private static final void connectBorders(Tile t1, int b1, Tile t2, int b2) {
t1.getBorder()[b1].setZone(
t1.getBorder()[b1].getZone().mergeInto(t2.getBorder()[b2].getZone()));
t1.getBorderConnections()[b1] = t2.getBorder()[b2];
t2.getBorderConnections()[b2] = t1.getBorder()[b1];
}
public static final void matchTiles(Tile tile, Tile top, Tile bottom, Tile left, Tile right)
throws InvalidTileException {
if (tile == null) throw new InvalidTileException("Tile can not be null");
if (top != null) {
match(tile.getBorder()[0], top.getBorder()[8]);
match(tile.getBorder()[1], top.getBorder()[7]);
match(tile.getBorder()[2], top.getBorder()[6]);
}
if (right != null) {
match(tile.getBorder()[3], right.getBorder()[11]);
match(tile.getBorder()[4], right.getBorder()[10]);
match(tile.getBorder()[5], right.getBorder()[9]);
}
if (bottom != null) {
match(tile.getBorder()[6], bottom.getBorder()[2]);
match(tile.getBorder()[7], bottom.getBorder()[1]);
match(tile.getBorder()[8], bottom.getBorder()[0]);
}
if (left != null) {
match(tile.getBorder()[9], left.getBorder()[5]);
match(tile.getBorder()[10], left.getBorder()[4]);
match(tile.getBorder()[11], left.getBorder()[3]);
}
}