C++ EventManager::pollEvent方法代码示例

void DrasculaEngine::updateEvents() {
	Common::Event event;
	Common::EventManager *eventMan = _system->getEventManager();

	updateMusic();

#ifdef _WIN32_WCE
	if (eventMan->pollEvent(event)) {
#else
	while (eventMan->pollEvent(event)) {
#endif
		switch (event.type) {
		case Common::EVENT_KEYDOWN:
			if (event.kbd.keycode == Common::KEYCODE_d && event.kbd.hasFlags(Common::KBD_CTRL)) {
				// Start the debugger
				getDebugger()->attach();
				getDebugger()->onFrame();
			}
			addKeyToBuffer(event.kbd);
			break;
		case Common::EVENT_KEYUP:
			break;
		case Common::EVENT_MOUSEMOVE:
			_mouseX = event.mouse.x;
			_mouseY = event.mouse.y;
			break;
		case Common::EVENT_LBUTTONDOWN:
			_leftMouseButton = 1;
			break;
		case Common::EVENT_LBUTTONUP:
			_leftMouseButton = 0;
			break;
		case Common::EVENT_RBUTTONDOWN:
			// We changed semantic and react only on button up event
			break;
		case Common::EVENT_RBUTTONUP:
			_rightMouseButton = 1;
			break;
		default:
			break;
		}
	}
}

void DrasculaEngine::delay(int ms) {
	uint32 end = _system->getMillis() + ms * 2; // originally was 1

	do {
		_system->delayMillis(10);
		updateEvents();
		_system->updateScreen();
	} while (_system->getMillis() < end && !shouldQuit());
}

void BladeRunnerEngine::handleEvents() {
	if (shouldQuit()) {
		_gameIsRunning = false;
		return;
	}

	Common::Event event;
	Common::EventManager *eventMan = _system->getEventManager();
	while (eventMan->pollEvent(event)) {
		switch (event.type) {
		case Common::EVENT_KEYUP:
			handleKeyUp(event);
			break;
		case Common::EVENT_KEYDOWN:
			handleKeyDown(event);
			break;
		case Common::EVENT_LBUTTONUP:
			handleMouseAction(event.mouse.x, event.mouse.y, true, false);
			break;
		case Common::EVENT_RBUTTONUP:
		case Common::EVENT_MBUTTONUP:
			handleMouseAction(event.mouse.x, event.mouse.y, false, false);
			break;
		case Common::EVENT_LBUTTONDOWN:
			handleMouseAction(event.mouse.x, event.mouse.y, true, true);
			break;
		case Common::EVENT_RBUTTONDOWN:
		case Common::EVENT_MBUTTONDOWN:
			handleMouseAction(event.mouse.x, event.mouse.y, false, true);
			break;
		default:
			; // nothing to do
		}
	}
}

void VideoPlayer::processVideoEvents(Common::List<Common::Event> &stopEvents) {
	Common::Event curEvent;
	Common::EventManager *eventMan = g_system->getEventManager();

	// Process events, and skip video if esc is pressed
	while (eventMan->pollEvent(curEvent)) {
		if (curEvent.type == Common::EVENT_RTL || curEvent.type == Common::EVENT_QUIT) {
			_skipVideo = true;
		}

		for (Common::List<Common::Event>::const_iterator iter = stopEvents.begin(); iter != stopEvents.end(); iter++) {
			if (curEvent.type == iter->type) {
				if (iter->type == Common::EVENT_KEYDOWN || iter->type == Common::EVENT_KEYUP) {
					if (curEvent.kbd.keycode == iter->kbd.keycode) {
						_skipVideo = true;
						break;
					}
				} else {
					_skipVideo = true;
					break;
				}
			}
		}
	}
}

char EventTests::keystrokeToChar() {
	Common::EventManager *eventMan = g_system->getEventManager();
	bool quitLoop = false;
	Common::Event event;

	// handle all keybd events
	while (!quitLoop) {
		while (eventMan->pollEvent(event)) {
			// Quit if explicitly requested!
			if (Engine::shouldQuit()) {
				return 0;
			}

			switch (event.type) {
			case Common::EVENT_KEYDOWN:
				if (event.kbd.keycode == Common::KEYCODE_ESCAPE) {
					return 0;
				}
				for (int i = 0; i < ARRAYSIZE(keyCodeLUT); i++) {
					if (event.kbd.keycode == keyCodeLUT[i].code) {
						return keyCodeLUT[i].value;
					}
				}
				break;
			default:
				break;	// Ignore other events
			}
		}
	}

	return 0;
}

bool Intro::escDelay(uint32 msecs) {
	Common::EventManager *eventMan = _system->getEventManager();
	Common::Event event;

	if (_relDelay == 0) // first call, init with system time
		_relDelay = (int32)_system->getMillis();

	_relDelay += msecs; // now wait until _system->getMillis() >= _relDelay

	int32 nDelay = 0;
	do {
		while (eventMan->pollEvent(event)) {
			if (event.type == Common::EVENT_KEYDOWN) {
				if (event.kbd.keycode == Common::KEYCODE_ESCAPE)
					return false;
			} else if (event.type == Common::EVENT_QUIT || event.type == Common::EVENT_RTL) {
				return false;
			}
		}
		nDelay = _relDelay - _system->getMillis();
		if (nDelay < 0)
			nDelay = 0;
		else if (nDelay > 20)
			nDelay = 20;

		_system->delayMillis(nDelay);

		_skyScreen->processSequence();
		_system->updateScreen();
	} while (nDelay == 20);

	return true;
}

void MidiTests::waitForMusicToPlay(MidiParser *parser) {
	Common::EventManager *eventMan = g_system->getEventManager();
	bool quitLoop = false;
	Common::Event event;

	CursorMan.showMouse(true);
	while (!quitLoop) {
		while (eventMan->pollEvent(event)) {
			// Quit if explicitly requested!
			if (Engine::shouldQuit()) {
				return;
			}

			if (event.type == Common::EVENT_LBUTTONDOWN || event.type == Common::EVENT_RBUTTONDOWN) {
				quitLoop = true;
			} else {
				Testsuite::writeOnScreen("Playing Midi Music, Click to end", Common::Point(0, 100));
				if (!parser->isPlaying()) {
					quitLoop = true;
				}
			}
		}
	}
	CursorMan.showMouse(false);
	return;
}

void MoviePlayer::handleNextFrame() {
	Common::Event event;
	Common::EventManager *eventMan = _vm->_system->getEventManager();
	while (eventMan->pollEvent(event)) {
		switch (event.type) {
		case Common::EVENT_KEYDOWN:
			if (event.kbd.keycode == Common::KEYCODE_ESCAPE) {
				_leftButtonDown = true;
				_rightButtonDown = true;
			} else if (event.kbd.keycode == Common::KEYCODE_PAUSE) {
				_vm->pause();
			}
			break;
		case Common::EVENT_LBUTTONDOWN:
			_leftButtonDown = true;
			break;
		case Common::EVENT_RBUTTONDOWN:
			_rightButtonDown = true;
			break;
		case Common::EVENT_LBUTTONUP:
			_leftButtonDown = false;
			break;
		case Common::EVENT_RBUTTONUP:
			_rightButtonDown = false;
			break;
		default:
			break;
		}
	}

	if (_leftButtonDown && _rightButtonDown && !_vm->getBitFlag(41)) {
		_skipMovie = true;
		_mixer->stopHandle(_bgSound);
	}
}

void NeverhoodEngine::mainLoop() {
	uint32 nextFrameTime = 0;
	while (!shouldQuit()) {
		Common::Event event;
		Common::EventManager *eventMan = _system->getEventManager();
		while (eventMan->pollEvent(event)) {
			switch (event.type) {
			case Common::EVENT_KEYDOWN:
				if (event.kbd.hasFlags(Common::KBD_CTRL) && event.kbd.keycode == Common::KEYCODE_d) {
					// Open debugger console
					_console->attach();
					continue;
				}
				_gameModule->handleKeyDown(event.kbd.keycode);
				_gameModule->handleAsciiKey(event.kbd.ascii);
				break;
			case Common::EVENT_KEYUP:
				break;
			case Common::EVENT_MOUSEMOVE:
				_mouseX = event.mouse.x;
				_mouseY = event.mouse.y;
				_gameModule->handleMouseMove(event.mouse.x, event.mouse.y);
				break;
			case Common::EVENT_LBUTTONDOWN:
			case Common::EVENT_RBUTTONDOWN:
				_gameModule->handleMouseDown(event.mouse.x, event.mouse.y);
				break;
			case Common::EVENT_LBUTTONUP:
			case Common::EVENT_RBUTTONUP:
				_gameModule->handleMouseUp(event.mouse.x, event.mouse.y);
				break;
			case Common::EVENT_WHEELUP:
				_gameModule->handleWheelUp();
				break;
			case Common::EVENT_WHEELDOWN:
				_gameModule->handleWheelDown();
				break;
			default:
				break;
			}
		}
		if (_system->getMillis() >= nextFrameTime) {
			_gameModule->checkRequests();
			_gameModule->handleUpdate();
			_gameModule->draw();
			_console->onFrame();
			_screen->update();
			if (_updateSound)
				_soundMan->update();
			nextFrameTime = _screen->getNextFrameTime();
		};

		_audioResourceMan->updateMusic();

		_system->updateScreen();
		_system->delayMillis(10);
	}
}

void Journal::use() {
    BobSlot *joe = _vm->graphics()->bob(0);
    _prevJoeX = joe->x;
    _prevJoeY = joe->y;

    _panelMode = PM_NORMAL;
    _system = g_system;

    _panelTextCount = 0;
    memset(_panelTextY, 0, sizeof(_panelTextY));
    memset(&_textField, 0, sizeof(_textField));

    memset(_saveDescriptions, 0, sizeof(_saveDescriptions));
    _vm->findGameStateDescriptions(_saveDescriptions);

    setup();
    redraw();
    update();
    _vm->display()->palFadeIn(ROOM_JOURNAL);

    _quitMode = QM_LOOP;
    while (_quitMode == QM_LOOP) {
        Common::Event event;
        Common::EventManager *eventMan = _system->getEventManager();
        while (eventMan->pollEvent(event)) {
            switch (event.type) {
            case Common::EVENT_KEYDOWN:
                handleKeyDown(event.kbd.ascii, event.kbd.keycode);
                break;
            case Common::EVENT_LBUTTONDOWN:
                handleMouseDown(event.mouse.x, event.mouse.y);
                break;
            case Common::EVENT_WHEELUP:
                handleMouseWheel(-1);
                break;
            case Common::EVENT_WHEELDOWN:
                handleMouseWheel(1);
                break;
            case Common::EVENT_RTL:
            case Common::EVENT_QUIT:
                return;
            default:
                break;
            }
        }
        _system->delayMillis(20);
        _system->updateScreen();
    }

    _vm->writeOptionSettings();

    _vm->display()->clearTexts(0, GAME_SCREEN_HEIGHT - 1);
    _vm->graphics()->putCameraOnBob(0);
    if (_quitMode == QM_CONTINUE) {
        continueGame();
    }
}

void MadeEngine::handleEvents() {

	Common::Event event;
	Common::EventManager *eventMan = _system->getEventManager();

	// NOTE: Don't reset _eventNum to 0 here or no events will get through to the scripts.

	while (eventMan->pollEvent(event)) {
		switch (event.type) {

		case Common::EVENT_MOUSEMOVE:
			_eventMouseX = event.mouse.x;
			_eventMouseY = event.mouse.y;
			break;

		case Common::EVENT_LBUTTONDOWN:
			_eventNum = 2;
			break;

		case Common::EVENT_LBUTTONUP:
			_eventNum = 1;
			break;

		case Common::EVENT_RBUTTONDOWN:
			_eventNum = 4;
			break;

		case Common::EVENT_RBUTTONUP:
			_eventNum = 3;
			break;

		case Common::EVENT_KEYDOWN:
			_eventKey = event.kbd.ascii;
			// For unknown reasons, the game accepts ASCII code
			// 9 as backspace
			if (_eventKey == Common::KEYCODE_BACKSPACE)
				_eventKey = 9;
			_eventNum = 5;
			break;

		default:
			break;

		}
	}

	AudioCD.updateCD();

}

void manageEvents() {
	Common::EventManager *eventMan = g_system->getEventManager();

	uint32 nextFrame = g_system->getMillis() + g_cine->getTimerDelay();
	do {
		Common::Event event;
		while (eventMan->pollEvent(event)) {
			processEvent(event);
		}
		g_system->updateScreen();
		g_system->delayMillis(20);
	} while (g_system->getMillis() < nextFrame);

	mouseData.left = mouseLeft;
	mouseData.right = mouseRight;
}

void NeverhoodEngine::mainLoop() {
	uint32 nextFrameTime = 0;
	while (!shouldQuit()) {
		Common::Event event;
		Common::EventManager *eventMan = _system->getEventManager();
		while (eventMan->pollEvent(event)) {
			switch (event.type) {
			case Common::EVENT_KEYDOWN:
				_gameModule->handleKeyDown(event.kbd.keycode);
				_gameModule->handleAsciiKey(event.kbd.ascii);
				break;
			case Common::EVENT_KEYUP:
				break;
			case Common::EVENT_MOUSEMOVE:
				_mouseX = event.mouse.x;
				_mouseY = event.mouse.y;
				_gameModule->handleMouseMove(event.mouse.x, event.mouse.y);
				break;
			case Common::EVENT_LBUTTONDOWN:
			case Common::EVENT_RBUTTONDOWN:
				_gameModule->handleMouseDown(event.mouse.x, event.mouse.y);
				break;
			case Common::EVENT_LBUTTONUP:
			case Common::EVENT_RBUTTONUP:
				_gameModule->handleMouseUp(event.mouse.x, event.mouse.y);
				break;
			case Common::EVENT_QUIT:
				_system->quit();
				break;
			default:
				break;
			}
		}
		if (_system->getMillis() >= nextFrameTime) {
			_gameModule->checkRequests();
			_gameModule->handleUpdate();
			_gameModule->draw();
			_screen->update();
			nextFrameTime = _screen->getNextFrameTime();
		};
		_soundMan->update();
		_audioResourceMan->updateMusic();
		_system->updateScreen();
		_system->delayMillis(10);
	}
}

void VirtualKeyboardGUI::mainLoop() {
	Common::EventManager *eventMan = _system->getEventManager();

	while (_displaying) {
		if (_kbd->_keyQueue.hasStringChanged())
			updateDisplay();
		animateCaret();
		animateCursor();
		redraw();
		_system->updateScreen();
		Common::Event event;
		while (eventMan->pollEvent(event)) {
			switch (event.type) {
			case Common::EVENT_LBUTTONDOWN:
				if (_kbdBound.contains(event.mouse)) {
					_kbd->handleMouseDown(event.mouse.x - _kbdBound.left,
										  event.mouse.y - _kbdBound.top);
				}
				break;
			case Common::EVENT_LBUTTONUP:
				if (_kbdBound.contains(event.mouse)) {
					_kbd->handleMouseUp(event.mouse.x - _kbdBound.left,
										event.mouse.y - _kbdBound.top);
				}
				break;
			case Common::EVENT_MOUSEMOVE:
				if (_drag)
					move(event.mouse.x - _dragPoint.x,
						event.mouse.y - _dragPoint.y);
				break;
			case Common::EVENT_SCREEN_CHANGED:
				screenChanged();
				break;
			case Common::EVENT_QUIT:
				_system->quit();
				return;
			default:
				break;
			}
		}
		// Delay for a moment
		_system->delayMillis(10);
	}
}

// TODO: this method will probably go away and be integrated in the main loop
void Animation::play() {
	Common::EventManager *eventMan = g_system->getEventManager();
	while (!hasEnded() && !Engine::shouldQuit()) {
		process();

		if (_changed) {
			// Create a temporary surface to merge the overlay with the background
			Graphics::Surface *s = new Graphics::Surface;
			s->create(640, 480, Graphics::PixelFormat(2, 5, 5, 5, 0, 10, 5, 0, 0));

			draw(s);

			// XXX: Update the screen
			g_system->copyRectToScreen(s->getPixels(), s->pitch, 0, 0, s->w, s->h);

			// Free the temporary surface
			s->free();
			delete s;

			_changed = false;
		}

		g_system->updateScreen();

		//FIXME: implement subtitles
		g_system->delayMillis(20);

		// Handle right-click to interrupt animations
		Common::Event ev = Common::Event();
		while (eventMan->pollEvent(ev)) {
			if (ev.type == Common::EVENT_RBUTTONUP) {
				// Stop audio
				if (_audio)
					_audio->finish();

				// TODO start LNK file sound?
				return;
			}
		}
	}
}

bool MoviePlayer::handleInput() {
	Common::Event event;
	Common::EventManager *eventMan = g_system->getEventManager();
	while (eventMan->pollEvent(event)) {
		switch (event.type) {
		case Common::EVENT_KEYDOWN:
			if (event.kbd.keycode == Common::KEYCODE_ESCAPE)
				return false;
			break;
		case Common::EVENT_LBUTTONDOWN:
		case Common::EVENT_RBUTTONDOWN:
			return false;
		case Common::EVENT_QUIT:
			_vm->quitGame();
			return false;
		default:
			break;
		}
	}
	return !_vm->shouldQuit();
}