- Fix: wrong final destination displayed for travelling militia

- Fix: when ordering militia movement, data of another group's path can be erased
- Fix: a militia groups's path isn't always destroyed if the group is deleted
- Fix: unsafe pointer handling can result in a gamecrash when loading strategic AI data from a savegame
- Fix: traveltime calculations do not correctly handle waypoints, resulting in possible crashes

git-svn-id: https://ja2svn.mooo.com/source/ja2/trunk/GameSource/ja2_v1.13/Build@7876 3b4a5df2-a311-0410-b5c6-a8a6f20db521

Strategic/Strategic Movement.cpp

@@ -3185,6 +3185,7 @@ INT32 CalculateTravelTimeOfGroup( GROUP *pGroup )
 {
 	INT32 iDelta;
 	UINT32 uiEtaTime = 0;
+	INT32 i = 0;
 	WAYPOINT *pNode = NULL;
 	WAYPOINT pCurrent, pDest;
 	// check if valid group
@@ -3197,6 +3198,18 @@ INT32 CalculateTravelTimeOfGroup( GROUP *pGroup )
 	// set up next node
 	pNode = pGroup->pWaypoints;
 
+	// Flugente: start with the next waypoint we travel to, not the first one in the list
+	i = pGroup->ubNextWaypointID;
+	while ( i-- )
+	{
+		//Traverse through the waypoint list to the next waypoint ID
+		if( pNode );
+			pNode = pNode->next;
+	}
+
+	if ( !pNode )
+		return uiEtaTime;
+
 	// now get the delta in current sector and next sector
 	iDelta = ( INT32 )( SECTOR( pGroup->ubSectorX, pGroup->ubSectorY ) - SECTOR( pGroup->ubNextX, pGroup->ubNextY ) );