Control Rectangle And Determine Where It Moves - Key Presses
Mar 11, 2014
I am writing a program where i am trying to control a rectangle and determine where it moves, everything is working fine it is moving but i am trying to figure out how to change direction using the "WASD" keys. This is what I have and I am not sure why its not working.
Java Code:
addKeyListener( new KeyAdapter() {
public void keyReleased(KeyEvent event) {
for (MoveableShape creature : creatures) {
if (((Creature)creature).isPlayer()) {
if (event.getKeyCode() == KeyEvent.VK_W) //up
[Code] ....
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Jan 25, 2014
I finished a game. It works perfectly fine on my computer. Sent it to a friend. On his computer, for some reason, one of the keys that are used to play doesn't work inside the game. (It works in any other context, like a web browser).
He tried pushing this key with no other keys held. Still didn't work. So it's not a 'key combination' issue. We both use Windows and the most updated JRE version.
The key that doesn't work on his computer, is: ; (semicolon)
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Mar 6, 2015
I'm building a pokemon battle simulator, as I mentioned in my previous post, and I'm starting from simplest game form and then adding complexities. right now I'm trying to give my pokemon multiple moves to randomly(for now) choose from. and I started with an int[] array that holds the magnitude of each move. But then it occurred to me that moves need to have multiple attributes like name, type, damage.. etc.. and also they can be acquired by more than one pokemon, and having them as an array would mean literally that I would have to make multiple arrays and it would involve a lot of repetitiveness.
So I settled on Objects, however the first challenge that faced me was, how to introduced the different types of moves? one one hand, I have healing moves,which acts on the pokemon's own health. on the other hand, I have attacking moves,which acts on the other pokemon's health. Given that both types of moves need to be in the same object array, I thought of polymorphism and created a superclass "Moves", which has HealingMoves and FightingMoves as subclasses, so both can be sent to the Moves[]. but since these moves have different effects, I had to make an new if statement that checks for class of move selected and based on that does different things. How the game's logic is going so far? is this the right way to introduce moves?
This is somewhat out of topic, but what is the difference between these two statements:
1-System.out.println(user.moveList[2].getClass().equals(HealingMoves.class)
2-System.out.println(user.moveList[2].equals(HealingMoves.class)
statement two always evaluated to false for some reason...
GameClass
public class OutPut {
static Monster user=new Monster("Me");
static Monster playerOne;
static Monster playerTwo;
static Monster android=new Monster("android");
static Scanner userFeed=new Scanner(System.in);
public static void turnSelection()
[Code] ....
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Feb 16, 2014
I'm trying to make a puzzle that gets the user input and moves the rows either to the left or right, the columns move either up or down depending on what the user wants. The problem I'm getting is a type mismatch for my RL method which moves the rows to the left.
import java.util.*;
import java.io.*;
public class Numbrosia {
static int [][] board = new int [5][5];
public static void main(String[]args){
Scanner scan = null;
try{
[code]....
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Aug 31, 2014
I'm trying to create a cursor for a game that moves square by square. While it will move to the next square, though, it leaves the image of the previous cursor on the last square it was on.
As a visual explanation, this is what the program looks like on launch:
This is what it's suppose to look like after you press the right arrow key once (made by forcibly changing launch coordinates):
And this is what it actually looks like after you press the right arrow key once:
Here is the code for the program:
package cursortest;
import javax.swing.*;
import java.awt.*;
import javax.imageio.*;
import java.io.*;
import java.awt.event.*;
public class CursorTest extends JPanel implements KeyListener{
[Code] ......
I'm fully aware that I could just use g.clearRect on the area and remove it for sure, but I know for a fact I shouldn't have to as I have another program I made a long time ago that tried to do something similar without needing to resort to that.
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Oct 11, 2014
Is there a way you can control user input?
For example, is it possible to only allow the user to enter digits?
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Nov 18, 2014
how am i supposed to make line1B with "1f" and line2B with width of "10f"?
PHP Code:
import java.awt.*;
import java.awt.event.*;
import java.applet.Applet;
[code]....
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Sep 2, 2014
So I'm working on some networking code and I have the Server running as its own thread, then I have a PacketListener which is contained in the Server, that is running on its own thread too. As of right now, the PacketListener waits for packets via DatagramSocket.receive() and then adds them to a queue. The Server runs in a loop and it checks that queue for packets and then polls the most recent and process it before sleeping for 1 millisecond. Here is my question though, I'm considering changing the program to a more observer pattern structure in that when the PacketListener would receive a packet, rather than add it to the queue, it'd notify the server which would process it. However, wouldn't this cause additional time required within the PacketListener thread dedicated to processing the packets rather than listening for them?
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Jun 14, 2014
I have a multithreaded java program. I have a few worker threads which process data over a udp server. Then I have another thread for console input. The problem is when there is an error with one of the worker threads, and it prints to the console, my console thread loses "focus", that is, the while loop seems to no longer run. Here is the console thread:
Java Code:
public void run() {
Console c = System.console();
if (c == null) {
Logger.writeError("No console.");
System.exit(1);
}
while(true){
String login = c.readLine(">>>: ");
System.out.println("You entered: " + login);
}
} mh_sh_highlight_all('java');
When an exception is raised, it prints it to the console, and suddenly the program no longer shows the >>> prompt from above.
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Jul 24, 2014
I'd like to ask is there way to control the RMI lookup timeout through programming or network configurations.
In a testing environment, I have purposely disconnect or plug out the cable between two testing servers to check the reliability.
It took very long time for the RMI API to throw out java.rmi.ConnectException which used Naming.lookup(givenURL).
I have tried to set system properties like sun.rmi.transport.tcp.handshakeTimeout, but it didn't take effect at all.
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Apr 1, 2014
I'm a student designing and developing an Air Traffic Control (ATC) system for incoming aircraft, mainly implementing the part which handles the queuing system for approaching aircraft.
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Apr 4, 2014
I'm trying to implement a functionality which will control the visibility of three outputText. I'm using a selectOneMenu, which has three options. Each option will enable visibility of one outputText, and rest will be invisible.
I used the following code
<h:selectOneMenu id="search" styleClass="select-box" value="#{empMB.showHide}" required="true" requiredMessage="Please Select an Option" >
<f:selectItem itemLabel="-----Select----"/>
<f:selectItem itemLabel="By Name" itemValue="1"/>
[Code] ....
Initially all outputText s is invisible as rendered value is false, but when I select different options, their respective outputText s are not visible.
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Apr 23, 2014
Java code to build control flow graph of any user program in jframe...
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Feb 24, 2015
How to Write Program with out using control structures
IMG_4216.JPG
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Aug 18, 2014
I am having a problem with the SelectOneMenu control. I want the the selected item to be be displayed via the valueChange Ajax event listen. But this is not happening.
However, when I change the value in the SelectOneMenu and then click on the Submit button, then selected value is getting displayed via the 'save' bean function
The relevant xhtml code is as follows:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:p="http://primefaces.org/ui"
xmlns:f="http://java.sun.com/jsf/core">
<h:head>
<style type="text/css">
[Code] .....
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Jul 22, 2014
I have developed JavaFx application with playback option using JavaFx Media player and slider controls. I am updating slider value using javafx mediaplayer.currentTime().addListener() method by adding Change/Invalidate listener.
While playing MP4 video, slider values are not updating (Change/Invalidate listener not getting triggered while playing video) on Mac OS(version : 10.9.1). Below is the sample code snippet.
mediaPlayer.currentTimeProperty().addListener(new InvalidationListener() {
@Override
public void invalidated(javafx.beans.Observable o) {
updateSliderValue();
}
});
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Dec 5, 2014
I am currently building a java music player and need getting the volume control to work. I want to be able to set the computers volume directly using an integer. I've created a slider and put the value into an integer. The part that I am having trouble with is getting the volume to work.
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Jul 26, 2014
I am going to to develop an app for my final year project. basically the app is to show live video streaming on android phone from remote CCTV . The project is just in design phase i know the networking part i.e static ip for dvr etc but i dnt know how to get stream of data from dvr and how to control the CCTV camera i.e camera movement....
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Jan 26, 2015
How can I set the default stylesheet for a user control that I have created? I want to make the control available for anyone to use and I want it to use a stylesheet by default without the user of the control having to do anything. I also want it to be possible for the user of the control to override the definitions set on the default stylesheet if he wants to.
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Feb 4, 2015
My question is regarding the the Inversion of Control (IoC) and Dependency Injection (DI) patterns, when learning about Spring i saw that people keep talking about Ioc and Dependecy Injection like if its the same thing!
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Nov 5, 2014
TabPane and Pagination controls. However, I would like to be able to create a vertical toolbar that controls page or tab display.
Is it possible to create a Pagination with no page control? Or is my guess of sizing the Pagination control so that the lower section is off of the displayed window, thus hiding the page info? Or, is it possible to create a TabPane with panels, but no tabs?
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Apr 2, 2014
When I am watching scjp mock test, I am getting error about security.
I am trying to add www.javaranch.com to site exception list in java control panel. I can see security tab in java control panel, there I find field for Site Exception List. When I am add [URL] .... to this site exception list, list is not getting populated.
Why is that ? Why am I unable to add this site to list ?
I am using 64-bit system and have downloaded and installed 64 bit update patch 51.
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May 21, 2014
If I use an instance of Tooltip in my custom-control, it can not be imported to SceneBuilder any more. Using Tooltip in my custom-control skin works - is that the way it is supposed to be?
Background: I have a control (ValidatedTextField) which uses Tooltips to inform about unwanted characters. It works in SceneBuilder1.x.
SceneBuilder 2 does not "accept" this control unless I take out all Tooltips. I have verified this behavior with some other working controls.
I have found a workaround to use the Tooltip in the Skin.
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Apr 12, 2014
obstacleX = (int) (obstacleX - 0.1);
if(obstacleX <= 0){
obstacleX = 600;
}
repaint();
Thats my code, and the rectangle (ObstacleX is the X cordinate for the rectangle) goes fine on the first few times across the screen, then starts to go hyperspeed....
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Sep 17, 2014
I have to do the following: A bounding rectangle is the minimum rectangle that encloses a set of points in a two-dimensional plane. Write a method that returns a bounding rectangle for a set of points in a two-dimensional plane, as follows:
public static MyRectangle2D getRectangle(double[][] points)
The Rectangle2D class is defined in Programming Exercise 10.13. Write a test program that prompts the user to enter five points and displays the bounding rectangle's center, width, and height. Here is a sample run:
Enter five points: 1.0 2.5 3 4 5 6 7 8 9 10.The bounding rectangle's center (5.0, 6.25), width 8.0, height 7.5
This is my code so far, taking in account that Rectangle2D is already done in a previous problem.the thing is that i don't know if i have to erase public static void or do i leave it or how do i start it?
package theboundingrectangle;
import java.util.Scanner;
public static MyRectangle2D getRectangle(double[][] points)
public class TheBoundingRectangle {
public static void main(String[] args) {
// TODO code application logic here
}
}
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Apr 21, 2015
in order to speed up my application I want 'paintComponent(Graphics g)' to only write the visible area in my viewport. I can not find how to get that Rectangle from my JScrollPane.
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