WebSVN – programming – Diff – /school/cs480/elevator/controller.cpp

     // to this floor. If there is already one, ignore this
     // request.
     if (floor_already_requested (on_floor))
         return;
-    //puts("2");
     // find elevator that is closest, AND NOT moving away
     // "push" it's button
     elevator_number = find_closest_elevator (on_floor, direction);
     elevator.at(elevator_number) -> push_button (on_floor);
  * Check if there is an elevator already in the queue to stop
  * at the floor given as a parameter.
  */
 bool Controller::floor_already_requested (int on_floor)
+{
+    assert (on_floor >= 0);
+    assert (on_floor < num_floors);
     int i;
     for (i=0; i<num_elevators; i++)
         if (elevator.at(i) -> button_is_pushed (on_floor))
             return true;
  * heading in the right direction, or the closest elevator
  * if it is sitting idle.
  */
 int Controller::find_closest_elevator (int to_floor, int in_direction)
+{
+    assert (to_floor >= 0);
+    assert (to_floor < num_floors);
+    assert (in_direction == MOVE_UP || in_direction == MOVE_DOWN);
     int i;
     float distance = INT_MAX;
     float temp_distance;
     int answer = -1;

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