Examples of BlockadeBoardPosition

com.barrybecker4.game.twoplayer.blockade.board.BlockadeBoardPosition
The BlockadeBoardPosition describes the physical markers at a location on the board. It can be empty or occupied. If occupied, then one of the BlockadePieces is there and it has an owner. BlockadeBoardPositions may have BlockadeWalls present when unoccupied. Splitting out PathCache class did not seem to work. Path caching won't work because a cached path may be lengthened during search when walls are placed, but then never shortened again after walls are removed. @see BlockadeBoard @author Barry Becker

Examples of com.barrybecker4.game.twoplayer.blockade.board.BlockadeBoardPosition

    }


    private void checkNorthOptions(boolean eastOpen, boolean westOpen) {
        boolean northOpen = false;
        if (northPos != null) {
            BlockadeBoardPosition northEastPos = position.getNeighbor(Direction.NORTH_EAST, board);
            northOpen = (!northPos.isSouthBlocked()) ;                                             // N
            addIf1HopNeeded(northOpen, northPos, -1, 0);
            addIfDiagonalLegal(northEastPos, eastOpen && !northEastPos.isSouthBlocked(),
                                northOpen && !northPos.isEastBlocked());                          // NE
        }


        BlockadeBoardPosition northNorthPos = position.getNeighbor(Direction.NORTH_NORTH, board);
        if (northNorthPos != null) {
            Location toLocation = fromLocation.incrementOnCopy(-2, 0);
            addIf2HopLegal(northOpen, northNorthPos.isSouthBlocked(), toLocation);                 // NN
        }


        BlockadeBoardPosition northWestPos = position.getNeighbor(Direction.NORTH_WEST, board);
        if (northWestPos != null) {
            addIfDiagonalLegal(northWestPos, westOpen && !northWestPos.isSouthBlocked(),
                              northOpen && !northWestPos.isEastBlocked());                      // NW
        }
    }

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Examples of com.barrybecker4.game.twoplayer.blockade.board.BlockadeBoardPosition

     private void addIf1HopNeeded(boolean directionOpen, BlockadeBoardPosition dirPosition,
                                  int rowOffset, int colOffset) {


         int fromRow = fromLocation.getRow();
         int fromCol = fromLocation.getCol();
         BlockadeBoardPosition dirDirPosition =
                 board.getPosition(fromRow + 2 * rowOffset, fromCol + 2 * colOffset);
         // if either the players own pawn or that of the opponent is blocking the path, then true
         boolean pawnBlockingPath =
                 (dirDirPosition!=null && dirDirPosition.getPiece()!=null );
         if (directionOpen && !dirPosition.isVisited() &&
                  (pawnBlockingPath || dirPosition.isHomeBase(opponentPlayer1))) {
              possibleMoveList.add(
                      BlockadeMove.createMove(new ByteLocation(fromRow, fromCol),
                              new ByteLocation(fromRow + rowOffset, fromCol + colOffset),

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Examples of com.barrybecker4.game.twoplayer.blockade.board.BlockadeBoardPosition

      * Check for 2 space moves (4 cases).
      */
     private void addIf2HopLegal(boolean directionOpen, boolean blocked,
                                 Location toLocation) {


         BlockadeBoardPosition dirDirPosition = board.getPosition(toLocation);
         if (directionOpen && (dirDirPosition != null) && !blocked
              && (dirDirPosition.isUnoccupied() || dirDirPosition.isHomeBase(opponentPlayer1))
              && !dirDirPosition.isVisited()) { //DD
               possibleMoveList.add(
                       BlockadeMove.createMove(fromLocation, toLocation, 0, position.getPiece(), null));
         }
     }

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Examples of com.barrybecker4.game.twoplayer.blockade.board.BlockadeBoardPosition

                   BlockadeMove.createMove(fromLocation, diagonalPos.getLocation(), 0, position.getPiece(), null));
          }
          else if (diagonalPos.isOccupied()) {
              // if the diagonal position that we want to move to is occupied, we try to add the 1 space moves


              BlockadeBoardPosition horzPos =
                      board.getPosition(fromLocation.getRow(), diagonalPos.getCol());
              BlockadeBoardPosition vertPos =
                      board.getPosition(diagonalPos.getRow(), fromLocation.getCol());


              if (horizontalPathOpen && horzPos.isUnoccupied() && !horzPos.isVisited()) {
                   possibleMoveList.add(
                          BlockadeMove.createMove(fromLocation, horzPos.getLocation(), 0, position.getPiece(), null));
              }
              if (verticalPathOpen && vertPos.isUnoccupied() && !vertPos.isVisited()) {
                   possibleMoveList.add(
                          BlockadeMove.createMove(fromLocation, vertPos.getLocation(), 0, position.getPiece(), null));
              }
          }
     }

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Examples of com.barrybecker4.game.twoplayer.blockade.board.BlockadeBoardPosition

     */
    BlockadeWallList checkAddWallsForDirection(BlockadeBoardPosition pos, PathList paths,
                                                         Direction direction) {
        BlockadeBoard b = board;
        BlockadeWallList wallsToCheck = new BlockadeWallList();
        BlockadeBoardPosition westPos = pos.getNeighbor(Direction.WEST, b);
        BlockadeBoardPosition eastPos = pos.getNeighbor(Direction.EAST, b);
        BlockadeBoardPosition northPos = pos.getNeighbor(Direction.NORTH, b);
        BlockadeBoardPosition southPos = pos.getNeighbor(Direction.SOUTH, b);
        StraightWallChecker straightChecker = new StraightWallChecker(b);
        DiagonalWallChecker diagonalChecker = new DiagonalWallChecker(b);


        switch (direction) {
            case EAST :
                wallsToCheck = straightChecker.checkWallsForEast(eastPos, pos);
                break;
            case WEST :
                wallsToCheck = straightChecker.checkWallsForWest(westPos, pos);
                break;
            case NORTH :
                wallsToCheck = straightChecker.checkWallsForNorth(northPos, pos);
                break;
            case SOUTH :
                wallsToCheck = straightChecker.checkWallsForSouth(southPos, pos);
                break;
            // There are 4 basic cases for all the diagonals.
            case NORTH_WEST :
                 BlockadeBoardPosition northWestPos = pos.getNeighbor(Direction.NORTH_WEST, b);
                 wallsToCheck = diagonalChecker.checkWalls(northWestPos, northPos, westPos);
                 break;
            case NORTH_EAST :
                 BlockadeBoardPosition northEastPos = pos.getNeighbor(Direction.NORTH_EAST, b);
                 wallsToCheck = diagonalChecker.checkWalls(northPos, northEastPos, pos);
                 break;
            case SOUTH_WEST :
                 BlockadeBoardPosition southWestPos = pos.getNeighbor(Direction.SOUTH_WEST, b);
                 wallsToCheck = diagonalChecker.checkWalls(westPos, pos, southWestPos);
                 break;
            case SOUTH_EAST :
                 wallsToCheck = diagonalChecker.checkWalls(pos, eastPos, southPos);
                 break;

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Examples of com.barrybecker4.game.twoplayer.blockade.board.BlockadeBoardPosition


        // 12 cases
        int fromRow = move.getFromRow();
        int fromCol = move.getFromCol();
        BlockadeBoard b = board_;
        BlockadeBoardPosition origPos = board_.getPosition(fromRow, fromCol);
        BlockadeBoardPosition westPos = origPos.getNeighbor(Direction.WEST, b);
        BlockadeBoardPosition eastPos = origPos.getNeighbor(Direction.EAST, b);
        BlockadeBoardPosition northPos = origPos.getNeighbor(Direction.NORTH, b);
        BlockadeBoardPosition southPos = origPos.getNeighbor(Direction.SOUTH, b);
        switch (move.getDirection()) {
            case EAST_EAST :
                accumulator.checkAddWallsForDirection(eastPos, friendlyPaths, Direction.EAST);
            case EAST :
                accumulator.checkAddWallsForDirection(origPos, friendlyPaths, Direction.EAST);

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Examples of com.barrybecker4.game.twoplayer.blockade.board.BlockadeBoardPosition

     * @param pos one of the 3 base positions
     * @return list of accumulated walls to check.
     */
    private BlockadeWallList handleDirectionCase(BlockadeBoardPosition pos, int rowOffset, int colOffset,
                                                          BlockadeWallList wallsToCheck) {
        BlockadeBoardPosition offsetPos =
                    board.getPosition(pos.getRow() + rowOffset, pos.getCol() + colOffset);
        boolean isVertical = (rowOffset != 0);


        if (offsetPos != null) {
            boolean dirOpen = isVertical? offsetPos.isEastOpen() : offsetPos.isSouthOpen();
            if (dirOpen) {
                wallsToCheck.add( new BlockadeWall(pos, offsetPos));
            }
        }
        return wallsToCheck;

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Examples of com.barrybecker4.game.twoplayer.blockade.board.BlockadeBoardPosition

    @Override
    public String getToolTipText( MouseEvent e ) {
        Location loc = getBoardRenderer().createLocation(e);
        StringBuilder sb = new StringBuilder( "<html><font=-3>" );


        BlockadeBoardPosition space = ((BlockadeBoard)controller_.getBoard()).getPosition( loc );
        if ( space != null && GameContext.getDebugMode() > 0 ) {
            sb.append(space.toString());
            sb.append(space.isVisited()?":Visited":"");
            sb.append((space.isHomeBase()?(space.isHomeBase(true)?" P1 Home":"p2 Home"):""));
        }
        sb.append( "</font></html>" );
        return sb.toString();
    }

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Examples of com.barrybecker4.game.twoplayer.blockade.board.BlockadeBoardPosition

         BlockadeMoveToken mvToken = (BlockadeMoveToken) token;


         boolean player1 = token instanceof Player1BlockadeMoveToken;
         BlockadeWall wall = null;
         if (mvToken.hasWall())
             wall = new BlockadeWall(new BlockadeBoardPosition(mvToken.getWallPoint1().y, mvToken.getWallPoint1().x),
                                                       new BlockadeBoardPosition(mvToken.getWallPoint2().y, mvToken.getWallPoint2().x));


         return BlockadeMove.createMove(new ByteLocation(mvToken.getFromY(), mvToken.getFromX()),
                 new ByteLocation(mvToken.getToY(), mvToken.getToX()),
                 0, new GamePiece(player1), wall);
    }

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Examples of com.barrybecker4.game.twoplayer.blockade.board.BlockadeBoardPosition

        }


        BlockadeController controller = (BlockadeController)viewer_.getController();
        BlockadeBoard board = (BlockadeBoard) controller.getBoard();
        // get the original position.
        BlockadeBoardPosition position =
                board.getPosition(getRenderer().getDraggedPiece().getLocation());


        // valid or not, don't show the dragged piece after releasing the mouse.
        getRenderer().setDraggedPiece(null);


        BlockadeMove m = checkAndGetValidMove(position, loc);
        if (m == null) {
            return false;
        }


        // make sure that the piece shows while we decide where to place the wall.
        currentMove = m;
        GameContext.log(1, "legal human move :" + m.toString());
        position.getPiece().setTransparency((short) 0);
        boolean isPlayer1 = position.getPiece().isOwnedByPlayer1();
        BlockadeBoardPosition newPosition =
                board.getPosition(currentMove.getToRow(), currentMove.getToCol());
        newPosition.setPiece(position.getPiece());
        position.setPiece(null);
        viewer_.refresh();


        if (newPosition.isHomeBase( !isPlayer1 )) {
            hasWon = true;
            assert(isPlayer1 == (controller.getCurrentPlayer() == controller.getPlayers().getFirstPlayer()));
            controller.getCurrentPlayer().setWon(true);
        }
        else {

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