public override StateAutomaton DoStepForward()
{
var isInterestingState = false;
StepsCount++;
StateAutomaton state = new StateHeapSortAutomaton(-1, -1, -1, (int)dataModel.State, "", dataModel.Array, -1);
while (!isInterestingState)
{
switch (dataModel.State)
{
case States.InitialState:
{
dataModel.State = States.StartLoopBuildingPyramid;
break;
}
case States.StartLoopBuildingPyramid:
{
dataModel.Index = (dataModel.ArraySize / 2) - 1;
dataModel.State = States.LoopBuildingPyramid;
break;
}
case States.LoopBuildingPyramid:
{
dataModel.State = dataModel.Index >= 0 ? States.SiftingElementInBuildingPyramid : States.StartLoopSorting;
break;
}
case States.SiftingElementInBuildingPyramid:
{
if (automatonSiftDown.State != AutomatonSiftDown.States.FinalState)
{
isInterestingState = true;
state = automatonSiftDown.DoStepForward(dataModel.Index, dataModel.ArraySize, dataModel.SortedPart);
dataModel.State = States.SiftingElementInBuildingPyramid;
}
else
{
automatonSiftDown.State = AutomatonSiftDown.States.InitialState;
dataModel.State = States.DecrementCounterInBuildingPyramid;
}
break;
}
case States.DecrementCounterInBuildingPyramid:
{
dataModel.Index--;
dataModel.State = States.LoopBuildingPyramid;
break;
}
case States.StartLoopSorting:
{
dataModel.Index = dataModel.ArraySize;
dataModel.State = States.LoopSorting;
break;
}
case States.LoopSorting:
{
// MessageBox.Show(dataModel.Index.ToString());
dataModel.State = dataModel.Index > 1 ? States.SwappingElements : States.FinalState;
break;
}
case States.SwappingElements:
{
state = GetStateHeapSortAutomaton(dataModel.State);
isInterestingState = true;
dataModel.SwappingElements();
dataModel.SortedPart = dataModel.Index - 1;
dataModel.State = States.SiftingElementInSorting;
break;
}
case States.SiftingElementInSorting:
{
if (automatonSiftDown.State != AutomatonSiftDown.States.FinalState && automatonSiftDown.State != AutomatonSiftDown.States.EndLoop)
{
isInterestingState = true;
state = automatonSiftDown.DoStepForward(0, dataModel.Index - 1, dataModel.SortedPart);
dataModel.State = States.SiftingElementInSorting;
}
else
{
automatonSiftDown.State = AutomatonSiftDown.States.InitialState;
dataModel.State = States.DecrementCounterSorting;
}
break;
}
case States.DecrementCounterSorting:
{
dataModel.Index--;
dataModel.State = States.LoopSorting;
break;
}
case States.FinalState:
{
state = GetStateHeapSortAutomaton(dataModel.State);
isInterestingState = true;
break;
}
}
}
return state;
}
public StateAutomaton DoStepForward(int i, int j, int sortedPart)
{
var isInterestingState = false;
StateAutomaton state = new StateHeapSortAutomaton(-1, -1, -1, (int) dataModel.State, "", dataModel.Array,
dataModel.SortedPart);
while (!isInterestingState)
{
switch (dataModel.State)
{
case States.InitialState:
{
dataModel.State = States.InitializeVariables;
break;
}
case States.InitializeVariables:
{
dataModel.IsDone = false;
dataModel.State = States.StartLoop;
break;
}
case States.StartLoop:
{
dataModel.SortedPart = sortedPart;
dataModel.Counter = i;
dataModel.State = States.Loop;
break;
}
case States.Loop:
{
isInterestingState = true;
state = GetStateShiftDownAutomaton(dataModel.State);
dataModel.State = dataModel.Counter*2 + 1 < j && !dataModel.IsDone
? States.InitializingIndexMaximumChild
: States.FinalState;
break;
}
case States.InitializingIndexMaximumChild:
{
dataModel.IndexMaximumChild = dataModel.Counter*2 + 1;
dataModel.State = States.ConditionOnUpdateMaximumChild;
break;
}
case States.ConditionOnUpdateMaximumChild:
{
isInterestingState = true;
state = GetStateShiftDownAutomaton(dataModel.State);
dataModel.State = dataModel.Counter*2 + 2 < j &&
dataModel.Array[dataModel.IndexMaximumChild] <
dataModel.Array[dataModel.Counter*2 + 2]
? States.UpdateMaximalChild
: States.EndingConditionOnUpdateMaximumChild;
break;
}
case States.UpdateMaximalChild:
{
dataModel.IndexMaximumChild = dataModel.Counter*2 + 2;
dataModel.State = States.EndingConditionOnUpdateMaximumChild;
break;
}
case States.EndingConditionOnUpdateMaximumChild:
{
isInterestingState = true;
state = GetStateShiftDownAutomaton(dataModel.State);
dataModel.State = States.ConditionOnUpdateParent;
break;
}
case States.ConditionOnUpdateParent:
{
isInterestingState = true;
state = GetStateShiftDownAutomaton(dataModel.State);
dataModel.State = dataModel.Array[dataModel.Counter] <
dataModel.Array[dataModel.IndexMaximumChild]
? States.SwappingParentWithMaximumChild
: States.EndLoop;
break;
}
case States.SwappingParentWithMaximumChild:
{
isInterestingState = true;
state = GetStateShiftDownAutomaton(dataModel.State);
dataModel.SwapParentWithMaximumChild();
dataModel.State = States.EndingConditionOnUpdateParent;
break;
}
case States.EndLoop:
{
state = GetStateShiftDownAutomaton(dataModel.State);
isInterestingState = true;
dataModel.IsDone = true;
dataModel.State = States.FinalState;
break;
}
case States.EndingConditionOnUpdateParent:
{
dataModel.State = States.Loop;
break;
}
case States.FinalState:
{
state = GetStateShiftDownAutomaton(States.EndLoop);
isInterestingState = true;
break;
}
}
}
return state;
}