MultiplayerMenu.java 文件源码

public MultiplayerMenu() {
    Game.ISONLINE = true;
    Game.ISHOST = false;

    if(savedUUID == null) savedUUID = "";
    if(email == null) email = "";
    if(savedUsername == null) savedUsername = "";

    // HTTP REQUEST - determine if there is internet connectivity.
    //String url = "https://www.playminicraft.com"; // test request
    setWaitMessage("testing connection");

    Unirest.get(domain).asBinaryAsync(new Callback<InputStream>() {
        @Override
        public void completed(HttpResponse<InputStream> httpResponse) {
            if(httpResponse.getStatus() == 200)
                online = true;
            else
                System.out.println("warning: minicraft site ping returned status code " + httpResponse.getStatus());

            //if(Game.getMenu() != MultiplayerMenu.this) return; // don't continue if the player moved to a different menu. 

            if(savedUUID.length() > 0) {
                // there is a previous login that can be used; check that it's valid
                setWaitMessage("attempting log in");
                //if (Game.debug) System.out.println("fetching username for uuid");
                fetchName(savedUUID);
            }

            if(curState == State.ERROR)
                return;

            // at this point, the game is online, and either the player could log in automatically, or has to enter their
            // email and password.

            if(savedUsername.length() == 0 || savedUUID.length() == 0)
                curState = State.LOGIN; // the player must log in manually.
            else {
                typing = savedIP;
                curState = State.ENTERIP; // the user has sufficient credentials; skip login phase
            }
        }

        @Override
        public void failed(UnirestException e) {
            e.printStackTrace();
            cancelled();
        }

        @Override
        public void cancelled() {
            if(savedUsername.length() == 0 || savedUUID.length() == 0) {
                // couldn't validate username, and can't enter offline mode b/c there is no username
                setError("no internet connection, but no login data saved; cannot enter offline mode.", false);
                //setError("could not access "+url);
                return;
            }

            // there is a saved copy of the uuid and username of the last player; use it for offline mode.
            curState = State.ENTERIP;
        }
    });
}