source/enemy/npc.cpp

@@ -435,7 +435,7 @@ CNpc::NPC_DATA CNpc::m_data[NPC_UNIT_TYPE_MAX] =
 
 void CNpc::init()
 {
-	m_type = NPC_IRON_DOGFISH;
+	m_type = NPC_SKULL_STOMPER;
 
 	m_heading = m_fireHeading = 0;
 	m_movementTimer = 0;
@@ -471,7 +471,7 @@ void CNpc::init()
 
 			m_npcPath.addWaypoint( newPos );
 
-			/*newPos.vx = 500;
+			newPos.vx = 500;
 			newPos.vy = 100;
 
 			m_npcPath.addWaypoint( newPos );
@@ -479,9 +479,9 @@ void CNpc::init()
 			newPos.vx = 100;
 			newPos.vy = 100;
 
-			m_npcPath.addWaypoint( newPos );*/
+			m_npcPath.addWaypoint( newPos );
 
-			m_npcPath.setPathType( REPEATING_PATH );
+			m_npcPath.setPathType( PONG_PATH );
 
 			break;
 		}
@@ -554,6 +554,7 @@ void CNpc::init()
 
 void CNpc::shutdown()
 {
+	m_npcPath.removeAllWaypoints();
 }
 
 
@@ -832,7 +833,7 @@ bool CNpc::processSensor()
 						if ( xDistSqr + yDistSqr < 40000 )
 						{
 							m_controlFunc = NPC_CONTROL_CLOSE;
-							m_npcPath.currentWaypoint = 0;
+							m_extendDir = EXTEND_DOWN;
 
 							return( true );
 						}

source/enemy/npcpath.cpp

@@ -37,27 +37,72 @@ bool CNpcWaypoint::isPointNear( DVECTOR testPos, s32 *xDist, s32 *yDist )
 
 void CNpcPath::initPath()
 {
-	int loop;
-
-	for ( loop = 0 ; loop < NPC_MAX_WAYPOINTS ; loop++ )
-	{
-		waypoint[loop].pos.vx = 0;
-		waypoint[loop].pos.vy = 0;
-	}
-
+	waypoint = NULL;
 	pathType = SINGLE_USE_PATH;
-	currentWaypoint = lastWaypoint = 0;
+	currentWaypoint = NULL;
 	waypointCount = 0;
 	reversePath = false;
 }
 
+void CNpcPath::resetPath()
+{
+	currentWaypoint = NULL;
+}
+
 void CNpcPath::addWaypoint( DVECTOR newPos )
 {
-	if ( waypointCount < NPC_MAX_WAYPOINTS )
+	CNpcWaypoint *testWaypoint;
+	CNpcWaypoint *newWaypoint;
+
+	testWaypoint = this->waypoint;
+
+	if ( testWaypoint )
 	{
-		waypoint[waypointCount].pos = newPos;
+		// find end of path
+
+		while ( testWaypoint->nextWaypoint )
+		{
+			testWaypoint = testWaypoint->nextWaypoint;
+		}
+
+		newWaypoint = new( "waypoint" ) CNpcWaypoint;
+		newWaypoint->pos = newPos;
+		newWaypoint->nextWaypoint = NULL;
+		newWaypoint->prevWaypoint = testWaypoint;
+
+		testWaypoint->nextWaypoint = newWaypoint;
 		waypointCount++;
 	}
+	else
+	{
+		// no waypoints exist in this path, create
+
+		newWaypoint = new( "waypoint" ) CNpcWaypoint;
+		newWaypoint->pos = newPos;
+		newWaypoint->nextWaypoint = NULL;
+		newWaypoint->prevWaypoint = NULL;
+
+		this->waypoint = newWaypoint;
+		waypointCount++;
+	}
+}
+
+void CNpcPath::removeAllWaypoints()
+{
+	CNpcWaypoint *testWaypoint;
+	CNpcWaypoint *lastWaypoint;
+
+	testWaypoint = this->waypoint;
+
+	while ( testWaypoint )
+	{
+		lastWaypoint = testWaypoint;
+		testWaypoint = testWaypoint->nextWaypoint;
+
+		delete lastWaypoint;
+	}
+
+	this->waypoint = NULL;
 }
 
 void CNpcPath::setPathType( NPC_PATH_TYPE newPathType )
@@ -69,9 +114,9 @@ bool CNpcPath::incPath()
 {
 	if ( !reversePath )
 	{
-		if ( currentWaypoint < waypointCount - 1 )
+		if ( currentWaypoint->nextWaypoint )
 		{
-			currentWaypoint++;
+			currentWaypoint = currentWaypoint->nextWaypoint;
 		}
 		else
 		{
@@ -85,7 +130,7 @@ bool CNpcPath::incPath()
 				case REPEATING_PATH:
 					// go back to start
 
-					currentWaypoint = 0;
+					currentWaypoint = this->waypoint;
 
 					break;
 
@@ -93,7 +138,11 @@ bool CNpcPath::incPath()
 					// reverse path
 
 					reversePath = !reversePath;
-					currentWaypoint--;
+
+					if ( currentWaypoint->prevWaypoint )
+					{
+						currentWaypoint = currentWaypoint->prevWaypoint;
+					}
 
 					break;
 			}
@@ -103,14 +152,18 @@ bool CNpcPath::incPath()
 	{
 		// must be pong path if reversed
 
-		if ( currentWaypoint > 0 )
+		if ( currentWaypoint->prevWaypoint )
 		{
-			currentWaypoint--;
+			currentWaypoint = currentWaypoint->prevWaypoint;
 		}
 		else
 		{
 			reversePath = !reversePath;
-			currentWaypoint++;
+
+			if ( currentWaypoint->nextWaypoint )
+			{
+				currentWaypoint = currentWaypoint->nextWaypoint;
+			}
 		}
 	}
 
@@ -119,17 +172,29 @@ bool CNpcPath::incPath()
 
 bool CNpcPath::getDistToNextWaypoint( DVECTOR currentPos, s32 *distX, s32 *distY )
 {
-	return( waypoint[currentWaypoint].isPointNear( currentPos, distX, distY ) );
+	return( currentWaypoint->isPointNear( currentPos, distX, distY ) );
 }
 
 s32 CNpcPath::think( DVECTOR currentPos, bool *pathComplete, bool *waypointChange )
 {
+	if ( !this->waypoint )
+	{
+		return( 0 );
+	}
+
+	if ( !currentWaypoint )
+	{
+		// if no currentWaypoint set, start it off
+
+		currentWaypoint = this->waypoint;
+	}
+
 	s32 xDist, yDist;
 
 	*pathComplete = false;
 	*waypointChange = false;
 
-	if ( waypoint[currentWaypoint].isPointNear( currentPos, &xDist, &yDist ) )
+	if ( currentWaypoint->isPointNear( currentPos, &xDist, &yDist ) )
 	{
 		*pathComplete = incPath();
 		*waypointChange = true;

source/enemy/npcpath.h

@@ -20,6 +20,8 @@ class CNpcWaypoint
 {
 public:
 	DVECTOR	pos;
+	CNpcWaypoint *nextWaypoint;
+	CNpcWaypoint *prevWaypoint;
 
 	bool	isPointNear( DVECTOR testPos, s32 *xDist, s32 *yDist );
 };
@@ -33,25 +35,21 @@ enum NPC_PATH_TYPE
 
 class CNpcPath
 {
-	enum
-	{
-		NPC_MAX_WAYPOINTS = 4,
-	};
-
 private:
-	CNpcWaypoint	waypoint[NPC_MAX_WAYPOINTS];
+	CNpcWaypoint	*waypoint;
 	NPC_PATH_TYPE	pathType;
 	u8				waypointCount;
-	u8				lastWaypoint;
 	bool			reversePath;
 
 public:
-	u8				currentWaypoint;
+	CNpcWaypoint	*currentWaypoint;
 
 	void			initPath();
 	void			addWaypoint( DVECTOR newPos );
+	void			removeAllWaypoints();
 	void			setPathType( NPC_PATH_TYPE newPathType );
 	bool			incPath();
+	void			resetPath();
 	s32				think( DVECTOR currentPos, bool *pathComplete, bool *waypointChange );
 	bool			getDistToNextWaypoint( DVECTOR currentPos, s32 *distX, s32 *distY );
 };

source/enemy/nsstomp.cpp

@@ -38,27 +38,44 @@ void CNpc::processCloseSkullStomperAttack( int _frames )
 		s16 headingToTarget = m_npcPath.think( Pos, &pathComplete, &waypointChange );
 		s32 moveX, moveY;
 
-		if ( waypointChange && !pathComplete )
+		if ( waypointChange )
 		{
+			if ( !pathComplete )
+			{
+				// pause and change direction
+
 				m_timerTimer = GameState::getOneSecondInFrames();
+				m_extendDir = EXTEND_UP;
+
+				return;
 			}
-		else
-		{
+		}
+
 		if ( pathComplete )
 		{
 			m_controlFunc = NPC_CONTROL_MOVEMENT;
 			m_timerFunc = NPC_TIMER_ATTACK_DONE;
 			m_timerTimer = GameState::getOneSecondInFrames();
 			m_sensorFunc = NPC_SENSOR_NONE;
+			m_npcPath.resetPath();
 		}
 		else
 		{
-				if ( m_npcPath.currentWaypoint == 0 )
-				{
+			s32 preShiftX;
+			s32 preShiftY;
+				
 			m_heading = headingToTarget;
 
-					s32 preShiftX = _frames * 8 * rcos( m_heading );
-					s32 preShiftY = _frames * 8 * rsin( m_heading );
+			if ( m_extendDir == EXTEND_DOWN )
+			{
+				preShiftX = _frames * 8 * rcos( m_heading );
+				preShiftY = _frames * 8 * rsin( m_heading );
+			}
+			else
+			{
+				preShiftX = _frames * 2 * rcos( m_heading );
+				preShiftY = _frames * 2 * rsin( m_heading );
+			}
 
 			moveX = preShiftX >> 12;
 			if ( !moveX && preShiftX )
@@ -75,29 +92,5 @@ void CNpc::processCloseSkullStomperAttack( int _frames )
 			Pos.vx += moveX;
 			Pos.vy += moveY;
 		}
-				else
-				{
-					m_heading = headingToTarget;
-
-					s32 preShiftX = _frames * 2 * rcos( m_heading );
-					s32 preShiftY = _frames * 2 * rsin( m_heading );
-
-					moveX = preShiftX >> 12;
-					if ( !moveX && preShiftX )
-					{
-						moveX = preShiftX / abs( preShiftX );
-					}
-
-					moveY = preShiftY >> 12;
-					if ( !moveY && preShiftY )
-					{
-						moveY = preShiftY / abs( preShiftY );
-					}
-
-					Pos.vx += moveX;
-					Pos.vy += moveY;
-				}
-			}
-		}
 	}
 }