// public interface
public void Clear()
{
// reset internal state of board
for (int i = 0; i < this.numRows; i++)
{
for (int j = 0; j < this.numColumns; j++)
{
this.board[i, j].Color = CellColor.LightGray;
this.board[i, j].State = CellState.Free;
}
}
// update view
ViewCellList list = new ViewCellList();
for (int i = 0; i < this.numRows; i++)
{
for (int j = 0; j < this.numColumns; j++)
{
ViewCell cell = new ViewCell();
cell.Color = CellColor.LightGray;
cell.Point = new CellPoint()
{
X = j, Y = i
};
list.Add(cell);
}
}
this.OnBoardChanged(list);
}
public override void UpdateModifiedCellList(ViewCellList list, CellColor color)
{
list.Add(new ViewCell(color, new CellPoint()
{
X = this.anchorPoint.X, Y = this.anchorPoint.Y
}));
list.Add(new ViewCell(color, new CellPoint()
{
X = this.anchorPoint.X + 1, Y = this.anchorPoint.Y
}));
list.Add(new ViewCell(color, new CellPoint()
{
X = this.anchorPoint.X, Y = this.anchorPoint.Y + 1
}));
list.Add(new ViewCell(color, new CellPoint()
{
X = this.anchorPoint.X + 1, Y = this.anchorPoint.Y + 1
}));
}
private void CopySingleRow(ViewCellList list, int row)
{
for (int j = 0; j < this.numColumns; j++)
{
// create cell to update view
ViewCell cell = new ViewCell();
cell.Color = this.board[row, j].Color;
cell.Point = new CellPoint()
{
X = j, Y = row + 1
};
list.Add(cell);
// finally copy block one row down ...
// Note: TetrisCell is a 'struct', so '=' works fine --
// In case of a reference type: Clone needed (deep copy) !!!
this.board[row + 1, j] = this.board[row, j];
}
}
public override void UpdateModifiedCellList(ViewCellList list, CellColor color)
{
if (this.rotation == RotationAngle.Degrees_0)
{
list.Add(new ViewCell(color, new CellPoint()
{
X = this.anchorPoint.X - 1, Y = this.anchorPoint.Y + 1
}));
list.Add(new ViewCell(color, new CellPoint()
{
X = this.anchorPoint.X, Y = this.anchorPoint.Y + 1
}));
list.Add(new ViewCell(color, new CellPoint()
{
X = this.anchorPoint.X, Y = this.anchorPoint.Y
}));
list.Add(new ViewCell(color, new CellPoint()
{
X = this.anchorPoint.X + 1, Y = this.anchorPoint.Y
}));
}
else if (this.rotation == RotationAngle.Degrees_90)
{
list.Add(new ViewCell(color, new CellPoint()
{
X = this.anchorPoint.X - 1, Y = this.anchorPoint.Y - 1
}));
list.Add(new ViewCell(color, new CellPoint()
{
X = this.anchorPoint.X - 1, Y = this.anchorPoint.Y
}));
list.Add(new ViewCell(color, new CellPoint()
{
X = this.anchorPoint.X, Y = this.anchorPoint.Y
}));
list.Add(new ViewCell(color, new CellPoint()
{
X = this.anchorPoint.X, Y = this.anchorPoint.Y + 1
}));
}
else if (this.rotation == RotationAngle.Degrees_180)
{
list.Add(new ViewCell(color, new CellPoint()
{
X = this.anchorPoint.X - 1, Y = this.anchorPoint.Y
}));
list.Add(new ViewCell(color, new CellPoint()
{
X = this.anchorPoint.X, Y = this.anchorPoint.Y
}));
list.Add(new ViewCell(color, new CellPoint()
{
X = this.anchorPoint.X, Y = this.anchorPoint.Y - 1
}));
list.Add(new ViewCell(color, new CellPoint()
{
X = this.anchorPoint.X + 1, Y = this.anchorPoint.Y - 1
}));
}
else if (this.rotation == RotationAngle.Degrees_270)
{
list.Add(new ViewCell(color, new CellPoint()
{
X = this.anchorPoint.X, Y = this.anchorPoint.Y - 1
}));
list.Add(new ViewCell(color, new CellPoint()
{
X = this.anchorPoint.X, Y = this.anchorPoint.Y
}));
list.Add(new ViewCell(color, new CellPoint()
{
X = this.anchorPoint.X + 1, Y = this.anchorPoint.Y
}));
list.Add(new ViewCell(color, new CellPoint()
{
X = this.anchorPoint.X + 1, Y = this.anchorPoint.Y + 1
}));
}
}