static void Main(string[] args)
{
//FIGURE 4
// Step 3: Create an instance of the delegate type
// (I'll call the instance a 'delegate object') and
// attach (or detach) callback methods to the delegate
// object.
ShipDockedCallback shipDocked = ShipOperations.Refuel;
//FIGURE 5
var shipDiagnostics = new ShipDiagnostics()
{
FuelCapacity = 100,
FuelAvailable = 50
};
//FIGURE 6
// Step 4: Invoke the delegate object (which in
// turn invokes all the callback methods).
shipDocked(shipDiagnostics);
Console.WriteLine("Operations complete!");
Console.ReadLine();
}
// Step 2: Define callback methods whose method signature
// matches the the delegate type's method signature.
public static void Refuel(ShipDiagnostics dockingShip)
{
Console.WriteLine("Refueling ...");
int refuelAmount = dockingShip.FuelCapacity - dockingShip.FuelAvailable;
if (refuelAmount > 0)
{
// Implement billing system.
// Implement robotic fueling system.
// Reset fuel gauge:
dockingShip.FuelAvailable = dockingShip.FuelCapacity;
}
Console.WriteLine("Refueled: {0}", refuelAmount);
}
