bool DoCommandP(TileIndex tile, uint32 p1, uint32 p2, uint32 cmd, CommandCallback *callback = NULL, const char *text = NULL, bool my_cmd = true);

bool DoCommandP(const CommandContainer *container, bool my_cmd = true);

CommandCost DoCommandPInternal(TileIndex tile, uint32 p1, uint32 p2, uint32 cmd, CommandCallback *callback, const char *text, bool my_cmd, bool estimate_only);

void NetworkSendCommand(TileIndex tile, uint32 p1, uint32 p2, uint32 cmd, CommandCallback *callback, const char *text, CompanyID company);

extern Money _additional_cash_required;

bool IsValidCommand(uint32 cmd);

CommandFlags GetCommandFlags(uint32 cmd);

const char *GetCommandName(uint32 cmd);