private int AddFields(Model.FieldPosition position, Model.FieldPosition newPosition, string axis)
{
int numberOfMovements = 0;
int valueA;
for (valueA = end + change; AXORB(valueA, begin); valueA += change)
{
ChangePosition(ref position, valueA, axis);
ChangePosition(ref newPosition, valueA - change, axis);
if (!gameModel.HaveFieldsSameValue(position, newPosition))
{
continue;
}
else if (gameModel.IsFieldEmpty(position) || gameModel.IsFieldEmpty(newPosition))
{
continue;
}
else if (gameModel.HaveFieldsSameValue(position, newPosition))
{
if (change < 0)
{
MoveFieldToNonEmptyField(newPosition, position);
}
else
{
MoveFieldToNonEmptyField(position, newPosition);
}
}
}
return(numberOfMovements);
}
/// <summary>
/// Method sets the value of the random field
/// </summary>
private void SetValueOfRandomField()
{
try
{
Model.FieldPosition position = Model.EmptyFieldPositionFactory.GetRandomEmptyFieldPosition();
gameModel.UpdateFieldToRandomValue(position, Model.FieldValue.first);
}
catch (NoFreeFieldException)
{
}
}
private void ChangePosition(ref Model.FieldPosition position, int value, String axis)
{
if (axis.Equals("x"))
{
position.x = value;
}
else if (axis.Equals("y"))
{
position.y = value;
}
else if (axis.Equals("z"))
{
position.z = value;
}
}
private int ZAxisMovement(Model.FieldPosition position)
{
int numberOfMovements = 0;
Model.FieldPosition newPosition = new Model.FieldPosition();
newPosition.SetFieldPosition(position);
numberOfMovements += MoveFields(position, newPosition, "z");
newPosition.SetFieldPosition(position);
numberOfMovements += AddFields(position, newPosition, "z");
newPosition.SetFieldPosition(position);
numberOfMovements += MoveFields(position, newPosition, "z");
newPosition.SetFieldPosition(position);
return(numberOfMovements);
}
private void MoveDown()
{
int numberOfMovements = 0;
Model.FieldPosition pos = new Model.FieldPosition();
for (pos.z = 0; pos.z < gameModel.numberOfLayers; pos.z++)
{
for (pos.x = 0; pos.x < gameModel.boardSize; pos.x++)
{
pos.y = 0;
begin = 0;
end = gameModel.boardSize - 1;
change = -1;
numberOfMovements += YAxisMovement(pos);
}
}
AfterMoveCheck(numberOfMovements);
}
private int MoveFields(Model.FieldPosition position, Model.FieldPosition newPosition, String axis)
{
int numberOfMovements = 0;
int valueA;
int valueB;
for (valueA = end + change; AXORB(valueA, begin); valueA += change)
{
ChangePosition(ref position, valueA, axis);
if (gameModel.IsFieldEmpty(position))
{
continue;
}
for (valueB = valueA - change; AXORB(valueB, end); valueB -= change)
{
ChangePosition(ref newPosition, valueB, axis);
if (gameModel.IsFieldNonEmpty(newPosition))
{
valueB += change;
ChangePosition(ref newPosition, valueB, axis);
break;
}
if (valueB == end)
{
break;
}
}
if (!position.Equals(newPosition))
{
MoveFieldToEmptyField(position, newPosition);
numberOfMovements += 1;
}
}
return(numberOfMovements);
}
private void MoveBottom()
{
if (numberOfLayers == 1)
{
return;
}
int numberOfMovements = 0;
Model.FieldPosition pos = new Model.FieldPosition();
for (pos.x = 0; pos.x < gameModel.boardSize; pos.x++)
{
for (pos.y = 0; pos.y < gameModel.boardSize; pos.y++)
{
pos.z = 0;
begin = 0;
end = gameModel.numberOfLayers - 1;
change = -1;
numberOfMovements += ZAxisMovement(pos);
}
}
AfterMoveCheck(numberOfMovements);
}
private void MoveFieldToNonEmptyField(Model.FieldPosition from, Model.FieldPosition to)
{
AddPoints(to);
gameModel.MoveFieldToNonEmptyField(from, to);
}
private void MoveFieldToEmptyField(Model.FieldPosition from, Model.FieldPosition to)
{
gameModel.MoveFieldToEmptyField(from, to);
}
/// <summary>
/// Method sets field value to empty
/// </summary>
/// <param name="position"></param>
private void EmptifyField(FieldPosition position)
{
fields[position.z][position.x, position.y] = GameBoardModel.emptyField;
}
/// <summary>
/// Method removes specified field from list of empty fields
/// </summary>
/// <param name="position"></param>
private void RemoveFieldPositionFromListOfEmptyFields(FieldPosition position)
{
RemoveFieldPositionFromListOfEmptyFields(position.z, position.x, position.y);
}
/// <summary>
/// Method adds specified field to list of empty fields
/// </summary>
/// <param name="position"></param>
private void AddFieldPositionToListOfEmptyFields(FieldPosition position)
{
AddFieldPositionToListOfEmptyFields(position.z, position.x, position.y);
}
/// <summary>
/// Method returns field value
/// </summary>
/// <param name="position"></param>
/// <returns></returns>
public FieldValue GetValue(FieldPosition position)
{
return(fields[position.z][position.x, position.y]);
}
/// <summary>
/// Method checks if field is empty
/// </summary>
/// <param name="position"></param>
/// <returns></returns>
public bool IsFieldEmpty(FieldPosition position)
{
return(!IsFieldNonEmpty(position));
}
/// <summary>
/// Method checks if field is not empty
/// </summary>
/// <param name="position"></param>
/// <returns></returns>
public bool IsFieldNonEmpty(FieldPosition position)
{
return(fields[position.z][position.x, position.y] > GameBoardModel.emptyField);
}
private void AddPoints(Model.FieldPosition position)
{
gameStatistic.AddPoints((int)gameModel.GetValue(position) * 2);
}
/// <summary>
/// Method adds specified value on specified position
/// </summary>
/// <param name="position"></param>
/// <param name="fieldValue"></param>
public void UpdateFieldToRandomValue(FieldPosition position, FieldValue fieldValue)
{
fields[position.z][position.x, position.y] = fieldValue;
}