PEGASUS: Implement some more neighborhood code

4 files changed, 182 insertions, 17 deletions

diff --git a/engines/pegasus/neighborhood/hotspot.cpp b/engines/pegasus/neighborhood/hotspotinfo.cpp
index 16af1a6d48..1cd241612c 100755
--- a/engines/pegasus/neighborhood/hotspot.cpp
+++ b/engines/pegasus/neighborhood/hotspotinfo.cpp
@@ -27,11 +27,11 @@
 #include "common/stream.h"
 #include "common/textconsole.h"
 
-#include "pegasus/neighborhood/hotspot.h"
+#include "pegasus/neighborhood/hotspotinfo.h"
 
 namespace Pegasus {
 
-void HotspotTable::loadFromStream(Common::SeekableReadStream *stream) {
+void HotspotInfoTable::loadFromStream(Common::SeekableReadStream *stream) {
 	uint32 count = stream->readUint32BE();
 	_entries.resize(count);
 
@@ -50,11 +50,11 @@ void HotspotTable::loadFromStream(Common::SeekableReadStream *stream) {
 	}
 }
 
-void HotspotTable::clear() {
+void HotspotInfoTable::clear() {
 	_entries.clear();
 }
 
-HotspotTable::Entry HotspotTable::findEntry(tHotSpotID hotspot) {
+HotspotInfoTable::Entry HotspotInfoTable::findEntry(tHotSpotID hotspot) {
 	for (uint32 i = 0; i < _entries.size(); i++)
 		if (_entries[i].hotspot == hotspot)
 			return _entries[i];
diff --git a/engines/pegasus/neighborhood/hotspot.h b/engines/pegasus/neighborhood/hotspotinfo.h
index ea7f3bbeea..3199a51508 100755
--- a/engines/pegasus/neighborhood/hotspot.h
+++ b/engines/pegasus/neighborhood/hotspotinfo.h
@@ -23,8 +23,8 @@
  *
  */
 
-#ifndef PEGASUS_NEIGHBORHOOD_HOTSPOT_H
-#define PEGASUS_NEIGHBORHOOD_HOTSPOT_H
+#ifndef PEGASUS_NEIGHBORHOOD_HOTSPOTINFO_H
+#define PEGASUS_NEIGHBORHOOD_HOTSPOTINFO_H
 
 #include "common/array.h"
 #include "common/endian.h"
@@ -37,10 +37,10 @@ namespace Common {
 
 namespace Pegasus {
 
-class HotspotTable {
+class HotspotInfoTable {
 public:
-	HotspotTable() {}
-	~HotspotTable() {}
+	HotspotInfoTable() {}
+	~HotspotInfoTable() {}
 
 	static const uint32 getResTag() { return MKTAG('H', 'S', 'I', 'n'); }
 
diff --git a/engines/pegasus/neighborhood/neighborhood.cpp b/engines/pegasus/neighborhood/neighborhood.cpp
index 291c0a97d1..1197c65b98 100644
--- a/engines/pegasus/neighborhood/neighborhood.cpp
+++ b/engines/pegasus/neighborhood/neighborhood.cpp
@@ -27,11 +27,14 @@
 #include "common/stream.h"
 
 #include "pegasus/pegasus.h"
+#include "pegasus/game_shell/CGameState.h"
 #include "pegasus/neighborhood/neighborhood.h"
 
 namespace Pegasus {
 
-Neighborhood::Neighborhood(PegasusEngine *vm, const Common::String &resName) : _vm(vm), _resName(resName) {
+Neighborhood::Neighborhood(PegasusEngine *vm, const Common::String &resName, tNeighborhoodID id) : _vm(vm), _resName(resName) {
+	CGameState::SetOpenDoorLocation(kNoRoomID, kNoDirection);
+	_currentAlternate = 0;
 }
 
 Neighborhood::~Neighborhood() {
@@ -58,10 +61,10 @@ void Neighborhood::init() {
 	_extraTable.loadFromStream(stream);
 	delete stream;
 
-	stream = _vm->_resFork->getResource(_hotspotTable.getResTag(), _resName);
+	stream = _vm->_resFork->getResource(_hotspotInfoTable.getResTag(), _resName);
 	if (!stream)
-		error("Failed to load hotspots");
-	_hotspotTable.loadFromStream(stream);
+		error("Failed to load hotspot info");
+	_hotspotInfoTable.loadFromStream(stream);
 	delete stream;
 
 	stream = _vm->_resFork->getResource(_spotTable.getResTag(), _resName);
@@ -91,4 +94,133 @@ void Neighborhood::init() {
 	// TODO: AI, movies, notifications, buncha other stuff
 }
 
+void Neighborhood::start() {
+	CGameState::SetCurrentRoom(CGameState::GetLastRoom());
+	CGameState::SetCurrentDirection(CGameState::GetLastDirection());
+	arriveAt(CGameState::GetNextRoom(), CGameState::GetNextDirection());
+}
+
+void Neighborhood::arriveAt(tRoomID room, tDirectionConstant direction) {
+	// TODO
+}
+
+//	These functions can be overridden to tweak the exact frames used.
+
+void Neighborhood::getExitEntry(const tRoomID room, const tDirectionConstant direction, ExitTable::Entry &entry) {
+	entry = _exitTable.findEntry(room, direction, _currentAlternate);
+
+	if (entry.isEmpty())
+		entry = _exitTable.findEntry(room, direction, kNoAlternateID);
+}
+
+TimeValue Neighborhood::getViewTime(const tRoomID room, const tDirectionConstant direction) {
+	if (CGameState::GetOpenDoorRoom() == room && CGameState::GetOpenDoorDirection() == direction) {
+		// If we get here, the door entry for this location must exist.
+		DoorTable::Entry doorEntry = _doorTable.findEntry(room, direction, _currentAlternate);
+
+		if (doorEntry.isEmpty())
+			doorEntry = _doorTable.findEntry(room, direction, kNoAlternateID);
+
+		return doorEntry.movieEnd - 1;
+	}
+
+	ViewTable::Entry viewEntry = _viewTable.findEntry(room, direction, _currentAlternate);
+
+	if (viewEntry.isEmpty())
+		viewEntry = _viewTable.findEntry(room, direction, kNoAlternateID);
+
+	return viewEntry.time;
+}
+
+void Neighborhood::getDoorEntry(const tRoomID room, const tDirectionConstant direction, DoorTable::Entry &doorEntry) {
+	doorEntry = _doorTable.findEntry(room, direction, _currentAlternate);
+
+	if (doorEntry.isEmpty())
+		doorEntry = _doorTable.findEntry(room, direction, kNoAlternateID);
+}
+
+tDirectionConstant Neighborhood::getTurnEntry(const tRoomID room, const tDirectionConstant direction, const tTurnDirection turn) {
+	TurnTable::Entry turnEntry = _turnTable.findEntry(room, direction, turn, _currentAlternate);
+
+	if (turnEntry.isEmpty())
+		turnEntry = _turnTable.findEntry(room, direction, turn, kNoAlternateID);
+
+	return turnEntry.turnDirection;
+}
+
+void Neighborhood::findSpotEntry(const tRoomID room, const tDirectionConstant direction, tSpotFlags flags, SpotTable::Entry &spotEntry) {
+	spotEntry = _spotTable.findEntry(room, direction, flags, _currentAlternate);
+
+	if (spotEntry.isEmpty())
+		spotEntry = _spotTable.findEntry(room, direction, flags, kNoAlternateID);
+}
+
+void Neighborhood::getZoomEntry(const tHotSpotID id, ZoomTable::Entry &zoomEntry) {
+	zoomEntry = _zoomTable.findEntry(id);
+}
+
+void Neighborhood::getHotspotEntry(const tHotSpotID id, HotspotInfoTable::Entry &hotspotEntry) {
+	hotspotEntry = _hotspotInfoTable.findEntry(id);
+}
+
+void Neighborhood::getExtraEntry(const uint32 id, ExtraTable::Entry &extraEntry) {
+	extraEntry = _extraTable.findEntry(id);
+}
+
+/////////////////////////////////////////////
+//
+//	"Can" functions: Called to see whether or not a user is allowed to do something
+
+tCanMoveForwardReason Neighborhood::canMoveForward(ExitTable::Entry &entry) {
+	DoorTable::Entry door;
+	
+	getExitEntry(CGameState::GetCurrentRoom(), CGameState::GetCurrentDirection(), entry);
+	getDoorEntry(CGameState::GetCurrentRoom(), CGameState::GetCurrentDirection(), door);
+
+	//	Fixed this so that doors that don't lead anywhere can be opened, but not walked
+	//	through.
+	if (door.flags & kDoorPresentMask) {
+		if (CGameState::IsCurrentDoorOpen()) {
+			if (entry.exitRoom == kNoRoomID)
+				return kCantMoveBlocked;
+			else
+				return kCanMoveForward;
+		} else if (door.flags & kDoorLockedMask) {
+			return kCantMoveDoorLocked;
+		} else {
+			return kCantMoveDoorClosed;
+		}
+	} else if (entry.exitRoom == kNoRoomID) {
+		return kCantMoveBlocked;
+	}
+
+	return kCanMoveForward;
+}
+
+tCanTurnReason Neighborhood::canTurn(tTurnDirection turn, tDirectionConstant &nextDir) {
+	nextDir = getTurnEntry(CGameState::GetCurrentRoom(), CGameState::GetCurrentDirection(), turn);
+
+	if (nextDir == kNoDirection)
+		return kCantTurnNoTurn;
+
+	return kCanTurn;
+}
+
+tCanOpenDoorReason Neighborhood::canOpenDoor(DoorTable::Entry &entry) {
+	getDoorEntry(CGameState::GetCurrentRoom(), CGameState::GetCurrentDirection(), entry);
+
+	if (entry.flags & kDoorPresentMask) {
+		if (CGameState::IsCurrentDoorOpen())
+			return kCantOpenAlreadyOpen;
+
+		if (entry.flags & kDoorLockedMask)
+			return kCantOpenLocked;
+
+		return kCanOpenDoor;
+	}
+
+	return kCantOpenNoDoor;
+}
+
+
 } // End of namespace Pegasus
diff --git a/engines/pegasus/neighborhood/neighborhood.h b/engines/pegasus/neighborhood/neighborhood.h
index d70628e0d5..0b8be864e1 100644
--- a/engines/pegasus/neighborhood/neighborhood.h
+++ b/engines/pegasus/neighborhood/neighborhood.h
@@ -31,7 +31,7 @@
 #include "pegasus/neighborhood/door.h"
 #include "pegasus/neighborhood/exit.h"
 #include "pegasus/neighborhood/extra.h"
-#include "pegasus/neighborhood/hotspot.h"
+#include "pegasus/neighborhood/hotspotinfo.h"
 #include "pegasus/neighborhood/spot.h"
 #include "pegasus/neighborhood/turn.h"
 #include "pegasus/neighborhood/view.h"
@@ -41,25 +41,58 @@ namespace Pegasus {
 
 class PegasusEngine;
 
+// Pegasus Prime neighborhood id's
+const tNeighborhoodID kCaldoriaID = 0;
+const tNeighborhoodID kFullTSAID = 1;
+const tNeighborhoodID kFinalTSAID = 2;
+const tNeighborhoodID kTinyTSAID = 3;
+const tNeighborhoodID kPrehistoricID = 4;
+const tNeighborhoodID kMarsID = 5;
+const tNeighborhoodID kWSCID = 6;
+const tNeighborhoodID kNoradAlphaID = 7;
+const tNeighborhoodID kNoradDeltaID = 8;
+//	The sub chase is not really a neighborhood, but we define a constant that is used
+//	to allow an easy transition out of Norad Alpha.
+const tNeighborhoodID kNoradSubChaseID = 1000;
+
 class Neighborhood {
 public:
-	Neighborhood(PegasusEngine *vm, const Common::String &resName);
+	Neighborhood(PegasusEngine *vm, const Common::String &resName, tNeighborhoodID id);
 	virtual ~Neighborhood();
 
 	virtual void init();
+	void start();
+
+	void arriveAt(tRoomID room, tDirectionConstant direction);
+
+	virtual void getExitEntry(const tRoomID room, const tDirectionConstant direction, ExitTable::Entry &entry);
+	virtual TimeValue getViewTime(const tRoomID room, const tDirectionConstant direction);
+	virtual void getDoorEntry(const tRoomID room, const tDirectionConstant direction, DoorTable::Entry &doorEntry);
+	virtual tDirectionConstant getTurnEntry(const tRoomID room, const tDirectionConstant direction, const tTurnDirection turn);
+	virtual void findSpotEntry(const tRoomID room, const tDirectionConstant direction, tSpotFlags flags, SpotTable::Entry &spotEntry);
+	virtual void getZoomEntry(const tHotSpotID id, ZoomTable::Entry &zoomEntry);
+	virtual void getHotspotEntry(const tHotSpotID id, HotspotInfoTable::Entry &hotspotEntry);
+	virtual void getExtraEntry(const uint32 id, ExtraTable::Entry &extraEntry);
 
-private:
+	tCanMoveForwardReason canMoveForward(ExitTable::Entry &entry);
+	tCanTurnReason canTurn(tTurnDirection turn, tDirectionConstant &nextDir);
+	tCanOpenDoorReason canOpenDoor(DoorTable::Entry &entry);
+
+protected:
 	PegasusEngine *_vm;
 	Common::String _resName;
+	tNeighborhoodID _neighborhoodID;
 
 	DoorTable _doorTable;
 	ExitTable _exitTable;
 	ExtraTable _extraTable;
-	HotspotTable _hotspotTable;
+	HotspotInfoTable _hotspotInfoTable;
 	SpotTable _spotTable;
 	TurnTable _turnTable;
 	ViewTable _viewTable;
 	ZoomTable _zoomTable;
+
+	tAlternateID _currentAlternate;
 };
 
 } // End of namespace Pegasus