Topic: Java Applets (Read 29735 times)

WarHampster · « **Reply #30 on:** February 21, 2009, 05:32:12 PM »

There's still some random flickering, and the first time you walk into the mountains from below you go through them... but good job

What are you using to learn java? I'm getting bored of just making bank accounts and stuff in class...

Gan · « **Reply #31 on:** February 21, 2009, 06:06:05 PM »

I used these tutorial sites to learn, now I've learned all I need. Just up to making any ideas I have...

Main tutorial: http://www.javacooperation.gmxhome.de/TutorialStartEng.html
Another tutorial: http://www.dgp.toronto.edu/~mjmcguff/learn/java/

-Gandolf

Silverwind · « **Reply #32 on:** February 21, 2009, 06:19:47 PM »

Wow, that first tutorial is cool. I especially like the random landscape generator; the concept might also work for a random dungeon generator with a bit of tweaking.

Gan · « **Reply #33 on:** March 28, 2009, 03:11:17 PM »

Hey guys, I scoured google until I could find an amazing set of tutorials for Xcode that could teach me everything I would ever learn. I found it in 30 seconds. Besides that, I went through a couple tutorials with great ferocity, intently trying to memorize everything my eyes laid upon. Finally after learning a bit about C language and syntax, I opened Xcode, set specified preferences and was about to open a new cocoa app when...

...I saw another application type. Java Signed Applet! Sorry Netbeans, my heart now belongs to another...

-Gandolf

WarHampster · « **Reply #34 on:** June 03, 2009, 06:07:55 PM »

Quick question for Gandolf (or anyone else who knows Java):

Will I be shot for making non-constant data static? I mean making a variable static and then using it with static methods as if it were a normal instance variable. Everything seems to say that this is unusual and not recommended... why?

Gan · « **Reply #35 on:** June 03, 2009, 07:37:10 PM »

Yeah, that method isn't so good. It would be better to create a new instance of the class with a non-static version of that variable within the Main static method. It would make your life much easier.

Here is an example of something I would do:
Main Class

Code: [Select]

public class Main {
    public Main() {
    }
    static Main main = new Main();
    public MainScreen mainscreen;

    public static void main(String args[]) {
        main.mainscreen = new MainScreen(main);
    }
}

MainScreen Class

Code: [Select]

import java.io.*;
import java.net.*;
import java.lang.Thread;
import java.applet.*;
import java.awt.*;
import java.awt.event.*;
import java.awt.image.*;
import java.io.*;
import java.lang.*;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.geom.AffineTransform;
import java.util.List;
import java.util.*;
import java.awt.event.FocusListener;
import java.awt.event.FocusEvent;
import java.awt.geom.*;

public class MainScreen extends javax.swing.JFrame implements Runnable {
    public Runnable runnable = this;

    // Create the thread supplying it with the runnable object
    public Thread Thread = new Thread(runnable);
    //The mouse Input
    public int mx,  my;  // the mouse coordinates
    public boolean isButtonPressed = false;
    //Keyboard input
    public boolean[] keys = new boolean[120];
    public String pressed = "";

    public void run() {
        while (true) {
            canvas1.repaint();
            try {
            Thread.sleep(50);
            }catch (Exception e){}
        }
    }
    public MainScreen() {
    }
    Main main;

    public MainScreen(Main main) {
        this.main = main;
        initComponents();
        this.setVisible(true);
        Thread.setDaemon(true);
        Thread.setPriority(Thread.MIN_PRIORITY);
        Thread.start();
        canvas1.requestFocus();
    }

    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {

            public void run() {
                new MainScreen().setVisible(true);
            }
        });
    }

    // Variables declaration - do not modify
    public java.awt.Canvas canvas1;
    private javax.swing.JButton jButton1;
    // End of variables declaration
}

class GCanvas extends Canvas {
    //For Double Buffering

    private Image dbImage;
    private Graphics dbg;
    public MainScreen main;
    public Graphics2D g2;
    AffineTransform affineTransform = new AffineTransform();
    Dimension d;

    public GCanvas(MainScreen main) {
        this.main = main;
    }

    public void paint(Graphics g) {
        g2 = (Graphics2D) g;
        d = this.getSize();

        g2.setColor(Color.RED);
        g2.drawString("hi", 100 ,100);
    }
}

You see, I have my blank Main class which is static, inside it's static-ness; I have it create a non-static instance the the Application window, "Main Screen". On MainScreen is a canvas I made which will display the text, "Hi". It updates the canvas every few milliseconds. If you copy the code exactly, it won't work because I erased a bunch of Gui stuff that hogs space when posted, though if you copy the way I set it up; it will work wonderfully for you.

-Gandolf

WarHampster · « **Reply #36 on:** June 03, 2009, 11:22:07 PM »

I understand that... but why are static variables bad? Do they use tons of memory or something?

Gan · « **Reply #37 on:** June 04, 2009, 11:29:31 AM »

Hmm. I'm unsure, haven't thought too much about that. I think it's probably the way it's set up that static variables won't do most things you want to do.

I'm self taught under google, I won't know too many of the best methods or the reasons for the best methods. You should try asking a professional on the official Java forum if the question bugs you too much.

-Gandolf

WarHampster · « **Reply #38 on:** June 04, 2009, 12:31:23 PM »

I wrote my port of the RPG engine using tons of static variables and my computer science teacher was fine with it, so I'm not going to worry

Gan · « **Reply #39 on:** June 04, 2009, 01:32:35 PM »

Could you post it here? I would love to feast my eyes upon it.

-Gandolf

WarHampster · « **Reply #40 on:** June 04, 2009, 06:20:00 PM »

Yeah, I'll clean it up a bit and post it.

Topic: Java Applets (Read 29735 times)

WarHampster

Re: Java Applets

Gan

Re: Java Applets

Silverwind

Re: Java Applets

Gan

Re: Java Applets

WarHampster

Re: Java Applets

Gan

Re: Java Applets

WarHampster

Re: Java Applets

Gan

Re: Java Applets

WarHampster

Re: Java Applets

Gan

Re: Java Applets

WarHampster

Re: Java Applets