Back to General and Gameplay Programming

Help with my Image Loading

General and Gameplay Programming Programming

Started by Bloodtake October 24, 2011 06:41 PM

3 comments, last by kuramayoko10 12 years, 6 months ago

Bloodtake

100

Author

October 24, 2011 06:41 PM

Hi,

Im new to this forum and I was wondering if someone could help me? In my project I want my map (background image) to load, however It does not seem to do it at all and I have used mostly every single way. I you can see what my problem is could you show a correction

. It is based in two classes!

This is the fist one and my main class!

package com.bloodtake.quest;

import java.awt.Canvas;
import java.awt.Dimension;
import
java.awt.Graphics;

import javax.swing.JFrame;

import com.bloodtake.quest.graphics.Screen;
import
com.bloodtake.quest.world.*;

public class QuestComponent extends Canvas implements Runnable
{
private static final long serialVersionUID =
1L;

private static final int WIDTH = 160;
private
static final int HIGHT = 120;
private static final int SCALE = 4;

private static final Graphics Graphics = null;
boolean
screenLoad = false;

private boolean running;
private
Thread thread;

private Game game;
private Screen
screen;

public QuestComponent() {
Dimension
size = new Dimension(WIDTH*SCALE,
HIGHT*SCALE);
setPreferredSize(size);
setMinimumSize(size);
setMaximumSize(size);

game
= new Game();
screen = new Screen(WIDTH,
HIGHT);

}

public synchronized void
start(){
if (running) return;
running =
true;
new
Thread(this).start();
thread.start();

}

public
synchronized void stop(){
if (running)
return;
running = false;
try
{
thread.join();
} catch
(InterruptedException e)
{
e.printStackTrace();
}

}

public
void run(){
while (running)
{
tick();
render();
Map.printMap();
}
}

private void tick()
{
game.tick();

}
private void
render() {
screen.render(game);

}

public static void main(String[] args)
{
QuestComponent game = new
QuestComponent();

JFrame frame = new
JFrame("Quest: A Demo
Unleashed");
frame.add(game);
frame.pack();
frame.setResizable(false);
frame.setLocationRelativeTo(null);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setVisible(true);
boolean
screenLoad = true;
if(screenLoad = true)
{
System.out.println("Screen Successfully
Loaded!");

game.start();

}

}

}

[/quote]

This is my class that loads my map

package com.bloodtake.quest.world;

// Imports
import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.*;
import javax.swing.JFrame;

// Game Imports

public abstract class Map extends JFrame {

private static final long serialVersionUID = 1L;

public static BufferedImage map;

public void init(){
try{
map = ImageIO.read( getClass().getResource("A1.png"));
}
catch(IOException e) {
System.out.println("Load Image error:");
}
}

public static void printMap(){
System.out.println("Loading map...");

// This is the section where the image (A1.png) needs to print so in my main class is can load.

//known as Map.printMap()

}

}
[/quote]

Juliean

7,344

October 24, 2011 07:04 PM

I don't know java very much, but my first quess is that "A1.png" as input for getClass().getResource() is too less. Try passing the whole directory, like "C:\Pictures\A1.png".

Bloodtake

100

Author

October 24, 2011 07:20 PM

Sorry its ment to be:
[color="#2a00ff"][color="#2a00ff"]Res//Maps//A1.png

Bloodtake

100

Author

October 26, 2011 04:08 PM

Im now working on it if anyone can help!

kuramayoko10

390

October 28, 2011 07:09 PM

First, when posting code in the forums use "code" tags, so it will ident the code and make it easier for reading.

As for your issue, I can't help you much directly with your code, however I can suggest you a way to do this:

1) Create a class that inherits from JPanel. This class could have name "ImagePanel" or "LoadImage", because it will be responsible for loading and painting your image.
2) A JPanel have the method void paint(Graphics g). We are going to overwrite it so that even when we don't have an image loaded, the panel can be drawn on screen without problems.
3) I then create a function to load the image that I want (get the absolute path to that), and a new function for drawing. This new drawing function will be able to draw objects of the type Graphics2D

An example is the following:



public class ImagePanel extends JPanel

{

  private String filepath;

  private BufferedImage img;



  public ImagePanel()

  {

  	this.setBackground(Color.white);

  }

  public ImagePanel(String filepath)

  {

  	this.setBackground(Color.white);

  	this.filepath = filepath;

  }



  public void changePicture(String filepath)

  {

  	this.filepath = filepath;

  }



  public void loadPicture()

  {

	try

   	{

      	img = ImageIO.read(new File(filepath));

    	}

  	catch(IOException ex)

  	{

   		ex.printStackTrace();

  	}

  }



  public void drawPicture()

  {

  	Graphics2D g2D;



  	g2D = (Graphics2D)this.getGraphics();

   	g2D.drawImage(img, 0, -30, null);

  }



  public void cleanPanel(Color c)

  {

  	Graphics2D g2D;



  	g2D = (Graphics2D)this.getGraphics();



  	g2D.setColor(c);

  	g2D.fillRect(this.getX()-20, this.getY()-130, this.getWidth()+20, this.getHeight()+120);

  }



  @Override

  public void paint(Graphics g)

  {

  	super.paint(g);



  	g.drawString("<No Picture>", 0, 0);

  }

}

Programming is an art. Game programming is a masterpiece!

Help with my Image Loading

This topic is closed to new replies.

Popular Topics

Recommended Tutorials

Help with my Image Loading

This topic is closed to new replies.

Popular Topics

Recommended Tutorials

Reticulating splines