Building& Building::step(int numRiders) // moves elevators and riders each second. numRiders = riders to randomly add to floors
{
int count = 0; // screen counter for pausing.
//@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
//@@@@@@@@@@@@@@@@@@@@@@ Riders @@@@@@@@@@@@@@@@@@@@@@@@@@@
//@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
for (int i=0; i < numRiders; i++) // add riders on random floors
{
int randomStartFloor = rand() % buildingFloors.size(); // random number from 0 to buildingFloors max
int randomDestinationFloor = rand() % buildingFloors.size(); // random number from 0 to buildingFloors max
if (randomStartFloor == 0) // Basement case - no down
{
randomDestinationFloor = rand() % (buildingFloors.size()-1) + 1; // random number from 1 to (buildingFloors max -1)
}
else if (randomStartFloor == buildingFloors.size()) // Top case - no up
{
randomDestinationFloor = rand() % (buildingFloors.size()-1); // random number from 0 to (buildingFloors max -1)
}
else
{
while (randomDestinationFloor == randomStartFloor) // make sure starting != destination floor
{
randomDestinationFloor = rand() % buildingFloors.size();
}
}
buildingFloors[randomStartFloor]->addNewRider(Rider(*buildingFloors[randomDestinationFloor])); // add rider on rand floor w/ rand dest.
} // end for (adding riders to random floors)
//@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
//@@@@@@@@@@@@@@@@@@@@@@ Elevator @@@@@@@@@@@@@@@@@@@@@@@@@@@
//@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
for (int i = 0; i<buildingElevators.size(); i++) // checking all elevators one by one [3]
{
if (buildingElevators[i]->isDoorOpen() == false) // if doors are closed [3]
{
if (!buildingElevators[i]->isNearDestination()) // executed if elevator is not near destination [3]
{
if (buildingElevators[i]->isDirectionUp()) buildingElevators[i]->moveUp(); // move up [3]
else if (buildingElevators[i]->isDirectionDown()) buildingElevators[i]->moveDown(); // move down [3]
} // end 'if not near destination' loop
else if (buildingElevators[i]->isNearDestination()) // if elevator is near to destination [4]
{
buildingElevators[i]->moveToDestinationFloor(); // [4]
buildingElevators[i]->openDoor(); // [4]
{
buildingElevators[i]->removeRidersForDestinationFloor();// remove riders; ignore returned vector of removed riders [4]
} // "{}" & cout are temp
Floor* elevatorsCurrentFloor = const_cast<Floor*>(&(buildingElevators[i]->getDestination())); // [5]
if (buildingElevators[i]->hasRiders() == false) // if elevator is empty [5]
{
if (elevatorsCurrentFloor->isPreferredDirectionUp() == true) // if floor direction = up [5]
{
buildingElevators[i]->setDirectionUp();
}
else // if floor direction != up [5]
{
buildingElevators[i]->setDirectionDown();
}
} // end if elevator = empty
if (buildingElevators[i]->getAvailableSpace()!=0) // if space in elevator, board riders [6]
{
if (buildingElevators[i]->isDirectionUp() == true) // if the elevator is going up
{
if (elevatorsCurrentFloor->hasUpRiders() == true) // if there are up riders on the floor
{
buildingElevators[i]->addRiders(elevatorsCurrentFloor->removeUpRiders(buildingElevators[i]->getAvailableSpace())); // board up-riders [6]
} // end if (has up riders)
} // end if elevator direction == up
else // for down elevators
{
if (elevatorsCurrentFloor->hasDownRiders() == true) // if there are down riders on the floor
{
buildingElevators[i]->addRiders(elevatorsCurrentFloor->removeDownRiders(buildingElevators[i]->getAvailableSpace()));// board down-riders [6]
} // end if (has down riders)
} // end else (for down riders)
} // end if space in elevator
buildingElevators[i]->setDestinationBasedOnRiders(); //reassess elevator's destination based on riders [8]
} // end if 'near destination' loop
} // end 'if elevator doors are closed' loop
else // "isDoorOpen() == true" (it already let off riders, or is in its initial state) [7]
{
if (buildingElevators[i]->hasRiders() == true) // has riders [7]
{
buildingElevators[i]->closeDoor(); // close door [7]
} // end if has riders
else // if no riders
{
buildingElevators[i]->setIdle(); // go idle [7]
}
} // else (for already let off riders or is in initial state.
} // end for loop checking all elevators
//@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
//@@@@@@@@@@@@@@@@@@@@@@ Floor @@@@@@@@@@@@@@@@@@@@@@@@@@@
//@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
for (int i = 0; i<buildingFloors.size(); i++) // check each floor (for waiting riders) [2]
{
if (buildingFloors[i]->hasRidersWaiting() == true) // if there are no riders waiting on this floor, continue with next floor [2]
{
for (int j = 0; j<buildingElevators.size(); j++) // look at each elevator to see if it needs to be sent here [2]
{
int relativeLocation = ((buildingElevators[j]->getLocation()) - (buildingFloors[i]->getLocation())); // get elevator's relative location (negative if elevator is below floor) [2]
if (buildingElevators[j]->isIdle() == true) // if this elevator's idle... [2]
{
if (relativeLocation > 0) // if elevator is above the floor... [2]
{
buildingElevators[j]->setDirectionDown(); // ... set elevator direction to down [2]
} // end if (elevator > floor)
else if (relativeLocation < 0) // otherwise if it's below... [2]
{
buildingElevators[j]->setDirectionUp(); // ...set elevator direction to up [2]
}
buildingElevators[j]->setDestination(buildingFloors[i]); // set elevator's destination to this floor [2]
buildingElevators[j]->closeDoor(); // tell elevator to close its door [2]
} // end if elevator.isIdle()
else if (buildingFloors[i]->hasUpRiders() == true && buildingElevators[j]->isDirectionUp() == true) //there are riders on this floor waiting to go up, and the elevator is going up... [10]
{
// distance from elevator's destination floor to this floor (positive if elevator destination is above this floor) [10]
int elevatorDistance = ( (buildingElevators[j]->getDestination().getLocation()) - (buildingFloors[i]->getLocation()) );
if ( (relativeLocation < 0) && (elevatorDistance > 0)) //elevator is below floor and elevator destination is above this floor [10]
{
buildingElevators[j]->setDestination(buildingFloors[i]); //set elevator's destination to this floor [10]
} // end if (elevator is moving up past this floor)
} // end else (riders on floor going up AND elevator going up)
else if ( (buildingFloors[i]->hasDownRiders() == true) && (buildingElevators[j]->isDirectionDown() == true)) //there are riders on this floor waiting to go down, and the elevator is going down... [10]
{
// distance from elevator's destination floor to this floor (negative if elevator destination is below this floor) [10]
int elevatorDistance = ( (buildingElevators[j]->getDestination().getLocation()) - (buildingFloors[i]->getLocation()) );
if ( (relativeLocation > 0) && (elevatorDistance < 0)) //elevator is above floor and elevator destination is below this floor [10]
{
buildingElevators[j]->setDestination(buildingFloors[i]); //set elevator's destination to this floor [10]
} // end if (elevator is moving down past this floor)
} // end else (riders on floor going down AND elevator going down)
} // end for loop checking all elevators
} // end if Floor has riders waiting loop
} // end for loop for checking all Floors
simulationTime ++;
return *this; // should return a reference to itself.
}
