here's what I'm currently using (triggeraction under #CLIENTSIDE line)
NPC Code:
if (actionserverside) {
if (strequals(#p(0),fly)&&isonmap) {
setstring clientr.plane,#L,#v(playerx),#v(playery);
}
}
if (actionserverside) {
if (strequals(#p(0),warp)) {
setlevel2 #I(clientr.plane,0),strtofloat(#I(clientr.plane,1) ),strtofloat(#I(clientr.plane,2));
}
}