public void CalculatorDoesBasicCalculations()
{
InputCalculator calculator = new InputCalculator("2 3");
Assert.AreEqual(calculator.Calculate(), 5);
calculator = new InputCalculator("* 2 3");
Assert.AreEqual(calculator.Calculate(), 6);
calculator = new InputCalculator("- 2 3");
Assert.AreEqual(calculator.Calculate(), -5);
calculator = new InputCalculator("/ 6 2");
Assert.AreEqual(calculator.Calculate(), 3);
}
public void OperatorStateChangesBasedOnInput()
{
InputCalculator calculator = new InputCalculator("-");
calculator.Calculate();
Assert.AreEqual(new Subtract().GetType(), calculator.currentState.GetType());
calculator = new InputCalculator("+");
calculator.Calculate();
Assert.AreEqual(new Add().GetType(), calculator.currentState.GetType());
calculator = new InputCalculator("*");
calculator.Calculate();
Assert.AreEqual(new Multiply().GetType(), calculator.currentState.GetType());
calculator = new InputCalculator("/");
calculator.Calculate();
Assert.AreEqual(new Divide().GetType(), calculator.currentState.GetType());
}
void GetMultiTouchInput()
{
for (int i = 0; i < Input.touchCount; i++)
{
if (Input.GetTouch(i).phase == TouchPhase.Began)
{
//if the last press time is less than allowed, reset the dictionary.
if (Mathf.Abs(multiFinger.lastPressTime - Time.time) < multiTouchWindow)
{
multiFinger.numFinger++;
}
else
{
multiTouchDictionary.Clear();
fingerIDs.Clear();
multiFinger.numFinger = 1;
multiFinger.lastPressTime = Time.time;
}
//Add the finger to the dictionary,
multiTouchDictionary.Add(Input.GetTouch(i).fingerId, new Finger(Input.GetTouch(i), i));
fingerIDs.Add(Input.GetTouch(i).fingerId);
//Clear the action stack because a new press is detected.
actionList.Clear();
}
if (Input.GetTouch(i).phase == TouchPhase.Ended || Input.GetTouch(i).phase == TouchPhase.Canceled)
{
if (multiTouchDictionary.TryGetValue(Input.GetTouch(i).fingerId, out tempFinger))
{
//Before we remove it, calculate the current swipe value for each finger and save it onto the stack.
actionList.Add(CalculateSwipe(tempFinger.DeltaPosition));
//Debug text.
//Check if it exists in dictionary, and remove if so.
multiTouchDictionary.Remove(Input.GetTouch(i).fingerId);
fingerIDs.Remove(Input.GetTouch(i).fingerId);
}
//Compare the last tap time.
if (Mathf.Abs(multiFinger.lastFingerLeaveTime - Time.time) < multiTouchWindow)
{
multiFinger.numFingerLeft++;
}
else
{
multiFinger.numFingerLeft = 1;
multiFinger.lastFingerLeaveTime = Time.time;
}
}
}
if (multiTouchDictionary.Count == 0)
{
//The number of fingers presse is equal to the number of fingers left. It also has to have more than 1 finger so that it is a multi touch.
if (multiFinger.numFinger == multiFinger.numFingerLeft && multiFinger.numFinger > 1)
{
//Check if the inputs are swipes.
InputAction curInput = actionList[0];
bool isSameAction = true;
for (int i = 1; i < actionList.Count; i++)
{
if (curInput != actionList[i])
{
isSameAction = false;
}
}
if (!isSameAction) //One of the finger had different from the rest of fingers.
{
multiFinger.ResetFinger();
/*}else if (multiFinger.lastPressTime + dragThreshold + multiTouchWindow < Time.time) { Uncomment this if you want to have drag threshold on multi finger.
* //Will need to be a drag, not a swipe.
* multiFinger.ResetFinger();*/
}
else
{
if (curInput == InputAction.Click)
{
//It is a successful tap. Now we check if the number of fingers previously is same as the currently saved.
if (multiFinger.numTap > 0)
{
bool isSameNumFinger = multiFinger.numFinger == multiFinger.numFingerTapped;
if (!isSameNumFinger)
{
multiFinger.numTap = 0; //Reset the number of tap because the number of fingers tapped is now different.
}
}
else //This is the first tap with this number of fingers.
{
multiFinger.numFingerTapped = multiFinger.numFinger;
}
multiFinger.lastTapTime = Time.time;
multiFinger.numTap++;
multiFinger.ResetFinger();
}
else //It is a swipe.
{
currentInput = InputCalculator.Calculate(multiFinger.numFinger, curInput);
}
}
}
if (multiFinger.lastTapTime + doubleClickThreshold < Time.time)
{
//Only count as tap IF the last finger pressed time is less than the drag threshold.
if (multiFinger.lastPressTime + dragThreshold + multiTouchWindow > Time.time && multiFinger.lastPressTime != 0)
{
//Calculate the tap and reset the value.
if (multiFinger.numTap == 1)
{
currentInput = InputCalculator.Calculate(multiFinger.numFingerTapped, InputAction.Click);
}
else if (multiFinger.numTap == 2)
{
currentInput = InputCalculator.Calculate(multiFinger.numFingerTapped, InputAction.DoubleClick);
} //We don't do beyond double tap.
}
//Reset the tap.
multiFinger.Reset();
}
}
else
{
//Check if any of the finger left the screen OR if there are more than 5 fingers. We don't calculate beyond 5 fingers.
if (multiFinger.numFingerLeft > 0 || multiFinger.numFinger > 5)
{
currentInput = InputAction.Null;
}
//Check if the finger has been pressed long enough to count as a drag.
if (multiFinger.lastPressTime + multiTouchWindow < Time.time && multiFinger.lastPressTime != 0)
{
//Calculate the drag.
multiTouchDictionary[fingerIDs[0]].action = CalculateDrag(multiTouchDictionary[fingerIDs[0]].DeltaPosition);
bool isSameAction = true;
for (int i = 1; i < multiTouchDictionary.Count; i++)
{
multiTouchDictionary[fingerIDs[i]].action = CalculateDrag(multiTouchDictionary[fingerIDs[i]].DeltaPosition);
if (multiTouchDictionary[fingerIDs[0]].action != multiTouchDictionary[fingerIDs[i]].action)
{
isSameAction = false;
}
}
if (isSameAction)
{
//It becomes a drag.
currentInput = InputCalculator.Calculate(Input.touchCount, multiTouchDictionary[fingerIDs[0]].action);
}
else
{
//The input isnt the same. Now we check if the input is pinch in/out.
if (multiFinger.numFinger == 2)
{
currentInput = CalculatePinch();
}
}
}
}
}