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diff --git a/engines/pegasus/neighborhood/prehistoric.h b/engines/pegasus/neighborhood/prehistoric.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 2
+ * 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, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ */
+
+#ifndef PEGASUS_NEIGHBORHOOD_PREHISTORIC_H
+#define PEGASUS_NEIGHBORHOOD_PREHISTORIC_H
+
+#include "pegasus/neighborhood/neighborhood.h"
+
+namespace Pegasus {
+
+const TimeScale kPrehistoricMovieScale = 600;
+const TimeScale kPrehistoricFramesPerSecond = 15;
+const TimeScale kPrehistoricFrameDuration = 40;
+
+//	Alternate IDs.
+
+const tAlternateID kAltPrehistoricNormal = 0;
+const tAlternateID kAltPrehistoricBridgeSet = 1;
+
+//	Room IDs.
+
+const tRoomID kPrehistoric01 = 0;
+const tRoomID kPrehistoric02 = 1;
+const tRoomID kPrehistoric03 = 2;
+const tRoomID kPrehistoric04 = 3;
+const tRoomID kPrehistoric05 = 4;
+const tRoomID kPrehistoric06 = 5;
+const tRoomID kPrehistoric07 = 6;
+const tRoomID kPrehistoric08 = 7;
+const tRoomID kPrehistoric09 = 8;
+const tRoomID kPrehistoric10 = 9;
+const tRoomID kPrehistoric11 = 10;
+const tRoomID kPrehistoric12 = 11;
+const tRoomID kPrehistoric13 = 12;
+const tRoomID kPrehistoric14 = 13;
+const tRoomID kPrehistoric15 = 14;
+const tRoomID kPrehistoric16 = 15;
+const tRoomID kPrehistoric17 = 16;
+const tRoomID kPrehistoric18 = 17;
+const tRoomID kPrehistoric19 = 18;
+const tRoomID kPrehistoric20 = 19;
+const tRoomID kPrehistoric21 = 20;
+const tRoomID kPrehistoric22 = 21;
+const tRoomID kPrehistoric22North = 22;
+const tRoomID kPrehistoric23 = 23;
+const tRoomID kPrehistoric24 = 24;
+const tRoomID kPrehistoric25 = 25;
+const tRoomID kPrehistoricDeath = 26;
+
+//	Hot Spot Activation IDs.
+
+const tHotSpotActivationID kActivationVaultClosed = 1;
+const tHotSpotActivationID kActivationVaultOpen = 2;
+
+//	Hot Spot IDs.
+
+const tHotSpotID kPre18EastSpotID = 5000;
+const tHotSpotID kPre22NorthSpotID = 5001;
+const tHotSpotID kPre22NorthOutSpotID = 5002;
+const tHotSpotID kPre22NorthBreakerSpotID = 5003;
+const tHotSpotID kPrehistoricKeyDropSpotID = 5004;
+const tHotSpotID kPrehistoricHistoricalLogSpotID = 5005;
+
+//	Extra sequence IDs.
+
+const tExtraID kPreArrivalFromTSA = 0;
+const tExtraID kPre18EastBridgeOut = 1;
+const tExtraID kPre18EastBridgeOn = 2;
+const tExtraID kPre18EastZoom = 3;
+const tExtraID kPre18EastZoomOut = 4;
+const tExtraID kPre22ThrowBreaker = 5;
+const tExtraID kPre25EastUnlockingVaultWithLog = 6;
+const tExtraID kPre25EastVaultOpenWithLog = 7;
+const tExtraID kPre25EastViewWithLog = 8;
+const tExtraID kPre25EastUnlockingVaultNoLog = 9;
+const tExtraID kPre25EastVaultOpenNoLog = 10;
+const tExtraID kPre25EastViewNoLog = 11;
+
+class PegasusEngine;
+
+class Prehistoric : public Neighborhood {
+public:
+	Prehistoric(InputHandler *, PegasusEngine *);
+	virtual ~Prehistoric() {}
+	
+	virtual uint16 getDateResID() const;
+	virtual void init();
+	
+	virtual void arriveAt(const tRoomID, const tDirectionConstant);
+	virtual void activateHotspots();
+	virtual void clickInHotspot(const Input &, const Hotspot *);
+	Common::String getBriefingMovie();
+	Common::String getEnvScanMovie();
+	uint getNumHints();
+	Common::String getHintMovie(uint);
+
+	Hotspot *getItemScreenSpot(Item *, DisplayElement *);
+	void dropItemIntoRoom(Item *, Hotspot *);
+	void pickedUpItem(Item *);
+
+	void start();
+
+	void bumpIntoWall();
+
+	void checkContinuePoint(const tRoomID, const tDirectionConstant);
+
+	bool canSolve();
+	void doSolve();
+
+protected:
+	enum {
+		kPrehistoricPrivateVaultOpenFlag,
+		kPrehistoricPrivateExtendedBridgeFlag,
+		kNumPrehistoricPrivateFlags
+	};
+
+	void setUpAIRules();
+	int16 getStaticCompassAngle(const tRoomID, const tDirectionConstant);
+	void getExitCompassMove(const ExitTable::Entry &, FaderMoveSpec &);
+	virtual void receiveNotification(Notification *, const tNotificationFlags);
+	void turnTo(const tDirectionConstant);
+	void zoomToVault();
+	TimeValue getViewTime(const tRoomID, const tDirectionConstant);
+	void findSpotEntry(const tRoomID, const tDirectionConstant, tSpotFlags, SpotTable::Entry &);
+
+	void loadAmbientLoops();
+	
+	FlagsArray<byte, kNumPrehistoricPrivateFlags> _privateFlags;
+
+	Common::String getNavMovieName();
+};
+
+} // End of namespace Pegasus
+
+#endif