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engines/pegasus/neighborhood/norad/pressuretracker.h

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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/>.
+ *
+ */
+
+#ifndef PEGASUS_NEIGHBORHOOD_NORAD_PRESSURETRACKER_H
+#define PEGASUS_NEIGHBORHOOD_NORAD_PRESSURETRACKER_H
+
+#include "pegasus/input.h"
+
+namespace Pegasus {
+
+// This class assumes that the globe movie is built at 15 frames per second with a
+// time scale of 600, yielding 40 time unit per frame.
+
+enum PressureTrackDirection {
+	kTrackPressureUp,
+	kTrackPressureDown
+};
+
+static const int kPressureDoorTrackInterval = 45;
+
+class PressureDoor;
+class Sprite;
+
+class PressureTracker : public Tracker {
+public:
+	PressureTracker(PressureDoor *);
+	~PressureTracker() override {}
+
+	void setTrackParameters(const Hotspot *, Sprite *);
+	void continueTracking(const Input &) override;
+	void startTracking(const Input &) override;
+	void stopTracking(const Input &) override;
+	void activateHotspots() override;
+	bool stopTrackingInput(const Input &) override;
+
+protected:
+	void trackPressure();
+
+	PressureDoor *_pressureDoor;
+	const Hotspot *_trackSpot;
+	Sprite *_trackButton;
+	long _trackTime;
+};
+
+} // End of namespace Pegasus
+
+#endif