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/*
This file is part of Advanced Strategic Command; http://www.asc-hq.org
Copyright (C) 1994-2010 Martin Bickel
This program 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; either version 2 of the License, or
(at your option) any later version.
This program 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 this program; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 59 Temple Place, Suite 330,
Boston, MA 02111-1307 USA
*/
#include "taskcontainer.h"
#include "../gamemap.h"
#include "../actions/command.h"
#include "../actions/taskinterface.h"
static const int yetAnotherTask = 0xbd14cff9;
static const int noOtherTasks = 0x339fbb40;
TaskContainer::TaskContainer( GameMap* gamemap )
{
this->gamemap = gamemap;
gamemap->sigPlayerTurnHasEnded.connect( sigc::mem_fun( *this, &TaskContainer::endTurn ));
gamemap->sigPlayerTurnBegins.connect( sigc::mem_fun( *this, &TaskContainer::startTurn ));
}
TaskContainer::~TaskContainer()
{
for ( CommandContainer::iterator i = pendingCommands.begin(); i != pendingCommands.end(); ++i )
delete *i;
}
void TaskContainer::hook( GameMap& gamemap )
{
gamemap.tasks = new TaskContainer( &gamemap );
}
void TaskContainer::registerHooks()
{
GameMap::sigMapCreation.connect( sigc::ptr_fun( &TaskContainer::hook ));
ActionContainer::commitCommand.connect( sigc::ptr_fun( &TaskContainer::getCommand ));
}
void TaskContainer::endTurn( Player& player )
{
for ( CommandContainer::iterator i = pendingCommands.begin(); i != pendingCommands.end(); ++i )
delete *i;
pendingCommands.clear();
}
void TaskContainer::startTurn( Player& player )
{
if ( lastPlayer >= 0 ) {
/* a player's tasks are submitted at the beginning of the next player's turn,
to avoid any timing problems which could cause a task submit happening
before the actions are transferred */
{
MemoryStream memstream( newTasks, tnstream::appending );
memstream.writeInt( noOtherTasks );
}
delete playerTasks[lastPlayer];
playerTasks[lastPlayer] = newTasks;
newTasks = NULL;
lastPlayer = -1;
}
int p = player.getPosition();
if ( playerTasks[p] ) {
pendingCommands.clear();
MemoryStream stream ( playerTasks[p], tnstream::reading );
int token = stream.readInt();
while ( token == yetAnotherTask ) {
Command* cmd = dynamic_cast<Command*>( GameAction::readFromStream( stream, gamemap ) );
assertOrThrow( cmd != NULL );
TaskInterface* ti = dynamic_cast<TaskInterface*>( cmd );
if ( !ti )
fatalError( "Found a task that does not implement the TaskInterface");
ti->rearm();
pendingCommands.push_back( cmd );
token = stream.readInt();
}
}
delete playerTasks[p];
playerTasks[p] = NULL;
}
void TaskContainer::store( const Command& command )
{
if ( command.getState() == Command::Run ) {
const TaskInterface* ti = dynamic_cast<const TaskInterface*>( &command );
if ( ti ) {
if ( newTasks == NULL )
newTasks = new MemoryStreamStorage();
MemoryStream memstream( newTasks, tnstream::appending );
memstream.writeInt( yetAnotherTask );
command.write( memstream, false);
lastPlayer = gamemap->actplayer;
}
}
}
void TaskContainer::remove( Command* cmd )
{
CommandContainer::iterator i = find ( pendingCommands.begin(), pendingCommands.end(), cmd );
if ( i != pendingCommands.end() )
pendingCommands.erase( i );
}
void TaskContainer::getCommand( GameMap* gamemap, Command& command )
{
if ( gamemap->tasks ) {
TaskContainer* t = dynamic_cast<TaskContainer*>(gamemap->tasks);
t->store( command );
}
}
void TaskContainer::write ( tnstream& stream ) const
{
writeStorage( stream );
stream.writeInt( pendingCommands.size() );
for ( CommandContainer::const_iterator i = pendingCommands.begin(); i != pendingCommands.end(); ++i )
(*i)->write( stream );
stream.writeInt( taskMagic );
}
void TaskContainer::read ( tnstream& stream )
{
readStorage( stream );
pendingCommands.clear();
int count = stream.readInt();
for ( int i = 0; i < count; ++i )
pendingCommands.push_back( dynamic_cast<Command*>( GameAction::readFromStream( stream, gamemap )));
int magic = stream.readInt();
if ( magic != taskMagic )
throw new tinvalidversion( stream.getLocation(), taskMagic, magic );
}
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