lab5.c - #include #include int...

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#include <stdio.h> #include <elevator.h> int main(int argc, char * argv[]) { int event; //number of seconds since last time doors were opened. int ticks = 0; //gives the state of the elevator enum ElevatorState{DoorsClosed,DoorsOpen,DoorsClosing,DoorsOpening,Moving}; enum ElevatorState state = DoorsClosed; // Begin the main loop. This loops forever; it has no terminating condition. for (;;) { //if the door has been open for three seconds if(ticks == 3) event = 4; else event = elevatorGetEvent(); // See what we got switch(event) { printf("%d",event); case 0 : // Nothing has happened // There is no pending event. We have nothing to do. break;
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case 1 : // UP button was pressed // The "UP" (Floor 2) button has been pressed. Begin moving up. // Open doors after moving up to let people out. // Does not allow elevators to move if door is open if (state == DoorsClosed){ elevatorUp(); state = Moving; } break; case 2 : // DOWN button was pressed // The "DOWN" (Floor 1) button has been pressed. Begin moving down. // Open doors after moving down to let people out.
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