/** Returns value > 0 if lift is reachable. */
public static int liftReachable(Board board, int liftx, int lifty) {
Cell up = board.get(liftx, lifty + 1);
Cell down = board.get(liftx, lifty - 1);
Cell left = board.get(liftx - 1, lifty);
Cell right = board.get(liftx + 1, lifty);
return cell2int(up) + cell2int(down) + cell2int(left) + cell2int(right);
}
private void startGame() {
int turn = 0;
gameOver = false;
board = new Board(BOARD_SIZE, BOARD_SIZE);
// TODO clean up this logic
while (!gameOver) {
try {
PlayerHandler currentPlayer = players.get(turn % MAX_PLAYERS);
PlayerHandler otherPlayer = players.get((turn + 1) % MAX_PLAYERS);
System.out.println("Notifying player " + currentPlayer.piece + " to make move");
currentPlayer.output.writeObject(true);
System.out.println("Waiting for player " + currentPlayer.piece + " to make move");
GamePacket packet = (GamePacket) currentPlayer.input.readObject();
if (packet.getGamePiece() == currentPlayer.piece) {
if (isValidMove(packet)) {
currentPlayer.output.writeObject(false);
currentPlayer.output.writeObject(packet);
otherPlayer.output.writeObject(packet);
System.out.println("Valid move");
if (board.isWinner(packet.getGamePiece())) {
System.out.println("Player " + currentPlayer.piece + " wins!");
currentPlayer.output.writeObject("You Win Player " + currentPlayer.piece);
otherPlayer.output.writeObject("You lose Player " + otherPlayer.piece);
endGame();
}
board.display();
turn++;
if (turn == (BOARD_SIZE * BOARD_SIZE)) {
for (PlayerHandler p : players) {
p.output.writeObject("Tie Game!");
}
endGame();
}
} else {
System.out.println("Invalid move");
}
} else {
System.out.println("Expected a move from " + currentPlayer.piece);
}
} catch (IOException ioex) {
System.err.println("Error writing to player socket");
} catch (ClassNotFoundException cnfex) {
System.err.println("Invalid object type found");
}
}
}
private boolean isValidMove(GamePacket packet) {
char piece = packet.getGamePiece();
int x = packet.getxPos();
int y = packet.getyPos();
return board.insertPos(x, y, piece);
}
public boolean step(Position to) {
if (to.isNull()) {
return false;
}
int tmpRow = super.position.getRow() - to.getRow();
int tmpColumn = super.position.getColumn() - to.getColumn();
boolean flag = (tmpRow == 0 || tmpColumn == 0);
if (!Board.isEmpty(to)) {
return flag && (Board.getColour(to) != super.getColour());
}
return flag;
}
@Override
public Piece givePiece(Board board, Piece[] pieces) {
List<Piece> nonWinning = new ArrayList<>(Arrays.asList(pieces));
Streak[] streaks = board.findStreaks();
for (Streak streak : streaks) {
if (streak.getLength() == 3) {
Piece streakPiece = new Piece(streak.getType());
// Remove matching from nonWinning list
LinkedList<Piece> winning = new LinkedList<>();
for (Piece p : nonWinning) {
if (Piece.getSimilarities(p, streakPiece) != 0) {
winning.add(p);
}
}
nonWinning.removeAll(winning);
}
}
if (nonWinning.isEmpty()) {
// System.out.println("Must give a winning piece");
return super.givePiece(board, pieces);
} else {
// System.out.println("Non winning piece");
return nonWinning.get(0);
}
}
/*
* Creates a tree of moves to take with their evaluated scores
*/
public void createSearchSpace(int level, State state, Board board, boolean myTurn) {
int[] openColumns = board.getOpenColumns();
state.nextMoves = new State[openColumns.length];
for (int i = 0; i < openColumns.length; i++) {
int move = openColumns[i];
board.handleMove(myTurn, move);
int score = heuristic.getScore(board);
state.nextMoves[i] = new State(move, board, score);
if (level != depth && board.hasWinner() == false)
createSearchSpace(level + 1, state.nextMoves[i], board, !myTurn);
board.undoMove(move);
board.setHasWinner(false);
}
}
@Override
public Board yourMove(Piece givenPiece, Board board, Piece[] piecesAvailable) {
Streak[] streaks = board.findStreaks();
for (Streak streak : streaks) {
if (streak.getLength() == 3
&& Piece.getSimilarities(givenPiece, new Piece(streak.getType())) != 0) {
// Place piece
// Find free places
int[] placeFree = new int[] {0, 1, 2, 3};
for (int i = 0; i < 4; i++) {
Piece p = null;
switch (streak.getOrientation()) {
case HORIZONTAL:
p = board.getPiece(streak.getNo(), i);
break;
case VERTICAL:
p = board.getPiece(i, streak.getNo());
break;
case DIAGONAL:
if (streak.getNo() == 0) {
p = board.getPiece(i, i);
} else {
p = board.getPiece(3 - i, i);
}
}
if (p != null) {
placeFree[i] = -1;
}
}
for (int place : placeFree) {
if (place >= 0) {
if (streak.getOrientation() == Streak.Orientation.HORIZONTAL) {
board.setPiece(streak.getNo(), place, givenPiece);
} else if (streak.getOrientation() == Streak.Orientation.VERTICAL) {
board.setPiece(place, streak.getNo(), givenPiece);
} else {
if (streak.getNo() == 0) {
board.setPiece(place, place, givenPiece);
} else {
board.setPiece(3 - place, place, givenPiece);
}
}
}
}
return board;
}
}
return super.yourMove(givenPiece, board, piecesAvailable);
}
private int controlBorders(int hv) {
int heurVal = hv;
for (int row = 2; row < Board.SIZE - 3; row++) {
if (board.getField()[row][0] == myTile) {
heurVal += 5;
}
if (board.getField()[row][Board.SIZE - 1] == myTile) {
heurVal += 5;
}
}
for (int col = 2; col < Board.SIZE - 3; col++) {
if (board.getField()[0][col] == myTile) {
heurVal += 5;
}
if (board.getField()[Board.SIZE - 1][col] == myTile) {
heurVal += 5;
}
}
return heurVal;
}
private int getHeuristicalValue(int row, int col) {
Tile tile = board.getTile(row, col);
switch (tile) {
case PLAYER1:
return -1 * HEURISTICAL_VALUES[row][col];
case PLAYER2:
return HEURISTICAL_VALUES[row][col];
default:
return 0;
}
}
public int extraHV() {
int heurVal = board.getPossiblePositions(myTile).size() * 3;
if (heurVal == 0 && board.getPossiblePositions(myTile.getOpposite()).isEmpty()) {
int myCount = 0, otherCount = 0;
for (int row = 0; row < Board.SIZE; row++) {
for (int col = 0; col < Board.SIZE; col++) {
if (board.getField()[row][col] == myTile) {
myCount++;
} else if (board.getField()[row][col] == myTile.getOpposite()) {
otherCount++;
}
}
if (myCount - otherCount < 0) {
return -10000;
} else if (myCount - otherCount > 0) {
return 10000;
}
}
}
heurVal += controlCorners(heurVal) + controlBorders(heurVal);
return heurVal;
}
public void setChilds() {
int myRow, myCol;
for (int row = 0; row < Board.SIZE; row++) {
for (int col = 0; col < Board.SIZE; col++) {
if (board.getTile(row, col) == myTile.getOpposite()) {
for (Direction dir : Direction.values()) {
myRow = row + dir.getRow();
myCol = col + dir.getCol();
if (!(myRow < 0 || myCol < 0 || myRow >= Board.SIZE || myCol >= Board.SIZE)
&& board.getTile(myRow, myCol) == Tile.EMPTY) {
if (board.possibleChange(myRow, myCol, myTile, dir.getOpposite())) {
childs.add(
getNewChild(
board.putTile(myRow, myCol, myTile.getOpposite()),
new Position(myRow, myCol),
myTile.getOpposite()));
}
}
}
}
}
}
}
/*
* Sets the white Pieces on the board
*/
private static void placeWhitePieces(PlayerSet whiteSet, Board board) {
Space currentSpace = board.getSpace(Rank.One, File.A);
Iterator<Piece> it = whiteSet.iterator();
// set the "first" row (Rank 1) of white pieces left to right
currentSpace.changePiece(it.next());
for (int i = 0; i < 7; i++) {
currentSpace = currentSpace.getSpaceRight();
currentSpace.changePiece(it.next());
}
currentSpace = currentSpace.getSpaceForward();
// set the "second" row ("Rank 2) of white pieces from right to left
for (int i = 0; i < 8; i++) {
currentSpace.changePiece(it.next());
currentSpace = currentSpace.getSpaceLeft();
}
}
/*
* Sets the black pieces on the board
*/
private static void placeBlackPieces(PlayerSet blackSet, Board board) {
Space currentSpace = board.getSpace(Rank.Eight, File.A);
Iterator<Piece> it = blackSet.iterator();
// set the "first" row(Rank 8) of black pieces from left to right
currentSpace.changePiece(it.next());
for (int i = 0; i < 7; i++) {
currentSpace = currentSpace.getSpaceRight();
currentSpace.changePiece(it.next());
}
currentSpace = currentSpace.getSpaceBackward();
// set the "second" row(Rank 7) of black pieces from right to left
for (int i = 0; i < 8; i++) {
currentSpace.changePiece(it.next());
currentSpace = currentSpace.getSpaceLeft();
}
}
public void alphabetaTT(char[][] map, int d, double a, double b, boolean isHome, Move[] stack) {
double ev_tem = 0;
ev_tem = ev2(map, isHome);
if (d == MAX_DEPTH || Math.abs(ev_tem) == MAX_SCORE) {
stack[d].score = ev_tem;
return;
}
Board board = new Board(map, isHome, "alphabetatt");
TTEntry tte = tt.getEntry(board.getHashKey());
if (tte != null && tte.getDepth() <= d) {
if (tte.getType() == TTEntry.NT.EXACT) {
stack[d].score = tte.getScore();
return;
}
if (tte.getType() == TTEntry.NT.LOWERBOUND && tte.getScore() > a) a = tte.getScore();
else if (tte.getType() == TTEntry.NT.UPPERBOUNT && tte.getScore() < b) b = tte.getScore();
if (a >= b) {
stack[d].score = tte.getScore();
return;
}
}
if (board.getSize() == 0) System.out.println(isHome + "\t" + d);
Move move;
if (isHome) {
double v = Double.NEGATIVE_INFINITY;
while (board.hasNext()) {
if (FIRST_LAYER_DEBUG == 1 && d == 0)
System.out.println("Home: 0 Total: " + board.getSize());
move = board.next();
map[move.row1][move.col1] = homeSym;
map[move.row2][move.col2] = homeSym;
if (d + 1 == MAX_DEPTH) {
stack[d + 1].set(move.row1, move.col1, move.row2, move.col2);
}
alphabetaTT(map, d + 1, a, b, false, stack);
if (stack[d + 1].score > v) {
v = stack[d + 1].score;
stack[d].set(move.row1, move.col1, move.row2, move.col2, v);
}
map[move.row1][move.col1] = emptySym;
map[move.row2][move.col2] = emptySym;
a = Math.max(a, stack[d].score);
if (stack[d].score >= b || stack[d].score == MAX_SCORE) return;
}
if (stack[d].score < a)
tt.store(new TTEntry(board.getHashKey(), stack[d].score, TTEntry.NT.LOWERBOUND, d));
else if (stack[d].score > b)
tt.store(new TTEntry(board.getHashKey(), stack[d].score, TTEntry.NT.UPPERBOUNT, d));
return;
} else {
double v = Double.POSITIVE_INFINITY;
while (board.hasNext()) {
if (FIRST_LAYER_DEBUG == 1 && d == 0)
System.out.println("Away: 0 Total: " + board.getSize());
move = board.next();
map[move.row1][move.col1] = awaySym;
map[move.row2][move.col2] = awaySym;
if (d + 1 == MAX_DEPTH) {
stack[d + 1].set(move.row1, move.col1, move.row2, move.col2);
}
alphabetaTT(map, d + 1, a, b, true, stack);
if (stack[d + 1].score < v) {
v = stack[d + 1].score;
stack[d].set(move.row1, move.col1, move.row2, move.col2, v);
}
map[move.row1][move.col1] = emptySym;
map[move.row2][move.col2] = emptySym;
b = Math.min(b, stack[d].score);
if (stack[d].score <= a || stack[d].score == -MAX_SCORE) return;
}
if (stack[d].score < a)
tt.store(new TTEntry(board.getHashKey(), stack[d].score, TTEntry.NT.LOWERBOUND, d));
else if (stack[d].score > b)
tt.store(new TTEntry(board.getHashKey(), stack[d].score, TTEntry.NT.UPPERBOUNT, d));
return;
}
}
@Override
public void run() {
killermove = new int[Board.SIZE][2];
tt = new Transposition[TT_SIZE];
// Decay the history values
for (int i = 0; i < 2; i++) {
for (int j = 0; j < Board.SIZE; j++) {
history[i][j] /= 2;
bfboard[i][j] /= 2;
}
}
//
// endTime = 15000; // for testing
//
long lastItStartTime = 0, lastItTime = 0;
int val = 0, alpha = N_INF, beta = P_INF;
boolean wonlost = false;
//
int approxMovesMade = (Board.REAL_SIZE - initBoard.freeSquares) / 2;
endTime = Math.max((initBoard.timeLeft() / (25 + approxMovesMade)), BASE_TIME);
System.out.println(":: End time-span: " + endTime);
// No need to search deep the first few moves
if (initBoard.freeSquares >= 60) MAX_DEPTH = 8;
else MAX_DEPTH = P_INF;
//
endTime += System.currentTimeMillis();
while (maxDepth < MAX_DEPTH && !forceHalt && !interupted) {
maxDepth += 1;
System.out.println(":: Max depth: " + maxDepth);
prevBestMove = bestMove;
lastItStartTime = System.currentTimeMillis();
//
val = alphaBeta(initBoard, maxDepth, alpha, beta, myPlayer, -1, false);
if (aspiration) {
if (val >= beta) {
System.out.println(":: Re-search required, val(" + val + ") >= beta.");
researches++;
alpha = val;
beta = P_INF;
val = alphaBeta(initBoard, maxDepth, alpha, beta, myPlayer, -1, false);
} else if (val <= alpha) {
researches++;
System.out.println(":: Re-search required, val(" + val + ") <= alpha.");
alpha = N_INF;
beta = val;
val = alphaBeta(initBoard, maxDepth, alpha, beta, myPlayer, -1, false);
}
DELTA = Math.max(Math.abs(val / 2) - 1, DEFAULT_DELTA);
//
alpha = val - DELTA;
beta = val + DELTA;
}
//
System.out.println(" - Best value so far: " + val);
System.out.println(" - Best move so far: " + bestMove);
System.out.println(" - Nodes visited: " + decForm.format(nodes));
// We win/lose
if (Math.abs(val) > FW1_VAL) {
wonlost = true;
break;
}
// lastItTime = System.currentTimeMillis() - lastItStartTime;
// // We don't have enough time for the next iteration....
// if (endTime - System.currentTimeMillis() < lastItTime * 3)
// break;
}
// We can still use the current val if the result is better in vase of forced halt
if (forceHalt || interupted) {
bestMove = prevBestMove;
maxDepth--;
}
//
if (!wonlost) {
numMoves++;
totalNodes += nodes;
totalDepth += maxDepth;
}
//
System.out.println(":: Forced halt: " + forceHalt);
System.out.println(":: TT Lookups: " + decForm.format(tt_lookups));
System.out.println(":: Collisions: " + decForm.format(collisions));
System.out.println(":: Nodes visited: " + decForm.format(nodes));
System.out.println("--------------------------------");
// Free the transposition table for the gc.
tt = null;
if (!interupted && parallel) callback.makeMove(bestMove);
}
private int alphaBeta(
Board board, int depth, int alpha, int beta, int player, int move, boolean nullMove) {
if (forceHalt || interupted) return 0;
// if (timeCheck == 0) {
// // Check if still time left.
// if (System.currentTimeMillis() >= endTime) {
// forceHalt = true;
// return 0;
// }
// timeCheck = TIME_CHECK_INT;
// }
// timeCheck--;
nodes++;
// For win/loss depth
int inv_depth = maxDepth - depth, value = N_INF, bestValue = N_INF;
int capsw, capsb, olda = alpha, oldb = beta;
int plyBestMove = -1, hashPos = 0, color = (player == myPlayer) ? 1 : -1;
boolean valuefound = false, collision = false;
int[] currentMoves;
//
Transposition tp = null;
if (transpositions) {
hashPos = getHashPos(board.zobristHash);
tp = tt[hashPos];
// Check if present in transposition table
if (tp != null) {
tt_lookups++;
// Position was evaluated previously
// Check for a collision
if (tp.hash != board.zobristHash) {
collisions++;
collision = true;
} else if (depth <= tp.depth) {
if (tp.flag == Transposition.REAL) return tp.value;
if (tp.flag == Transposition.L_BOUND && tp.value > alpha) alpha = tp.value;
else if (tp.flag == Transposition.U_BOUND && tp.value < beta) beta = tp.value;
if (alpha >= beta) return tp.value;
}
}
}
// Check if position is terminal.
if (move != -1) {
int winstate = board.checkWin(board.board[move]);
if (winstate != Board.NONE_WIN) {
if (winstate == player) {
// Prefer shallow wins!
bestValue = (WIN_VAL - (D_DECR * inv_depth));
valuefound = true;
} else if (winstate == Board.DRAW) {
return 0;
} else {
// Deeper losses are "less worse" :) than shallow losses
bestValue = -(WIN_VAL - (D_DECR * inv_depth));
return bestValue;
}
}
}
// Leaf-node, evaluate the node
if (depth == 0 && !valuefound) {
bestValue = color * evaluate(board, inv_depth);
valuefound = true;
} else if (!valuefound) {
// Don't do null moves at the first move, it messes up the swap rule
if (nullmoves && !nullMove && depth < maxDepth && depth > R && !board.firstMove) {
board.pass();
// Check for a null-move cut-off
value = -alphaBeta(board, depth - 1 - R, -beta, -alpha, getOpponent(player), -1, true);
board.undoPass();
if (value >= beta) {
return beta;
}
}
//
if (tp == null || collision) {
currentMoves = board.getAvailableMoves(killermove[inv_depth]);
} else {
currentMoves =
board.getAvailableMoves(
killermove[inv_depth][0], killermove[inv_depth][1], tp.bestMove);
}
int startindex = board.startindex, currentmove;
double maxHistVal = 1.;
for (int i = 0; i < currentMoves.length; i++) {
// Try the killer and transposition moves first, then try the hh moves
if (i >= startindex && maxHistVal > 0. && historyHeuristic) {
board.getNextMove(history[player - 1], bfboard[player - 1], currentMoves, i);
// If the previous max history value was 0, we can just follow the indexed list
maxHistVal = board.maxHistVal;
}
currentmove = currentMoves[i];
if (board.doMove(currentmove, player)) {
// Returns false if suicide
if (board.capturePieces(currentmove)) {
//
capsw = board.playerCaps[0];
capsb = board.playerCaps[1];
// Keep track of the captured pieces.
captures[0] += capsw;
captures[1] += capsb;
//
value =
-alphaBeta(
board, depth - 1, -beta, -alpha, getOpponent(player), currentmove, nullMove);
//
if (value > bestValue) {
// for detemining the move to return
if (depth == maxDepth && value > bestValue) {
bestMove = currentmove;
}
//
bestValue = value;
plyBestMove = currentmove;
}
//
alpha = Math.max(alpha, bestValue);
// Substract the captures from this move
captures[0] -= capsw;
captures[1] -= capsb;
board.undoMove();
// Update the butterfly board for the relative history heuristic
bfboard[player - 1][currentmove]++;
if (alpha >= beta) {
if (killermoves && currentmove != killermove[inv_depth][0]) {
killermove[inv_depth][1] = killermove[inv_depth][0];
killermove[inv_depth][0] = currentmove;
}
break;
}
}
} else {
System.err.println("error making move!");
}
}
}
// Update the history heuristics for move-ordering
if (plyBestMove > -1) history[player - 1][plyBestMove]++;
// Replace if deeper or doesn't exist
if (transpositions && (tp == null || (collision && depth > tp.depth))) {
tp = new Transposition();
tt[hashPos] = tp;
tp.bestMove = plyBestMove;
tp.depth = depth;
tp.hash = board.zobristHash;
//
if (bestValue <= olda) {
tp.flag = Transposition.U_BOUND;
} else if (bestValue >= oldb) {
tp.flag = Transposition.L_BOUND;
} else {
tp.flag = Transposition.REAL;
}
tp.value = bestValue;
}
return bestValue;
}
/*
* Constructor
*/
public MinimaxAgent(Board board, int numToWin) {
this.board = board;
heuristic = new Heuristic(numToWin);
if (board.getHeight() > 10 && board.getWidth() > 10) depth = 4;
}
@Test
public void test() {
Board test_board; // Spielbrett
test_board = new Board(7, 6);
// Test 1 : Spieler X gewinnt in einer Spalte
test_board.makeDrop(Player.X, 0);
test_board.makeDrop(Player.X, 0);
test_board.makeDrop(Player.X, 0);
test_board.makeDrop(Player.X, 0);
assertTrue("Patt: findWinner() gibt Player.X", test_board.findWinner() == Player.X);
// Test 2 : Spieler O gewinnt in einer Spalte
test_board = new Board(7, 6);
test_board.makeDrop(Player.O, 0);
test_board.makeDrop(Player.O, 0);
test_board.makeDrop(Player.O, 0);
test_board.makeDrop(Player.O, 0);
assertTrue("Patt: findWinner() gibt Player.=O", test_board.findWinner() == Player.O);
// Test 3 : Spieler X gewinnt in einer Zeile
test_board = new Board(7, 6);
test_board.makeDrop(Player.X, 1);
test_board.makeDrop(Player.X, 2);
test_board.makeDrop(Player.X, 3);
test_board.makeDrop(Player.X, 4);
assertTrue("Patt: findWinner() gibt Player.X", test_board.findWinner() == Player.X);
// Test 4 : Spieler O gewinnt in einer Zeile
test_board = new Board(7, 6);
test_board.makeDrop(Player.O, 1);
test_board.makeDrop(Player.O, 2);
test_board.makeDrop(Player.O, 3);
test_board.makeDrop(Player.O, 4);
assertTrue("Patt: findWinner() gibt Player.=O", test_board.findWinner() == Player.O);
// Test 5 : Spieler X gewinnt diagonal
test_board = new Board(7, 6);
test_board.makeDrop(Player.X, 0);
test_board.makeDrop(Player.O, 1);
test_board.makeDrop(Player.X, 1);
test_board.makeDrop(Player.O, 2);
test_board.makeDrop(Player.O, 2);
test_board.makeDrop(Player.X, 2);
test_board.makeDrop(Player.O, 3);
test_board.makeDrop(Player.O, 3);
test_board.makeDrop(Player.O, 3);
test_board.makeDrop(Player.X, 3);
assertTrue("Patt: findWinner() gibt Player.=X", test_board.findWinner() == Player.X);
// Test 6 : Spieler O gewinnt diagonal
test_board = new Board(7, 6);
test_board.makeDrop(Player.O, 0);
test_board.makeDrop(Player.X, 1);
test_board.makeDrop(Player.O, 1);
test_board.makeDrop(Player.X, 2);
test_board.makeDrop(Player.X, 2);
test_board.makeDrop(Player.O, 2);
test_board.makeDrop(Player.X, 3);
test_board.makeDrop(Player.X, 3);
test_board.makeDrop(Player.X, 3);
test_board.makeDrop(Player.O, 3);
assertTrue("Patt: findWinner() gibt Player.=X", test_board.findWinner() == Player.O);
// Test 7 Spielsituation: erste Möglichkeit Patt
test_board = new Board(7, 6);
// Spalte 1 füllen
test_board.makeDrop(Player.X, 0);
test_board.makeDrop(Player.O, 0);
test_board.makeDrop(Player.O, 0);
test_board.makeDrop(Player.X, 0);
test_board.makeDrop(Player.O, 0);
test_board.makeDrop(Player.O, 0);
// Spalte 2 füllen
test_board.makeDrop(Player.O, 1);
test_board.makeDrop(Player.X, 1);
test_board.makeDrop(Player.X, 1);
test_board.makeDrop(Player.O, 1);
test_board.makeDrop(Player.X, 1);
test_board.makeDrop(Player.X, 1);
// Spalte3 füllen
test_board.makeDrop(Player.X, 2);
test_board.makeDrop(Player.O, 2);
test_board.makeDrop(Player.O, 2);
test_board.makeDrop(Player.X, 2);
test_board.makeDrop(Player.O, 2);
test_board.makeDrop(Player.O, 2);
// Spalte 4 füllen
test_board.makeDrop(Player.O, 3);
test_board.makeDrop(Player.X, 3);
test_board.makeDrop(Player.X, 3);
test_board.makeDrop(Player.O, 3);
test_board.makeDrop(Player.X, 3);
test_board.makeDrop(Player.X, 3);
// Spalte 5 füllen
test_board.makeDrop(Player.X, 4);
test_board.makeDrop(Player.O, 4);
test_board.makeDrop(Player.O, 4);
test_board.makeDrop(Player.X, 4);
test_board.makeDrop(Player.O, 4);
test_board.makeDrop(Player.O, 4);
// Spalte 6 füllen
test_board.makeDrop(Player.O, 5);
test_board.makeDrop(Player.X, 5);
test_board.makeDrop(Player.X, 5);
test_board.makeDrop(Player.O, 5);
test_board.makeDrop(Player.X, 5);
test_board.makeDrop(Player.X, 5);
// Spalte 7 füllen
test_board.makeDrop(Player.X, 6);
test_board.makeDrop(Player.O, 6);
test_board.makeDrop(Player.O, 6);
test_board.makeDrop(Player.X, 6);
test_board.makeDrop(Player.O, 6);
test_board.makeDrop(Player.O, 6);
// kontrolliert, ob das gewünschte Ergebnis in diesem Testfall eintritt
assertTrue("Patt: findWinner() soll null zurückgeben", test_board.findWinner() == null);
assertTrue("Patt: isFull() gibt true zurück", test_board.isFull());
assertTrue("Patt: isGameDraw() gibt true zurück", test_board.isGameDraw());
assertFalse("Patt: hasWinner() gibt false zurück", test_board.hasWinner());
assertTrue("Patt: isEndSituation() gibt true zurück", test_board.isEndSituation());
// Test 7 Spielsituation: zweite Möglichkeit für einen Patt
test_board = new Board(7, 6);
// Spalte 1 füllen
test_board.makeDrop(Player.X, 0);
test_board.makeDrop(Player.O, 0);
test_board.makeDrop(Player.O, 0);
test_board.makeDrop(Player.X, 0);
test_board.makeDrop(Player.O, 0);
test_board.makeDrop(Player.X, 0);
// Spalte 2 füllen
test_board.makeDrop(Player.O, 1);
test_board.makeDrop(Player.X, 1);
test_board.makeDrop(Player.X, 1);
test_board.makeDrop(Player.X, 1);
test_board.makeDrop(Player.O, 1);
test_board.makeDrop(Player.X, 1);
// Spalte3 füllen
test_board.makeDrop(Player.X, 2);
test_board.makeDrop(Player.X, 2);
test_board.makeDrop(Player.O, 2);
test_board.makeDrop(Player.X, 2);
test_board.makeDrop(Player.O, 2);
test_board.makeDrop(Player.X, 2);
// Spalte 4 füllen
test_board.makeDrop(Player.O, 3);
test_board.makeDrop(Player.X, 3);
test_board.makeDrop(Player.X, 3);
test_board.makeDrop(Player.O, 3);
test_board.makeDrop(Player.X, 3);
test_board.makeDrop(Player.O, 3);
// Spalte 5 füllen
test_board.makeDrop(Player.X, 4);
test_board.makeDrop(Player.O, 4);
test_board.makeDrop(Player.O, 4);
test_board.makeDrop(Player.X, 4);
test_board.makeDrop(Player.X, 4);
test_board.makeDrop(Player.O, 4);
// Spalte 6 füllen
test_board.makeDrop(Player.O, 5);
test_board.makeDrop(Player.X, 5);
test_board.makeDrop(Player.O, 5);
test_board.makeDrop(Player.X, 5);
test_board.makeDrop(Player.O, 5);
test_board.makeDrop(Player.X, 5);
// Spalte 7 füllen
test_board.makeDrop(Player.O, 6);
test_board.makeDrop(Player.O, 6);
test_board.makeDrop(Player.O, 6);
test_board.makeDrop(Player.X, 6);
test_board.makeDrop(Player.O, 6);
test_board.makeDrop(Player.X, 6);
// kontrolliert, ob das gewünschte Ergebnis in diesem Testfall eintritt
assertTrue("Patt: findWinner() soll null zurückgeben", test_board.findWinner() == null);
assertTrue("Patt: isFull() gibt true zurück", test_board.isFull() == true);
assertTrue("Patt: isGameDraw() gibt true zurück", test_board.isGameDraw() == true);
// Test 9 : Spieler wirft in eine volle Spalte
test_board = new Board(7, 6);
test_board.makeDrop(Player.X, 6);
test_board.makeDrop(Player.O, 6);
test_board.makeDrop(Player.O, 6);
test_board.makeDrop(Player.X, 6);
test_board.makeDrop(Player.O, 6);
test_board.makeDrop(Player.O, 6);
test_board.makeDrop(Player.O, 6);
assertTrue(
"Spalte ist voll: findFirstEmptyField gibt null zurück",
test_board.findFirstEmtpyFieldInColumn(6) == null);
// Test 10 : Spieler wirft in eine falsche Spalte (7)
test_board = new Board(7, 6);
test_board.makeDrop(Player.X, 7);
assertTrue(
"falsche Spalte: findFirstEmptyField gibt null zurück",
test_board.findFirstEmtpyFieldInColumn(7) == null);
}
private int controlCorners(int hv) {
int heurVal = hv;
if (board.getField()[0][0] == Tile.EMPTY) {
if (board.getField()[0][1] == myTile) {
heurVal -= 10;
}
if (board.getField()[1][1] == myTile) {
heurVal -= 10;
}
if (board.getField()[1][0] == myTile) {
heurVal -= 10;
}
} else if (board.getField()[0][0] == myTile) {
heurVal += 50;
}
if (board.getField()[Board.SIZE - 1][0] == Tile.EMPTY) {
if (board.getField()[Board.SIZE - 1][1] == myTile) {
heurVal -= 10;
}
if (board.getField()[Board.SIZE - 2][1] == myTile) {
heurVal -= 10;
}
if (board.getField()[Board.SIZE - 2][0] == myTile) {
heurVal -= 10;
}
} else if (board.getField()[Board.SIZE - 1][0] == myTile) {
heurVal += 50;
}
if (board.getField()[0][Board.SIZE - 1] == Tile.EMPTY) {
if (board.getField()[1][Board.SIZE - 1] == myTile) {
heurVal -= 10;
}
if (board.getField()[0][Board.SIZE - 2] == myTile) {
heurVal -= 10;
}
if (board.getField()[1][Board.SIZE - 2] == myTile) {
heurVal -= 10;
}
} else if (board.getField()[0][Board.SIZE - 1] == myTile) {
heurVal += 50;
}
if (board.getField()[Board.SIZE - 1][Board.SIZE - 1] == Tile.EMPTY) {
if (board.getField()[Board.SIZE - 2][Board.SIZE - 1] == myTile) {
heurVal -= 10;
}
if (board.getField()[Board.SIZE - 1][Board.SIZE - 2] == myTile) {
heurVal -= 10;
}
if (board.getField()[Board.SIZE - 2][Board.SIZE - 2] == myTile) {
heurVal -= 10;
}
} else if (board.getField()[Board.SIZE - 1][Board.SIZE - 1] == myTile) {
heurVal += 50;
}
return heurVal;
}