void StateManager::resetActiveState(void)
{
// Is there no currently active state to reset?
if(!mStack.empty())
{
// Retrieve the currently active state
IState* anState = mStack.back();
// Log the resetting of an active state
ILOG() << "StateManager::resetActiveState(" << anState->getID() << ")" << std::endl;
// Pause the currently active state
anState->pause();
// Call the ReInit method to Reset the currently active state
anState->reInit();
// Resume the currently active state
anState->resume();
// Don't keep pointers around we don't need anymore
anState = NULL;
}
else
{
// Quit the application with an error status response
if(NULL != mApp)
{
mApp->quit(StatusAppStackEmpty);
}
return;
}
}
void StateManager::removeActiveState(void)
{
// Is there no currently active state to drop?
if(!mStack.empty())
{
// Retrieve the currently active state
IState* anState = mStack.back();
// Log the removing of an active state
ILOG() << "StateManager::removeActiveState(" << anState->getID() << ")" << std::endl;
// Pause the currently active state
anState->pause();
// Deinitialize the currently active state before we pop it off the stack
anState->deInit();
// Pop the currently active state off the stack
mStack.pop_back();
// Move this state to our dropped stack
mDead.push_back(anState);
// Don't keep pointers around we don't need anymore
anState = NULL;
}
else
{
// Quit the application with an error status response
if(NULL != mApp)
{
mApp->quit(StatusAppStackEmpty);
}
return;
}
// Is there another state to activate? then call Resume to activate it
if(!mStack.empty())
{
// Has this state ever been initialized?
if(mStack.back()->isInitComplete())
{
// Resume the new active state
mStack.back()->resume();
}
else
{
// Initialize the new active state
mStack.back()->doInit();
}
}
else
{
// There are no states on the stack, exit the program
if(NULL != mApp)
{
mApp->quit(StatusAppOK);
}
}
}
void StateManager::setActiveState(Id theStateID)
{
std::vector<IState*>::iterator it;
// Find the state that matches theStateID
for(it=mStack.begin(); it < mStack.end(); it++)
{
// Does this state match theStateID? then activate it as the new
// currently active state
if((*it)->getID() == theStateID)
{
// Get a pointer to soon to be currently active state
IState* anState = *it;
// Log the setting of a previously active state as the current active state
ILOG() << "StateManager::setActiveState(" << anState->getID() << ")" << std::endl;
// Erase it from the list of previously active states
mStack.erase(it);
// Is there a state currently running? then Pause it
if(!mStack.empty())
{
// Pause the currently running state since we are changing the
// currently active state to the one specified by theStateID
mStack.back()->pause();
}
// Add the new active state
mStack.push_back(anState);
// Don't keep pointers we don't need around
anState = NULL;
// Has this state ever been initialized?
if(mStack.back()->isInitComplete())
{
// Resume the new active state
mStack.back()->resume();
}
else
{
// Initialize the new active state
mStack.back()->doInit();
}
// Exit our find loop
break;
} // if((*it)->getID() == theStateID)
} // for(it=mStack.begin(); it < mStack.end(); it++)
}
void StateManager::dropActiveState(void)
{
// Is there no currently active state to drop?
if(!mStack.empty())
{
// Retrieve the currently active state
IState* anState = mStack.back();
// Log the dropping of an active state
ILOG() << "StateManager::dropActiveState(" << anState->getID() << ")" << std::endl;
// Pause the currently active state
anState->pause();
// Deinit currently active state before we pop it off the stack
// (handleCleanup() will be called by IState::doInit() method if this
// state is ever set active again)
anState->deInit();
// Pop the currently active state off the stack
mStack.pop_back();
// Move this now inactive state to the absolute back of our stack
mStack.insert(mStack.begin(), anState);
// Don't keep pointers around we don't need anymore
anState = NULL;
}
else
{
// Quit the application with an error status response
if(NULL != mApp)
{
mApp->quit(StatusAppStackEmpty);
}
return;
}
// Is there another state to activate? then call Resume to activate it
if(!mStack.empty())
{
// Has this state ever been initialized?
if(mStack.back()->isInitComplete())
{
// Resume the new active state
mStack.back()->resume();
}
else
{
// Initialize the new active state
mStack.back()->doInit();
}
}
else
{
// There are no states on the stack, exit the program
if(NULL != mApp)
{
mApp->quit(StatusAppOK);
}
}
}
