// TODO: Refactor method
private void removeLines(
Map<Position, Piece> pieceMap,
PieceColor pieceColor,
Map<PieceColor, Set<Line.Segment>> linesTakenBy,
Map<PieceColor, Set<Position>> piecesBackTo) {
Set<Line.Segment> intersectingSegments;
Set<Line.Segment> segmentsNotRemoved = new HashSet<>();
do {
intersectingSegments = new HashSet<>();
Set<Line.Segment> removableSegmentsThisPlayer =
getRemovableLineSegments(pieceMap, pieceColor);
for (Line.Segment segment : removableSegmentsThisPlayer) {
// Remove the line segments that are not intersecting with other line segments of the set
boolean intersectionFound = false;
for (Line.Segment otherSegment : removableSegmentsThisPlayer) {
if (!segment.equals(otherSegment) && !segmentsNotRemoved.contains(otherSegment)) {
if (segment.intersectsWith(otherSegment)) {
if (!segmentsNotRemoved.contains(segment)) {
intersectingSegments.add(segment);
intersectionFound = true;
}
}
}
}
if (!intersectionFound) {
if (!segmentsNotRemoved.contains(segment)) {
linesTakenBy.get(pieceColor).add(segment);
}
}
}
if (intersectingSegments.size() > 0) {
Line.Segment segment = intersectingSegments.iterator().next();
currentRemoveSelection = segment.getOccupiedPositions(pieceMap);
int dialogResult =
GipfBoardComponent.showConfirmDialog(
gipfBoardState.players.current().pieceColor
+ ", do you want to remove "
+ segment
.getOccupiedPositions(pieceMap)
.stream()
.map(Position::getName)
.sorted()
.collect(toList())
+ "?",
"Remove line segment");
if (dialogResult == JOptionPane.YES_OPTION) {
// Remove the line
linesTakenBy.get(pieceColor).add(segment);
} else if (dialogResult == JOptionPane.NO_OPTION) {
// Don't remove the line
segmentsNotRemoved.add(segment);
}
currentRemoveSelection = new HashSet<>();
}
for (Line.Segment segment : linesTakenBy.get(pieceColor)) {
Predicate<Map.Entry<Position, Piece>> isNormalPiece =
entry -> entry.getValue().getPieceType() == NORMAL;
Predicate<Map.Entry<Position, Piece>> isCurrentPlayersColor =
entry -> entry.getValue().getPieceColor() == pieceColor;
Predicate<Map.Entry<Position, Piece>> doesPlayerWantToRemoveGipf =
entry -> {
currentRemoveSelection.add(entry.getKey());
int dialogResult =
GipfBoardComponent.showConfirmDialog(
gipfBoardState.players.current().pieceColor
+ ", do you want to remove the Gipf at "
+ entry.getKey().getName()
+ "?",
"Remove Gipf");
currentRemoveSelection = new HashSet<>();
return dialogResult == JOptionPane.YES_OPTION;
};
Map<Position, Piece> piecesRemovedMap =
segment.getOccupiedPositions(pieceMap).stream().collect(toMap(p -> p, pieceMap::get));
piecesBackTo
.get(pieceColor)
.addAll(
piecesRemovedMap
.entrySet()
.stream()
.filter(isCurrentPlayersColor.and(isNormalPiece.or(doesPlayerWantToRemoveGipf)))
.map(Map.Entry::getKey)
.collect(toSet()));
piecesBackTo
.get(null)
.addAll(
piecesRemovedMap
.entrySet()
.stream()
.filter(
isCurrentPlayersColor
.negate()
.and(isNormalPiece.or(doesPlayerWantToRemoveGipf)))
.map(Map.Entry::getKey)
.collect(toSet()));
}
piecesBackTo.values().forEach(positionSet -> removePiecesFromPieceMap(pieceMap, positionSet));
} while (intersectingSegments.size() > 0);
return;
}
