Thread: need help with a new way of source code

Hello everybody! I recently started with programming in java! I learned from a dutch book written by David J. Barnes en Michael Kölling. The book is translated form the english version: Objects First With Java a parctical introduction using BlueJ. Now that I'm finally through the book i was looking for a task! That's when I stumbled upon a task which was from my brother in 2004! I first asked him but he couldn't answer me (he mostly is programming in LabView, like 9 years)
First I want to apologize for my bad English typing I from Belgium and I am trying really hard!!

the task: I need to create a maze in which a player is moving! He can only be moved by the air of a ventilator or by the attraction of a magnet. So by clicking with the mouse on those items, the ventilator or magnet need the become an active element. Whether it affects the player depends on the position of the player and ventilator/magnet! By performing those clicks you have to show the player to the exit of the maze.

I first started with the development of an algorithm for generating a maze, after 8 hours I finally gave up. Now I've created a maze by defining a 2D-array in which I declared which position is a wall and which is a path, probably not the right way but good enough for the time being.
Than I made one head Class 'Vak' from that class I extended 'a Path', 'a Wall', 'a Ventilator', 'a Magneet' and finally 'a player'. Those are all the items I guess I need for solving this problem. I created a play area 'Speelbord'. Here I Stored all of my logic (source code)! Here is also where my problem starts. Specifically in this piece of source code:

    public void beweeg([B]Speler s, Vak vk, Ventilator vr, Magneet mt[/B])
    {
 
        if (gameover == false && s.getX() == vk.getX())//we gaan nu VERTICAAL bewegen
        {
            //voor een Ventilator zien de bewegings mogelijkheden er als volgt uit:
            if (s.getY() > vk.getY() && vk.getKleur() == vr.getKleur())
            {
                int dy = s.getY() + vr.getKracht();//de Ventilator ligt boven de speler -> hij moet dus naar onder bewegen (het aantal vakjes volgens de kracht) = optellen
                y = y + dy;// is dy == kracht?
            }
            if (s.getY() < vk.getY() && vk.getKleur() == vr.getKleur())
            {
                int dy = s.getY() - vr.getKracht();//de Ventilator ligt onder de speler -> hij moet dus naar boven bewegen (het aantal vakjes volgens de kracht) = aftrekken
                y = y - dy;// is dy == kracht?
            }
 
            //voor een Magneet zien de bewegings mogelijkheden er als volgt uit:
            if (s.getY() > vk.getY() && vk.getKleur() == mt.getKleur())
            {
                int dy = s.getY() - mt.getKracht();// de Magneet ligt boven de speler -> hij moet dus naar boven bewegen (het aantal vakjes volgens de kracht) = aftrekken
                y = y - dy;// is dy == kracht?
            }
            if (s.getY() < vk.getY() && vk.getKleur() == mt.getKleur())
            {
                int dy = s.getY() + mt.getKracht();// de Magneet ligt onder de speler -> hij moet dus naar onder bewegen (het aantal vakjes volgens de kracht) = optellen
                y = y - dy;// is dy == kracht?
            }
        }
 
        if (gameover == false && s.getY() == vk.getY())// we gaan nu HORIZONTAAL bewegen
        {
            //voor een Ventilator zien de bewegings mogelijkheden er als volgt uit: 
            if (s.getX() > vk.getX() && vk.getKleur() ==  vr.getKleur())
            {
                int dx = s.getX() + vr.getKracht();//de Ventilator ligt links van de speler -> hij moet dus naar rechts bewegen (het aantal vakjes volgens de kracht) = optellen
                x = x + dx; //is dx == kracht?
            }
            if (s.getX() < vk.getX() && vk.getKleur() ==  vr.getKleur())
            {
                int dx = s.getX() - vr.getKracht();//de Ventilator ligt rechts van de speler -> hij moet dus naar links bewegen (het aantal vakjes volgens de kracht) = aftrekken
                x = x - dx; //is dx == kracht?
            }
 
            //voor een Magneet zien de bewegings mogelijkheden er als volgt uit:
            if (s.getX() > vk.getX() && vk.getKleur() ==  mt.getKleur())
            {
                int dx = s.getX() - mt.getKracht();//de Magneet ligt rechts van de speler -> hij moet dus naar links bewegen (het aantal vakjes volgens de kracht) = aftrekken
                x = x - dx;//is dx == kracht?
            }
            if (s.getX() < vk.getX() && vk.getKleur() == vr.getKleur())
            {
                int dx = s.getX() + mt.getKracht();// de Magneet ligt links van de speler -> hij moet dus naar rechts bewegen (het aantal vakjes volgens de kracht) = optellen
                x = x + dx;//is dx == kracht?
            }
 
        }
 
    }

the piece in Bold is which I did to collect the positions and see whether the player can or cannot move. This will still compile in BlueJ. Now I've created an other class 'controller' Here I make a mouseListener and I am trying to declare it. There for I wrote the following source code:

    /**
     * MouseEvents vanaf hier. 
     */
    public void mouseEntered(MouseEvent e) {}
    public void mouseExited(MouseEvent e) {}
    public void mousePressed(MouseEvent e)  {}
    public void mouseReleased(MouseEvent e) {}
    public void mouseClicked(MouseEvent e, Magneet mt, Ventilator vr, Speler s) //deze heb ik nodig voor het permanent actief maken van Magneet/Ventilator
    {
        x = e.getX();//x-coördinaat van de click
        y = e.getY();//y-coördinaat van de click
        //Wanneer zowel x en y coördinaat hetzelfde zijn mag de beweging worden uitgevoerd zoals beschreven in speelbord
        if (e.getX() == mt.getX() && e.getY() == mt.getY() && s.getX() == e.getX())
        {
            bord.beweegVerticaal();//deze methode staat in speelbord bord
            view.repaint();
        }
        else if (e.getX() == vr.getX() && e.getY() == vr.getY() && s.getY() == e.getY())
        {
            bord.beweegHorizontaal();
            view.repaint();
        }
 
    }

If I compile now I got the following error: cannot find symbol- method beweegVerticaal. Which is wired because I wrote it (prove above) Now after trying to solve it and reading on the internet I guess I know what the problem might be. My guess is he is expecting some class of those in bold (Speler, Vak, Ventilator, Magneet)
But I cannot put that class there because when I perform a click there need to be a move... So my guess is I need to change my logic, I need the change the way I am thinking but how, how can I do it?

I've also uploaded my program so far! So if my explanation is wrong and/or a little bit vague you can go and look!
MagnetischDoolhof_theGame.rar download - 2shared

thx in advance!!

got the following error: cannot find symbol- method beweegVerticaal.

Please post the full text of the error message.

Please Edit your post and wrap your code with
[code=java]
<YOUR CODE HERE>
[/code]
to get highlighting and preserve formatting.

Where is the definition for the variable: bord and for its class?

You can not change the arguments passed to a listener method like mouseClicked(). You will have to make the mt variable a class variable so the mouseClicked() method can have access to it.

how can I make this mt variable a class variable!

Define it in the class that the mouseClicked() method is defined in.

Can you make a small program that compiles, executes and shows the problem? Not the whole project, just the minimum to show the problem.

A small program that shows the problem would be best. The rest of the code just gets in the way for working on the problem.

I might be able to help, I've done tons with graphics in Java. I'll try to translate the class names, but as Norm said, a small program to demonstrate the problem would be nice.

EDIT: Just because you made this canvas doesn't mean it just works. You've got to plug it into a system, like a graphics library. I couldn't help you with this as this is very library specific, and I'm used to using LWJGL only.

@ Norm: I really was trying to make a smaller program in which I not succeeded but while doing that it occured to me what I needed to change to my own program to let it display the maze. And let the logic work my player towards the end. thank you very much!!

@ lightofDay: There is no need for it any more! I finally succeeded as I told Norm already! But thanks anyway!

Maybee you guys Can help me with another problem I've been having. I am trying to upload an image for my player, instead of a rectangle. Now I don't know how I need to do that and whether it will fit in a rectangle or not... You see the player can't be bigger then the red rectangle I choose to be my player right now!!
Also if you succeed and lead your player towards the end, there pups-up "Congrats" in yellow. I was wondering if it is possible to let it turn 360° ...
And last but not least I was wondering if it is possible to let a music play during the game?
Can you help me to solve those questions.

I also uploaded my new program by the following link: MagnetischDoolhof_theGame_part2.rar download - 2shared
thx in advance, and sorry for programming in dutch, I will never do that again!!

Again a small program for testing would be helpful.

Maybee I've found a way of making a small program in which I can play the music but this time I used eclipse instead of BlueJ!
- on Eclipse I'm getting the following error: "Description Resource Path Location Type
Access restriction: The constructor AudioStream(InputStream) is not accessible due to restriction on required library C:\Program Files\Java\jre7\lib\rt.jar Sound_1.java /Sound_1/src line 44 Java Problem" the line is irrelevant here because it shows up at different lines.

>>Solution???: on youtube I read I needed to go to window->preferences->java->compiler->errors/warnings-> deprecated and restricted API: everything to ignore or warning.
Do I also need to check any boxes there if that is the solution?

- therefor I also tried my code in BlueJ and there pop-up a box on my screen with the following:
show() in java.awt.Window has been deprecated
sun.audio.AudioPlayer is internal proprietary API and maybe removed in a future release
sun.audio.AudioPlayer is internal proprietary API and maybe removed in a future release
sun.audio.AudioStream is internal proprietary API and maybe removed in a future release
sun.audio.AudioData is internal proprietary API and maybe removed in a future release
sun.audio.ContinuousAudioDataStream is internal proprietary API and maybe removed in a future release
sun.audio.AudioStream is internal proprietary API and maybe removed in a future release
sun.audio.ContinuousAudioDataStream is internal proprietary API and maybe removed in a future release
>>Solution???: for blueJ I cannot find a solution on the internet do you know any?

thx in advance!

I am so sorry, you can completely ignore my last post!! I managed to solve it my self because google is my friend too (I was completely forgotten about that)
But now I want to implement this Sound to the program I already made! But does anybody know whether it is possible or not and where I could best write/add that code? To class Speelbord or should I make another class Sound and just call it in my game Magnetisch doolhof?

the program with the sound has the following code (which I found on the internet) to let it work you have to add a wav file in the map where your code is stored, this code is working so now error here:

import javax.swing.*;
import sun.audio.*;
import java.awt.event.*;
import java.io.*;
 
/**
 * Write a description of class Sound here.
 * 
 * @author (your name) 
 * @version (a version number or a date)
 */
public class Sound
{
    public static void main(String [] args)
    {
        JFrame frame = new JFrame();
        frame.setSize(200,200);
        JButton button = new JButton("Click me");
        frame.add(button);
        button.addActionListener(new AL());
        frame.show();
    }
 
    public static class AL implements ActionListener
    {
        public final void actionPerformed (ActionEvent e)
        {
            music();
        }
    }
 
    public static void music()
    {
        AudioPlayer MGP = AudioPlayer.player; //BackGroundPlayer
        AudioStream BGM; //BackGroundMusic
        AudioData MD;
        ContinuousAudioDataStream loop = null;
 
 
        try
        {
 
            BGM = new AudioStream (new FileInputStream("50.wav"));
            MD = BGM.getData();
            loop = new ContinuousAudioDataStream(MD);
        }
        catch(IOException e){}
 
        MGP.start(loop);
    }
 
}

And I'm working on a small program to let somthing move but not a succes yet!!

thx in advance!