settings_table.cpp

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/*
 * 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/>.
 */
 
#include "stdafx.h"
#include "settings_table.h"
#include "currency.h"
#include "screenshot.h"
#include "network/network.h"
#include "network/network_func.h"
#include "network/core/config.h"
#include "pathfinder/pathfinder_type.h"
#include "genworld.h"
#include "train.h"
#include "news_func.h"
#include "window_func.h"
#include "company_func.h"
#if defined(WITH_FREETYPE) || defined(_WIN32) || defined(WITH_COCOA)
#define HAS_TRUETYPE_FONT
#include "fontcache.h"
#endif
#include "textbuf_gui.h"
#include "rail_gui.h"
#include "elrail_func.h"
#include "error.h"
#include "town.h"
#include "video/video_driver.hpp"
#include "sound/sound_driver.hpp"
#include "music/music_driver.hpp"
#include "blitter/factory.hpp"
#include "base_media_base.h"
#include "ai/ai_config.hpp"
#include "ai/ai.hpp"
#include "game/game_config.hpp"
#include "ship.h"
#include "smallmap_gui.h"
#include "roadveh.h"
#include "vehicle_func.h"
#include "void_map.h"
 
#include "table/strings.h"
#include "table/settings.h"
 
#include "safeguards.h"
 
SettingTable _company_settings{ _company_settings_table };
SettingTable _currency_settings{ _currency_settings_table };
SettingTable _difficulty_settings{ _difficulty_settings_table };
SettingTable _multimedia_settings{ _multimedia_settings_table };
SettingTable _economy_settings{ _economy_settings_table };
SettingTable _game_settings{ _game_settings_table };
SettingTable _gui_settings{ _gui_settings_table };
SettingTable _linkgraph_settings{ _linkgraph_settings_table };
SettingTable _locale_settings{ _locale_settings_table };
SettingTable _misc_settings{ _misc_settings_table };
SettingTable _network_private_settings{ _network_private_settings_table };
SettingTable _network_secrets_settings{ _network_secrets_settings_table };
SettingTable _network_settings{ _network_settings_table };
SettingTable _news_display_settings{ _news_display_settings_table };
SettingTable _old_gameopt_settings{ _old_gameopt_settings_table };
SettingTable _pathfinding_settings{ _pathfinding_settings_table };
SettingTable _script_settings{ _script_settings_table };
SettingTable _window_settings{ _window_settings_table };
SettingTable _world_settings{ _world_settings_table };
#if defined(_WIN32) && !defined(DEDICATED)
SettingTable _win32_settings{ _win32_settings_table };
#endif /* _WIN32 */
 
 
/* Begin - Callback Functions for the various settings. */
 
static void v_PositionMainToolbar(int32 new_value)
{
  if (_game_mode != GM_MENU) PositionMainToolbar(nullptr);
}
 
static void v_PositionStatusbar(int32 new_value)
{
  if (_game_mode != GM_MENU) {
    PositionStatusbar(nullptr);
    PositionNewsMessage(nullptr);
    PositionNetworkChatWindow(nullptr);
  }
}
 
static void RedrawSmallmap(int32 new_value)
{
  BuildLandLegend();
  BuildOwnerLegend();
  SetWindowClassesDirty(WC_SMALLMAP);
}
 
static void StationSpreadChanged(int32 p1)
{
  InvalidateWindowData(WC_SELECT_STATION, 0);
  InvalidateWindowData(WC_BUILD_STATION, 0);
}
 
static void UpdateConsists(int32 new_value)
{
  for (Train *t : Train::Iterate()) {
    /* Update the consist of all trains so the maximum speed is set correctly. */
    if (t->IsFrontEngine() || t->IsFreeWagon()) t->ConsistChanged(CCF_TRACK);
  }
  InvalidateWindowClassesData(WC_BUILD_VEHICLE, 0);
}
 
/* Check service intervals of vehicles, newvalue is value of % or day based servicing */
static void UpdateAllServiceInterval(int32 new_value)
{
  bool update_vehicles;
  VehicleDefaultSettings *vds;
  if (_game_mode == GM_MENU || !Company::IsValidID(_current_company)) {
    vds = &_settings_client.company.vehicle;
    update_vehicles = false;
  } else {
    vds = &Company::Get(_current_company)->settings.vehicle;
    update_vehicles = true;
  }
 
  if (new_value != 0) {
    vds->servint_trains   = 50;
    vds->servint_roadveh  = 50;
    vds->servint_aircraft = 50;
    vds->servint_ships    = 50;
  } else {
    vds->servint_trains   = 150;
    vds->servint_roadveh  = 150;
    vds->servint_aircraft = 100;
    vds->servint_ships    = 360;
  }
 
  if (update_vehicles) {
    const Company *c = Company::Get(_current_company);
    for (Vehicle *v : Vehicle::Iterate()) {
      if (v->owner == _current_company && v->IsPrimaryVehicle() && !v->ServiceIntervalIsCustom()) {
        v->SetServiceInterval(CompanyServiceInterval(c, v->type));
        v->SetServiceIntervalIsPercent(new_value != 0);
      }
    }
  }
 
  SetWindowClassesDirty(WC_VEHICLE_DETAILS);
}
 
static bool CanUpdateServiceInterval(VehicleType type, int32 &new_value)
{
  VehicleDefaultSettings *vds;
  if (_game_mode == GM_MENU || !Company::IsValidID(_current_company)) {
    vds = &_settings_client.company.vehicle;
  } else {
    vds = &Company::Get(_current_company)->settings.vehicle;
  }
 
  /* Test if the interval is valid */
  int32 interval = GetServiceIntervalClamped(new_value, vds->servint_ispercent);
  return interval == new_value;
}
 
static void UpdateServiceInterval(VehicleType type, int32 new_value)
{
  if (_game_mode != GM_MENU && Company::IsValidID(_current_company)) {
    for (Vehicle *v : Vehicle::Iterate()) {
      if (v->owner == _current_company && v->type == type && v->IsPrimaryVehicle() && !v->ServiceIntervalIsCustom()) {
        v->SetServiceInterval(new_value);
      }
    }
  }
 
  SetWindowClassesDirty(WC_VEHICLE_DETAILS);
}
 
static void TrainAccelerationModelChanged(int32 new_value)
{
  for (Train *t : Train::Iterate()) {
    if (t->IsFrontEngine()) {
      t->tcache.cached_max_curve_speed = t->GetCurveSpeedLimit();
      t->UpdateAcceleration();
    }
  }
 
  /* These windows show acceleration values only when realistic acceleration is on. They must be redrawn after a setting change. */
  SetWindowClassesDirty(WC_ENGINE_PREVIEW);
  InvalidateWindowClassesData(WC_BUILD_VEHICLE, 0);
  SetWindowClassesDirty(WC_VEHICLE_DETAILS);
}
 
static void TrainSlopeSteepnessChanged(int32 new_value)
{
  for (Train *t : Train::Iterate()) {
    if (t->IsFrontEngine()) t->CargoChanged();
  }
}
 
static void RoadVehAccelerationModelChanged(int32 new_value)
{
  if (_settings_game.vehicle.roadveh_acceleration_model != AM_ORIGINAL) {
    for (RoadVehicle *rv : RoadVehicle::Iterate()) {
      if (rv->IsFrontEngine()) {
        rv->CargoChanged();
      }
    }
  }
 
  /* These windows show acceleration values only when realistic acceleration is on. They must be redrawn after a setting change. */
  SetWindowClassesDirty(WC_ENGINE_PREVIEW);
  InvalidateWindowClassesData(WC_BUILD_VEHICLE, 0);
  SetWindowClassesDirty(WC_VEHICLE_DETAILS);
}
 
static void RoadVehSlopeSteepnessChanged(int32 new_value)
{
  for (RoadVehicle *rv : RoadVehicle::Iterate()) {
    if (rv->IsFrontEngine()) rv->CargoChanged();
  }
}
 
static void TownFoundingChanged(int32 new_value)
{
  if (_game_mode != GM_EDITOR && _settings_game.economy.found_town == TF_FORBIDDEN) {
    CloseWindowById(WC_FOUND_TOWN, 0);
  } else {
    InvalidateWindowData(WC_FOUND_TOWN, 0);
  }
}
 
static void ZoomMinMaxChanged(int32 new_value)
{
  extern void ConstrainAllViewportsZoom();
  ConstrainAllViewportsZoom();
  GfxClearSpriteCache();
  if (_settings_client.gui.zoom_min > _gui_zoom) {
    /* Restrict GUI zoom if it is no longer available. */
    _gui_zoom = _settings_client.gui.zoom_min;
    UpdateCursorSize();
    LoadStringWidthTable();
  }
}
 
static void SpriteZoomMinChanged(int32 new_value)
{
  GfxClearSpriteCache();
  /* Force all sprites to redraw at the new chosen zoom level */
  MarkWholeScreenDirty();
}
 
static void InvalidateNewGRFChangeWindows(int32 new_value)
{
  InvalidateWindowClassesData(WC_SAVELOAD);
  CloseWindowByClass(WC_GAME_OPTIONS);
  ReInitAllWindows(_gui_zoom_cfg);
}
 
static void InvalidateCompanyLiveryWindow(int32 new_value)
{
  InvalidateWindowClassesData(WC_COMPANY_COLOUR, -1);
  ResetVehicleColourMap();
}
 
static void DifficultyNoiseChange(int32 new_value)
{
  if (_game_mode == GM_NORMAL) {
    UpdateAirportsNoise();
    if (_settings_game.economy.station_noise_level) {
      InvalidateWindowClassesData(WC_TOWN_VIEW, 0);
    }
  }
}
 
static void MaxNoAIsChange(int32 new_value)
{
  if (GetGameSettings().difficulty.max_no_competitors != 0 &&
      AI::GetInfoList()->size() == 0 &&
      (!_networking || _network_server)) {
    ShowErrorMessage(STR_WARNING_NO_SUITABLE_AI, INVALID_STRING_ID, WL_CRITICAL);
  }
 
  InvalidateWindowClassesData(WC_GAME_OPTIONS, 0);
}
 
static bool CheckRoadSide(int32 &new_value)
{
  extern bool RoadVehiclesAreBuilt();
  return _game_mode == GM_MENU || !RoadVehiclesAreBuilt();
}
 
static size_t ConvertLandscape(const char *value)
{
  /* try with the old values */
  static std::vector<std::string> _old_landscape_values{"normal", "hilly", "desert", "candy"};
  return OneOfManySettingDesc::ParseSingleValue(value, strlen(value), _old_landscape_values);
}
 
static bool CheckFreeformEdges(int32 &new_value)
{
  if (_game_mode == GM_MENU) return true;
  if (new_value != 0) {
    for (Ship *s : Ship::Iterate()) {
      /* Check if there is a ship on the northern border. */
      if (TileX(s->tile) == 0 || TileY(s->tile) == 0) {
        ShowErrorMessage(STR_CONFIG_SETTING_EDGES_NOT_EMPTY, INVALID_STRING_ID, WL_ERROR);
        return false;
      }
    }
    for (const BaseStation *st : BaseStation::Iterate()) {
      /* Check if there is a non-deleted buoy on the northern border. */
      if (st->IsInUse() && (TileX(st->xy) == 0 || TileY(st->xy) == 0)) {
        ShowErrorMessage(STR_CONFIG_SETTING_EDGES_NOT_EMPTY, INVALID_STRING_ID, WL_ERROR);
        return false;
      }
    }
  } else {
    for (uint i = 0; i < MapMaxX(); i++) {
      if (TileHeight(TileXY(i, 1)) != 0) {
        ShowErrorMessage(STR_CONFIG_SETTING_EDGES_NOT_WATER, INVALID_STRING_ID, WL_ERROR);
        return false;
      }
    }
    for (uint i = 1; i < MapMaxX(); i++) {
      if (!IsTileType(TileXY(i, MapMaxY() - 1), MP_WATER) || TileHeight(TileXY(1, MapMaxY())) != 0) {
        ShowErrorMessage(STR_CONFIG_SETTING_EDGES_NOT_WATER, INVALID_STRING_ID, WL_ERROR);
        return false;
      }
    }
    for (uint i = 0; i < MapMaxY(); i++) {
      if (TileHeight(TileXY(1, i)) != 0) {
        ShowErrorMessage(STR_CONFIG_SETTING_EDGES_NOT_WATER, INVALID_STRING_ID, WL_ERROR);
        return false;
      }
    }
    for (uint i = 1; i < MapMaxY(); i++) {
      if (!IsTileType(TileXY(MapMaxX() - 1, i), MP_WATER) || TileHeight(TileXY(MapMaxX(), i)) != 0) {
        ShowErrorMessage(STR_CONFIG_SETTING_EDGES_NOT_WATER, INVALID_STRING_ID, WL_ERROR);
        return false;
      }
    }
  }
  return true;
}
 
static void UpdateFreeformEdges(int32 new_value)
{
  if (_game_mode == GM_MENU) return;
 
  if (new_value != 0) {
    for (uint x = 0; x < MapSizeX(); x++) MakeVoid(TileXY(x, 0));
    for (uint y = 0; y < MapSizeY(); y++) MakeVoid(TileXY(0, y));
  } else {
    /* Make tiles at the border water again. */
    for (uint i = 0; i < MapMaxX(); i++) {
      SetTileHeight(TileXY(i, 0), 0);
      SetTileType(TileXY(i, 0), MP_WATER);
    }
    for (uint i = 0; i < MapMaxY(); i++) {
      SetTileHeight(TileXY(0, i), 0);
      SetTileType(TileXY(0, i), MP_WATER);
    }
  }
  MarkWholeScreenDirty();
}
 
static bool CheckDynamicEngines(int32 &new_value)
{
  if (_game_mode == GM_MENU) return true;
 
  if (!EngineOverrideManager::ResetToCurrentNewGRFConfig()) {
    ShowErrorMessage(STR_CONFIG_SETTING_DYNAMIC_ENGINES_EXISTING_VEHICLES, INVALID_STRING_ID, WL_ERROR);
    return false;
  }
 
  return true;
}
 
static bool CheckMaxHeightLevel(int32 &new_value)
{
  if (_game_mode == GM_NORMAL) return false;
  if (_game_mode != GM_EDITOR) return true;
 
  /* Check if at least one mountain on the map is higher than the new value.
   * If yes, disallow the change. */
  for (TileIndex t = 0; t < MapSize(); t++) {
    if ((int32)TileHeight(t) > new_value) {
      ShowErrorMessage(STR_CONFIG_SETTING_TOO_HIGH_MOUNTAIN, INVALID_STRING_ID, WL_ERROR);
      /* Return old, unchanged value */
      return false;
    }
  }
 
  return true;
}
 
static void StationCatchmentChanged(int32 new_value)
{
  Station::RecomputeCatchmentForAll();
  MarkWholeScreenDirty();
}
 
static void MaxVehiclesChanged(int32 new_value)
{
  InvalidateWindowClassesData(WC_BUILD_TOOLBAR);
  MarkWholeScreenDirty();
}
 
static void InvalidateShipPathCache(int32 new_value)
{
  for (Ship *s : Ship::Iterate()) {
    s->path.clear();
  }
}
 
static bool ReplaceAsteriskWithEmptyPassword(std::string &newval)
{
  if (newval.compare("*") == 0) newval.clear();
  return true;
}
 
static void UpdateClientConfigValues()
{
  NetworkServerUpdateGameInfo();
  if (_network_server) NetworkServerSendConfigUpdate();
}
 
/* End - Callback Functions */