### - c -

- cache : FreeUnitIDGenerator
- cache_valid : VehicleCache
- cached_air_drag : AccelerationCache
- cached_anim_triggers : BaseStation
- cached_axle_resistance : AccelerationCache
- cached_max_curve_speed : TrainCache
- cached_max_rail_speed : TrainCache
- cached_max_speed : AircraftCache , TrainCache
- cached_max_te : AccelerationCache
- cached_power : AccelerationCache
- cached_slope_resistance : AccelerationCache
- cached_tilt : TrainCache
- cached_total_length : RoadVehicleCache , TrainCache
- cached_var40 : VehicleCache
- cached_var41 : VehicleCache
- cached_var42 : VehicleCache
- cached_var43 : VehicleCache
- cached_veh_length : RoadVehicleCache , TrainCache
- cached_vis_effect : TrainCache
- cached_weight : AccelerationCache
- callback : CommandContainer , SetDateWindow
- callback_mask : CargoSpec , EngineInfo , IndustrySpec , IndustryTileSpec
- callback_proc : FiosFileScanner
- callback_timer : BuildIndustryWindow
- callback_value : AIStorage
- cap : Scrollbar
- capacity : SmallVector< T, S > , CargoSummaryItem
- caption : QueryWindow
- cargo : StationViewWindow , CargoSummaryItem , RefitOption , RefitWindow
- cargo_days_in_transit : CargoList< Tinst >
- cargo_rows : StationViewWindow
- cargo_type : Subsidy
- catchment : AirportSpec
- category : PriceBaseSpec
- center : ViewportSign
- change : LoggedAction
- change_date : Cheats
- changes : LoggedAction
- chat_height : NewsWindow
- check_proc : IndustrySpec
- child : NWidgetBackground
- city : FoundTownWindow
- classes : CargoSpec
- cleaning : Pool< Titem, Tindex, Tgrowth_step, Tmax_size, Tcache, Tzero >
- cleanup_flag : IndustrySpec
- click_delay : DropdownWindow
- click_proc : RailBuildingGUIButtonData
- click_tile_proc : TileTypeProcs
- climate_availability : IndustrySpec
- closebox_dimension : NWidgetLeaf
- closure_text : IndustrySpec
- cls : WindowDesc
- cmd : CommandContainer , SaveLoad
- cmdline : IConsoleAlias
- col_break : LegendAndColour
- colour : IConsoleLine , CompanyNewsInformation , LegendAndColour , NWidgetPartWidget , NWidgetCore
- coloured_news_year : GUISettings
- column_width : SmallMapWindow
- combine_sprites : ViewportDrawer
- comment : IniItem , IniGroup , IniFile
- company : ClientSettings
- company_name : CompanyNewsInformation
- comparison_done : ParentSpriteToDraw
- compatible_railtypes : RailtypeInfo
- competitor_speed : DifficultySettings
- conflicting : IndustrySpec
- console_backlog_length : GUISettings
- console_backlog_timeout : GUISettings
- construction : GameSettings
- construction_cost : DifficultySettings
- construction_date : Industry
- construction_type : Industry
- cont_flags : NWidgetPart
- conv : SaveLoad
- convert : RailtypeInfo
- convert_rail : RailtypeInfo
- cost : CommandCost
- cost_multiplier : IndustrySpec , RailtypeInfo
- costs : AIStorage
- count : CargoList< Tinst > , ReusableBuffer< T > , BuildIndustryWindow , CargoPacket , BuildTreesWindow , AILog::LogData , Scrollbar
- counter : Industry
- crashdump_filename : CrashLogWindows
- crashlog : CrashLogWindows
- crashlog_filename : CrashLogWindows
- criteria : Filtering , Listing
- crossing : RailtypeInfo
- crossing_tunnels : Cheats
- ct : LoggedChange , CargoPayment
- curid : FreeUnitIDGenerator
- curr : DynamicLanguages
- curr_file : DynamicLanguages
- currency : LocaleSettings
- current : CrashLogWindows
- current_char : Lexer
- current_station : CargoPayment
- current_x : NWidgetBase
- current_y : NWidgetBase
- cursor_autoroad : RoadTypeInfo
- cursor_nesw : RoadTypeInfo
- cursor_nwse : RoadTypeInfo
- curve_speed : RailtypeInfo
- custom_ground_offset : RailtypeInfo
- custom_message : GRFError
- custom_town_number : GameCreationSettings
- cycle_signal_types : GUISettings