So I'm in my first programming class this quarter and I decided to test what I've learned so far and create my very first game! I completed a purely text based game that puts the user against a computer and attacks defends and evades trying to bring the computers life points down to zero.
I wanted to add some sort of visual animation to the game and i cant seem to find a way to make it so that when the user presses a button on the buttonPanel a specific animation will appear.
The goal is to have a default image of the human and computer standing on a battlefield, then when you press a button new frames will display in sequence making an animation, then i want the default image to display again.
I built a BattleGame class and then a RolePlay class that extends BattleGame.
My Question is: Why wont the images come up at all when i run the program. I tried putting the animation() method inside the attack() method and it still didn't work. The animation isn't coming up at all. I know the problem is inside the animation() method. I just don't know why it wont work.
http://i1209.photobucket.com/albums/cc400/squaredcorn/program_zps23d42f2d.png
The first chunk of code is the animation method I'm trying to create. The rest is the entire BattleGame class. "the animation method is just after actionPerformed
Thanks for any help, I know its a lot of code but I'm really desperate and I'm not sure why it doesn't work :'(
public Image[] frames = new Image[3];
public void animation() {
try {
frames[0] = ImageIO.read(new File("1.png"));
frames[1] = ImageIO.read(new File("2.png"));
frames[2] = ImageIO.read(new File("3.png"));
}
catch (Exception e) { }
JPanel gui = new JPanel(new BorderLayout());
final JLabel attackAnimation = new JLabel(new ImageIcon(frames[0]));
gui.add(attackAnimation, BorderLayout.EAST);
int index = 0;
if(index < frames.length){
index++;
if(index > frames.length) index = 0;
}
attackAnimation.setIcon(new ImageIcon(frames[index]));
final Timer timer = new Timer(200, this);
if(index >= 0){
timer.start();
}
else {
timer.stop();
}
}
import java.awt.Color;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.text.*;
import java.io.*;
import javax.imageio.ImageIO;
public abstract class BattleGame extends JFrame implements ActionListener
{
private JTextField[] fields;
public JTextArea display;
private JButton attackBtn;
private JButton blockBtn;
private JButton dodgeBtn;
private JButton fleeBtn;
/* Helper objects for simplifying common tasks */
public StringBuilder output = new StringBuilder(128);
public NumberFormat decimalFormat = new DecimalFormat("0.00");
public NumberFormat currencyFormat = NumberFormat.getCurrencyInstance();
public NumberFormat percentFormat = NumberFormat.getPercentInstance();
public DateFormat dateFormat = DateFormat.getDateInstance();
// constructor
public BattleGame(String... prompts)
{
super("Display Frame");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setSize(1000,750);
// store the number of prompts in a simple short variable
int rows = prompts.length;
JPanel entryPanel = new JPanel();
entryPanel.setLayout(new GridLayout(rows,2,4,4));
// create a new empty array of JTextFields where the number of
// elements is set to the number of rows
fields = new JTextField[rows];
// Use a standard for loop to build the entryPanel
for(int i = 0; i < rows; i++)
{
fields[i] = new JTextField(10);
entryPanel.add(new JLabel(prompts[i] + ":", JLabel.RIGHT));
entryPanel.add(fields[i]);
}
display = new JTextArea(7,50);
JScrollPane displayPane = new JScrollPane(display);
ImageIcon attackPicture = new ImageIcon("AttackButton.jpg");//start attack button with Icon
attackBtn = new JButton(attackPicture);//end attack Button with Icon
ImageIcon blockPicture = new ImageIcon("BlockButton.jpg");//start block button with Icon
blockBtn = new JButton(blockPicture);//end block button with Icon
ImageIcon dodgePicture = new ImageIcon("EvadeButton.jpg");//start dodge button with Icon
dodgeBtn = new JButton(dodgePicture);//end dodge button with Icon
ImageIcon fleePicture = new ImageIcon("FleeButton.jpg");//start flee button with Icon
fleeBtn = new JButton(fleePicture);//end flee button with Icon
JLabel animation = new JLabel();
attackBtn.addActionListener(this);
blockBtn.addActionListener(this);
dodgeBtn.addActionListener(this);
fleeBtn.addActionListener(this);
JPanel buttonPanel = new JPanel();
buttonPanel.add(attackBtn);
buttonPanel.add(blockBtn);
buttonPanel.add(dodgeBtn);
buttonPanel.add(fleeBtn);
add(animation, BorderLayout.EAST);
add(entryPanel, BorderLayout.NORTH);
add(displayPane, BorderLayout.WEST);
add(buttonPanel, BorderLayout.SOUTH);
//setVisible(true);
} // end constructor
public void actionPerformed(ActionEvent event)
{
if (event.getSource() == attackBtn)
{
// make sure all run-time errors are caught and handled by putting
// the run method in a try-catch block.
try {
attack();
display.setText(output.toString());
}
catch (Exception error) {
display.setText("There is a problem " + error.getMessage());
}
}
if (event.getSource() == blockBtn)
{
// make sure all run-time errors are caught and handled by putting
// the run method in a try-catch block.
try {
block();
display.setText(output.toString());
}
catch (Exception error) {
display.setText("There is a problem " + error.getMessage());
}
}
if (event.getSource() == dodgeBtn)
{
// make sure all run-time errors are caught and handled by putting
// the run method in a try-catch block.
try {
dodge();
display.setText(output.toString());
}
catch (Exception error) {
display.setText("There is a problem " + error.getMessage());
}
}
if (event.getSource() == fleeBtn)
{
// make sure all run-time errors are caught and handled by putting
// the run method in a try-catch block.
try {
flee();
display.setText(output.toString());
}
catch (Exception error) {
display.setText("There is a problem " + error.getMessage());
}
}
} // end actionPerformed()
public void clearOutput() {
getOutput().setLength(0);
getDisplay().setText("");
}
////////////////////////////////////////////////////
public Image[] frames = new Image[3];
public void animation() {
try {
frames[0] = ImageIO.read(new File("1.png"));
frames[1] = ImageIO.read(new File("2.png"));
frames[2] = ImageIO.read(new File("3.png"));
}
catch (Exception e) { }
JPanel gui = new JPanel(new BorderLayout());
final JLabel attackAnimation = new JLabel(new ImageIcon(frames[0]));
gui.add(attackAnimation, BorderLayout.EAST);
int index = 0;
if(index < frames.length){
index++;
if(index > frames.length) index = 0;
}
attackAnimation.setIcon(new ImageIcon(frames[index]));
final Timer timer = new Timer(200, this);
if(index >= 0){
timer.start();
}
else {
timer.stop();
}
}
////////////////////////////////////////////////////
public JTextArea getDisplay() {
return display;
}
/** @return output object */
public StringBuilder getOutput() {
return output;
}
// set method for fields
public void setField(int index, String text)
{
fields[index].setText(text);
}
// get method for fields
public String getField(int index)
{
// get the text from the field and return it to the caller
return fields[index].getText();
}
public int getFieldAsInt(int index)
{
// convert the text to an int and return it to the caller
return Integer.parseInt(getField(index));
}
public double getFieldAsDouble(int index)
{
// convert text to a double and return it to the caller
return Double.parseDouble(getField(index));
}
/**
* This method builds the output string that will eventually be displayed
* in the text area as the final problem solution report.
* @param value value will be appended to the StringBuilder object with a
* new line character at the end.
*/
public void addOutput(String value)
{
output.append(value);
output.append("\n");
}
// a python-like print method that takes any kind of object
public void print(Object obj)
{
System.out.println(obj);
}
// run must be implemented in all subclasses
public abstract void attack();
public abstract void block();
public abstract void dodge();
public abstract void flee();
} // end class
