// @return True if the specified color can play in the given Point
public bool IsValidPlay(Vector2 point, GoColor colorStone)
{
int x = (int)point.x;
int y = (int)point.y;
// Check: If Point is empty. If not, we cannot play there
if (!IsPointEmpty(point))
{
Debug.Log("[GB] Could not create @ ( " + x + ", " + y + "); already occupied");
return(false);
}
// Check: If new Stone would be immediately be captured
if (IsGroupCaptured(point, colorStone))
{
// If a Stone would immediately be captured, we can play it
// IFF that move would capture enemy Stone(s)
// AND we aren't violating the rule of Ko
List <Vector2> list_blocked = new List <Vector2>();
list_blocked.Add(point);
// Check adjacent spots to see if we can capture enemy Stone(s)
List <Vector2> list_adjacent = GetAdjacentPoints(point);
bool b_capture_detected = false;
foreach (Vector2 point_adj in list_adjacent)
{
GoPoint gp_adj = gridPoints[(int)point_adj.x, (int)point_adj.y];
// We only care about checking against enemy stones
GoStone stone_adj = gp_adj.GetStone();
if (stone_adj.Color != colorStone)
{
b_capture_detected |= IsGroupCaptured(point_adj, stone_adj.Color, list_blocked);
}
}
// If no captured were found, play is illegal
if (!b_capture_detected)
{
Debug.Log("[GB] Could not create @ ( " + x + ", " + y + "); illegal move (surrounded)");
return(false);
}
// Check for Ko
else
{
GoTurn turn_prev = gameStateManager.GetTurnPrev();
if (turn_prev.piecesCaptured == 1 && IsGroupCaptured(turn_prev.pointPlay, turn_prev.turnColor, list_blocked))
{
Debug.Log("[GB] Could not create @ ( " + x + ", " + y + "); illegal move (Ko)");
return(false);
}
}
}
return(true);
}
// Use this for initialization
void Start()
{
// Tell our Board about our existence
gameBoard.SetGameManager(this);
// Initialize score
ResetScore();
// Create initial turn data
m_turnDataCurr = new GoTurn(m_turnNumber, CurrentColor);
}
//
void EndTurn()
{
// Store turn data
m_listPlayHistory.Add(m_turnDataCurr);
// Change Turn
mb_blacksTurn = !mb_blacksTurn;
m_turnNumber++;
m_turnDataCurr = new GoTurn(m_turnNumber, CurrentColor);
// Update HUD
UpdateHud();
}
