static int ScoreMove(DotsGame game, LineInfo move)
{
System.Diagnostics.Debug.Assert(game.IsValid(move));
int completedSquares = 0;
int openSquares = 0;
switch (move.LineType)
{
case LineType.Horizontal:
// _
// | | <-- missing line is 'move'
//
if ((move.Y - 1) >= 0)
{
int sides = 0;
sides += game.GetVertical(move.X, move.Y - 1) == Player.Invalid ? 0 : 1;
sides += game.GetVertical(move.X + 1, move.Y - 1) == Player.Invalid ? 0 : 1;
sides += game.GetHorizontal(move.X, move.Y - 1) == Player.Invalid ? 0 : 1;
if (sides == 3)
{
// circle takes the square
completedSquares++;
}
if (sides == 2)
{
// leaves a square for the next move (could be us!)
openSquares++;
}
}
//
// |_| <-- missing line is 'move'
//
if ((move.Y + 1) < game.Height)
{
int sides = 0;
sides += game.GetVertical(move.X, move.Y) == Player.Invalid ? 0 : 1;
sides += game.GetVertical(move.X + 1, move.Y) == Player.Invalid ? 0 : 1;
sides += game.GetHorizontal(move.X, move.Y + 1) == Player.Invalid ? 0 : 1;
if (sides == 3)
{
// circle takes the square
completedSquares++;
}
if (sides == 2)
{
// leaves a square for the next move (could be us!)
openSquares++;
}
}
break;
case LineType.Vertical:
// _
// |_ <-- missing line is 'move'
//
if ((move.X - 1) >= 0)
{
int sides = 0;
sides += game.GetHorizontal(move.X - 1, move.Y) == Player.Invalid ? 0 : 1;
sides += game.GetHorizontal(move.X - 1, move.Y + 1) == Player.Invalid ? 0 : 1;
sides += game.GetVertical(move.X - 1, move.Y) == Player.Invalid ? 0 : 1;
if (sides == 3)
{
// circle takes the square
completedSquares++;
}
if (sides == 2)
{
// leaves a square for the next move (could be us!)
openSquares++;
}
}
// _
// _| <-- missing line is 'move'
//
if ((move.X + 1) < game.Width)
{
int sides = 0;
sides += game.GetHorizontal(move.X, move.Y) == Player.Invalid ? 0 : 1;
sides += game.GetHorizontal(move.X, move.Y + 1) == Player.Invalid ? 0 : 1;
sides += game.GetVertical(move.X + 1, move.Y) == Player.Invalid ? 0 : 1;
if (sides == 3)
{
// circle takes the square
completedSquares++;
}
if (sides == 2)
{
// leaves a square for the next move (could be us!)
openSquares++;
}
}
break;
}
int score = 0; // 0 means it isn't a determinmental move
if (completedSquares == 2)
{
score = 10;
}
else if (completedSquares == 1 && openSquares == 1)
{
score = 10;
}
else if (completedSquares == 1)
{
score = 5;
}
else if (openSquares == 1)
{
score = -5;
}
else if (openSquares == 2)
{
score = -10;
}
return(score);
}
private void HandleClick(MouseEventArgs e)
{
if (e.Button != MouseButtons.Left)
{
return;
}
if (Game == null || Game.GameOver || PlayerSettings.GetPlayerController(Game.CurrentPlayer) == PlayerController.Computer)
{
return;
}
LineInfo clickedLine = new LineInfo();
// first row of dots starts at `PreferedBorder` and is `PreferedDotSize` wide
// give a few pixes of fudge to either side. Use PreferedDotSize/2 as fudge.
int fudge = PreferedDotSize / 2;
for (int i = 0; i < Game.Width; ++i)
{
if (e.X > PreferedBorder + i * PreferedSpacer - fudge &&
e.X < PreferedBorder + i * PreferedSpacer + PreferedDotSize + fudge)
{
clickedLine.LineType = LineType.Vertical;
clickedLine.X = i;
break;
}
if (e.X > PreferedBorder + i * PreferedSpacer + PreferedDotSize)
{
clickedLine.X = i;
}
}
for (int i = 0; i < Game.Height; ++i)
{
if (e.Y > PreferedBorder + i * PreferedSpacer - fudge &&
e.Y < PreferedBorder + i * PreferedSpacer + PreferedDotSize + fudge)
{
if (clickedLine.LineType == LineType.Vertical)
{
clickedLine.LineType = LineType.None;
break;
}
clickedLine.LineType = LineType.Horizontal;
clickedLine.Y = i;
break;
}
if (e.Y > PreferedBorder + i * PreferedSpacer + PreferedDotSize)
{
clickedLine.Y = i;
}
}
// don't allow selection of already played moves
switch (clickedLine.LineType)
{
case LineType.Horizontal:
if (Game.GetHorizontal(clickedLine.X, clickedLine.Y) != Player.Invalid)
{
clickedLine.LineType = LineType.None;
}
break;
case LineType.Vertical:
if (Game.GetVertical(clickedLine.X, clickedLine.Y) != Player.Invalid)
{
clickedLine.LineType = LineType.None;
}
break;
}
if ((clickedLine.LineType == selectedLine.LineType && clickedLine.X == selectedLine.X && clickedLine.Y == selectedLine.Y) ||
(e.Clicks > 1))
{
if (clickedLine.LineType != LineType.None)
{
Game.RecordMove(clickedLine);
}
selectedLine.LineType = LineType.None;
}
else
{
selectedLine.LineType = clickedLine.LineType;
selectedLine.X = clickedLine.X;
selectedLine.Y = clickedLine.Y;
}
Parent.Refresh();
RunComputerPlayers();
}
