How To Add Background Sprite Before The Map

Apr 18, 2014

I need to draw a sprite before the map but it never works.

My Code ( without the background sprite ) :

Java Code:
package com.TEST.Dermat.screens;
import com.TEST.Dermat.entities.Player;
import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.Screen;
import com.badlogic.gdx.graphics.GL20;

[Code] .....

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Handling Sprite Overlapping?

Sep 16, 2014

The game I am working on now is an overhead game. Anyways I have a visual issues with the sprites where they overlap. I mean its normal to have sprites overlap but I do not want one to appear like it is walking on top of the other rather than the ground. The below is an image illustration the issue I want to address. (I am really good at drawing)

On the right you see what I want my sprites to do, but on left you see overlap in the way I am trying to avoid.

Now my approach to this problem is taking my array of monsters (a class that extends JLabels) and reordering them based on which monster is higher I make this occur at every run of my thread. It seems to me that if a monster is higher it should be added to the screen before the one that is lower. So I try to keep resorting the array of monsters at every iteration of my main game loop based on who is higher to account for the overlap

if (e.getSource() == follower){
c =0;
for (monster m: monsters) {
//Arrays.sort(monsters, new whoHigherComparator()); //I tried having the sort happen here
m.movingToPlayer(joe);//1
Arrays.sort(monsters, new whoHigherComparator());//2
layeredScene1.add(m, new Integer(3));//3

[code]...

The above is code that shows the majority of my games flow I will describe my flow with references to the commented lines above with [num] for better understanding of where I am coming from. Basically, there is a set number of monsters, the monster all locate and move to the player [1], then I attempt to sort the monster array based on height [2], then add my re-sorted monsters back onto the pane in order [3], then bumpers (a type that handle collision and make sure monsters don't overlap too much) attach the current monster [4], if bumpers are touching monsters arae moved away from each other until their bumpers are no longer touching [5], if the monster is moving leftwards set the animation to a leftwards walk [6], and likewise for rightwards walking [7]

By the way this is my comparator

public class whoHigherComparator implements Comparator<monster>
{
@Override
public int compare(monster m1, monster m2) {
System.out.println("comping?");
int h1 = m1.getY();
int h2 = m2.getY();
if (h1 < h2)

[code]...

At this point everything in my game flow works just fine, its just the annoying "walking on top of each other" effect that I am having trouble handling. And my attempt at this is line [2] & [3] from my game flow which seems like it would be an effective way to handle the "walking on top of another" effect but its surely not working. I also swapped the returns from my comparator but still no changes. It seems that maybe the array isn't being sorted and/or these changes are just not being reflected.

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Basic Sprite Character Movement

Aug 18, 2014

how I would go about having a moving sprite on a page, such as a virtual pet kind of thing. I've tried searching for it through the years and I've tried it with what I know on my own, but things just act up every time. Either:

A.) The sprite moves (respondent to key strokes, of course), but leaves a trail of its image behind itself.

B.) The background image writes, but for some reason the second image does not write, or is lost behind the background.

I'm sure these are simple issues for most of you, but I've tried going about this for a while now with no luck. What I'm trying to do I'm trying to write a virtual pet game, and I would eventually love to make it move around randomly like an A.I. that's pathfinding, but I've got ideas about that, just I need to know how to make it move period first, everything else I think I could figure out on my own.

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Apr 6, 2014

I am currently making a platformer game which involves a scrolling panel and a sprite. My intention is for the sprite to be able to jump. My code for the frame that the scrolling panel sits on looks like this:

package Main;
import java.awt.Container;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
 
[Code] ....

Currently I have the sprite (jumpMan) displayed on the JumpPanel. This is where I have a key listener that intends to control the jumping of the sprite by incrementally moving the sprite through the space to simulate jumping slightly more accurately. The JumpPanel is laid on top of a panel called the GamePanel which sits between the main frame and the JumpPanel. I currently have a timer on the main frame which is firing off the action listener every 5ms.

My hope was that the action performed would repaint at intervals so that the you would be able to see the sprite at different stages of the jump and then as it descends as well. However when I try to make the sprite jump nothing happens, nothing changes on the screen - when I debug through I can see the code going into both the keyPressed and actionPerformed methods but this doesn't seem to do anything.

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Jan 22, 2015

I am developing in Android Studio and I made a simple background, the actual resolution of the image is 1440 by 2560. I made it that resolution so, 1, it is easier to scale down than up, and 2, in android studio i use a nexus 6 as my preview. When I plugged in my gs4, not a 1440 by 2560 display, the background wouldn't show up when I ran it on my gs4(galaxy s 4). How do i get my background to scale and display on any display size.

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Set Background In Mouse Adapter

Sep 9, 2014

import java.awt.FlowLayout;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTextArea;
 import java.awt.BorderLayout;
import java.awt.Color;

[Code] .....

Isn't changing my backgrounds in my MouseAdapter I keep getting these errors:

at javax.swing.JComponent.processMouseEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)

[Code] ....

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Aug 19, 2014

My program's tree:

JFrame{
JPanel(That MenuBar at the top)
JPanel(That panel at center with table){
JScrollPane{
JTable
}
}
}

I want to add my custom image to that grey space right there. I guess it is a JScrollPane, because I added that orange background on JPanel that contains it. But when I add this code to my custom class of JScrollPane:

@Override
public void paintComponent(Graphics g) {
super.paintComponent(g);
if(background == null){
background = new ImageIcon(ClassLoader.getSystemResource("tableBg.png")).getImage();
}
g.drawImage(background, 0, 0, null);
}

The result is the same, no changes.

Then I read some documentation. I found this method:

scrollPane.getViewport().setBackground(Color c);

It works, but it accepts only color and I want to add image. Is there any way to do that? Do I need to subclass JViewport and use paintComponent ? If yes, then how to make getViewport() method return my custom subclassed version?

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Apr 9, 2014

the program runs fine with exception of color background change.. dont laugh at code.

package chapter7;
import java.awt.*;
import java.awt.event.*;

[Code].....

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Mar 20, 2014

I'm using notepad++

I want add background Image

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Apr 6, 2014

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Jan 9, 2015

This is my code and it works! But how/where do I set a background image for it to appear as the background of my calculator? The code I have for it is this -

window.setContentPane(new JLabel(new ImageIcon("C:UsersComputerDownloadschristm as1.jpg")));

My code is below.

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
/**
* Program using SWING components to create a Christmas themed Calculator.
*/
public class ChristmasCalculator implements ActionListener

[code]....

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Feb 6, 2015

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Jan 7, 2014

Java Code:

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class sample{
public static void main(String args[]){
JFrame frame = new JFrame();
frame.setSize(300,300);

[code]....

To limit the amount of drawing done i want unmoving objects to be painted once. So i set a boolean. When it first load the boolean is false so it draws then after first draw i never want it to draw the objects agian but leave them on the screen. Now in this if you run it you get a black screen.

If you didnt have the "getContentPane().setBackground(Color.black)" it would work fine and show a blue brick. Is there something I don't understand about the setBackgound Function that makes it automatically redone even when not called? and if so how do i overwrite this?

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Set Background Image To Calculator Using JLabel?

Jan 13, 2015

I have tried to set a background Image to a calculator usinf JLabel. However I've ended up with my image to the left of my calculator , my calculator textfield becoming the size of the background image and then all my buttons below it.
Like so(if you can view the image)..Calculator.jpg

How can I fix this so the background is behind my buttons and my text area is a normal size again.

My code is below :

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
 
/**
* Program using SWING components to create a Christmas themed Calculator.
*/
public class GridBag1 extends JFrame implements ActionListener

[Code] ....

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Oct 23, 2014

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Oct 31, 2014

What happens in background when user clicks on button on jsp?How the request goes?

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Jun 11, 2014

So I have basic java knowledge from 1st year of college and I wrote a program recently that sends keystrokes with the Robot class. Now I would like it to do the same but to send it to a window that isn't my active one.. I've searched and from what Ive found it seems like you cant do that in java, I need another language like C# (whick sux for me since i dont know any other then java).. Is this true? If not how would i send something to notepad for example while it is not the active window?

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Apr 10, 2014

Actually i want to develop a game for that i need a background with a image and over this background i want to move some objects (which are images) and also want to add some button.

Here is my Code.

The Main Class

package last;
import java.awt.*;
import javax.swing.*;
public class Last extends JFrame{
public static void main(String[] args) {
Last l =new Last();
l.setSize(900, 600);

[Code] .....

When i execute the above program only the background image is shown.

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Mar 30, 2014

I'm using eclipse to run my java program.

I want to be able to change the background color of the console when the user types in a particular command..

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Jan 2, 2014

I am trying to put a button (in a container) on a jpanel in a jframe with a background but the container is covering up the background with white color.Below I have an excellent SCCE:

Java Code:

package drawFramePackage;
//drawFramePackage
// Author: Nathan Nelson
import javax.imageio.ImageIO;
import javax.swing.JButton;
import javax.swing.JPanel;
import java.awt.Dimension;
import javax.swing.JFrame;

[code]...

Basically I just need to set the containers background to transparent.

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Nov 1, 2014

i am trying to make a platform game in java and to do this im trying to make a scrolling bacground. i can get the background image to scroll. However, i cant get the image to scroll forever, here is the code.

GamePanel class ( the jpanel )
public class GamePanel extends JPanel implements ActionListener{
static ArrayList<BackGround> store = new ArrayList<BackGround>();
public GamePanel(){
setFocusable(true);
Timer time = new Timer(5,this);
time.start();
store.add(new BackGround(0,-200));

the problem i have is that i want the bacground to loop. however, once the first instance of the background is done scrolling it freezes and doesnt load anymore. here is the code for adding a new background to the list

if(store.get(a).getX() <= -950 ){
GamePanel.store.get(a).setX(-900);
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Apr 30, 2014

I am trying to set a picture in the background of my GUI. I had already made the GUI with the all the required buttons and labels. So I was trying to separately make a class which extends JPanel and add a picture to a panel by overriding the paintComponent() method, and then added it to a frame (I did not set the default layout of the frame, so it was the default...), and it worked very fine. Here is the code:

Java Code:

private BufferedImage image;
public ParentPanel() {
try {
image = ImageIO.read(getClass().getResource("/com/dev_nna/scheduler/UI/1405188.png"));
} catch (IOException ex) {
ex.printStackTrace();

[code]....

Then I needed to add this panel with background picture to the background frame of my already made frame with all the buttons on it.The layout of the parent frame of my GUI was BorderLayout(50, 50), panels (with buttons) were added to it n the north and south positions.

Then I tried to add a JPanel with the background image to the parent frame (of my GUI), (I wanted it to elapse the entire frame, and come under all the buttons and controls, which were only present in the north and south positions of the border layout), and then the panels holding the buttons to the north and south postions of this panel, everything disappeared.

If I don't do anything except adding this panel with the background image to the parent frame, it only takes up the place not taken up by the two panels on the frame (Border Layout)

how to add this panel to the parent frame of my GUI such that it elapses the entire parent frame's background, and the panels containing the buttons should sit on it.

IMPORTANT PARTS OF CODE:-
Java Code:
//TOP LEFT PANEL
JPanel topleftpanel = new JPanel(new FlowLayout(FlowLayout.LEFT, 5, 5));
parentPanel_top.add(topleftpanel);
topleftpanel.setOpaque(false);

[code]....

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Oct 21, 2014

I've just started working on a program and I'm already having difficulties with the program. I can't get the background color to change from the basic gray color.

Java Code:

import javax.swing.JFrame;
import javax.swing.WindowConstants;
import java.awt.*;
import java.lang.Object;
import java.awt.Color;
public class FrameDemo{

[Code] .....

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I've tried multiple things but I can't seem to figure out how to get my JButton over the background graphics. On lines 104-108 I create the JButton I need to put on the screen, though I have no clue how to draw it. How I can paint over this background and have my button stay there?

public static final int WIDTH = 1024;
public static final int HEIGHT = 640;
private Thread thread;
private boolean running;
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private Graphics2D g;

[Code] .....

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I've tried to add a background image to my calculator , however I have ended up with this ...Calculator.jpg

How do I fix it so the image is behind my buttons etc (as a background) And how do I fix my textarea so it is back to the normal size and not the height of the image? My code is below, please be specific.

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
 /**
* Program using SWING components to create a Christmas themed Calculator.
*/

public class GridBag1 extends JFrame implements ActionListener {
private JFrame window= new JFrame("Christmas Calculator");

[Code] .....

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