// This program demonstrates the state design pattern by using an electric car as a subject
// to 4 states: Uncharged, minimally charged, low charged, normal charged. Each state prints
// different strings.
public static void Main(string[] args)
{
ElectricCar aCar = new ElectricCar();
// Uncharged level by default
Console.WriteLine(aCar.CurrentState.TurnOnEngine());
Console.WriteLine(aCar.CurrentState.TurnOnHazardLights());
Console.WriteLine(aCar.CurrentState.TurnOnAirConditioner());
Console.WriteLine(aCar.CurrentState.TurnOnRadio());
Console.WriteLine("\n\n");
// Minimal charged state
aCar.CurrentState.Charge();
Console.WriteLine(aCar.CurrentState.TurnOnEngine());
Console.WriteLine(aCar.CurrentState.TurnOnHazardLights());
Console.WriteLine(aCar.CurrentState.TurnOnAirConditioner());
Console.WriteLine(aCar.CurrentState.TurnOnRadio());
Console.WriteLine("\n\n");
// Low Charged state
aCar.CurrentState.Charge();
Console.WriteLine(aCar.CurrentState.TurnOnEngine());
Console.WriteLine(aCar.CurrentState.TurnOnHazardLights());
Console.WriteLine(aCar.CurrentState.TurnOnAirConditioner());
Console.WriteLine(aCar.CurrentState.TurnOnRadio());
Console.WriteLine("\n\n");
// Normal Charged state
aCar.CurrentState.Charge();
Console.WriteLine(aCar.CurrentState.TurnOnEngine());
Console.WriteLine(aCar.CurrentState.TurnOnHazardLights());
Console.WriteLine(aCar.CurrentState.TurnOnAirConditioner());
Console.WriteLine(aCar.CurrentState.TurnOnRadio());
Console.WriteLine("\n\n");
// Uncharged back to low charged state
aCar.CurrentState.Uncharge();
Console.WriteLine(aCar.CurrentState.TurnOnEngine());
Console.WriteLine(aCar.CurrentState.TurnOnHazardLights());
Console.WriteLine(aCar.CurrentState.TurnOnAirConditioner());
Console.WriteLine(aCar.CurrentState.TurnOnRadio());
Console.ReadLine();
}
// Constructor
public MinimallyChargedState(ElectricCar car)
{
this.aCar = car;
}
// Constructor
public LowChargedState(ElectricCar car)
{
this.aCar = car;
}
// Constructor
public UnchargedState(ElectricCar car)
{
this.aCar = car;
}
public ElectricCar(ElectricCar car)
{
this.CurrentState = car.CurrentState;
}
// Constructor
public NormalChargedState(ElectricCar car)
{
this.aCar = car;
}