[Carlton]

Use the IsPlayerInArea function which is below. ( I sorta edited it for you )

pawn Code:

public IsPlayerInArea(playerid, Float:maxx, Float:maxy, Float:minx, Float:miny)
{
   new Float:x, Float:y, Float:z;
   GetPlayerPos(playerid, x, y, z);
   if(x < maxx && y < maxy  && x > minx && y > miny) return 1;
   return 0;
}