Maybe someone else can help? Should work fine in lite-c as far as I can see. I use A7.73 commercial, lite-c.
This code works in my lite-c, but if it doesnt work in lite-c(free) I dont know the differences. Sorry.
Code:
   VECTOR tmpV;   
   vec_set(tmp, my.x);
   tmpV.z -= 5000;
   var dist_chao = c_trace(my.x, temp.x, IGNORE_PASSABLE);
   if(hit.entity.OBJECT_TYPE==OBSTACULO)
   {   set(mypanel, VISIBLE);   } 
   else 
   {   reset(mypanel, VISIBLE); }


"There is no fate but what WE make." - CEO Cyberdyne Systems Corp.
A8.30.5 Commercial