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example-near-beer-game.html
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<html>
<head>
<title>Discrete-Event Simulator: Near Beer Game</title>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap-theme.min.css" integrity="sha384-rHyoN1iRsVXV4nD0JutlnGaslCJuC7uwjduW9SVrLvRYooPp2bWYgmgJQIXwl/Sp" crossorigin="anonymous">
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js" integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.6.1/angular.js" type="text/javascript"></script>
<script src="../src/jssim.js" type="text/javascript"></script>
</head>
<body>
<div class="container-fluid" ng-app="demo" ng-controller="demoController">
<div class="row">
<div class="col-sm-12">
<h2>Discrete-Event Simulator: Near Beer Game <input type="text" id="simTime" value="" /></h2>
</div>
</div>
<div class="row">
<div class="col-sm-3">
<div class="panel panel-default">
<div class="panel-heading">Customer</div>
<div class="panel-body">
<table class="table table-hover table-stripped">
<thead>
<tr>
<th>Week</th>
<th>Ordering</th>
<th>Received</th>
<th>Unfulfilled</th>
</tr>
</thead>
<tbody>
<tr ng-repeat='record in customer.activities track by $index'>
<td>{{record.weeks}}</td>
<td>{{record.order}}</td>
<td>{{record.received}}</td>
<td>{{record.totalOrder}}</td>
</tr>
</tbody>
</table>
</div>
</div>
</div>
<div class="col-sm-5">
<div class="panel panel-default">
<div class="panel-heading">Near Beer</div>
<div class="panel-body">
<table class="table table-hover table-stripped">
<thead>
<tr>
<th>Week</th>
<th>Brewed Beers</th>
<th>Inventory Stock</th>
<th>Ordering</th>
<th>Backlog</th>
<th>Shipment</th>
</tr>
</thead>
<tbody>
<tr ng-repeat='record in agent.activities track by $index'>
<td>{{record.weeks}}</td>
<td>{{record.beers}}</td>
<td>{{record.inventoryOnHand}}</td>
<td>{{record.newRawMaterialOrder}}</td>
<td>{{record.backlog}}</td>
<td>{{record.shipment}}</td>
</tr>
</tbody>
</table>
</div>
</div>
</div>
<div class="col-sm-4">
<div class="panel panel-default">
<div class="panel-heading">Supplier</div>
<div class="panel-body">
<table class="table table-hover table-stripped">
<thead>
<tr>
<th>Week</th>
<th>Produce</th>
<th>Shipment</th>
<th>Stocks</th>
<th>Total Shipment</th>
</tr>
</thead>
<tbody>
<tr ng-repeat='record in supplier.activities track by $index'>
<td>{{record.weeks}}</td>
<td>{{record.produced}}</td>
<td>{{record.shipment}}</td>
<td>{{record.inventoryOnHand}}</td>
<td>{{record.totalShipment}}</td>
</tr>
</tbody>
</table>
</div>
</div>
</div>
</div>
<div class="row">
<div class="md-col-12">
<table class="table table-hovered table-striped">
<thead>
<tr>
<td>Customer Inbox</td>
<td>Near Bear Inbox</td>
<td>Suppler Inbox</td>
</tr>
</thead>
<tbody>
<tr>
<td>
<table class="table table-hovered">
<thead><th>Sender</th><th>Message</th><th>Detail</th></thead>
<tbody>
<tr ng-repeat="msg in customer.inbox">
<td>{{msg.sender}}</td>
<td>{{msg.type}}</td>
<td>Quantity is {{msg.quantity}}</td>
</tr>
</tbody>
</table>
</td>
<td>
<table class="table table-hovered">
<thead><th>Sender</th><th>Message</th><th>Detail</th></thead>
<tbody>
<tr ng-repeat="msg in agent.inbox">
<td>{{msg.sender}}</td>
<td>{{msg.type}}</td>
<td>Quantity is {{msg.quantity}}</td>
</tr>
</tbody>
</table>
</td>
<td>
<table class="table table-hovered">
<thead><th>Sender</th><th>Message</th><th>Detail</th></thead>
<tbody>
<tr ng-repeat="msg in supplier.inbox">
<td>{{msg.sender}}</td>
<td>{{msg.type}}</td>
<td>Quantity is {{msg.quantity}}</td>
</tr>
</tbody>
</table>
</td>
</tr>
</tbody>
</table>
</div>
</div>
</div>
<script>
(function(){
var controller = function($scope, $interval) {
var supplier_id = 'supplier';
var customer_id = 'customer';
var agent_id = 'agent';
var Customer = function() {
jssim.SimEvent.call(this, 1);
this.id = customer_id;
this.activities = [];
this.cumulativeUnfulfilledOrders = 0;
this.inbox = [];
};
Customer.prototype = Object.create(jssim.SimEvent.prototype);
Customer.prototype.update = function (delta) {
this.inbox = this.readInBox();
var arrived_goods = 0;
for(var i=0; i < this.inbox.length; ++i) {
var msg = this.inbox[i];
if(msg.type == 'newShipment') {
arrived_goods += msg.quantity;
}
}
if(arrived_goods > 0) {
this.cumulativeUnfulfilledOrders -= arrived_goods;
this.sendMsg(agent_id, {
type: 'newGDN',
quantity: arrived_goods
});
}
var order = this.makeOrder();
this.cumulativeUnfulfilledOrders += order;
var record = {};
record.weeks = this.time;
record.order = order;
record.totalOrder = this.cumulativeUnfulfilledOrders;
record.received = arrived_goods;
this.activities.push(record);
};
Customer.prototype.makeOrder = function () {
var weeks = this.time;
var order = 15;
if (weeks <= 3)
{
order = 10;
}
this.sendMsg(agent_id, {
quantity: order,
type: 'newOrder'
});
return order;
};
var NearBeerAgent = function() {
jssim.SimEvent.call(this, 1);
this.id = agent_id;
this.inventoryOnHand = 25;
this.outgoingInventory = 0;
this.backlog = 0;
this.activities = [];
this.inbox = [];
};
NearBeerAgent.prototype = Object.create(jssim.SimEvent.prototype);
NearBeerAgent.prototype.update = function (deltaTime) {
var arrived_raw_materials = 0;
this.inbox = this.readInBox();
for(var i=0; i < this.inbox.length; ++i) {
var msg = this.inbox[i];
if(msg.type == 'newShipment') {
arrived_raw_materials += msg.quantity;
} else if(msg.type == 'newOrder') {
this.backlog += msg.quantity;
} else if(msg.type == 'newGDN') { // goods delivery note from customer
this.backlog -= msg.quantity;
this.outgoingInventory -= msg.quantity;
}
}
var beers = this.brewBeers(arrived_raw_materials);
this.inventoryOnHand += beers;
var shipment = this.makeShipment();
var order = this.makeOrder();
var record = {};
record.newRawMaterialOrder = order;
record.backlog = this.backlog;
record.beers = beers;
record.inventoryOnHand = this.inventoryOnHand;
record.weeks = this.time;
record.shipment = shipment;
this.activities.push(record);
};
NearBeerAgent.prototype.makeShipment = function () {
var shipment = Math.min(this.backlog - this.outgoingInventory, this.inventoryOnHand);
if(shipment > 0) {
this.sendMsg(customer_id, {
type: 'newShipment',
quantity: shipment
});
this.inventoryOnHand -= shipment;
this.outgoingInventory += shipment;
}
return shipment;
};
NearBeerAgent.prototype.makeOrder = function () {
var weeks = this.time;
var value = 0;
if (weeks <= 4)
{
value = 10;
}
else if ((weeks > 4) && (weeks <= 7))
{
value = 25;
}
else
{
value = 15;
}
this.sendMsg(supplier_id, {
quantity: value,
type: 'newOrder'
});
return value;
};
NearBeerAgent.prototype.brewBeers = function (rawMaterials) {
return Math.floor(rawMaterials * (0.8 + Math.random() * 0.1 - 0.05));
};
var Supplier = function () {
jssim.SimEvent.call(this, 2); // higher rank than agent and customer so that it executes first
this.id = supplier_id;
this.activities = [];
this.totalShipment = 0;
this.inventoryOnHand = 0;
this.inbox = [];
};
Supplier.prototype = Object.create(jssim.SimEvent.prototype);
Supplier.prototype.update = function (delta) {
this.inbox = this.readInBox();
var order = 0;
for(var i=0; i < this.inbox.length; ++i) {
var msg = this.inbox[i];
if(msg.type == 'newOrder') {
order += msg.quantity;
}
}
var produced = this.produce(order);
var shipment = this.makeShipment(order);
this.totalShipment += shipment;
var record = {};
record.produced = produced;
record.inventoryOnHand = this.inventoryOnHand;
record.shipment = shipment;
record.totalShipment = this.totalShipment;
record.weeks = this.time;
this.activities.push(record);
};
Supplier.prototype.produce = function(order) {
var produced = Math.max(10, order);
if(Math.random() < 0.5) {
produced -= 5;
}
this.inventoryOnHand += produced;
return produced;
}
Supplier.prototype.makeShipment = function (order) {
var shipment = Math.max(0, this.inventoryOnHand - order)
if(shipment > 0){
this.sendMsg(agent_id, {
quantity: shipment,
type: 'newShipment'
});
this.inventoryOnHand -= shipment;
}
return shipment;
};
var scheduler = new jssim.Scheduler();
function reset() {
scheduler.reset();
$scope.customer = new Customer();
$scope.supplier = new Supplier();
$scope.agent = new NearBeerAgent();
scheduler.scheduleRepeatingIn($scope.customer, 1);
scheduler.scheduleRepeatingIn($scope.supplier, 1);
scheduler.scheduleRepeatingIn($scope.agent, 1);
}
reset();
$interval(function(){
if(scheduler.current_time == 10) {
reset();
}
scheduler.update();
console.log('current simulation time: ' + scheduler.current_time);
document.getElementById("simTime").value = "Simulation Time: " + scheduler.current_time;
}, 1000);
};
var app = angular.module('demo', []);
app.controller('demoController', ['$scope', '$interval', controller]);
})();
</script>
</body>
</html>