); if (o != OWNER_NONE && o != OWNER_WATER) cost.AddCost(CheckOwnership(o, t)); /* However, the tile has to be clear of vehicles. */ cost.AddCost(EnsureNoVehicleOnGround(t)); } } else { if (!allow_ground) return_cmd_error(STR_ERROR_MUST_BE_BUILT_ON_WATER); /* For non-water tiles, we'll have to clear it before building. */ cost.AddCost(DoCommand(t, 0, 0, flags & ~DC_EXEC, CMD_LANDSCAPE_CLEAR)); } } /* So, now the surface is checked... check the slope of said surface. */ int allowed_z; if (GetTileSlope(tile, &allowed_z) != SLOPE_FLAT) allowed_z++; TILE_AREA_LOOP(t, ta) { uint16 callback = CALLBACK_FAILED; if (HasBit(spec->callback_mask, CBM_OBJ_SLOPE_CHECK)) { TileIndex diff = t - tile; callback = GetObjectCallback(CBID_OBJECT_LAND_SLOPE_CHECK, GetTileSlope(t), TileY(diff) << 4 | TileX(diff), spec, NULL, t, view); } if (callback == CALLBACK_FAILED) { cost.AddCost(CheckBuildableTile(t, 0, allowed_z, false, false)); } else { /* The meaning of bit 10 is inverted for a grf version < 8. */ if (spec->grf_prop.grffile->grf_version < 8) ToggleBit(callback, 10); CommandCost ret = GetErrorMessageFromLocationCallbackResult(callback, spec->grf_prop.grffile->grfid, STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION); if (ret.Failed()) return ret; } } if (flags & DC_EXEC) { /* This is basically a copy of the loop above with the exception that we now * execute the commands and don't check for errors, since that's already done. */ TILE_AREA_LOOP(t, ta) { if (HasTileWaterGround(t)) { if (!IsWaterTile(t)) { DoCommand(t, 0, 0, (flags & ~DC_NO_WATER) | DC_NO_MODIFY_TOWN_RATING, CMD_LANDSCAPE_CLEAR); } } else { DoCommand(t, 0, 0, flags | DC_NO_MODIFY_TOWN_RATING, CMD_LANDSCAPE_CLEAR); } } } } if (cost.Failed()) return cost; /* Finally do a check for bridges. */ TILE_AREA_LOOP(t, ta) { if (MayHaveBridgeAbove(t) && IsBridgeAbove(t) && ( !(spec->flags & OBJECT_FLAG_ALLOW_UNDER_BRIDGE) || (GetTileMaxZ(t) + spec->height >= GetBridgeHeight(GetSouthernBridgeEnd(t))))) { return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST); } } int hq_score = 0; switch (type) { case OBJECT_TRANSMITTER: case OBJECT_LIGHTHOUSE: if (GetTileSlope(tile) != SLOPE_FLAT) return_cmd_error(STR_ERROR_FLAT_LAND_REQUIRED); break; case OBJECT_OWNED_LAND: if (IsTileType(tile, MP_OBJECT) && IsTileOwner(tile, _current_company) && IsOwnedLand(tile)) { return_cmd_error(STR_ERROR_YOU_ALREADY_OWN_IT); } break; case OBJECT_HQ: { Company *c = Company::Get(_current_company); if (c->location_of_HQ != INVALID_TILE) { /* We need to persuade a bit harder to remove the old HQ. */ _current_company = OWNER_WATER; cost.AddCost(ClearTile_Object(c->location_of_HQ, flags)); _current_company = c->index; } if (flags & DC_EXEC) { hq_score = UpdateCompanyRatingAndValue(c, false); c->location_of_HQ = tile; SetWindowDirty(WC_COMPANY, c->index); } break; } case OBJECT_STATUE: /* This may never be constructed using this method. */ return CMD_ERROR; default: // i.e. NewGRF provided. break; } if (flags & DC_EXEC) { BuildObject(type, tile, _current_company, NULL, view); /* Make sure the HQ starts at the right size. */ if (type == OBJECT_HQ) UpdateCompanyHQ(tile, hq_score); } cost.AddCost(ObjectSpec::Get(type)->GetBuildCost() * size_x * size_y); return cost; } static Foundation GetFoundation_Object(TileIndex tile, Slope tileh); static void DrawTile_Object(TileInfo *ti) { ObjectType type = GetObjectType(ti->tile); const ObjectSpec *spec = ObjectSpec::Get(type); /* Fall back for when the object doesn't exist anymore. */ if (!spec->enabled) type = OBJECT_TRANSMITTER; if ((spec->flags & OBJECT_FLAG_HAS_NO_FOUNDATION) == 0) DrawFoundation(ti, GetFoundation_Object(ti->tile, ti->tileh)); if (type < NEW_OBJECT_OFFSET) { const DrawTileSprites *dts = NULL; Owner to = GetTileOwner(ti->tile); PaletteID palette = to == OWNER_NONE ? PAL_NONE : COMPANY_SPRITE_COLOUR(to); if (type == OBJECT_HQ) { TileIndex diff = ti->tile - Object::GetByTile(ti->tile)->location.tile; dts = &_object_hq[GetCompanyHQSize(ti->tile) << 2 | TileY(diff) << 1 | TileX(diff)]; } else { dts = &_objects[type]; } if (spec->flags & OBJECT_FLAG_HAS_NO_FOUNDATION) { /* If an object has no foundation, but tries to draw a (flat) ground * type... we have to be nice and convert that for them. */ switch (dts->ground.sprite) { case SPR_FLAT_BARE_LAND: DrawClearLandTile(ti, 0); break; case SPR_FLAT_1_THIRD_GRASS_TILE: DrawClearLandTile(ti, 1); break; case SPR_FLAT_2_THIRD_GRASS_TILE: DrawClearLandTile(ti, 2); break; case SPR_FLAT_GRASS_TILE: DrawClearLandTile(ti, 3); break; default: DrawGroundSprite(dts->ground.sprite, palette); break; } } else { DrawGroundSprite(dts->ground.sprite, palette); } if (!IsInvisibilitySet(TO_STRUCTURES)) { const DrawTileSeqStruct *dtss; foreach_draw_tile_seq(dtss, dts->seq) { AddSortableSpriteToDraw( dtss->image.sprite, palette, ti->x + dtss->delta_x, ti->y + dtss->delta_y, dtss->size_x, dtss->size_y, dtss->size_z, ti->z + dtss->delta_z, IsTransparencySet(TO_STRUCTURES) ); } } } else { DrawNewObjectTile(ti, spec); } if (spec->flags & OBJECT_FLAG_ALLOW_UNDER_BRIDGE) DrawBridgeMiddle(ti); } static int GetSlopePixelZ_Object(TileIndex tile, uint x, uint y) { if (IsOwnedLand(tile)) { int z; Slope tileh = GetTilePixelSlope(tile, &z); return z + GetPartialPixelZ(x & 0xF, y & 0xF, tileh); } else { return GetTileMaxPixelZ(tile); } } static Foundation GetFoundation_Object(TileIndex tile, Slope tileh) { return IsOwnedLand(tile) ? FOUNDATION_NONE : FlatteningFoundation(tileh); } /** * Perform the actual removal of the object from the map. * @param o The object to really clear. */ static void ReallyClearObjectTile(Object *o) { Object::DecTypeCount(GetObjectType(o->location.tile)); TILE_AREA_LOOP(tile_cur, o->location) { DeleteNewGRFInspectWindow(GSF_OBJECTS, tile_cur); MakeWaterKeepingClass(tile_cur, GetTileOwner(tile_cur)); } delete o; } SmallVector<ClearedObjectArea, 4> _cleared_object_areas; /** * Find the entry in _cleared_object_areas which occupies a certain tile. * @param tile Tile of interest * @return Occupying entry, or NULL if none */ ClearedObjectArea *FindClearedObject(TileIndex tile) { TileArea ta = TileArea(tile, 1, 1); const ClearedObjectArea *end = _cleared_object_areas.End(); for (ClearedObjectArea *coa = _cleared_object_areas.Begin(); coa != end; coa++) { if (coa->area.Intersects(ta)) return coa; } return NULL; } static CommandCost ClearTile_Object(TileIndex tile, DoCommandFlag flags) { ObjectType type = GetObjectType(tile); const ObjectSpec *spec = ObjectSpec::Get(type); /* Get to the northern most tile. */ Object *o = Object::GetByTile(tile); TileArea ta = o->location; CommandCost cost(EXPENSES_CONSTRUCTION, spec->GetClearCost() * ta.w * ta.h / 5); if (spec->flags & OBJECT_FLAG_CLEAR_INCOME) cost.MultiplyCost(-1); // They get an income! /* Towns can't remove any objects. */ if (_current_company == OWNER_TOWN) return CMD_ERROR; /* Water can remove everything! */ if (_current_company != OWNER_WATER) { if ((flags & DC_NO_WATER) && IsTileOnWater(tile)) { /* There is water under the object, treat it as water tile. */ return_cmd_error(STR_ERROR_CAN_T_BUILD_ON_WATER); } else if (!(spec->flags & OBJECT_FLAG_AUTOREMOVE) && (flags & DC_AUTO)) { /* No automatic removal by overbuilding stuff. */ return_cmd_error(type == OBJECT_HQ ? STR_ERROR_COMPANY_HEADQUARTERS_IN : STR_ERROR_OBJECT_IN_THE_WAY); } else if (_game_mode == GM_EDITOR) { /* No further limitations for the editor. */ } else if (GetTileOwner(tile) == OWNER_NONE) { /* Owned by nobody, so we can only remove it with brute force! */ if (!_cheats.magic_bulldozer.value) return CMD_ERROR; } else if (CheckTileOwnership(tile).Failed()) { /* We don't own it!. */ return_cmd_error(STR_ERROR_OWNED_BY); } else if ((spec->flags & OBJECT_FLAG_CANNOT_REMOVE) != 0 && (spec->flags & OBJECT_FLAG_AUTOREMOVE) == 0) { /* In the game editor or with cheats we can remove, otherwise we can't. */ if (!_cheats.magic_bulldozer.value) return CMD_ERROR; /* Removing with the cheat costs more in TTDPatch / the specs. */ cost.MultiplyCost(25); } } else if ((spec->flags & (OBJECT_FLAG_BUILT_ON_WATER | OBJECT_FLAG_NOT_ON_LAND)) != 0) { /* Water can't remove objects that are buildable on water. */ return CMD_ERROR; } switch (type) { case OBJECT_HQ: { Company *c = Company::Get(GetTileOwner(tile)); if (flags & DC_EXEC) { c->location_of_HQ = INVALID_TILE; // reset HQ position SetWindowDirty(WC_COMPANY, c->index); CargoPacket::InvalidateAllFrom(ST_HEADQUARTERS, c->index); } /* cost of relocating company is 1% of company value */ cost = CommandCost(EXPENSES_PROPERTY, CalculateCompanyValue(c) / 100); break; } case OBJECT_STATUE: if (flags & DC_EXEC) { Town *town = o->town; ClrBit(town->statues, GetTileOwner(tile)); SetWindowDirty(WC_TOWN_AUTHORITY, town->index); } break; default: break; } ClearedObjectArea *cleared_area = _cleared_object_areas.Append(); cleared_area->first_tile = tile; cleared_area->area = ta; if (flags & DC_EXEC) ReallyClearObjectTile(o); return cost; } static void AddAcceptedCargo_Object(TileIndex tile, CargoArray &acceptance, uint32 *always_accepted) { if (!IsCompanyHQ(tile)) return; /* HQ accepts passenger and mail; but we have to divide the values * between 4 tiles it occupies! */ /* HQ level (depends on company performance) in the range 1..5. */ uint level = GetCompanyHQSize(tile) + 1; /* Top town building generates 10, so to make HQ interesting, the top * type makes 20. */ acceptance[CT_PASSENGERS] += max(1U, level); SetBit(*always_accepted, CT_PASSENGERS); /* Top town building generates 4, HQ can make up to 8. The * proportion passengers:mail is different because such a huge * commercial building generates unusually high amount of mail * correspondence per physical visitor. */ acceptance[CT_MAIL] += max(1U, level / 2); SetBit(*always_accepted, CT_MAIL); } static void GetTileDesc_Object(TileIndex tile, TileDesc *td) { const ObjectSpec *spec = ObjectSpec::GetByTile(tile); td->str = spec->name; td->owner[0] = GetTileOwner(tile); td->build_date = Object::GetByTile(tile)->build_date; if (spec->grf_prop.grffile != NULL) { td->grf = GetGRFConfig(spec->grf_prop.grffile->grfid)->GetName(); } } static void TileLoop_Object(TileIndex tile) { const ObjectSpec *spec = ObjectSpec::GetByTile(tile); if (spec->flags & OBJECT_FLAG_ANIMATION) { Object *o = Object::GetByTile(tile); TriggerObjectTileAnimation(o, tile, OAT_TILELOOP, spec); if (o->location.tile == tile) TriggerObjectAnimation(o, OAT_256_TICKS, spec); } if (IsTileOnWater(tile)) TileLoop_Water(tile); if (!IsCompanyHQ(tile)) return; /* HQ accepts passenger and mail; but we have to divide the values * between 4 tiles it occupies! */ /* HQ level (depends on company performance) in the range 1..5. */ uint level = GetCompanyHQSize(tile) + 1; assert(level < 6); StationFinder stations(TileArea(tile, 2, 2)); uint r = Random(); /* Top town buildings generate 250, so the top HQ type makes 256. */ if (GB(r, 0, 8) < (256 / 4 / (6 - level))) { uint amt = GB(r, 0, 8) / 8 / 4 + 1; if (EconomyIsInRecession()) amt = (amt + 1) >> 1; MoveGoodsToStation(CT_PASSENGERS, amt, ST_HEADQUARTERS, GetTileOwner(tile), stations.GetStations()); } /* Top town building generates 90, HQ can make up to 196. The * proportion passengers:mail is about the same as in the acceptance * equations. */ if (GB(r, 8, 8) < (196 / 4 / (6 - level))) { uint amt = GB(r, 8, 8) / 8 / 4 + 1; if (EconomyIsInRecession()) amt = (amt + 1) >> 1; MoveGoodsToStation(CT_MAIL, amt, ST_HEADQUARTERS, GetTileOwner(tile), stations.GetStations()); } } static TrackStatus GetTileTrackStatus_Object(TileIndex tile, TransportType mode, uint sub_mode, DiagDirection side) { return 0; } static bool ClickTile_Object(TileIndex tile) { if (!IsCompanyHQ(tile)) return false; ShowCompany(GetTileOwner(tile)); return true; } static void AnimateTile_Object(TileIndex tile) { AnimateNewObjectTile(tile); } /** * Helper function for \c CircularTileSearch. * @param tile The tile to check. * @param user Ignored. * @return True iff the tile has a radio tower. */ static bool HasTransmitter(TileIndex tile, void *user) { return IsTransmitterTile(tile); } void GenerateObjects() { if (_settings_game.game_creation.landscape == LT_TOYLAND) return; /* add radio tower */ int radiotower_to_build = ScaleByMapSize(15); // maximum number of radio towers on the map int lighthouses_to_build = _settings_game.game_creation.landscape == LT_TROPIC ? 0 : ScaleByMapSize1D((Random() & 3) + 7); /* Scale the amount of lighthouses with the amount of land at the borders. */ if (_settings_game.construction.freeform_edges && lighthouses_to_build != 0) { uint num_water_tiles = 0; for (uint x = 0; x < MapMaxX(); x++) { if (IsTileType(TileXY(x, 1), MP_WATER)) num_water_tiles++; if (IsTileType(TileXY(x, MapMaxY() - 1), MP_WATER)) num_water_tiles++; } for (uint y = 1; y < MapMaxY() - 1; y++) { if (IsTileType(TileXY(1, y), MP_WATER)) num_water_tiles++; if (IsTileType(TileXY(MapMaxX() - 1, y), MP_WATER)) num_water_tiles++; } /* The -6 is because the top borders are MP_VOID (-2) and all corners * are counted twice (-4). */ lighthouses_to_build = lighthouses_to_build * num_water_tiles / (2 * MapMaxY() + 2 * MapMaxX() - 6); } SetGeneratingWorldProgress(GWP_OBJECT, radiotower_to_build + lighthouses_to_build); for (uint i = ScaleByMapSize(1000); i != 0 && Object::CanAllocateItem(); i--) { TileIndex tile = RandomTile(); int h; if (IsTileType(tile, MP_CLEAR) && GetTileSlope(tile, &h) == SLOPE_FLAT && h >= 4 && !IsBridgeAbove(tile)) { TileIndex t = tile; if (CircularTileSearch(&t, 9, HasTransmitter, NULL)) continue; BuildObject(OBJECT_TRANSMITTER, tile); IncreaseGeneratingWorldProgress(GWP_OBJECT); if (--radiotower_to_build == 0) break; } } /* add lighthouses */ uint maxx = MapMaxX(); uint maxy = MapMaxY(); for (int loop_count = 0; loop_count < 1000 && lighthouses_to_build != 0 && Object::CanAllocateItem(); loop_count++) { uint r = Random(); /* Scatter the lighthouses more evenly around the perimeter */ int perimeter = (GB(r, 16, 16) % (2 * (maxx + maxy))) - maxy; DiagDirection dir; for (dir = DIAGDIR_NE; perimeter > 0; dir++) { perimeter -= (DiagDirToAxis(dir) == AXIS_X) ? maxx : maxy; } TileIndex tile; switch (dir) { default: case DIAGDIR_NE: tile = TileXY(maxx - 1, r % maxy); break; case DIAGDIR_SE: tile = TileXY(r % maxx, 1); break; case DIAGDIR_SW: tile = TileXY(1, r % maxy); break; case DIAGDIR_NW: tile = TileXY(r % maxx, maxy - 1); break; } /* Only build lighthouses at tiles where the border is sea. */ if (!IsTileType(tile, MP_WATER)) continue; for (int j = 0; j < 19; j++) { int h; if (IsTileType(tile, MP_CLEAR) && GetTileSlope(tile, &h) == SLOPE_FLAT && h <= 2 && !IsBridgeAbove(tile)) { BuildObject(OBJECT_LIGHTHOUSE, tile); IncreaseGeneratingWorldProgress(GWP_OBJECT); lighthouses_to_build--; assert(tile < MapSize()); break; } tile += TileOffsByDiagDir(dir); if (!IsValidTile(tile)) break; } } } static void ChangeTileOwner_Object(TileIndex tile, Owner old_owner, Owner new_owner) { if (!IsTileOwner(tile, old_owner)) return; if (IsOwnedLand(tile) && new_owner != INVALID_OWNER) { SetTileOwner(tile, new_owner); } else if (IsStatueTile(tile)) { Town *t = Object::GetByTile(tile)->town; ClrBit(t->statues, old_owner); if (new_owner != INVALID_OWNER && !HasBit(t->statues, new_owner)) { /* Transfer ownership to the new company */ SetBit(t->statues, new_owner); SetTileOwner(tile, new_owner); } else { ReallyClearObjectTile(Object::GetByTile(tile)); } SetWindowDirty(WC_TOWN_AUTHORITY, t->index); } else { ReallyClearObjectTile(Object::GetByTile(tile)); } } static CommandCost TerraformTile_Object(TileIndex tile, DoCommandFlag flags, int z_new, Slope tileh_new) { ObjectType type = GetObjectType(tile); if (type == OBJECT_OWNED_LAND) { /* Owned land remains unsold */ CommandCost ret = CheckTileOwnership(tile); if (ret.Succeeded()) return CommandCost(); } else if (AutoslopeEnabled() && type != OBJECT_TRANSMITTER && type != OBJECT_LIGHTHOUSE) { /* Behaviour: * - Both new and old slope must not be steep. * - TileMaxZ must not be changed. * - Allow autoslope by default. * - Disallow autoslope if callback succeeds and returns non-zero. */ Slope tileh_old = GetTileSlope(tile); /* TileMaxZ must not be changed. Slopes must not be steep. */ if (!IsSteepSlope(tileh_old) && !IsSteepSlope(tileh_new) && (GetTileMaxZ(tile) == z_new + GetSlopeMaxZ(tileh_new))) { const ObjectSpec *spec = ObjectSpec::Get(type); /* Call callback 'disable autosloping for objects'. */ if (HasBit(spec->callback_mask, CBM_OBJ_AUTOSLOPE)) { /* If the callback fails, allow autoslope. */ uint16 res = GetObjectCallback(CBID_OBJECT_AUTOSLOPE, 0, 0, spec, Object::GetByTile(tile), tile); if (res == CALLBACK_FAILED || !ConvertBooleanCallback(spec->grf_prop.grffile, CBID_OBJECT_AUTOSLOPE, res)) return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]); } else if (spec->enabled) { /* allow autoslope */ return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]); } } } return DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR); } extern const TileTypeProcs _tile_type_object_procs = { DrawTile_Object, // draw_tile_proc GetSlopePixelZ_Object, // get_slope_z_proc ClearTile_Object, // clear_tile_proc AddAcceptedCargo_Object, // add_accepted_cargo_proc GetTileDesc_Object, // get_tile_desc_proc GetTileTrackStatus_Object, // get_tile_track_status_proc ClickTile_Object, // click_tile_proc AnimateTile_Object, // animate_tile_proc TileLoop_Object, // tile_loop_proc ChangeTileOwner_Object, // change_tile_owner_proc NULL, // add_produced_cargo_proc NULL, // vehicle_enter_tile_proc GetFoundation_Object, // get_foundation_proc TerraformTile_Object, // terraform_tile_proc };