BOOL DM::DiskMaster::SendCommand( DM_CMD_MSG_HEADER &cmd )
{
DMT_TRACE(" Send command: code %d, size %d\n", cmd.code, cmd.param_size);
assert(IsValidCommand(cmd.code));
BYTE *param = NULL;
if (sizeof(DM_CMD_MSG_HEADER) == io->Write(&cmd, sizeof(DM_CMD_MSG_HEADER))) {
if (!cmd.param_size) {
last_cmd = cmd.code;
return TRUE;
}
else ::Sleep(DM_SEND_COMMAND_DELAY);
param = &((BYTE *)&cmd)[sizeof(DM_CMD_MSG_HEADER)];
if (cmd.param_size == io->Write(param, cmd.param_size)) {
MSG_GET_COMMAND get_cmd;
WORD check_code = 0;
switch(cmd.code) {
case kCmdCheckReady:
if (sizeof(check_code) == io->Read(&check_code, sizeof(check_code))) {
assert(check_code == *(&((WORD *)&cmd)[2]));
last_cmd = cmd.code;
DMT_TRACE(" OK\n");
return TRUE;
}
break;
case kCmdBoardOff:
last_cmd = cmd.code;
return TRUE;
case kCmdBoardOn:
case kCmdSendOption:
case kCmdSendTask:
case kCmdSetSataSize:
case kCmdSetCopyOffset:
case kCmdCopyBlock:
case kCmdTestBlock:
case kCmdEraseBlock:
case kCmdReadLbaHdd1:
case kCmdReadLbaHdd2:
case kCmdWriteLbaHdd2:
if (sizeof(MSG_GET_COMMAND) == io->Read(&get_cmd, sizeof(MSG_GET_COMMAND))) {
assert(get_cmd.code == kMsgGetCommand);
assert(get_cmd.param == cmd.code);
last_cmd = cmd.code;
DMT_TRACE(" OK\n");
return TRUE;
}
break;
default :
DMT_TRACE(" ERROR\n");
return FALSE;
}
}
}
DMT_TRACE(" ERROR\n");
return FALSE;
}
/**
* Receives a command from the network.
* @param p the packet to read from.
* @param cp the struct to write the data to.
* @return an error message. When NULL there has been no error.
*/
const char *NetworkGameSocketHandler::ReceiveCommand(Packet *p, CommandPacket *cp)
{
cp->company = (CompanyID)p->Recv_uint8();
cp->cmd = p->Recv_uint32();
if (!IsValidCommand(cp->cmd)) return "invalid command";
if (GetCommandFlags(cp->cmd) & CMD_OFFLINE) return "offline only command";
if ((cp->cmd & CMD_FLAGS_MASK) != 0) return "invalid command flag";
cp->p1 = p->Recv_uint32();
cp->p2 = p->Recv_uint32();
cp->tile = p->Recv_uint32();
p->Recv_string(cp->text, lengthof(cp->text), (!_network_server && GetCommandFlags(cp->cmd) & CMD_STR_CTRL) != 0 ? SVS_ALLOW_CONTROL_CODE | SVS_REPLACE_WITH_QUESTION_MARK : SVS_REPLACE_WITH_QUESTION_MARK);
byte callback = p->Recv_uint8();
if (callback >= lengthof(_callback_table)) return "invalid callback";
cp->callback = _callback_table[callback];
return NULL;
}
/**
* Returns whether the command is allowed while the game is paused.
* @param cmd The command to check.
* @return True if the command is allowed while paused, false otherwise.
*/
bool IsCommandAllowedWhilePaused(uint32 cmd)
{
/* Lookup table for the command types that are allowed for a given pause level setting. */
static const int command_type_lookup[] = {
CMDPL_ALL_ACTIONS, ///< CMDT_LANDSCAPE_CONSTRUCTION
CMDPL_NO_LANDSCAPING, ///< CMDT_VEHICLE_CONSTRUCTION
CMDPL_NO_LANDSCAPING, ///< CMDT_MONEY_MANAGEMENT
CMDPL_NO_CONSTRUCTION, ///< CMDT_VEHICLE_MANAGEMENT
CMDPL_NO_CONSTRUCTION, ///< CMDT_ROUTE_MANAGEMENT
CMDPL_NO_CONSTRUCTION, ///< CMDT_OTHER_MANAGEMENT
CMDPL_NO_CONSTRUCTION, ///< CMDT_COMPANY_SETTING
CMDPL_NO_ACTIONS, ///< CMDT_SERVER_SETTING
CMDPL_NO_ACTIONS, ///< CMDT_CHEAT
};
assert_compile(lengthof(command_type_lookup) == CMDT_END);
assert(IsValidCommand(cmd));
return _game_mode == GM_EDITOR || command_type_lookup[_command_proc_table[cmd & CMD_ID_MASK].type] <= _settings_game.construction.command_pause_level;
}
/**
* Receives a command from the network.
* @param p the packet to read from.
* @param cp the struct to write the data to.
* @return an error message. When NULL there has been no error.
*/
const char *NetworkGameSocketHandler::ReceiveCommand(Packet *p, CommandPacket *cp)
{
cp->company = (CompanyID)p->Recv_uint8();
cp->cmd = p->Recv_uint32();
cp->p1 = p->Recv_uint32();
cp->p2 = p->Recv_uint32();
cp->tile = p->Recv_uint32();
p->Recv_string(cp->text, lengthof(cp->text));
byte callback = p->Recv_uint8();
if (!IsValidCommand(cp->cmd)) return "invalid command";
if (GetCommandFlags(cp->cmd) & CMD_OFFLINE) return "offline only command";
if ((cp->cmd & CMD_FLAGS_MASK) != 0) return "invalid command flag";
if (callback >= lengthof(_callback_table)) return "invalid callback";
cp->callback = _callback_table[callback];
return NULL;
}
/*!
* This function mask the parameter with CMD_ID_MASK and returns
* the flags which belongs to the given command.
*
* @param cmd The integer value of the command
* @return The flags for this command
*/
byte GetCommandFlags(uint32 cmd)
{
assert(IsValidCommand(cmd));
return _command_proc_table[cmd & CMD_ID_MASK].flags;
}
/*!
* This function mask the parameter with CMD_ID_MASK and returns
* the name which belongs to the given command.
*
* @param cmd The integer value of the command
* @return The name for this command
*/
const char *GetCommandName(uint32 cmd)
{
assert(IsValidCommand(cmd));
return _command_proc_table[cmd & CMD_ID_MASK].name;
}
