void Update()
{
//if it's my turn
if (igameState.isWhiteTurn)
{
UpdateMouseOver();
int x = (int)mouseOver.x;
int y = (int)mouseOver.y;
if (igameState.selectedPiece != null)
{
UpdatePieceDrag(igameState.selectedPiece);
}
if (Input.GetMouseButtonDown(0))
{
SelectPieces(x, y);
}
if (Input.GetMouseButtonUp(0))
{
igameState.Moving((int)igameState.startDrag.x, (int)igameState.startDrag.y, x, y);
}
}
else
{
// test.GetCurrentCheckerBoard(igameState);
// test.selectAction();
aiMove.getAIMove(igameState, mblackPiecePrefab, mwhitePiecePrefab);
}
}
private Minimax makeDescisionTree(CheckerBoard board, GameObject b, GameObject w)
{
Minimax mainTree = gameObject.AddComponent <Minimax>();
mainTree.NewMinimax(null, score(board));
List <Move> moves = new List <Move>();
// get alls move for AI
moves = getAllLegalMovesFor(false, board);
foreach (Move move in moves)
{
// Make second row
CheckerBoard secondstate = gameObject.AddComponent <CheckerBoard>();
copyBoardToBoard(board, secondstate, b, w);
secondstate.Moving(move.currRow, move.currCol, move.movRow, move.movCol);
Minimax firstLayer = gameObject.AddComponent <Minimax>();
firstLayer.NewMinimax(move, score(secondstate));
// get alls move for human
List <Move> secondMoves = getAllLegalMovesFor(true, secondstate);
//deleteFunction(secondstate);
foreach (Move sMove in secondMoves)
{
// Make third row
CheckerBoard thirdstate = gameObject.AddComponent <CheckerBoard>();
copyBoardToBoard(secondstate, thirdstate, b, w);
thirdstate.Moving(sMove.currRow, sMove.currCol, sMove.movRow, sMove.movCol);
Minimax secondLayer = gameObject.AddComponent <Minimax>();
secondLayer.NewMinimax(sMove, score(secondstate));
// get alls move for AI
List <Move> thirdMoves = getAllLegalMovesFor(false, thirdstate);
//deleteFunction(thirdstate);
foreach (Move tMove in thirdMoves)
{
// Make fourth row
CheckerBoard fourthstate = gameObject.AddComponent <CheckerBoard>();
// fourthstate.gameObject.SetActive(false);
copyBoardToBoard(thirdstate, fourthstate, b, w);
fourthstate.Moving(tMove.currRow, tMove.currCol, tMove.movRow, tMove.movCol);
Minimax thirdLayer = gameObject.AddComponent <Minimax>();
thirdLayer.NewMinimax(tMove, score(fourthstate));
//deleteFunction(fourthstate);
secondLayer.addChild(thirdLayer);
}
firstLayer.addChild(secondLayer);
}
mainTree.addChild(firstLayer);
}
return(mainTree);
}
public void selectAction()
{
LinkedList <Node> visited = new LinkedList <Node>();
Node cur = this;
visited.AddLast(this);
// if not win and cur is a leaf
if (gameState.CheckVictory(state) == -9)
{
cur.expand();
Node newNode = cur.select();
gameState.Moving((int)newNode.state[65], (int)newNode.state[66], (int)newNode.state[67], (int)newNode.state[68]);
if (newNode != null)
{
//newNode.GetCurrentCheckerBoard();
visited.AddLast(newNode);
// caculate value of all child node
double value = rollOut(newNode);
foreach (Node node in visited)
{
node.updateStats(value);
}
}
else
{
Debug.LogError("select action selected a null node");
}
}
else
{
double value = 0;
switch (cur.gameState.CheckVictory(state))
{
case 8:
value = 1.0;
break;
case -8:
value = 0.0;
break;
default:
break;
}
foreach (Node node in visited)
{
node.updateStats(value);
}
}
//return
}
public void getAIMove(CheckerBoard board, GameObject b, GameObject w)
{
descisionTree = makeDescisionTree(board, b, w);
lastMove = pickMove();
board.Moving(lastMove.currRow, lastMove.currCol, lastMove.movRow, lastMove.movCol);
}