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engines/titanic/game_state.cpp

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+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "titanic/game_state.h"
+#include "titanic/game_view.h"
+#include "titanic/events.h"
+#include "titanic/game_manager.h"
+#include "titanic/support/screen_manager.h"
+#include "titanic/titanic.h"
+
+namespace Titanic {
+
+bool CGameStateMovieList::empty() {
+	for (CGameStateMovieList::iterator i = begin(); i != end(); ) {
+		CMovie *movie = *i;
+
+		if (movie->isActive()) {
+			++i;
+		} else {
+			i = erase(i);
+		}
+	}
+
+	return Common::List<CMovie *>::empty();
+}
+
+/*------------------------------------------------------------------------*/
+
+CGameState::CGameState(CGameManager *gameManager) :
+		_gameManager(gameManager), _gameLocation(this), _passengerClass(NO_CLASS),
+		_priorClass(NO_CLASS), _mode(GSMODE_NONE), _seasonNum(SEASON_SUMMER),
+		_petActive(false), _soundMakerAllowed(false), _quitGame(false), _parrotMet(false),
+		_nodeChangeCtr(0), _nodeEnterTicks(0), _parrotResponseIndex(0) {
+}
+
+void CGameState::save(SimpleFile *file) const {
+	file->writeNumber(_petActive);
+	file->writeNumber(_passengerClass);
+	file->writeNumber(_priorClass);
+	file->writeNumber(_seasonNum);
+	file->writeNumber(_parrotMet);
+	file->writeNumber(_parrotResponseIndex);
+	_gameLocation.save(file);
+	file->writeNumber(_soundMakerAllowed);
+}
+
+void CGameState::load(SimpleFile *file) {
+	_petActive = file->readNumber() != 0;
+	_passengerClass = (PassengerClass)file->readNumber();
+	_priorClass = (PassengerClass)file->readNumber();
+	_seasonNum = (Season)file->readNumber();
+	_parrotMet = file->readNumber();
+	_parrotResponseIndex = file->readNumber();
+	_gameLocation.load(file);
+
+	_soundMakerAllowed = file->readNumber();
+	_nodeChangeCtr = 0;
+	_nodeEnterTicks = 0;
+}
+
+void CGameState::setMode(GameStateMode newMode) {
+	CScreenManager *sm = CScreenManager::_screenManagerPtr;
+
+	if (newMode == GSMODE_CUTSCENE && _mode != GSMODE_CUTSCENE) {
+		if (_gameManager)
+			_gameManager->lockInputHandler();
+
+		if (sm && sm->_mouseCursor)
+			sm->_mouseCursor->incBusyCount();
+
+	} else if (newMode != GSMODE_CUTSCENE && _mode == GSMODE_CUTSCENE) {
+		if (sm && sm->_mouseCursor)
+			sm->_mouseCursor->decBusyCount();
+
+		if (_gameManager)
+			_gameManager->unlockInputHandler();
+	}
+
+	_mode = newMode;
+}
+
+void CGameState::enterNode() {
+	++_nodeChangeCtr;
+	_nodeEnterTicks = g_vm->_events->getTicksCount();
+}
+
+void CGameState::enterView() {
+	CViewItem *oldView = _gameLocation.getView();
+	CViewItem *newView = _movieList._destView;
+	oldView->preEnterView(newView);
+
+	_gameManager->_gameView->setView(newView);
+	CRoomItem *oldRoom = oldView->findNode()->findRoom();
+	CRoomItem *newRoom = newView->findNode()->findRoom();
+	_gameManager->playClip(_movieList._movieClip, oldRoom, newRoom);
+
+	_gameManager->_sound.preEnterView(newView, newRoom != oldRoom);
+	_gameManager->decTransitions();
+	oldView->enterView(newView);
+
+	_movieList._destView = nullptr;
+	_movieList._movieClip = nullptr;
+}
+
+void CGameState::triggerLink(CLinkItem *link) {
+	changeView(link->getDestView(), link->getClip());
+}
+
+void CGameState::changeView(CViewItem *newView, CMovieClip *clip) {
+	// Signal the old view that it's being left
+	CViewItem *oldView = _gameLocation.getView();
+	oldView->leaveView(newView);
+
+	// If Shift key is pressed, skip showing the transition clip
+	if (g_vm->_events->isSpecialPressed(MK_SHIFT))
+		clip = nullptr;
+
+	if (_mode == GSMODE_CUTSCENE) {
+		_movieList._destView = newView;
+		_movieList._movieClip = clip;
+		_gameManager->incTransitions();
+	} else {
+		oldView->preEnterView(newView);
+		_gameManager->_gameView->setView(newView);
+		CRoomItem *oldRoom = oldView->findNode()->findRoom();
+		CRoomItem *newRoom = newView->findNode()->findRoom();
+
+		// If a transition clip is defined, play it
+		if (clip)
+			_gameManager->playClip(clip, oldRoom, newRoom);
+
+		// Final view change handling
+		_gameManager->_sound.preEnterView(newView, newRoom != oldRoom);
+		oldView->enterView(newView);
+	}
+}
+
+void CGameState::checkForViewChange() {
+	if (_mode == GSMODE_CUTSCENE && _movieList.empty()) {
+		setMode(GSMODE_INTERACTIVE);
+		if (_movieList._destView)
+			enterView();
+	}
+}
+
+void CGameState::addMovie(CMovie *movie) {
+	_movieList.push_back(movie);
+	setMode(GSMODE_CUTSCENE);
+}
+
+} // End of namespace Titanic