source/enemy/npcpath.cpp

@@ -11,6 +11,10 @@
 
 ===========================================================================*/
 
+#ifndef __ENEMY_NCPPATH_H__
+#include "enemy\ncppath.h"
+#endif
+
 bool CNpcWaypoint::isPointNear( DVECTOR testPos )
 {
 	s32 xDistSqr, yDistSqr;
@@ -31,6 +35,22 @@ bool CNpcWaypoint::isPointNear( DVECTOR testPos )
 	}
 }
 
+void CNpcPath::initPath()
+{
+	int loop;
+
+	for ( loop = 0 ; loop < NPC_MAX_WAYPOINTS ; loop++ )
+	{
+		waypoint[loop].pos.vx = 0;
+		waypoint[loop].pox.vy = 0;
+	}
+
+	pathType = SINGLE_USE_PATH;
+	currentWaypoint = 0;
+	waypointCount = 0;
+	reversePath = false;
+}
+
 void CNpcPath::addWaypoint( DVECTOR newPos )
 {
 	if ( waypointCount < NPC_MAX_WAYPOINTS )
@@ -40,6 +60,71 @@ void CNpcPath::addWaypoint( DVECTOR newPos )
 	}
 }
 
-	void			setPathType( NPC_PATH_TYPE newPathType );
-	bool			incPath();
-bool CNpcPath::incPath
+void CNpcPath::setPathType( NPC_PATH_TYPE newPathType )
+{
+	pathType = newPathType;
+}
+
+bool CNpcPath::incPath()
+{
+	if ( !reversePath )
+	{
+		if ( currentWaypoint < waypointCount )
+		{
+			currentWaypoint++;
+		}
+		else
+		{
+			switch( pathType )
+			{
+				case SINGLE_USE_PATH:
+					// path is completed
+
+					return( true );
+
+				case REPEATING_PATH:
+					// go back to start
+
+					currentWaypoint = 0;
+
+					break;
+
+				case PONG_PATH:
+					// reverse path
+
+					reversePath = !reversePath;
+					currentWaypoint--;
+
+					break;
+			}
+		}
+	}
+	else
+	{
+		// must be pong path if reversed
+
+		if ( currentWaypoint > 0 )
+		{
+			currentWaypoint--;
+		}
+		else
+		{
+			reversePath = !reversePath;
+			currentWaypoint++;
+		}
+	}
+
+	return( false );
+}
+
+void CNpcPath::think( DVECTOR currentPos )
+{
+	CNpcWaypoint *currentWaypoint;
+
+	currentWaypoint = &waypoint[currentWaypoint]
+
+	if ( currentWaypoint->isPointNear( currentPos ) )
+	{
+		incPath();
+	}
+}