/// <summary>
/// Sorts the list of Nodes with animations asynchrnously with yields.
/// </summary>
/// <returns></returns>
private IEnumerator AnimatedSortCoroutine()
{
GameObject runner = null, leftNode = null;
int comparisonCount = 0;
if (theList.Count() < 2)
{
yield return(null);
}
// Execute the sorting algorithm. O(n^2)
for (int i = theList.Count() - 1; i > 0; i--)
{
yield return(new WaitForSeconds(timeBetweenComparisons));
leftNode = theList.GetComponent <NodeList>().NodeAtIndex(0);
for (int j = 1; j <= i; j++)
{
comparisonCount++;
runner = theList.GetComponent <NodeList>().NodeAtIndex(j);
leftNode.GetComponent <Renderer>().material = materials[1];
runner.GetComponent <Renderer>().material = materials[2];
// Bubble sort swaps on every instance of i+1 > i.
if (leftNode.GetComponent <Node>().nodeValue > runner.GetComponent <Node>().nodeValue)
{
yield return(new WaitForSeconds(timeBetweenComparisons));
runner.GetComponent <Renderer>().material = materials[4];
// If on manual mode, flag so that we wait until the animation is done before we accept input for the next step.
canExecuteStep = false;
// If we are using manual stepping, wait until we get input to execute before executing swaps.
if (isUsingManualStepping && !canExecuteStep)
{
yield return(new WaitUntil(() => canExecuteStep == true));
canExecuteStep = false;
}
isReadyForInput = false;
// Send the signal to swap and animate the Nodes.
theList.AnimatedSwap(leftNode.GetComponent <Node>().nodeIndex, runner.GetComponent <Node>().nodeIndex);
//Debug.Log("Bubble sort: " + theList.ToString());
// Wait until the animation has finished to continue the loop.
yield return(new WaitUntil(() => theList.swapAnimationHelper.isLerpSwapping() == false));
isReadyForInput = true;
leftNode.GetComponent <Renderer>().material = materials[0];
runner.GetComponent <Renderer>().material = materials[0];
}
yield return(new WaitForSeconds(timeBetweenComparisons));
leftNode.GetComponent <Renderer>().material = materials[0];
leftNode = theList.GetComponent <NodeList>().NodeAtIndex(j);
}
// Retexture Nodes.
runner.GetComponent <Renderer>().material = materials[0];
leftNode.GetComponent <Renderer>().material = materials[0];
theList.GetComponent <NodeList>().NodeAtIndex(i).GetComponent <Renderer>().material = materials[3];
// Reset temp variables.
leftNode = null;
}
// Change the material to indicate sorting has finished.
theList.GetComponent <NodeList>().NodeAtIndex(0).GetComponent <Renderer>().material = materials[3];
Debug.Log("Bubble sort comparisons: " + comparisonCount);
isCoroutineIsActive = false;
}