private void Render(object sender, PaintEventArgs e)
{
Graphics g = e.Graphics;
g.SmoothingMode = SmoothingMode.AntiAlias;
ScreenOptions screenOptions = CalculateScreenOptions();
int tileSize = screenOptions.TileSize;
int hintSizeDifference = tileSize / 2;
bool toggleColor = false;
for (int row = 0; row < boardRows; row++)
{
for (int column = 0; column < boardColumns; column++)
{
// Draw the board with (dark) green tiles.
Rectangle r = new Rectangle(
column * tileSize + screenOptions.Offset.X,
row * tileSize + screenOptions.Offset.Y, tileSize, tileSize);
toggleColor = !toggleColor;
g.FillRectangle(toggleColor ? Brushes.DarkGreen : Brushes.Green, r);
switch (board[row, column])
{
case FieldState.Hint:
if (showHints)
{
g.FillEllipse(
currentPlayer == FieldState.PlayerOne ? playerOneHintBrush : playerTwoHintBrush,
r.X + hintSizeDifference / 2,
r.Y + hintSizeDifference / 2,
tileSize - hintSizeDifference,
tileSize - hintSizeDifference);
}
break;
case FieldState.PlayerOne:
g.FillEllipse(Brushes.Black, r);
break;
case FieldState.PlayerTwo:
g.FillEllipse(Brushes.White, r);
break;
}
}
toggleColor = !toggleColor;
}
}
private void OnClick(object sender, MouseEventArgs e)
{
ScreenOptions screenOptions = CalculateScreenOptions();
// Translate the clicked location to a location on the board.
int row = (int)Math.Ceiling((e.Y - screenOptions.Offset.Y) /
(double)(boardRows * screenOptions.TileSize) * boardRows) - 1;
int column = (int)Math.Ceiling((e.X - screenOptions.Offset.X) /
(double)(boardColumns * screenOptions.TileSize) * boardColumns) - 1;
// If the clicked tile is outside board bounds or
// if the field has a piece, return.
if (row < 0 || row > boardRows - 1 ||
column < 0 || column > boardColumns - 1 ||
board[row, column] == FieldState.PlayerOne ||
board[row, column] == FieldState.PlayerTwo)
{
return;
}
// Converting to an array to prevent multiple enumeration for Any and the foreach.
var validPieces = CalculateValidPieces(row, column).ToArray();
// If the move is invalid, return.
if (!validPieces.Any())
{
return;
}
// Change all valid pieces to the current player's color.
foreach (var pieceToChange in validPieces)
{
board[pieceToChange.Y, pieceToChange.X] = currentPlayer;
}
// Set the clicked tile to the current player's color as well.
board[row, column] = currentPlayer;
SwapPlayers();
Invalidate(true);
}
