private bool CheckVerticalWin(int slotColumn, int slotRow, ConnectFourSlot.Colour colour)
{
List<ConnectFourSlot> winningSlots = new List<ConnectFourSlot> { this.Slots[slotColumn,slotRow] };
int row = slotRow + 1; // Check towards the top first
ConnectFourSlot slot = row < Rows ? this.Slots[slotColumn,row] : null;
while (slot != null && slot.Status == colour)
{
winningSlots.Add(slot);
row++;
slot = row < Rows ? this.Slots[slotColumn,row] : null;
}
row = slotRow - 1; // Check towards the bottom now
slot = row >= 0 ? this.Slots[slotColumn,row] : null;
while (slot != null && slot.Status == colour)
{
winningSlots.Add(slot);
row--;
slot = row >= 0 ? this.Slots[slotColumn,row] : null;
}
if (winningSlots.Count >= 4)
{
this.HighlightWinningSlots(winningSlots);
return true;
}
return false;
}
// TRBL = Top Right Bottom Left
private bool CheckTRBLDiagonalWin(int slotColumn, int slotRow, ConnectFourSlot.Colour colour)
{
List<ConnectFourSlot> winningSlots = new List<ConnectFourSlot> { this.Slots[slotColumn,slotRow] };
int row = slotRow + 1; // Check towards the top right first
int col = slotColumn + 1;
ConnectFourSlot slot = (row < Rows && col < Columns) ? this.Slots[col,row] : null;
while (slot != null && slot.Status == colour)
{
winningSlots.Add(slot);
row++;
col++;
slot = (row < Rows && col < Columns) ? this.Slots[col,row] : null;
}
row = slotRow - 1; // Check towards the bottom left now
col = slotColumn - 1;
slot = (row >= 0 && col >= 0) ? this.Slots[col,row] : null;
while (slot != null && slot.Status == colour)
{
winningSlots.Add(slot);
row--;
col--;
slot = (row >= 0 && col >= 0) ? this.Slots[col,row] : null;
}
if (winningSlots.Count >= 4)
{
// Only highlight for players in the game
if (this.Playing)
{ this.HighlightWinningSlots(winningSlots); }
return true;
}
return false;
}
private bool CheckHorizontalWin(int slotColumn, int slotRow, ConnectFourSlot.Colour colour)
{
List<ConnectFourSlot> winningSlots = new List<ConnectFourSlot> { this.Slots[slotColumn,slotRow] };
int col = slotColumn + 1; // Check towards the right first
ConnectFourSlot slot = col < Columns ? this.Slots[col,slotRow] : null;
while (slot != null && slot.Status == colour)
{
winningSlots.Add(slot);
col++;
slot = col < Columns ? this.Slots[col,slotRow] : null;
}
col = slotColumn - 1; // Check towards the left now
slot = col >= 0 ? this.Slots[col,slotRow] : null;
while (slot != null && slot.Status == colour)
{
winningSlots.Add(slot);
col--;
slot = col >= 0 ? this.Slots[col,slotRow] : null;
}
if (winningSlots.Count >= 4)
{
this.HighlightWinningSlots(winningSlots);
return true;
}
return false;
}
