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engines/pegasus/neighborhood/norad/pressuretracker.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.
+ *
+ * Additional copyright for this file:
+ * Copyright (C) 1995-1997 Presto Studios, Inc.
+ *
+ * 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 "pegasus/hotspot.h"
+#include "pegasus/pegasus.h"
+#include "pegasus/neighborhood/norad/pressuredoor.h"
+#include "pegasus/neighborhood/norad/pressuretracker.h"
+
+namespace Pegasus {
+
+PressureTracker::PressureTracker(PressureDoor *pressureDoor) {
+	_pressureDoor = pressureDoor;
+	_trackSpot = nullptr;
+	_trackTime = 0;
+	_trackButton = nullptr;
+}
+
+void PressureTracker::setTrackParameters(const Hotspot *trackSpot, Sprite *trackButton) {
+	_trackSpot = trackSpot;
+	_trackButton = trackButton;
+	_trackTime = 0;
+}
+
+void PressureTracker::activateHotspots() {
+	Tracker::activateHotspots();
+
+	if (_trackSpot)
+		g_allHotspots.activateOneHotspot(_trackSpot->getObjectID());
+}
+
+// For click-hold dragging.
+bool PressureTracker::stopTrackingInput(const Input &input) {
+	return !JMPPPInput::isPressingInput(input);
+}
+
+void PressureTracker::continueTracking(const Input &input) {
+	Common::Point where;
+	input.getInputLocation(where);
+
+	if (g_allHotspots.findHotspot(where) == _trackSpot) {
+		trackPressure();
+		_trackButton->setCurrentFrameIndex(1);
+	} else {
+		_trackButton->setCurrentFrameIndex(0);
+	}
+}
+
+void PressureTracker::startTracking(const Input &input) {
+	Tracker::startTracking(input);
+	trackPressure();
+}
+
+void PressureTracker::stopTracking(const Input &input) {
+	_trackButton->setCurrentFrameIndex(0);
+	_pressureDoor->stopChangingPressure();
+	Tracker::stopTracking(input);
+}
+
+void PressureTracker::trackPressure() {
+	if (g_system->getMillis() - _trackTime > kPressureDoorTrackInterval * 1000 / 60) {
+		_pressureDoor->incrementPressure(_trackSpot->getObjectID());
+		_trackTime = g_system->getMillis();
+	}
+}
+
+} // End of namespace Pegasus