StateManager::~StateManager()
{
ILOGM("StateManager::dtor()");
// Drop all active states
while(!mStack.empty())
{
// Retrieve the currently active state
IState* anState = mStack.back();
// Pop the currently active state off the stack
mStack.pop_back();
// Pause the currently active state
anState->pause();
// De-initialize the state
anState->deInit();
// Handle the cleanup before we pop it off the stack
anState->cleanup();
// Just delete the state now
delete anState;
// Don't keep pointers around we don't need
anState = NULL;
}
// Delete all our dropped states
while(!mDead.empty())
{
// Retrieve the currently active state
IState* anState = mDead.back();
// Pop the currently active state off the stack
mDead.pop_back();
// Pause the currently active state
anState->pause();
// De-initialize the state
anState->deInit();
// Handle the cleanup before we pop it off the stack
anState->cleanup();
// Just delete the state now
delete anState;
// Don't keep pointers around we don't need
anState = NULL;
}
// Clear pointers we don't need anymore
mApp = NULL;
}
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::cleanup(void)
{
// Always call our cleanup events with our pointer when this method is called
mCleanupEvents.doEvents();
// Remove one of our dead states
if(!mDead.empty())
{
// Retrieve the dead state
IState* anState = mDead.back();
assert(NULL != anState && "StateManager::handleCleanup() invalid dropped state pointer");
// Pop the dead state off the stack
mDead.pop_back();
// Call the DeInit if it hasn't been called yet
if(anState->isInitComplete())
{
anState->deInit();
}
// Handle the cleanup before we delete anState
anState->cleanup();
// Just delete the state now
delete anState;
// Don't keep pointers around we don't need
anState = NULL;
}
// Make sure we still have an active state
if(NULL == mStack.back())
{
// There are no states on the stack, exit the program
if(NULL != mApp)
{
mApp->quit(StatusAppOK);
}
}
}
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);
}
}
}
