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source: code/branches/core4/src/core/input/InputManager.cc @ 4073

Last change on this file since 4073 was 3311, checked in by rgrieder, 15 years ago
You can't watch out for unwanted changes every time… Reverting some stuff with non-exclusive input mode stuff.
Property svn:eol-style set to `native`
File size: 25.0 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/Exception.h"
44	#include "util/ScopeGuard.h"
45	#include "core/Clock.h"
46	#include "core/CoreIncludes.h"
47	#include "core/ConfigValueIncludes.h"
48	#include "core/ConsoleCommand.h"
49	#include "core/CommandLine.h"
50	#include "core/Functor.h"
51
52	#include "InputBuffer.h"
53	#include "KeyDetector.h"
54	#include "JoyStick.h"
55	#include "JoyStickQuantityListener.h"
56	#include "Mouse.h"
57	#include "Keyboard.h"
58
59	namespace orxonox
60	{
61	SetCommandLineSwitch(keyboard_no_grab).information("Whether not to exclusively grab the keyboard");
62
63	// Abuse of this source file for the InputHandler
64	InputHandler InputHandler::EMPTY;
65
66	InputManager* InputManager::singletonRef_s = 0;
67
68	//! Defines the \|= operator for easier use.
69	inline InputManager::State operator\|=(InputManager::State& lval, InputManager::State rval)
70	{
71	return (lval = (InputManager::State)(lval \| rval));
72	}
73
74	//! Defines the &= operator for easier use.
75	inline InputManager::State operator&=(InputManager::State& lval, int rval)
76	{
77	return (lval = (InputManager::State)(lval & rval));
78	}
79
80	// ############################################################
81	// ##### Initialisation #####
82	// ########## ##########
83	// ############################################################
84	InputManager::InputManager(size_t windowHnd)
85	: internalState_(Bad)
86	, oisInputManager_(0)
87	, devices_(2)
88	, windowHnd_(0)
89	, emptyState_(0)
90	, keyDetector_(0)
91	, calibratorCallbackHandler_(0)
92	{
93	RegisterRootObject(InputManager);
94
95	assert(singletonRef_s == 0);
96	singletonRef_s = this;
97
98	CCOUT(4) << "Constructing..." << std::endl;
99
100	this->setConfigValues();
101
102	this->loadDevices(windowHnd);
103
104	// Lowest priority empty InputState
105	emptyState_ = createInputState("empty", false, false, InputStatePriority::Empty);
106	emptyState_->setHandler(&InputHandler::EMPTY);
107	activeStates_[emptyState_->getPriority()] = emptyState_;
108
109	// KeyDetector to evaluate a pressed key's name
110	InputState* detector = createInputState("detector", false, false, InputStatePriority::Detector);
111	// Create a callback to avoid buttonHeld events after the key has been detected
112	FunctorMember<InputManager>* bufferFunctor = createFunctor(&InputManager::clearBuffers);
113	bufferFunctor->setObject(this);
114	detector->setLeaveFunctor(bufferFunctor);
115	keyDetector_ = new KeyDetector();
116	detector->setHandler(keyDetector_);
117
118	// Joy stick calibration helper callback
119	InputState* calibrator = createInputState("calibrator", false, false, InputStatePriority::Calibrator);
120	calibrator->setHandler(&InputHandler::EMPTY);
121	calibratorCallbackHandler_ = new InputBuffer();
122	calibratorCallbackHandler_->registerListener(this, &InputManager::stopCalibration, '\r', true);
123	calibrator->setKeyHandler(calibratorCallbackHandler_);
124
125	this->updateActiveStates();
126
127	{
128	// calibrate console command
129	FunctorMember<InputManager>* functor = createFunctor(&InputManager::calibrate);
130	functor->setObject(this);
131	this->getIdentifier()->addConsoleCommand(createConsoleCommand(functor, "calibrate"), true);
132	}
133	{
134	// reload console command
135	FunctorMember<InputManager>* functor = createFunctor(&InputManager::reload);
136	functor->setObject(this);
137	this->getIdentifier()->addConsoleCommand(createConsoleCommand(functor, "reload"), false);
138	}
139
140	internalState_ = Nothing;
141	CCOUT(4) << "Construction complete." << std::endl;
142	}
143
144	void InputManager::setConfigValues()
145	{
146	}
147
148	/**
149	@brief
150	Creates the OIS::InputMananger, the keyboard, the mouse and
151	the joys ticks. If either of the first two fail, this method throws an exception.
152	@param windowHnd
153	The window handle of the render window
154	@param windowWidth
155	The width of the render window
156	@param windowHeight
157	The height of the render window
158	*/
159	void InputManager::loadDevices(size_t windowHnd)
160	{
161	CCOUT(3) << "Loading input devices..." << std::endl;
162
163	// When loading the devices they should not already be loaded
164	assert(internalState_ & Bad);
165	assert(devices_[InputDeviceEnumerator::Mouse] == 0);
166	assert(devices_[InputDeviceEnumerator::Keyboard] == 0);
167	assert(devices_.size() == InputDeviceEnumerator::FirstJoyStick);
168
169	// store handle internally so we can reload OIS
170	windowHnd_ = windowHnd;
171
172	OIS::ParamList paramList;
173	std::ostringstream windowHndStr;
174
175	// Fill parameter list
176	windowHndStr << (unsigned int)windowHnd_;
177	paramList.insert(std::make_pair(std::string("WINDOW"), windowHndStr.str()));
178	#if defined(ORXONOX_PLATFORM_WINDOWS)
179	//paramList.insert(std::make_pair(std::string("w32_mouse"), std::string("DISCL_NONEXCLUSIVE")));
180	//paramList.insert(std::make_pair(std::string("w32_mouse"), std::string("DISCL_FOREGROUND")));
181	//paramList.insert(std::make_pair(std::string("w32_keyboard"), std::string("DISCL_NONEXCLUSIVE")));
182	//paramList.insert(std::make_pair(std::string("w32_keyboard"), std::string("DISCL_FOREGROUND")));
183	#elif defined(ORXONOX_PLATFORM_LINUX)
184	paramList.insert(std::make_pair(std::string("XAutoRepeatOn"), std::string("true")));
185	paramList.insert(std::make_pair(std::string("x11_mouse_grab"), "true"));
186	paramList.insert(std::make_pair(std::string("x11_mouse_hide"), "true"));
187	bool kbNoGrab;
188	CommandLine::getValue("keyboard_no_grab", &kbNoGrab);
189	if (kbNoGrab)
190	paramList.insert(std::make_pair(std::string("x11_keyboard_grab"), std::string("false")));
191	else
192	paramList.insert(std::make_pair(std::string("x11_keyboard_grab"), std::string("true")));
193	#endif
194
195	try
196	{
197	oisInputManager_ = OIS::InputManager::createInputSystem(paramList);
198	// Exception-safety
199	Loki::ScopeGuard guard = Loki::MakeGuard(OIS::InputManager::destroyInputSystem, oisInputManager_);
200	CCOUT(ORX_DEBUG) << "Created OIS input manager." << std::endl;
201
202	if (oisInputManager_->getNumberOfDevices(OIS::OISKeyboard) > 0)
203	devices_[InputDeviceEnumerator::Keyboard] = new Keyboard(InputDeviceEnumerator::Keyboard, oisInputManager_);
204	else
205	ThrowException(InitialisationFailed, "InputManager: No keyboard found, cannot proceed!");
206
207	// Successful initialisation
208	guard.Dismiss();
209	}
210	catch (std::exception& ex)
211	{
212	oisInputManager_ = NULL;
213	internalState_ \|= Bad;
214	ThrowException(InitialisationFailed, "Could not initialise the input system: " << ex.what());
215	}
216
217	// TODO: Remove the two parameters
218	this->loadMouse();
219	this->loadJoySticks();
220
221	// Reorder states in case some joy sticks were added/removed
222	this->updateActiveStates();
223
224	CCOUT(3) << "Input devices loaded." << std::endl;
225	}
226
227	//! Creates a new orxonox::Mouse
228	void InputManager::loadMouse()
229	{
230	if (oisInputManager_->getNumberOfDevices(OIS::OISMouse) > 0)
231	{
232	try
233	{
234	devices_[InputDeviceEnumerator::Mouse] = new Mouse(InputDeviceEnumerator::Mouse, oisInputManager_);
235	}
236	catch (const OIS::Exception& ex)
237	{
238	CCOUT(2) << "Warning: Failed to create Mouse:" << ex.eText << std::endl
239	<< "Proceeding without mouse support." << std::endl;
240	}
241	}
242	else
243	CCOUT(ORX_WARNING) << "Warning: No mouse found! Proceeding without mouse support." << std::endl;
244	}
245
246	//! Creates as many joy sticks as are available.
247	void InputManager::loadJoySticks()
248	{
249	for (int i = 0; i < oisInputManager_->getNumberOfDevices(OIS::OISJoyStick); i++)
250	{
251	try
252	{
253	devices_.push_back(new JoyStick(InputDeviceEnumerator::FirstJoyStick + i, oisInputManager_));
254	}
255	catch (std::exception ex)
256	{
257	CCOUT(2) << "Warning: Failed to create joy stick: " << ex.what() << std::endl;
258	}
259	}
260
261	// inform all JoyStick Device Number Listeners
262	std::vector<JoyStick*> joyStickList;
263	for (unsigned int i = InputDeviceEnumerator::FirstJoyStick; i < devices_.size(); ++i)
264	joyStickList.push_back(static_cast<JoyStick*>(devices_[i]));
265	JoyStickQuantityListener::changeJoyStickQuantity(joyStickList);
266	}
267
268	void InputManager::setKeyDetectorCallback(const std::string& command)
269	{
270	this->keyDetector_->setCallbackCommand(command);
271	}
272
273	// ############################################################
274	// ##### Destruction #####
275	// ########## ##########
276	// ############################################################
277
278	InputManager::~InputManager()
279	{
280	CCOUT(4) << "Destroying..." << std::endl;
281
282	// Destroy calibrator helper handler and state
283	delete keyDetector_;
284	this->destroyState("calibrator");
285	// Destroy KeyDetector and state
286	delete calibratorCallbackHandler_;
287	this->destroyState("detector");
288	// destroy the empty InputState
289	this->destroyStateInternal(this->emptyState_);
290
291	// destroy all user InputStates
292	while (statesByName_.size() > 0)
293	this->destroyStateInternal((*statesByName_.rbegin()).second);
294
295	if (!(internalState_ & Bad))
296	this->destroyDevices();
297
298	CCOUT(4) << "Destruction complete." << std::endl;
299	singletonRef_s = 0;
300	}
301
302	/**
303	@brief
304	Destoys all input devices (joy sticks, mouse, keyboard and OIS::InputManager)
305	@throw
306	Method does not throw
307	*/
308	void InputManager::destroyDevices()
309	{
310	CCOUT(3) << "Destroying devices..." << std::endl;
311
312	BOOST_FOREACH(InputDevice*& device, devices_)
313	{
314	if (device == NULL)
315	continue;
316	std::string className = device->getClassName();
317	try
318	{
319	delete device;
320	device = 0;
321	CCOUT(4) << className << " destroyed." << std::endl;
322	}
323	catch (...)
324	{
325	CCOUT(1) << className << " destruction failed! Potential resource leak!" << std::endl;
326	}
327	}
328	devices_.resize(InputDeviceEnumerator::FirstJoyStick);
329
330	assert(oisInputManager_ != NULL);
331	try
332	{
333	OIS::InputManager::destroyInputSystem(oisInputManager_);
334	}
335	catch (...)
336	{
337	CCOUT(1) << "OIS::InputManager destruction failed! Potential resource leak!" << std::endl;
338	}
339	oisInputManager_ = NULL;
340
341	internalState_ \|= Bad;
342	CCOUT(3) << "Destroyed devices." << std::endl;
343	}
344
345	// ############################################################
346	// ##### Reloading #####
347	// ########## ##########
348	// ############################################################
349
350	void InputManager::reload()
351	{
352	if (internalState_ & Ticking)
353	{
354	// We cannot destroy OIS right now, because reload was probably
355	// caused by a user clicking on a GUI item. The stack trace would then
356	// include an OIS method. So it would be a very bad thing to destroy it..
357	internalState_ \|= ReloadRequest;
358	}
359	else if (internalState_ & Calibrating)
360	CCOUT(2) << "Warning: Cannot reload input system. Joy sticks are currently being calibrated." << std::endl;
361	else
362	reloadInternal();
363	}
364
365	//! Internal reload method. Destroys the OIS devices and loads them again.
366	void InputManager::reloadInternal()
367	{
368	CCOUT(3) << "Reloading ..." << std::endl;
369
370	this->destroyDevices();
371	this->loadDevices(windowHnd_);
372
373	internalState_ &= ~Bad;
374	internalState_ &= ~ReloadRequest;
375	CCOUT(3) << "Reloading complete." << std::endl;
376	}
377
378	// ############################################################
379	// ##### Runtime Methods #####
380	// ########## ##########
381	// ############################################################
382
383	void InputManager::update(const Clock& time)
384	{
385	if (internalState_ & Bad)
386	ThrowException(General, "InputManager was not correctly reloaded.");
387
388	else if (internalState_ & ReloadRequest)
389	reloadInternal();
390
391	// check for states to leave
392	if (!stateLeaveRequests_.empty())
393	{
394	for (std::set<InputState*>::iterator it = stateLeaveRequests_.begin();
395	it != stateLeaveRequests_.end(); ++it)
396	{
397	(*it)->left();
398	// just to be sure that the state actually is registered
399	assert(statesByName_.find((*it)->getName()) != statesByName_.end());
400
401	activeStates_.erase((*it)->getPriority());
402	if ((*it)->getPriority() < InputStatePriority::HighPriority)
403	(*it)->setPriority(0);
404	updateActiveStates();
405	}
406	stateLeaveRequests_.clear();
407	}
408
409	// check for states to enter
410	if (!stateEnterRequests_.empty())
411	{
412	for (std::set<InputState*>::const_iterator it = stateEnterRequests_.begin();
413	it != stateEnterRequests_.end(); ++it)
414	{
415	// just to be sure that the state actually is registered
416	assert(statesByName_.find((*it)->getName()) != statesByName_.end());
417
418	if ((*it)->getPriority() == 0)
419	{
420	// Get smallest possible priority between 1 and maxStateStackSize_s
421	for(std::map<int, InputState*>::reverse_iterator rit = activeStates_.rbegin();
422	rit != activeStates_.rend(); ++rit)
423	{
424	if (rit->first < InputStatePriority::HighPriority)
425	{
426	(*it)->setPriority(rit->first + 1);
427	break;
428	}
429	}
430	// In case no normal handler was on the stack
431	if ((*it)->getPriority() == 0)
432	(*it)->setPriority(1);
433	}
434	activeStates_[(it)->getPriority()] = (it);
435	updateActiveStates();
436	(*it)->entered();
437	}
438	stateEnterRequests_.clear();
439	}
440
441	// check for states to destroy
442	if (!stateDestroyRequests_.empty())
443	{
444	for (std::set<InputState*>::iterator it = stateDestroyRequests_.begin();
445	it != stateDestroyRequests_.end(); ++it)
446	{
447	destroyStateInternal((*it));
448	}
449	stateDestroyRequests_.clear();
450	}
451
452	// check whether a state has changed its EMPTY situation
453	bool bUpdateRequired = false;
454	for (std::map<int, InputState*>::iterator it = activeStates_.begin(); it != activeStates_.end(); ++it)
455	{
456	if (it->second->hasExpired())
457	{
458	it->second->resetExpiration();
459	bUpdateRequired = true;
460	}
461	}
462	if (bUpdateRequired)
463	updateActiveStates();
464
465	// mark that we now start capturing and distributing input
466	internalState_ \|= Ticking;
467
468	// Capture all the input and handle it
469	BOOST_FOREACH(InputDevice* device, devices_)
470	if (device != NULL)
471	device->update(time);
472
473	// Update the states
474	for (unsigned int i = 0; i < activeStatesTicked_.size(); ++i)
475	activeStatesTicked_[i]->update(time.getDeltaTime());
476
477	internalState_ &= ~Ticking;
478	}
479
480	/**
481	@brief
482	Updates the currently active states (according to activeStates_) for each device.
483	Also, a list of all active states (no duplicates!) is compiled for the general update().
484	*/
485	void InputManager::updateActiveStates()
486	{
487	// temporary resize
488	for (unsigned int i = 0; i < devices_.size(); ++i)
489	{
490	if (devices_[i] == NULL)
491	continue;
492	std::vector<InputState*>& states = devices_[i]->getStateListRef();
493	bool occupied = false;
494	states.clear();
495	for (std::map<int, InputState*>::reverse_iterator rit = activeStates_.rbegin(); rit != activeStates_.rend(); ++rit)
496	{
497	if (rit->second->isInputDeviceEnabled(i) && (!occupied \|\| rit->second->bAlwaysGetsInput_))
498	{
499	states.push_back(rit->second);
500	if (!rit->second->bTransparent_)
501	occupied = true;
502	}
503	}
504	}
505
506	// update tickables (every state will only appear once)
507	// Using a std::set to avoid duplicates
508	std::set<InputState*> tempSet;
509	for (unsigned int i = 0; i < devices_.size(); ++i)
510	if (devices_[i] != NULL)
511	for (unsigned int iState = 0; iState < devices_[i]->getStateListRef().size(); ++iState)
512	tempSet.insert(devices_[i]->getStateListRef()[iState]);
513
514	// copy the content of the std::set back to the actual vector
515	activeStatesTicked_.clear();
516	for (std::set<InputState*>::const_iterator it = tempSet.begin();it != tempSet.end(); ++it)
517	activeStatesTicked_.push_back(*it);
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	// ############################################################
563	// ##### Iput States #####
564	// ########## ##########
565	// ############################################################
566
567	InputState* InputManager::createInputState(const std::string& name, bool bAlwaysGetsInput, bool bTransparent, InputStatePriority priority)
568	{
569	if (name == "")
570	return 0;
571	if (statesByName_.find(name) == statesByName_.end())
572	{
573	if (priority >= InputStatePriority::HighPriority \|\| priority == InputStatePriority::Empty)
574	{
575	// Make sure we don't add two high priority states with the same priority
576	for (std::map<std::string, InputState*>::const_iterator it = this->statesByName_.begin();
577	it != this->statesByName_.end(); ++it)
578	{
579	if (it->second->getPriority() == priority)
580	{
581	COUT(2) << "Warning: Could not add an InputState with the same priority '"
582	<< static_cast<int>(priority) << "' != 0." << std::endl;
583	return 0;
584	}
585	}
586	}
587	InputState* state = new InputState(name, bAlwaysGetsInput, bTransparent, priority);
588	statesByName_[name] = state;
589
590	return state;
591	}
592	else
593	{
594	COUT(2) << "Warning: Could not add an InputState with the same name '" << name << "'." << std::endl;
595	return 0;
596	}
597	}
598
599	InputState* InputManager::getState(const std::string& name)
600	{
601	std::map<std::string, InputState*>::iterator it = statesByName_.find(name);
602	if (it != statesByName_.end())
603	return it->second;
604	else
605	return 0;
606	}
607
608	bool InputManager::enterState(const std::string& name)
609	{
610	// get pointer from the map with all stored handlers
611	std::map<std::string, InputState*>::const_iterator it = statesByName_.find(name);
612	if (it != statesByName_.end())
613	{
614	// exists
615	if (activeStates_.find(it->second->getPriority()) == activeStates_.end())
616	{
617	// not active
618	if (stateDestroyRequests_.find(it->second) == stateDestroyRequests_.end())
619	{
620	// not scheduled for destruction
621	// prevents a state being added multiple times
622	stateEnterRequests_.insert(it->second);
623	return true;
624	}
625	}
626	}
627	return false;
628	}
629
630	bool InputManager::leaveState(const std::string& name)
631	{
632	if (name == "empty")
633	{
634	COUT(2) << "InputManager: Leaving the empty state is not allowed!" << std::endl;
635	return false;
636	}
637	// get pointer from the map with all stored handlers
638	std::map<std::string, InputState*>::const_iterator it = statesByName_.find(name);
639	if (it != statesByName_.end())
640	{
641	// exists
642	if (activeStates_.find(it->second->getPriority()) != activeStates_.end())
643	{
644	// active
645	stateLeaveRequests_.insert(it->second);
646	return true;
647	}
648	}
649	return false;
650	}
651
652	bool InputManager::destroyState(const std::string& name)
653	{
654	if (name == "empty")
655	{
656	COUT(2) << "InputManager: Removing the empty state is not allowed!" << std::endl;
657	return false;
658	}
659	std::map<std::string, InputState*>::iterator it = statesByName_.find(name);
660	if (it != statesByName_.end())
661	{
662	if (activeStates_.find(it->second->getPriority()) != activeStates_.end())
663	{
664	// The state is still active. We have to postpone
665	stateLeaveRequests_.insert(it->second);
666	stateDestroyRequests_.insert(it->second);
667	}
668	else if (this->internalState_ & Ticking)
669	{
670	// cannot remove state while ticking
671	stateDestroyRequests_.insert(it->second);
672	}
673	else
674	destroyStateInternal(it->second);
675
676	return true;
677	}
678	return false;
679	}
680
681	//! Destroys an InputState internally.
682	void InputManager::destroyStateInternal(InputState* state)
683	{
684	assert(state && !(this->internalState_ & Ticking));
685	std::map<int, InputState*>::iterator it = this->activeStates_.find(state->getPriority());
686	if (it != this->activeStates_.end())
687	{
688	this->activeStates_.erase(it);
689	updateActiveStates();
690	}
691	statesByName_.erase(state->getName());
692	delete state;
693	}
694	}

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