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source: code/branches/pickup/src/libraries/core/input/InputManager.cc @ 6227

Last change on this file since 6227 was 5935, checked in by dafrick, 15 years ago
Hopefully merged trunk successfully into pickup branch.
Property svn:eol-style set to `native`
File size: 25.8 KB

Line
1	/*
2	* ORXONOX - the hottest 3D action shooter ever to exist
3	* > www.orxonox.net <
4	*
5	*
6	* License notice:
7	*
8	* This program is free software; you can redistribute it and/or
9	* modify it under the terms of the GNU General Public License
10	* as published by the Free Software Foundation; either version 2
11	* of the License, or (at your option) any later version.
12	*
13	* This program is distributed in the hope that it will be useful,
14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16	* GNU General Public License for more details.
17	*
18	* You should have received a copy of the GNU General Public License
19	* along with this program; if not, write to the Free Software
20	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
21	*
22	* Author:
23	* Reto Grieder
24	* Co-authors:
25	* ...
26	*
27	*/
28
29	/**
30	@file
31	@brief
32	Implementation of the InputManager and a static variable from the InputHandler.
33	*/
34
35	#include "InputManager.h"
36
37	#include <cassert>
38	#include <climits>
39	#include <ois/OISException.h>
40	#include <ois/OISInputManager.h>
41	#include <boost/foreach.hpp>
42
43	#include "util/Clock.h"
44	#include "util/Convert.h"
45	#include "util/Exception.h"
46	#include "util/ScopeGuard.h"
47	#include "core/CoreIncludes.h"
48	#include "core/ConfigValueIncludes.h"
49	#include "core/ConsoleCommand.h"
50	#include "core/CommandLine.h"
51	#include "core/Functor.h"
52	#include "core/GraphicsManager.h"
53
54	#include "InputBuffer.h"
55	#include "JoyStick.h"
56	#include "JoyStickQuantityListener.h"
57	#include "Mouse.h"
58	#include "Keyboard.h"
59
60	namespace orxonox
61	{
62	SetCommandLineSwitch(keyboard_no_grab).information("Whether not to exclusively grab the keyboard");
63
64	// Abuse of this source file for the InputHandler
65	InputHandler InputHandler::EMPTY;
66
67	InputManager* InputManager::singletonPtr_s = 0;
68
69	//! Defines the \|= operator for easier use.
70	inline InputManager::State operator\|=(InputManager::State& lval, InputManager::State rval)
71	{
72	return (lval = (InputManager::State)(lval \| rval));
73	}
74
75	//! Defines the &= operator for easier use.
76	inline InputManager::State operator&=(InputManager::State& lval, int rval)
77	{
78	return (lval = (InputManager::State)(lval & rval));
79	}
80
81	// ############################################################
82	// ##### Initialisation #####
83	// ########## ##########
84	// ############################################################
85	InputManager::InputManager()
86	: internalState_(Bad)
87	, oisInputManager_(0)
88	, devices_(2)
89	, mouseMode_(MouseMode::Nonexclusive)
90	, emptyState_(0)
91	, calibratorCallbackHandler_(0)
92	{
93	RegisterRootObject(InputManager);
94
95	CCOUT(4) << "Constructing..." << std::endl;
96
97	this->setConfigValues();
98
99	if (GraphicsManager::getInstance().isFullScreen())
100	mouseMode_ = MouseMode::Exclusive;
101	this->loadDevices();
102
103	// Lowest priority empty InputState
104	emptyState_ = createInputState("empty", false, false, InputStatePriority::Empty);
105	emptyState_->setHandler(&InputHandler::EMPTY);
106	activeStates_[emptyState_->getPriority()] = emptyState_;
107
108	// Joy stick calibration helper callback
109	InputState* calibrator = createInputState("calibrator", false, false, InputStatePriority::Calibrator);
110	calibrator->setHandler(&InputHandler::EMPTY);
111	calibratorCallbackHandler_ = new InputBuffer();
112	calibratorCallbackHandler_->registerListener(this, &InputManager::stopCalibration, '\r', true);
113	calibrator->setKeyHandler(calibratorCallbackHandler_);
114
115	this->updateActiveStates();
116
117	// calibrate console command
118	this->getIdentifier()->addConsoleCommand(createConsoleCommand(createFunctor(&InputManager::calibrate, this), "calibrate"), true);
119	// reload console command
120	this->getIdentifier()->addConsoleCommand(createConsoleCommand(createFunctor(&InputManager::reload, this), "reload"), false);
121
122	CCOUT(4) << "Construction complete." << std::endl;
123	internalState_ = Nothing;
124	}
125
126	void InputManager::setConfigValues()
127	{
128	}
129
130	/**
131	@brief
132	Creates the OIS::InputMananger, the keyboard, the mouse and
133	the joys ticks. If either of the first two fail, this method throws an exception.
134	@param windowWidth
135	The width of the render window
136	@param windowHeight
137	The height of the render window
138	*/
139	void InputManager::loadDevices()
140	{
141	CCOUT(4) << "Loading input devices..." << std::endl;
142
143	// When loading the devices they should not already be loaded
144	assert(internalState_ & Bad);
145	assert(devices_[InputDeviceEnumerator::Mouse] == 0);
146	assert(devices_[InputDeviceEnumerator::Keyboard] == 0);
147	assert(devices_.size() == InputDeviceEnumerator::FirstJoyStick);
148
149	// Fill parameter list
150	OIS::ParamList paramList;
151	size_t windowHnd = GraphicsManager::getInstance().getRenderWindowHandle();
152	paramList.insert(std::make_pair("WINDOW", multi_cast<std::string>(windowHnd)));
153	#if defined(ORXONOX_PLATFORM_WINDOWS)
154	paramList.insert(std::make_pair("w32_keyboard", "DISCL_NONEXCLUSIVE"));
155	paramList.insert(std::make_pair("w32_keyboard", "DISCL_FOREGROUND"));
156	paramList.insert(std::make_pair("w32_mouse", "DISCL_FOREGROUND"));
157	if (mouseMode_ == MouseMode::Exclusive \|\| GraphicsManager::getInstance().isFullScreen())
158	{
159	// Disable Windows key plus special keys (like play, stop, next, etc.)
160	paramList.insert(std::make_pair("w32_keyboard", "DISCL_NOWINKEY"));
161	paramList.insert(std::make_pair("w32_mouse", "DISCL_EXCLUSIVE"));
162	}
163	else
164	paramList.insert(std::make_pair("w32_mouse", "DISCL_NONEXCLUSIVE"));
165	#elif defined(ORXONOX_PLATFORM_LINUX)
166	// Enabling this is probably a bad idea, but whenever orxonox crashes, the setting stays on
167	// Trouble might be that the Pressed event occurs a bit too often...
168	paramList.insert(std::make_pair("XAutoRepeatOn", "true"));
169
170	if (mouseMode_ == MouseMode::Exclusive \|\| GraphicsManager::getInstance().isFullScreen())
171	{
172	if (CommandLine::getValue("keyboard_no_grab").getBool())
173	paramList.insert(std::make_pair("x11_keyboard_grab", "false"));
174	else
175	paramList.insert(std::make_pair("x11_keyboard_grab", "true"));
176	paramList.insert(std::make_pair("x11_mouse_grab", "true"));
177	paramList.insert(std::make_pair("x11_mouse_hide", "true"));
178	}
179	else
180	{
181	paramList.insert(std::make_pair("x11_keyboard_grab", "false"));
182	paramList.insert(std::make_pair("x11_mouse_grab", "false"));
183	paramList.insert(std::make_pair("x11_mouse_hide", "false"));
184	}
185	#endif
186
187	try
188	{
189	oisInputManager_ = OIS::InputManager::createInputSystem(paramList);
190	// Exception-safety
191	Loki::ScopeGuard guard = Loki::MakeGuard(OIS::InputManager::destroyInputSystem, oisInputManager_);
192	CCOUT(ORX_DEBUG) << "Created OIS input manager." << std::endl;
193
194	if (oisInputManager_->getNumberOfDevices(OIS::OISKeyboard) > 0)
195	devices_[InputDeviceEnumerator::Keyboard] = new Keyboard(InputDeviceEnumerator::Keyboard, oisInputManager_);
196	else
197	ThrowException(InitialisationFailed, "InputManager: No keyboard found, cannot proceed!");
198
199	// Successful initialisation
200	guard.Dismiss();
201	}
202	catch (const std::exception& ex)
203	{
204	oisInputManager_ = NULL;
205	internalState_ \|= Bad;
206	ThrowException(InitialisationFailed, "Could not initialise the input system: " << ex.what());
207	}
208
209	this->loadMouse();
210	this->loadJoySticks();
211
212	// Reorder states in case some joy sticks were added/removed
213	this->updateActiveStates();
214
215	CCOUT(4) << "Input devices loaded." << std::endl;
216	}
217
218	//! Creates a new orxonox::Mouse
219	void InputManager::loadMouse()
220	{
221	if (oisInputManager_->getNumberOfDevices(OIS::OISMouse) > 0)
222	{
223	try
224	{
225	devices_[InputDeviceEnumerator::Mouse] = new Mouse(InputDeviceEnumerator::Mouse, oisInputManager_);
226	}
227	catch (const std::exception& ex)
228	{
229	CCOUT(2) << "Warning: Failed to create Mouse:" << ex.what() << std::endl
230	<< "Proceeding without mouse support." << std::endl;
231	}
232	}
233	else
234	CCOUT(ORX_WARNING) << "Warning: No mouse found! Proceeding without mouse support." << std::endl;
235	}
236
237	//! Creates as many joy sticks as are available.
238	void InputManager::loadJoySticks()
239	{
240	for (int i = 0; i < oisInputManager_->getNumberOfDevices(OIS::OISJoyStick); i++)
241	{
242	try
243	{
244	devices_.push_back(new JoyStick(InputDeviceEnumerator::FirstJoyStick + i, oisInputManager_));
245	}
246	catch (const std::exception& ex)
247	{
248	CCOUT(2) << "Warning: Failed to create joy stick: " << ex.what() << std::endl;
249	}
250	}
251
252	// inform all JoyStick Device Number Listeners
253	std::vector<JoyStick*> joyStickList;
254	for (unsigned int i = InputDeviceEnumerator::FirstJoyStick; i < devices_.size(); ++i)
255	joyStickList.push_back(static_cast<JoyStick*>(devices_[i]));
256	JoyStickQuantityListener::changeJoyStickQuantity(joyStickList);
257	}
258
259	// ############################################################
260	// ##### Destruction #####
261	// ########## ##########
262	// ############################################################
263
264	InputManager::~InputManager()
265	{
266	CCOUT(3) << "Destroying..." << std::endl;
267
268	// Destroy calibrator helper handler and state
269	this->destroyState("calibrator");
270	// Destroy KeyDetector and state
271	calibratorCallbackHandler_->destroy();
272	// destroy the empty InputState
273	this->destroyStateInternal(this->emptyState_);
274
275	// destroy all user InputStates
276	while (statesByName_.size() > 0)
277	this->destroyStateInternal((*statesByName_.rbegin()).second);
278
279	if (!(internalState_ & Bad))
280	this->destroyDevices();
281
282	CCOUT(3) << "Destruction complete." << std::endl;
283	}
284
285	/**
286	@brief
287	Destoys all input devices (joy sticks, mouse, keyboard and OIS::InputManager)
288	@throw
289	Method does not throw
290	*/
291	void InputManager::destroyDevices()
292	{
293	CCOUT(4) << "Destroying devices..." << std::endl;
294
295	BOOST_FOREACH(InputDevice*& device, devices_)
296	{
297	if (device == NULL)
298	continue;
299	std::string className = device->getClassName();
300	try
301	{
302	delete device;
303	device = 0;
304	CCOUT(4) << className << " destroyed." << std::endl;
305	}
306	catch (...)
307	{
308	COUT(1) << className << " destruction failed: " << Exception::handleMessage() << std::endl
309	<< " Potential resource leak!" << std::endl;
310	}
311	}
312	devices_.resize(InputDeviceEnumerator::FirstJoyStick);
313
314	assert(oisInputManager_ != NULL);
315	try
316	{
317	OIS::InputManager::destroyInputSystem(oisInputManager_);
318	}
319	catch (...)
320	{
321	COUT(1) << "OIS::InputManager destruction failed" << Exception::handleMessage() << std::endl
322	<< " Potential resource leak!" << std::endl;
323	}
324	oisInputManager_ = NULL;
325
326	internalState_ \|= Bad;
327	CCOUT(4) << "Destroyed devices." << std::endl;
328	}
329
330	// ############################################################
331	// ##### Reloading #####
332	// ########## ##########
333	// ############################################################
334
335	void InputManager::reload()
336	{
337	if (internalState_ & Ticking)
338	{
339	// We cannot destroy OIS right now, because reload was probably
340	// caused by a user clicking on a GUI item. The stack trace would then
341	// include an OIS method. So it would be a very bad thing to destroy it..
342	internalState_ \|= ReloadRequest;
343	}
344	else if (internalState_ & Calibrating)
345	CCOUT(2) << "Warning: Cannot reload input system. Joy sticks are currently being calibrated." << std::endl;
346	else
347	reloadInternal();
348	}
349
350	//! Internal reload method. Destroys the OIS devices and loads them again.
351	void InputManager::reloadInternal()
352	{
353	CCOUT(3) << "Reloading ..." << std::endl;
354
355	this->destroyDevices();
356	this->loadDevices();
357
358	internalState_ &= ~Bad;
359	internalState_ &= ~ReloadRequest;
360	CCOUT(4) << "Reloading complete." << std::endl;
361	}
362
363	// ############################################################
364	// ##### Runtime Methods #####
365	// ########## ##########
366	// ############################################################
367
368	void InputManager::update(const Clock& time)
369	{
370	if (internalState_ & Bad)
371	ThrowException(General, "InputManager was not correctly reloaded.");
372
373	else if (internalState_ & ReloadRequest)
374	reloadInternal();
375
376	// check for states to leave
377	if (!stateLeaveRequests_.empty())
378	{
379	for (std::set<InputState*>::iterator it = stateLeaveRequests_.begin();
380	it != stateLeaveRequests_.end(); ++it)
381	{
382	(*it)->left();
383	// just to be sure that the state actually is registered
384	assert(statesByName_.find((*it)->getName()) != statesByName_.end());
385
386	activeStates_.erase((*it)->getPriority());
387	if ((*it)->getPriority() < InputStatePriority::HighPriority)
388	(*it)->setPriority(0);
389	updateActiveStates();
390	}
391	stateLeaveRequests_.clear();
392	}
393
394	// check for states to enter
395	if (!stateEnterRequests_.empty())
396	{
397	for (std::set<InputState*>::const_iterator it = stateEnterRequests_.begin();
398	it != stateEnterRequests_.end(); ++it)
399	{
400	// just to be sure that the state actually is registered
401	assert(statesByName_.find((*it)->getName()) != statesByName_.end());
402
403	if ((*it)->getPriority() == 0)
404	{
405	// Get smallest possible priority between 1 and maxStateStackSize_s
406	for(std::map<int, InputState*>::reverse_iterator rit = activeStates_.rbegin();
407	rit != activeStates_.rend(); ++rit)
408	{
409	if (rit->first < InputStatePriority::HighPriority)
410	{
411	(*it)->setPriority(rit->first + 1);
412	break;
413	}
414	}
415	// In case no normal handler was on the stack
416	if ((*it)->getPriority() == 0)
417	(*it)->setPriority(1);
418	}
419	activeStates_[(it)->getPriority()] = (it);
420	updateActiveStates();
421	(*it)->entered();
422	}
423	stateEnterRequests_.clear();
424	}
425
426	// check for states to destroy
427	if (!stateDestroyRequests_.empty())
428	{
429	for (std::set<InputState*>::iterator it = stateDestroyRequests_.begin();
430	it != stateDestroyRequests_.end(); ++it)
431	{
432	destroyStateInternal((*it));
433	}
434	stateDestroyRequests_.clear();
435	}
436
437	// check whether a state has changed its EMPTY situation
438	bool bUpdateRequired = false;
439	for (std::map<int, InputState*>::iterator it = activeStates_.begin(); it != activeStates_.end(); ++it)
440	{
441	if (it->second->hasExpired())
442	{
443	it->second->resetExpiration();
444	bUpdateRequired = true;
445	}
446	}
447	if (bUpdateRequired)
448	updateActiveStates();
449
450	// mark that we now start capturing and distributing input
451	internalState_ \|= Ticking;
452
453	// Capture all the input and handle it
454	BOOST_FOREACH(InputDevice* device, devices_)
455	if (device != NULL)
456	device->update(time);
457
458	// Update the states
459	for (unsigned int i = 0; i < activeStatesTicked_.size(); ++i)
460	activeStatesTicked_[i]->update(time.getDeltaTime());
461
462	internalState_ &= ~Ticking;
463	}
464
465	/**
466	@brief
467	Updates the currently active states (according to activeStates_) for each device.
468	Also, a list of all active states (no duplicates!) is compiled for the general update().
469	*/
470	void InputManager::updateActiveStates()
471	{
472	assert((internalState_ & InputManager::Ticking) == 0);
473	// temporary resize
474	for (unsigned int i = 0; i < devices_.size(); ++i)
475	{
476	if (devices_[i] == NULL)
477	continue;
478	std::vector<InputState*>& states = devices_[i]->getStateListRef();
479	bool occupied = false;
480	states.clear();
481	for (std::map<int, InputState*>::reverse_iterator rit = activeStates_.rbegin(); rit != activeStates_.rend(); ++rit)
482	{
483	if (rit->second->isInputDeviceEnabled(i) && (!occupied \|\| rit->second->bAlwaysGetsInput_))
484	{
485	states.push_back(rit->second);
486	if (!rit->second->bTransparent_)
487	occupied = true;
488	}
489	}
490	}
491
492	// update tickables (every state will only appear once)
493	// Using a std::set to avoid duplicates
494	std::set<InputState*> tempSet;
495	for (unsigned int i = 0; i < devices_.size(); ++i)
496	if (devices_[i] != NULL)
497	for (unsigned int iState = 0; iState < devices_[i]->getStateListRef().size(); ++iState)
498	tempSet.insert(devices_[i]->getStateListRef()[iState]);
499
500	// copy the content of the std::set back to the actual vector
501	activeStatesTicked_.clear();
502	for (std::set<InputState*>::const_iterator it = tempSet.begin();it != tempSet.end(); ++it)
503	activeStatesTicked_.push_back(*it);
504
505	// Check whether we have to change the mouse mode
506	MouseMode::Value requestedMode = MouseMode::Dontcare;
507	std::vector<InputState*>& mouseStates = devices_[InputDeviceEnumerator::Mouse]->getStateListRef();
508	if (mouseStates.empty())
509	requestedMode = MouseMode::Nonexclusive;
510	else
511	requestedMode = mouseStates.front()->getMouseMode();
512	if (requestedMode != MouseMode::Dontcare && mouseMode_ != requestedMode)
513	{
514	mouseMode_ = requestedMode;
515	if (!GraphicsManager::getInstance().isFullScreen())
516	this->reloadInternal();
517	}
518	}
519
520	void InputManager::clearBuffers()
521	{
522	BOOST_FOREACH(InputDevice* device, devices_)
523	if (device != NULL)
524	device->clearBuffers();
525	}
526
527	void InputManager::calibrate()
528	{
529	COUT(0) << "Move all joy stick axes fully in all directions." << std::endl
530	<< "When done, put the axex in the middle position and press enter." << std::endl;
531
532	BOOST_FOREACH(InputDevice* device, devices_)
533	if (device != NULL)
534	device->startCalibration();
535
536	internalState_ \|= Calibrating;
537	enterState("calibrator");
538	}
539
540	//! Tells all devices to stop the calibration and evaluate it. Buffers are being cleared as well!
541	void InputManager::stopCalibration()
542	{
543	BOOST_FOREACH(InputDevice* device, devices_)
544	if (device != NULL)
545	device->stopCalibration();
546
547	// restore old input state
548	leaveState("calibrator");
549	internalState_ &= ~Calibrating;
550	// Clear buffers to prevent button hold events
551	this->clearBuffers();
552
553	COUT(0) << "Calibration has been stored." << std::endl;
554	}
555
556	//! Gets called by WindowEventListener upon focus change --> clear buffers
557	void InputManager::windowFocusChanged()
558	{
559	this->clearBuffers();
560	}
561
562	std::pair<int, int> InputManager::getMousePosition() const
563	{
564	Mouse* mouse = static_cast<Mouse*>(devices_[InputDeviceEnumerator::Mouse]);
565	if (mouse != NULL)
566	{
567	const OIS::MouseState state = mouse->getOISDevice()->getMouseState();
568	return std::make_pair(state.X.abs, state.Y.abs);
569	}
570	else
571	return std::make_pair(0, 0);
572	}
573
574	// ############################################################
575	// ##### Input States #####
576	// ########## ##########
577	// ############################################################
578
579	InputState* InputManager::createInputState(const std::string& name, bool bAlwaysGetsInput, bool bTransparent, InputStatePriority priority)
580	{
581	if (name == "")
582	return 0;
583	if (statesByName_.find(name) == statesByName_.end())
584	{
585	if (priority >= InputStatePriority::HighPriority \|\| priority == InputStatePriority::Empty)
586	{
587	// Make sure we don't add two high priority states with the same priority
588	for (std::map<std::string, InputState*>::const_iterator it = this->statesByName_.begin();
589	it != this->statesByName_.end(); ++it)
590	{
591	if (it->second->getPriority() == priority)
592	{
593	COUT(2) << "Warning: Could not add an InputState with the same priority '"
594	<< static_cast<int>(priority) << "' != 0." << std::endl;
595	return 0;
596	}
597	}
598	}
599	InputState* state = new InputState(name, bAlwaysGetsInput, bTransparent, priority);
600	statesByName_[name] = state;
601
602	return state;
603	}
604	else
605	{
606	COUT(2) << "Warning: Could not add an InputState with the same name '" << name << "'." << std::endl;
607	return 0;
608	}
609	}
610
611	InputState* InputManager::getState(const std::string& name)
612	{
613	std::map<std::string, InputState*>::iterator it = statesByName_.find(name);
614	if (it != statesByName_.end())
615	return it->second;
616	else
617	return 0;
618	}
619
620	bool InputManager::enterState(const std::string& name)
621	{
622	// get pointer from the map with all stored handlers
623	std::map<std::string, InputState*>::const_iterator it = statesByName_.find(name);
624	if (it != statesByName_.end())
625	{
626	// exists
627	if (activeStates_.find(it->second->getPriority()) == activeStates_.end())
628	{
629	// not active
630	if (stateDestroyRequests_.find(it->second) == stateDestroyRequests_.end())
631	{
632	// not scheduled for destruction
633	// prevents a state being added multiple times
634	stateEnterRequests_.insert(it->second);
635	return true;
636	}
637	}
638	}
639	return false;
640	}
641
642	bool InputManager::leaveState(const std::string& name)
643	{
644	if (name == "empty")
645	{
646	COUT(2) << "InputManager: Leaving the empty state is not allowed!" << std::endl;
647	return false;
648	}
649	// get pointer from the map with all stored handlers
650	std::map<std::string, InputState*>::const_iterator it = statesByName_.find(name);
651	if (it != statesByName_.end())
652	{
653	// exists
654	if (activeStates_.find(it->second->getPriority()) != activeStates_.end())
655	{
656	// active
657	stateLeaveRequests_.insert(it->second);
658	return true;
659	}
660	}
661	return false;
662	}
663
664	bool InputManager::destroyState(const std::string& name)
665	{
666	if (name == "empty")
667	{
668	COUT(2) << "InputManager: Removing the empty state is not allowed!" << std::endl;
669	return false;
670	}
671	std::map<std::string, InputState*>::iterator it = statesByName_.find(name);
672	if (it != statesByName_.end())
673	{
674	if (activeStates_.find(it->second->getPriority()) != activeStates_.end())
675	{
676	// The state is still active. We have to postpone
677	stateLeaveRequests_.insert(it->second);
678	stateDestroyRequests_.insert(it->second);
679	}
680	else if (this->internalState_ & Ticking)
681	{
682	// cannot remove state while ticking
683	stateDestroyRequests_.insert(it->second);
684	}
685	else
686	destroyStateInternal(it->second);
687
688	return true;
689	}
690	return false;
691	}
692
693	//! Destroys an InputState internally.
694	void InputManager::destroyStateInternal(InputState* state)
695	{
696	assert(state && !(this->internalState_ & Ticking));
697	std::map<int, InputState*>::iterator it = this->activeStates_.find(state->getPriority());
698	if (it != this->activeStates_.end())
699	{
700	this->activeStates_.erase(it);
701	updateActiveStates();
702	}
703	statesByName_.erase(state->getName());
704	state->destroy();
705	}
706	}

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