public void Calculate(Numbers request)
{
if(request.calculationWanted == CalculationType.Add)
{
Debug.Log("Adding: " + request.number1 + " + " + request.number2 + " = " + (request.number1 + request.number2).ToString());
}
else if(nextInChain != null)
nextInChain.Calculate(request);
else
Debug.Log ("Handling of request failed: " + request.calculationWanted);
}
void OnEnable()
{
Debug.Log ("------------------");
Debug.Log ("CHAIN OF RESPONSIBILITY DESIGN PATTERN");
// create calculation objects that get chained to each other in a sec
Chain calc1 = new AddNumbers();
Chain calc2 = new SubstractNumbers();
Chain calc3 = new DivideNumbers();
Chain calc4 = new MultiplyNumbers();
// now chain them to each other
calc1.SetNextChain(calc2);
calc2.SetNextChain(calc3);
calc3.SetNextChain(calc4);
// this is the request that will be passed to a chain object to let them figure out which calculation objects it the right for the request
// the request is here the CalculationType enum we add. so we want this pair of numbers to be added
Numbers myNumbers = new Numbers(3, 5, CalculationType.Add);
calc1.Calculate(myNumbers);
// another example:
Numbers myOtherNumbers = new Numbers(6, 2, CalculationType.Multiply);
calc1.Calculate(myOtherNumbers);
// or pass it to some chain object inbetween which will not work in this case:
Numbers myLastNumbers = new Numbers(12, 3, CalculationType.Substract);
calc3.Calculate(myLastNumbers);
}
