Method connectPath

src/main/java/mudmap2/backend/Place.java:263–289

Connects a place to another one tht is specified in path If 'this place' is not in path an exception will be thrown @param path

(final Path path)

     * @param path
     */
    public void connectPath(final Path path) throws RuntimeException, NullPointerException {
        final Place[] pp = path.getPlaces();
        Place other;

        if (pp[0] == this) {
            other = pp[1];
        } else if (pp[1] == this) {
            other = pp[0];
        } else {
            throw new RuntimeException("Wrong place in given path");
        }

        // check whether other place is null
        if (other == null) {
            throw new NullPointerException();
        }

        // check whether the path connects a place with itself on the same exit
        if (other == this && path.getExitDirections()[0].equals(path.getExitDirections()[1])) {
            throw new RuntimeException("Can not connect path to the same exit of one place");
        }

        paths.add(path);
        other.paths.add(path);

        callWorldChangeListeners();
    }

    /**
     * Get a set of paths connected to exit