Flare - Minecraft Mod Launcher Creation Log

Scott • 12/21/15 4:01 pm

12/24/2015 5:35 am

Hey guys, Sodex here!
I am the lead developer of the "Flare" minecraft project. We are a group of dedicated people building - from the ground up - a Minecraft Mod Pack friendly launcher. Our aim is to make it fast, easy to use and friendly to modders / pack makers / users. We aim for reliability, working across all platforms. Here you will find my log of code, and achievements. To start it off, here is my (semi) finished log on screen:

Click to reveal

This log on is able to check against the Mojang servers XD Image was to big so just click URL https://i.gyazo.com/9829dcf3307578c322f ... 8a010e.png It looks allright (ish). And for you people who want to see the code here it is LoginScreen.java

package org.flare.login;

import java.awt.Color;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.net.URL;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JPasswordField;
import javax.swing.JRootPane;
import javax.swing.JTextField;

import org.flare.core.Main;
import org.flare.launcher.Launcher_Main;

public class LoginScreen implements ActionListener{

	static JFrame logincore = new JFrame("Flare Launcher");
	
	static JTextField username = new JTextField("");
	static JPasswordField password = new JPasswordField("");
	
	public static void loginScreen(){
		
		logincore.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		
		JPanel container = new JPanel();
		
		//Dimension dim = Toolkit.getDefaultToolkit().getScreenSize();
		
		logincore.setUndecorated(true);
		logincore.getRootPane().setWindowDecorationStyle(JRootPane.NONE);
		
		BackgroundPanel loginscreen = new BackgroundPanel(Main.getBackgroundImage());
		
		//JLabel loginscreen = new JLabel(Main.getBackground());
		logincore.add(loginscreen);
		loginscreen.setLayout(new GridLayout(1,1));
		
		
		JLabel text_username = new JLabel("Username:  ");
		JLabel text_password = new JLabel("Password:  ");
		JButton login = new JButton("Login to Minecraft!");
		login.setActionCommand("LOGIN");
		login.addActionListener(new LoginScreen());
		
		text_password.setBackground(Color.WHITE);
		text_username.setBackground(Color.WHITE);
		login.setBackground(Color.WHITE);
		
		JButton signup = new JButton("Quit");
		signup.setActionCommand("QUIT");
		signup.addActionListener(new LoginScreen());
		
		signup.setBackground(Color.WHITE);
		
		//ImageIcon icon = new ImageIcon(Main.getPath() + File.separator + "icon_button.png");
		
		//signup.setIcon(icon);
		
		GridBagLayout layout = new GridBagLayout();
		
		container.setLayout(layout);
		GridBagConstraints gbc = new GridBagConstraints();
		
		username.setColumns(12);
		password.setColumns(12);
		
		gbc.fill = GridBagConstraints.HORIZONTAL;
		gbc.gridx = 1;
		gbc.gridy = 0;
		container.add(username, gbc);
		
		gbc.gridx = 0;
		gbc.gridy = 0;
		container.add(text_username, gbc);
		
		gbc.gridx = 0;
		gbc.gridy = 1;
		container.add(text_password, gbc);
		
		gbc.gridx = 1;
		gbc.gridy = 1;
		container.add(password, gbc);
		
		gbc.gridx = 1;
		gbc.gridy = 2;
		container.add(login, gbc);
		
		gbc.gridx = 0;
		gbc.gridy = 2;
		container.add(signup, gbc);
		
		loginscreen.add(container); 
		//logincore.setLocation(dim.width/2-logincore.getSize().width/2, dim.height/2-logincore.getSize().height/2);
		logincore.setSize(720, 480);
		logincore.setResizable(false);
		logincore.setVisible(true);
		logincore.setLocationRelativeTo(null);
		
	}

	@Override
	public void actionPerformed(ActionEvent e) {
		if(e.getActionCommand() == "QUIT"){
			logincore.setVisible(false);
			logincore.dispose();
		}else if(e.getActionCommand().equalsIgnoreCase("LOGIN")){
			
			boolean success = false;
			
			try {
				URL url = new URL("https://authserver.mojang.com/authenticate");
				
				@SuppressWarnings("deprecation")
				String password_string = password.getText();
				String username_string = username.getText();
				
				success = Authenticate.httpRequest(url, Authenticate.getJSON(username_string, password_string));
			} catch (Exception e1) {
				e1.printStackTrace();
			}
			
			if(success == true){
				System.out.println("Woo! Logged in.");
				logincore.setVisible(false);
				logincore.dispose();
				
				Launcher_Main.launcherWindow();
			}else{
				System.out.println("Noo! Failed Loggin.");
				JOptionPane.showMessageDialog(null, "Incorrect username/password.");
			}
			
		}
	}
	
}

Authentication.java

package org.flare.login;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLConnection;

import org.json.JSONObject;

public class Authenticate {
	
	public static String getJSON(String username, String password){
		JSONObject json1 = new JSONObject();
        json1.put("name", "Minecraft");
        json1.put("version", 1);
        JSONObject json = new JSONObject();
        json.put("agent", json1);
        json.put("username", username);
        json.put("password", password);

        return json.toString();
        
	}
	
	public static boolean httpRequest(URL url, String content) throws Exception {
        byte[] contentBytes = content.getBytes("UTF-8");

        URLConnection connection = url.openConnection();
        connection.setDoInput(true);
        connection.setDoOutput(true);
        connection.setRequestProperty("Accept-Charset", "UTF-8");
        connection.setRequestProperty("Content-Type", "application/json");
        connection.setRequestProperty("Content-Length", Integer.toString(contentBytes.length));

        OutputStream requestStream = connection.getOutputStream();
        requestStream.write(contentBytes, 0, contentBytes.length);
        requestStream.close();

        String response = "";
        BufferedReader responseStream;
        if (((HttpURLConnection) connection).getResponseCode() == 200) {
            responseStream = new BufferedReader(new InputStreamReader(connection.getInputStream(), "UTF-8"));
        } else {
            responseStream = new BufferedReader(new InputStreamReader(((HttpURLConnection) connection).getErrorStream(), "UTF-8"));
        }

        response = responseStream.readLine();
        responseStream.close();
        System.out.println(response);

        if (((HttpURLConnection) connection).getResponseCode() != 200) {
            //Failed to login (Invalid Credentials or whatever)
        	return false;
        }else{
        	return true;
        }
        
        
    }
	
}

#Update 2

Click to reveal

Me and Lorpie (he designed it) have made the home screen for the launcher. https://gyazo.com/5d1de348f0ce8759f0edb274bf6a50ca - its not done my side - I still need to add is some buttons and Labels.

Thanks for reading! I will update this as I code ofc XD
Want to Help?
post3720143.html#p3720143

Posted by

Scott
Level 40 : Master Droid

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