static void Main(string[] args)
{
//Reference: https://sourcemaking.com/design_patterns/state
string input = "0";
Fan fan = new Fan();
Console.WriteLine("The fan is turned off please insert the commands");
while (input.Equals("0") || input.Equals("1"))
{
Console.WriteLine("\nPress 0 to decrease the fan velocity or 1 to increase the fan velocity");
input = Console.ReadLine();
if (input.Equals("0"))
{
fan.DecreaseVelocity();
}
else if (input.Equals("1"))
{
fan.IncreaseVelocity();
}
}
Console.WriteLine("Exiting the application ...");
Console.Read();
}
public void DecreaseVelocity(Fan fan)
{
Console.WriteLine("The fan is already off");
}
public void IncreaseVelocity(Fan fan)
{
fan.currentState = new VelocityOneState();
Console.WriteLine("Velocity changed: Fan turned on");
}
public void DecreaseVelocity(Fan fan)
{
fan.currentState = new VelocityOneState();
Console.WriteLine("Velocity changed: 2 => 1");
}
public void IncreaseVelocity(Fan fan)
{
Console.WriteLine("It's not possible to increase the velocity anymore");
}
public void DecreaseVelocity(Fan fan)
{
fan.currentState = new OffState();
Console.WriteLine("Velocity changed: Fan turned off");
}
public void IncreaseVelocity(Fan fan)
{
fan.currentState = new VelocityTwoState();
Console.WriteLine("Velocity changed: 1 => 2");
}