protected boolean isSafeMovement(Mine mine, Cell source, Cell target) {
if (source == null || target == null) return false;
if (source.getContent().getTrampolineTarget() == target.getContent()) return true;
Cell upCell = mine.getCell(target.getCoordinate().up());
if (upCell == null) return true;
Cell upUpCell = mine.getCell(target.getCoordinate().up().up());
Cell upUpLeftCell = mine.getCell(target.getCoordinate().up().up().left());
Cell upUpRightCell = mine.getCell(target.getCoordinate().up().up().right());
if (upCell.getContent() == CellContent.Empty
&& (upUpCell != null
&& (upUpCell.getContent() == CellContent.Rock
|| upUpCell.getContent() == CellContent.HighOrderRock)
|| upUpLeftCell != null
&& (upUpLeftCell.getContent() == CellContent.Rock
|| upUpLeftCell.getContent() == CellContent.HighOrderRock)
|| upUpRightCell != null
&& (upUpRightCell.getContent() == CellContent.Rock
|| upUpRightCell.getContent() == CellContent.HighOrderRock))) {
return false;
}
return true;
}
