elevator-saga/elevator.js

{
	init: function(elevators, floors) {
		console.clear();
		console.log("----" + "\n");
		console.log("Starting...");
		console.log("----" + "\n");

		let floorCount = floors.length;
		let bottomFloor = 0;
		let topFloor = floorCount - 1;
		let elevatorCount = elevators.length;

		let upRequestFloorSet = new Set();
		let downRequestFloorSet = new Set();

		// Register floor button presses
		floors.forEach(function (floor) {
			floor.on("up_button_pressed", function() {
				console.log("Up request: " + floor.level);
				upRequestFloorSet.add(floor.floorNum);
			});

			floor.on("down_button_pressed", function() {
				console.log("Down request: " + floor.level);
				downRequestFloorSet.add(floor.floorNum);
			});
		});

		// Individual elevators
		let elevator = elevators[0];
		let elevatorIndex = elevators.indexOf(elevator);

		let destinationSet = new Set();

		let defaultRange = [
			(elevatorIndex + 0) * Math.floor(floorCount / (elevatorCount + 1)),
			(elevatorIndex + 1) * Math.floor(floorCount / (elevatorCount + 1)),
			(elevatorIndex + 2) * Math.floor(floorCount / (elevatorCount + 1))
		]

		// Elevator starts on floor 0; must be going up
		elevator.goingUpIndicator(true);
		elevator.goingDownIndicator(false);

		// Go to designated starting floor
		console.log("Sending elevator[" + elevatorIndex + "] to floor[" + defaultRange[0] + "]")
		elevator.goToFloor((elevatorIndex + 0) * Math.floor(floorCount / (elevatorCount + 1)));

		elevator.on("idle", function() {
			console.log("Idle...");
			elevator.goingUpIndicator(false);
			elevator.goingDownIndicator(false);
		});

		elevator.on("floor_button_pressed", function(floorNum) {
			console.log("Floor pressed: " + floorNum);
			destinationSet.add(floorNum);
			elevator.goToFloor(floorNum);
		});

		elevator.on("passing_floor", function(floorNum, direction) {
			if(upRequestFloorSet.has(floorNum) || downRequestFloorSet.has(floorNum) || destinationSet.has(floorNum)) {
				elevator.goToFloor(floorNum);
			}
		});

		elevator.on("stopped_at_floor", function(floorNum) {
			console.log("Stopped at: " + floorNum);
			upRequestFloorSet.delete(floorNum);
			downRequestFloorSet.delete(floorNum);
			destinationSet.delete(floorNum);
		});
	},

	update: function(dt, elevators, floors) {}
}