private GameObj shiftChecker(GameObj obj, int x, int y) {
Color c = obj.getColor();
Checker ret = new Checker(x, y, c);
if (obj.isQueen()) {
ret.makeQueen();
}
return ret;
}
private boolean canDoubleJump(GameObj obj) {
doubleJumpSpots = new ArrayList<Tuple<Integer, Integer>>();
if (obj.isTile()) {
return false;
}
int x = obj.getX();
int y = obj.getY();
if (obj.isQueen()) {
return doubleJumpProcess(obj, x + 2, y + 2)
|| doubleJumpProcess(obj, x - 2, y + 2)
|| doubleJumpProcess(obj, x + 2, y - 2)
|| doubleJumpProcess(obj, x - 2, y - 2);
} else {
if (turn.equals(Color.RED)) {
return doubleJumpProcess(obj, x + 2, y - 2) || doubleJumpProcess(obj, x - 2, y - 2);
} else {
return doubleJumpProcess(obj, x + 2, y + 2) || doubleJumpProcess(obj, x - 2, y + 2);
}
}
}
private boolean doubleJumpProcess(GameObj obj, int xtrans, int ytrans) {
if (xtrans >= 8 || xtrans < 0 || ytrans >= 8 || ytrans < 0) {
return false;
}
int x = obj.getX();
int y = obj.getY();
if (Math.abs(x - xtrans) != 2 && Math.abs(y - ytrans) != 2) {
return false;
}
int medx = (x + xtrans) / 2;
int medy = (y + ytrans) / 2;
if (BOARD[xtrans][ytrans].isTile()
&& BOARD[medx][medy].isChecker()
&& !BOARD[medx][medy].getColor().equals(turn)) {
doubleJumpSpots.add(new Tuple<Integer, Integer>(xtrans, ytrans));
return true;
} else {
return false;
}
}