protected Figure ExecuteCommand(Commander.CommandType command, Figure figure, PlayingField playingField)
{
switch (command)
{
case Commander.CommandType.A:
figure = figure.ShiftXLeft();
break;
case Commander.CommandType.D:
figure = figure.ShiftXRight();
break;
case Commander.CommandType.S:
figure = figure.ShiftYDown();
break;
case Commander.CommandType.Q:
figure = figure.RotateCounterClockwise();
break;
case Commander.CommandType.E:
figure = figure.RotateClockwise();
break;
case Commander.CommandType.P:
var fieldOut = playingField.Field.Select(row => row.ToArray()).ToArray();
foreach (var cell in figure.Cells)
fieldOut[cell.ProjectionY][cell.ProjectionX] = PlayingField.StateCoord.CurrentFigure;
foreach (var row in fieldOut)
{
foreach (var cell in row)
Console.Write
(
cell == PlayingField.StateCoord.Free ? '.' :
cell == PlayingField.StateCoord.Busy ? '#' : '*'
);
Console.Write(Environment.NewLine);
}
break;
}
if (СheckCollision(figure, playingField))
throw new CollisionException();
return figure;
}
protected PlayingField FixedFigureOnField(Figure figure, PlayingField playingField)
{
Action<PlayingField.StateCoord[][]> modPutFigure = field =>
{
foreach (var cell in figure.Cells)
field[cell.ProjectionY][cell.ProjectionX] = PlayingField.StateCoord.Busy;
};
PlayingField newPlayingField = ModifyField(modPutFigure, playingField);
return newPlayingField;
}
public PlayingEngine(PlayingField playingField, Figure[] figurs, Commander commander)
{
_playingField = playingField;
_commander = commander;
_figurs = figurs.ToImmutableArray();
}
private bool СheckCollision(Figure figure, PlayingField playingField)
{
try
{
foreach (var cell in figure.Cells)
if (playingField.Field[cell.ProjectionY][cell.ProjectionX] != PlayingField.StateCoord.Free)
return true;
}
catch (IndexOutOfRangeException)
{
return true;
}
return false;
}
private PlayingField ModifyField(Action<PlayingField.StateCoord[][]> modifyFieldFunc, PlayingField playingField)
{
var modField = playingField.Field.Select(row => row.ToArray()).ToArray();
modifyFieldFunc(modField);
var newField = modField.Select(row => row.ToImmutableArray()).ToImmutableArray();
var newPlayingField = new PlayingField(playingField.CountX, playingField.CountY, newField);
return newPlayingField;
}
protected PlayingField RemAllFullRow(PlayingField playingField, ref int bonus)
{
var field = playingField.Field.ToList();
var remRow = new List<ImmutableArray<PlayingField.StateCoord>>();
foreach (var row in field)
if (СheckFullRow(row))
{
remRow.Add(row);
bonus++;
}
remRow.ForEach(row => field.Remove(row));
var valueEmptyRow = playingField.CountY - field.Count;
var newFreeRow = Enumerable.Repeat
(
Enumerable.Repeat(PlayingField.StateCoord.Free, playingField.CountX).ToImmutableArray(),
valueEmptyRow
);
var newPlayingField = new PlayingField(
playingField.CountX, playingField.CountY, newFreeRow.Concat(field).ToImmutableArray());
return newPlayingField;
}
protected Figure ProjectNewFigure(Figure figure, PlayingField playingField)
{
int rightEndFigure = figure.Cells[0].X;
foreach (var cell in figure.Cells.Skip(1))
if (rightEndFigure < cell.X)
rightEndFigure = cell.X;
int leftEndFigure = figure.Cells[0].X;
foreach (var cell in figure.Cells.Skip(1))
if (leftEndFigure > cell.X)
leftEndFigure = cell.X;
int lenFigure = rightEndFigure - leftEndFigure + 1;
int positionOffsetLeft = (playingField.CountX - lenFigure) / 2;
int upEndFigure = figure.Cells[0].Y;
foreach (var cell in figure.Cells.Skip(1))
if (cell.Y < upEndFigure)
upEndFigure = cell.Y;
var newFigure = figure.ShiftXRight(Math.Abs(leftEndFigure) + positionOffsetLeft).ShiftYDown(Math.Abs(upEndFigure));
if (СheckCollision(newFigure, playingField))
throw new CollisionException();
return newFigure;
}
protected PlayingField GameOver(PlayingField playingField, ref int bonus)
{
bonus -= 10;
return new PlayingField(playingField.CountX, playingField.CountY);
}