private void ExecuteTaskGroup(BubbleTaskGroup taskGroup)
{
foreach (var task in taskGroup)
{
var bubble = task.Bubble;
var moveDistance = task.MoveDistance;
switch (taskGroup.TaskType)
{
case BubbleTaskType.Burst:
RemoveBubble(bubble);
break;
case BubbleTaskType.Add:
AddBubble(bubble);
break;
case BubbleTaskType.MoveDown:
bubble.MoveTo(bubble.Row + moveDistance, bubble.Column);
break;
case BubbleTaskType.MoveRight:
bubble.MoveTo(bubble.Row, bubble.Column + moveDistance);
break;
}
}
}
public BubbleTaskGroup CreateTaskGroup(BubbleTaskType taskType, BubbleViewModel[] bubblesInGroup)
{
BubbleTaskGroup taskGroup = null;
switch (taskType)
{
case BubbleTaskType.Burst:
taskGroup = new BubbleTaskGroup {
TaskType = BubbleTaskType.Burst
};
foreach (var bubble in bubblesInGroup)
{
taskGroup.Add(new BubbleTask {
Bubble = bubble
});
}
break;
case BubbleTaskType.MoveDown:
taskGroup = MoveBubblesDown(bubblesInGroup);
break;
case BubbleTaskType.MoveRight:
taskGroup = MoveBubblesRight();
break;
}
return(taskGroup);
}
BubbleTaskGroup MoveBubblesDown(BubbleViewModel[] bubblesInGroup)
{
var taskGroup = new BubbleTaskGroup {
TaskType = BubbleTaskType.MoveDown
};
int[] affectedColumns = bubblesInGroup.Select(b => b.Column).Distinct().ToArray();
foreach (int affectedColumn in affectedColumns)
{
var bubblesInColumn = _bubbleMatrix.Bubbles.Where(b => b.Column == affectedColumn).ToArray();
// If Empty Column
if (bubblesInColumn.Length == 0)
{
continue;
}
var moveDistance = 0;
for (var rowIndex = _bubbleMatrix.RowCount - 1; rowIndex >= 0; rowIndex--)
{
var bubble = bubblesInColumn.SingleOrDefault(b => b.Row == rowIndex);
if (bubble != null)
{
if (moveDistance > 0)
{
taskGroup.Add(new BubbleTask {
Bubble = bubble, MoveDistance = moveDistance
});
}
}
else
{
moveDistance++;
}
}
}
return(taskGroup);
}
public BubbleTaskGroup CreateUndoTaskGroup(BubbleTaskGroup taskGroup)
{
taskGroup.ResetTask();
switch (taskGroup.TaskType)
{
case BubbleTaskType.Burst:
taskGroup.TaskType = BubbleTaskType.Add;
break;
case BubbleTaskType.MoveRight:
case BubbleTaskType.MoveDown:
foreach (var task in taskGroup)
{
// Move the same distance in the opposite direction
task.MoveDistance = -task.MoveDistance;
}
break;
}
return(taskGroup);
}
BubbleTaskGroup MoveBubblesRight()
{
var taskGroup = new BubbleTaskGroup {
TaskType = BubbleTaskType.MoveRight
};
for (int rowIndex = _bubbleMatrix.RowCount - 1; rowIndex >= 0; rowIndex--)
{
var bubblesInRow = _bubbleMatrix.Bubbles.Where(b => b.Row == rowIndex).ToArray();
// Skip empty rows and full rows.
if (bubblesInRow.Length == 0 ||
bubblesInRow.Length >= _bubbleMatrix.ColumnCount)
{
continue;
}
var moveDistance = 0;
for (int colIndex = _bubbleMatrix.ColumnCount - 1; colIndex >= 0; colIndex--)
{
var bubble = bubblesInRow.SingleOrDefault(b => b.Column == colIndex);
if (bubble != null)
{
if (moveDistance > 0)
{
taskGroup.Add(new BubbleTask {
Bubble = bubble, MoveDistance = moveDistance
});
}
}
else
{
moveDistance++;
}
}
}
return(taskGroup);
}