483 lines
20 KiB
C++
483 lines
20 KiB
C++
/*
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* This file is part of OpenTTD.
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* 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.
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* 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.
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* 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/>.
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*/
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/** @file command_type.h Types related to commands. */
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#ifndef COMMAND_TYPE_H
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#define COMMAND_TYPE_H
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#include "economy_type.h"
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#include "strings_type.h"
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#include "tile_type.h"
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#include <vector>
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struct GRFFile;
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/**
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* Common return value for all commands. Wraps the cost and
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* a possible error message/state together.
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*/
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class CommandCost {
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ExpensesType expense_type; ///< the type of expence as shown on the finances view
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Money cost; ///< The cost of this action
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StringID message; ///< Warning message for when success is unset
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bool success; ///< Whether the command went fine up to this moment
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const GRFFile *textref_stack_grffile; ///< NewGRF providing the #TextRefStack content.
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uint textref_stack_size; ///< Number of uint32 values to put on the #TextRefStack for the error message.
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static uint32 textref_stack[16];
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public:
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/**
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* Creates a command cost return with no cost and no error
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*/
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CommandCost() : expense_type(INVALID_EXPENSES), cost(0), message(INVALID_STRING_ID), success(true), textref_stack_grffile(nullptr), textref_stack_size(0) {}
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/**
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* Creates a command return value the is failed with the given message
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*/
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explicit CommandCost(StringID msg) : expense_type(INVALID_EXPENSES), cost(0), message(msg), success(false), textref_stack_grffile(nullptr), textref_stack_size(0) {}
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/**
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* Creates a command cost with given expense type and start cost of 0
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* @param ex_t the expense type
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*/
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explicit CommandCost(ExpensesType ex_t) : expense_type(ex_t), cost(0), message(INVALID_STRING_ID), success(true), textref_stack_grffile(nullptr), textref_stack_size(0) {}
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/**
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* Creates a command return value with the given start cost and expense type
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* @param ex_t the expense type
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* @param cst the initial cost of this command
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*/
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CommandCost(ExpensesType ex_t, const Money &cst) : expense_type(ex_t), cost(cst), message(INVALID_STRING_ID), success(true), textref_stack_grffile(nullptr), textref_stack_size(0) {}
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/**
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* Adds the given cost to the cost of the command.
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* @param cost the cost to add
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*/
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inline void AddCost(const Money &cost)
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{
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this->cost += cost;
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}
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void AddCost(const CommandCost &cmd_cost);
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/**
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* Multiplies the cost of the command by the given factor.
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* @param factor factor to multiply the costs with
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*/
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inline void MultiplyCost(int factor)
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{
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this->cost *= factor;
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}
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/**
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* The costs as made up to this moment
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* @return the costs
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*/
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inline Money GetCost() const
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{
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return this->cost;
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}
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/**
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* The expense type of the cost
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* @return the expense type
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*/
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inline ExpensesType GetExpensesType() const
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{
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return this->expense_type;
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}
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/**
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* Makes this #CommandCost behave like an error command.
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* @param message The error message.
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*/
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void MakeError(StringID message)
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{
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assert(message != INVALID_STRING_ID);
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this->success = false;
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this->message = message;
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}
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void UseTextRefStack(const GRFFile *grffile, uint num_registers);
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/**
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* Returns the NewGRF providing the #TextRefStack of the error message.
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* @return the NewGRF.
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*/
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const GRFFile *GetTextRefStackGRF() const
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{
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return this->textref_stack_grffile;
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}
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/**
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* Returns the number of uint32 values for the #TextRefStack of the error message.
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* @return number of uint32 values.
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*/
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uint GetTextRefStackSize() const
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{
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return this->textref_stack_size;
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}
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/**
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* Returns a pointer to the values for the #TextRefStack of the error message.
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* @return uint32 values for the #TextRefStack
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*/
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const uint32 *GetTextRefStack() const
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{
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return textref_stack;
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}
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/**
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* Returns the error message of a command
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* @return the error message, if succeeded #INVALID_STRING_ID
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*/
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StringID GetErrorMessage() const
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{
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if (this->success) return INVALID_STRING_ID;
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return this->message;
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}
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/**
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* Did this command succeed?
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* @return true if and only if it succeeded
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*/
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inline bool Succeeded() const
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{
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return this->success;
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}
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/**
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* Did this command fail?
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* @return true if and only if it failed
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*/
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inline bool Failed() const
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{
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return !this->success;
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}
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};
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/**
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* List of commands.
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*
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* This enum defines all possible commands which can be executed to the game
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* engine. Observing the game like the query-tool or checking the profit of a
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* vehicle don't result in a command which should be executed in the engine
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* nor send to the server in a network game.
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*
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* @see _command_proc_table
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*/
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enum Commands : uint16 {
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CMD_BUILD_RAILROAD_TRACK, ///< build a rail track
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CMD_REMOVE_RAILROAD_TRACK, ///< remove a rail track
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CMD_BUILD_SINGLE_RAIL, ///< build a single rail track
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CMD_REMOVE_SINGLE_RAIL, ///< remove a single rail track
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CMD_LANDSCAPE_CLEAR, ///< demolish a tile
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CMD_BUILD_BRIDGE, ///< build a bridge
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CMD_BUILD_RAIL_STATION, ///< build a rail station
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CMD_BUILD_TRAIN_DEPOT, ///< build a train depot
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CMD_BUILD_SIGNALS, ///< build a signal
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CMD_REMOVE_SIGNALS, ///< remove a signal
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CMD_TERRAFORM_LAND, ///< terraform a tile
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CMD_BUILD_OBJECT, ///< build an object
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CMD_BUILD_OBJECT_AREA, ///< build an area of objects
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CMD_BUILD_TUNNEL, ///< build a tunnel
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CMD_REMOVE_FROM_RAIL_STATION, ///< remove a (rectangle of) tiles from a rail station
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CMD_CONVERT_RAIL, ///< convert a rail type
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CMD_BUILD_RAIL_WAYPOINT, ///< build a waypoint
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CMD_RENAME_WAYPOINT, ///< rename a waypoint
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CMD_REMOVE_FROM_RAIL_WAYPOINT, ///< remove a (rectangle of) tiles from a rail waypoint
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CMD_BUILD_ROAD_STOP, ///< build a road stop
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CMD_REMOVE_ROAD_STOP, ///< remove a road stop
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CMD_BUILD_LONG_ROAD, ///< build a complete road (not a "half" one)
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CMD_REMOVE_LONG_ROAD, ///< remove a complete road (not a "half" one)
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CMD_BUILD_ROAD, ///< build a "half" road
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CMD_BUILD_ROAD_DEPOT, ///< build a road depot
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CMD_CONVERT_ROAD, ///< convert a road type
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CMD_BUILD_AIRPORT, ///< build an airport
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CMD_BUILD_DOCK, ///< build a dock
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CMD_BUILD_SHIP_DEPOT, ///< build a ship depot
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CMD_BUILD_BUOY, ///< build a buoy
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CMD_PLANT_TREE, ///< plant a tree
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CMD_BUILD_VEHICLE, ///< build a vehicle
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CMD_SELL_VEHICLE, ///< sell a vehicle
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CMD_REFIT_VEHICLE, ///< refit the cargo space of a vehicle
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CMD_SEND_VEHICLE_TO_DEPOT, ///< send a vehicle to a depot
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CMD_SET_VEHICLE_VISIBILITY, ///< hide or unhide a vehicle in the build vehicle and autoreplace GUIs
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CMD_MOVE_RAIL_VEHICLE, ///< move a rail vehicle (in the depot)
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CMD_FORCE_TRAIN_PROCEED, ///< proceed a train to pass a red signal
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CMD_REVERSE_TRAIN_DIRECTION, ///< turn a train around
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CMD_CLEAR_ORDER_BACKUP, ///< clear the order backup of a given user/tile
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CMD_MODIFY_ORDER, ///< modify an order (like set full-load)
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CMD_SKIP_TO_ORDER, ///< skip an order to the next of specific one
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CMD_DELETE_ORDER, ///< delete an order
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CMD_INSERT_ORDER, ///< insert a new order
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CMD_CHANGE_SERVICE_INT, ///< change the server interval of a vehicle
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CMD_BUILD_INDUSTRY, ///< build a new industry
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CMD_INDUSTRY_CTRL, ///< change industry properties
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CMD_SET_COMPANY_MANAGER_FACE, ///< set the manager's face of the company
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CMD_SET_COMPANY_COLOUR, ///< set the colour of the company
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CMD_INCREASE_LOAN, ///< increase the loan from the bank
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CMD_DECREASE_LOAN, ///< decrease the loan from the bank
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CMD_WANT_ENGINE_PREVIEW, ///< confirm the preview of an engine
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CMD_ENGINE_CTRL, ///< control availability of the engine for companies
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CMD_RENAME_VEHICLE, ///< rename a whole vehicle
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CMD_RENAME_ENGINE, ///< rename a engine (in the engine list)
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CMD_RENAME_COMPANY, ///< change the company name
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CMD_RENAME_PRESIDENT, ///< change the president name
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CMD_RENAME_STATION, ///< rename a station
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CMD_RENAME_DEPOT, ///< rename a depot
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CMD_PLACE_SIGN, ///< place a sign
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CMD_RENAME_SIGN, ///< rename a sign
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CMD_TURN_ROADVEH, ///< turn a road vehicle around
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CMD_PAUSE, ///< pause the game
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CMD_BUY_SHARE_IN_COMPANY, ///< buy a share from a company
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CMD_SELL_SHARE_IN_COMPANY, ///< sell a share from a company
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CMD_BUY_COMPANY, ///< buy a company which is bankrupt
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CMD_FOUND_TOWN, ///< found a town
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CMD_RENAME_TOWN, ///< rename a town
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CMD_DO_TOWN_ACTION, ///< do a action from the town detail window (like advertises or bribe)
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CMD_TOWN_CARGO_GOAL, ///< set the goal of a cargo for a town
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CMD_TOWN_GROWTH_RATE, ///< set the town growth rate
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CMD_TOWN_RATING, ///< set rating of a company in a town
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CMD_TOWN_SET_TEXT, ///< set the custom text of a town
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CMD_EXPAND_TOWN, ///< expand a town
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CMD_DELETE_TOWN, ///< delete a town
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CMD_ORDER_REFIT, ///< change the refit information of an order (for "goto depot" )
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CMD_CLONE_ORDER, ///< clone (and share) an order
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CMD_CLEAR_AREA, ///< clear an area
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CMD_MONEY_CHEAT, ///< do the money cheat
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CMD_CHANGE_BANK_BALANCE, ///< change bank balance to charge costs or give money from a GS
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CMD_BUILD_CANAL, ///< build a canal
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CMD_CREATE_SUBSIDY, ///< create a new subsidy
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CMD_COMPANY_CTRL, ///< used in multiplayer to create a new companies etc.
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CMD_CUSTOM_NEWS_ITEM, ///< create a custom news message
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CMD_CREATE_GOAL, ///< create a new goal
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CMD_REMOVE_GOAL, ///< remove a goal
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CMD_SET_GOAL_TEXT, ///< update goal text of a goal
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CMD_SET_GOAL_PROGRESS, ///< update goal progress text of a goal
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CMD_SET_GOAL_COMPLETED, ///< update goal completed status of a goal
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CMD_GOAL_QUESTION, ///< ask a goal related question
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CMD_GOAL_QUESTION_ANSWER, ///< answer(s) to CMD_GOAL_QUESTION
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CMD_CREATE_STORY_PAGE, ///< create a new story page
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CMD_CREATE_STORY_PAGE_ELEMENT, ///< create a new story page element
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CMD_UPDATE_STORY_PAGE_ELEMENT, ///< update a story page element
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CMD_SET_STORY_PAGE_TITLE, ///< update title of a story page
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CMD_SET_STORY_PAGE_DATE, ///< update date of a story page
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CMD_SHOW_STORY_PAGE, ///< show a story page
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CMD_REMOVE_STORY_PAGE, ///< remove a story page
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CMD_REMOVE_STORY_PAGE_ELEMENT, ///< remove a story page element
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CMD_SCROLL_VIEWPORT, ///< scroll main viewport of players
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CMD_STORY_PAGE_BUTTON, ///< selection via story page button
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CMD_LEVEL_LAND, ///< level land
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CMD_BUILD_LOCK, ///< build a lock
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CMD_BUILD_SIGNAL_TRACK, ///< add signals along a track (by dragging)
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CMD_REMOVE_SIGNAL_TRACK, ///< remove signals along a track (by dragging)
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CMD_GIVE_MONEY, ///< give money to another company
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CMD_CHANGE_SETTING, ///< change a setting
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CMD_CHANGE_COMPANY_SETTING, ///< change a company setting
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CMD_SET_AUTOREPLACE, ///< set an autoreplace entry
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CMD_CLONE_VEHICLE, ///< clone a vehicle
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CMD_START_STOP_VEHICLE, ///< start or stop a vehicle
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CMD_MASS_START_STOP, ///< start/stop all vehicles (in a depot)
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CMD_AUTOREPLACE_VEHICLE, ///< replace/renew a vehicle while it is in a depot
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CMD_DEPOT_SELL_ALL_VEHICLES, ///< sell all vehicles which are in a given depot
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CMD_DEPOT_MASS_AUTOREPLACE, ///< force the autoreplace to take action in a given depot
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CMD_CREATE_GROUP, ///< create a new group
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CMD_DELETE_GROUP, ///< delete a group
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CMD_ALTER_GROUP, ///< alter a group
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CMD_ADD_VEHICLE_GROUP, ///< add a vehicle to a group
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CMD_ADD_SHARED_VEHICLE_GROUP, ///< add all other shared vehicles to a group which are missing
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CMD_REMOVE_ALL_VEHICLES_GROUP, ///< remove all vehicles from a group
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CMD_SET_GROUP_FLAG, ///< set/clear a flag for a group
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CMD_SET_GROUP_LIVERY, ///< set the livery for a group
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CMD_MOVE_ORDER, ///< move an order
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CMD_CHANGE_TIMETABLE, ///< change the timetable for a vehicle
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CMD_BULK_CHANGE_TIMETABLE, ///< change the timetable for all orders of a vehicle
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CMD_SET_VEHICLE_ON_TIME, ///< set the vehicle on time feature (timetable)
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CMD_AUTOFILL_TIMETABLE, ///< autofill the timetable
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CMD_SET_TIMETABLE_START, ///< set the date that a timetable should start
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CMD_OPEN_CLOSE_AIRPORT, ///< open/close an airport to incoming aircraft
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CMD_CREATE_LEAGUE_TABLE, ///< create a new league table
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CMD_CREATE_LEAGUE_TABLE_ELEMENT, ///< create a new element in a league table
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CMD_UPDATE_LEAGUE_TABLE_ELEMENT_DATA, ///< update the data fields of a league table element
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CMD_UPDATE_LEAGUE_TABLE_ELEMENT_SCORE, ///< update the score of a league table element
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CMD_REMOVE_LEAGUE_TABLE_ELEMENT, ///< remove a league table element
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CMD_END, ///< Must ALWAYS be on the end of this list!! (period)
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};
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/**
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* List of flags for a command.
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*
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* This enums defines some flags which can be used for the commands.
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*/
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enum DoCommandFlag {
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DC_NONE = 0x000, ///< no flag is set
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DC_EXEC = 0x001, ///< execute the given command
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DC_AUTO = 0x002, ///< don't allow building on structures
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DC_QUERY_COST = 0x004, ///< query cost only, don't build.
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DC_NO_WATER = 0x008, ///< don't allow building on water
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// 0x010 is unused
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DC_NO_TEST_TOWN_RATING = 0x020, ///< town rating does not disallow you from building
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DC_BANKRUPT = 0x040, ///< company bankrupts, skip money check, skip vehicle on tile check in some cases
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DC_AUTOREPLACE = 0x080, ///< autoreplace/autorenew is in progress, this shall disable vehicle limits when building, and ignore certain restrictions when undoing things (like vehicle attach callback)
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DC_NO_CARGO_CAP_CHECK = 0x100, ///< when autoreplace/autorenew is in progress, this shall prevent truncating the amount of cargo in the vehicle to prevent testing the command to remove cargo
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DC_ALL_TILES = 0x200, ///< allow this command also on MP_VOID tiles
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DC_NO_MODIFY_TOWN_RATING = 0x400, ///< do not change town rating
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DC_FORCE_CLEAR_TILE = 0x800, ///< do not only remove the object on the tile, but also clear any water left on it
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};
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DECLARE_ENUM_AS_BIT_SET(DoCommandFlag)
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/**
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* Command flags for the command table _command_proc_table.
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*
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* This enumeration defines flags for the _command_proc_table.
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*/
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enum CommandFlags {
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CMD_SERVER = 0x001, ///< the command can only be initiated by the server
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CMD_SPECTATOR = 0x002, ///< the command may be initiated by a spectator
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CMD_OFFLINE = 0x004, ///< the command cannot be executed in a multiplayer game; single-player only
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CMD_AUTO = 0x008, ///< set the DC_AUTO flag on this command
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CMD_ALL_TILES = 0x010, ///< allow this command also on MP_VOID tiles
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CMD_NO_TEST = 0x020, ///< the command's output may differ between test and execute due to town rating changes etc.
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CMD_NO_WATER = 0x040, ///< set the DC_NO_WATER flag on this command
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CMD_CLIENT_ID = 0x080, ///< set p2 with the ClientID of the sending client.
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CMD_DEITY = 0x100, ///< the command may be executed by COMPANY_DEITY
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CMD_STR_CTRL = 0x200, ///< the command's string may contain control strings
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CMD_NO_EST = 0x400, ///< the command is never estimated.
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};
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DECLARE_ENUM_AS_BIT_SET(CommandFlags)
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/** Types of commands we have. */
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enum CommandType {
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CMDT_LANDSCAPE_CONSTRUCTION, ///< Construction and destruction of objects on the map.
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CMDT_VEHICLE_CONSTRUCTION, ///< Construction, modification (incl. refit) and destruction of vehicles.
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CMDT_MONEY_MANAGEMENT, ///< Management of money, i.e. loans and shares.
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CMDT_VEHICLE_MANAGEMENT, ///< Stopping, starting, sending to depot, turning around, replace orders etc.
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CMDT_ROUTE_MANAGEMENT, ///< Modifications to route management (orders, groups, etc).
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CMDT_OTHER_MANAGEMENT, ///< Renaming stuff, changing company colours, placing signs, etc.
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CMDT_COMPANY_SETTING, ///< Changing settings related to a company.
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CMDT_SERVER_SETTING, ///< Pausing/removing companies/server settings.
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CMDT_CHEAT, ///< A cheat of some sorts.
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CMDT_END, ///< Magic end marker.
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};
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/** Different command pause levels. */
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enum CommandPauseLevel {
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CMDPL_NO_ACTIONS, ///< No user actions may be executed.
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CMDPL_NO_CONSTRUCTION, ///< No construction actions may be executed.
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CMDPL_NO_LANDSCAPING, ///< No landscaping actions may be executed.
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CMDPL_ALL_ACTIONS, ///< All actions may be executed.
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};
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template <typename T> struct CommandFunctionTraitHelper;
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template <typename... Targs>
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struct CommandFunctionTraitHelper<CommandCost(*)(DoCommandFlag, Targs...)> {
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using Args = std::tuple<std::decay_t<Targs>...>;
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using RetTypes = void;
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using CbArgs = Args;
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using CbProcType = void(*)(Commands, const CommandCost &);
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};
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template <template <typename...> typename Tret, typename... Tretargs, typename... Targs>
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struct CommandFunctionTraitHelper<Tret<CommandCost, Tretargs...>(*)(DoCommandFlag, Targs...)> {
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using Args = std::tuple<std::decay_t<Targs>...>;
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using RetTypes = std::tuple<std::decay_t<Tretargs>...>;
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using CbArgs = std::tuple<std::decay_t<Tretargs>..., std::decay_t<Targs>...>;
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using CbProcType = void(*)(Commands, const CommandCost &, Tretargs...);
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};
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/** Defines the traits of a command. */
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template <Commands Tcmd> struct CommandTraits;
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#define DEF_CMD_TRAIT(cmd_, proc_, flags_, type_) \
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template<> struct CommandTraits<cmd_> { \
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using ProcType = decltype(&proc_); \
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using Args = typename CommandFunctionTraitHelper<ProcType>::Args; \
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using RetTypes = typename CommandFunctionTraitHelper<ProcType>::RetTypes; \
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using CbArgs = typename CommandFunctionTraitHelper<ProcType>::CbArgs; \
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using RetCallbackProc = typename CommandFunctionTraitHelper<ProcType>::CbProcType; \
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static constexpr Commands cmd = cmd_; \
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static constexpr auto &proc = proc_; \
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static constexpr CommandFlags flags = (CommandFlags)(flags_); \
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static constexpr CommandType type = type_; \
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static inline constexpr const char *name = #proc_; \
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};
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/** Storage buffer for serialized command data. */
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typedef std::vector<byte> CommandDataBuffer;
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/**
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* Define a callback function for the client, after the command is finished.
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*
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* Functions of this type are called after the command is finished. The parameters
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* are from the #CommandProc callback type. The boolean parameter indicates if the
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* command succeeded or failed.
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*
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* @param cmd The command that was executed
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* @param result The result of the executed command
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* @param tile The tile of the command action
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* @see CommandProc
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*/
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typedef void CommandCallback(Commands cmd, const CommandCost &result, TileIndex tile);
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/**
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* Define a callback function for the client, after the command is finished.
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*
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* Functions of this type are called after the command is finished. The parameters
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* are from the #CommandProc callback type. The boolean parameter indicates if the
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* command succeeded or failed.
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*
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* @param cmd The command that was executed
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* @param result The result of the executed command
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* @param tile The tile of the command action
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* @param data Additional data of the command
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* @param result_data Additional returned data from the command
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* @see CommandProc
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*/
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typedef void CommandCallbackData(Commands cmd, const CommandCost &result, TileIndex tile, const CommandDataBuffer &data, CommandDataBuffer result_data);
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#endif /* COMMAND_TYPE_H */
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