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POGUI running really slow JAVA
 

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    <p>So i'm making a little game again for a school project with 2 of my friends. We have this same idea as before, but now its all graphical (JPanel, JLabel etc. etc.). We have the basic GUI, but its running really slow. When i hit the arrow key, it responds in like 1-2 seconds, and if i hit the fast in a row, it might take up to 15+ seconds. Here's the code:</p> <p>Main</p> <pre><code>package game; import java.awt.GridLayout; import java.io.IOException; import javax.swing.JFrame; import javax.swing.JPanel; public class Gui extends JFrame{ private static final long serialVersionUID = 1L; int n = 0; int m = 0; static MapMake mapMake = new MapMake(); static MapRefresh mapRefresh = new MapRefresh(); static JPanel panel = new JPanel(); static Fighting fighting = null; public static void main(String[] args) throws IOException { Gui frame = new Gui(); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setTitle("Dungeons and Dragons(and some food)"); frame.setSize(1280, 720); mapMake.setDiscovered(0, 0, 1); panel.setLayout(new GridLayout(10, 10, 2, 2)); mapRefresh.MapRefresh(); frame.add(panel); frame.addKeyListener(new Listener()); frame.setVisible(true); } } </code></pre> <p>MapMake</p> <pre><code>package game; public class MapMake{ static int[][] discovered = new int[10][10]; static int[][] content = new int[10][10]; static int heroX = 0; static int heroY = 0; public void MapMake(){ discovered[0][0] = 1; for (int row = 0; row &lt; 10; row++) { for (int col = 0; col &lt; 10; col++) { discovered[row][col] = 0; } } discovered[0][0] = 1; int dragon1 = 3; int dragon2 = 5; int dragon3 = 7; int dragon4 = 9; int dragon5 = 1; int food = 25; // id 6 while (dragon1 != 0) { for (int i = 0; i &lt; 3; i++) { for (int j = 0; j &lt; 3; j++) { int x = (int) (Math.random() * 2); if (x != 1 &amp;&amp; dragon1 != 0 &amp;&amp; content[i][j] == 0 &amp;&amp; (i &gt; 0 &amp;&amp; i &lt; 3 || j &gt; 0 &amp;&amp; j &lt; 3)) { dragon1--; content[i][j] = 1; } } } } while (dragon2 != 0 &amp;&amp; food != 0) { for (int i = 0; i &lt; 5; i++) { for (int j = 0; j &lt; 5; j++) { int x = (int) (Math.random() * 2); if (x != 1 &amp;&amp; dragon2 != 0 &amp;&amp; content[i][j] == 0 &amp;&amp; (i &gt; 2 &amp;&amp; i &lt; 5 || j &gt; 3 &amp;&amp; j &lt; 5)) { dragon2--; content[i][j] = 2; } } } } while (dragon3 != 0) { for (int i = 0; i &lt; 7; i++) { for (int j = 0; j &lt; 7; j++) { int x = (int) (Math.random() * 2); if (x != 1 &amp;&amp; dragon3 != 0 &amp;&amp; content[i][j] == 0 &amp;&amp; (i &gt; 4 &amp;&amp; i &lt; 7 || j &gt; 4 &amp;&amp; j &lt; 7)) { dragon3--; content[i][j] = 3; } } } } while (dragon4 != 0) { for (int i = 0; i &lt; 9; i++) { for (int j = 0; j &lt; 9; j++) { int x = (int) (Math.random() * 2); if (x != 1 &amp;&amp; dragon4 != 0 &amp;&amp; content[i][j] == 0 &amp;&amp; (i &gt; 6 &amp;&amp; i &lt; 9 || j &gt; 6 &amp;&amp; j &lt; 9)) { dragon4--; content[i][j] = 4; } } } } while (dragon5 != 0) { for (int i = 0; i &lt; 10; i++) { for (int j = 0; j &lt; 10; j++) { int x = (int) (Math.random() * 2); if (x != 1 &amp;&amp; dragon5 != 0 &amp;&amp; content[i][j] == 0 &amp;&amp; (i &gt; 8 &amp;&amp; i &lt; 10 || j &gt; 8 &amp;&amp; j &lt; 10)) { dragon5--; content[i][j] = 5; } } } } while (food != 0) { for (int i = 0; i &lt; 10; i++) { for (int j = 0; j &lt; 10; j++) { int x = (int) (Math.random() * 2); if (x != 1 &amp;&amp; food != 0 &amp;&amp; content[i][j] == 0) { food--; content[i][j] = 6; } } } } discovered[0][0] = 1; } public int getDiscovered(int i, int j) { return discovered[i][j]; } public int getContent(int i, int j) { return content[i][j]; } public int getHeroX() { return heroX; } public int getHeroY() { return heroY; } public void setDiscovered(int i, int j, int k) { MapMake.discovered[i][j] = k; } public void setContent(int i, int j, int k) { MapMake.content[i][j] = k; } public void setHeroX(int heroX) { this.heroX = heroX; } public void setHeroY(int heroY) { this.heroY = heroY; } } </code></pre> <p>MapRefresh</p> <pre><code>package game; import java.awt.image.BufferedImage; import java.io.File; import java.io.IOException; import javax.imageio.ImageIO; import javax.swing.ImageIcon; import javax.swing.JLabel; import javax.swing.JPanel; public class MapRefresh extends Gui{ static MapMake mapMake = Gui.mapMake; @SuppressWarnings("unused") public void MapRefresh() { BufferedImage hall = null; BufferedImage valge = null; JPanel panel = Gui.panel; for (int i = 0; i &lt; 10; i++) { for (int j = 0; j &lt; 10; j++) { // panel.add(new JButton("" + content[i][j])); if (mapMake.getDiscovered(i, j) == 1) { panel.add(new JLabel("hero on siin peal")); } else if (mapMake.getDiscovered(i, j) == 0) { try { panel.add(new JLabel(new ImageIcon(hall = ImageIO.read(new File("C:/hall.jpg"))))); } catch (IOException e) { } catch (NullPointerException e){ } } else { try { panel.add(new JLabel(new ImageIcon(valge = ImageIO.read(new File("C:/valge.jpg"))))); } catch (IOException e) { } catch (NullPointerException e){ } } } } } } </code></pre> <p>and Listener</p> <pre><code>package game; import java.awt.event.*; import javax.swing.JPanel; public class Listener extends Gui implements KeyListener{ static MapRefresh mapRefresh = new MapRefresh(); static MapMake mapMake = Gui.mapMake; static JPanel panel = Gui.panel; static Fighting fighting = null; @Override public void keyPressed(KeyEvent e) { } @Override public void keyReleased(KeyEvent e) { int x = mapMake.getHeroX(); int y = mapMake.getHeroY(); if (e.getKeyCode() == 37 &amp;&amp; y &gt; 0){ mapMake.setDiscovered(x, y-1, 1); mapMake.setDiscovered(x, y, 2); mapMake.setHeroY(y - 1); } else if(e.getKeyCode() == 38 &amp;&amp; x &gt; 0){ mapMake.setDiscovered(x-1, y, 1); mapMake.setDiscovered(x, y, 2); mapMake.setHeroX(x - 1); } else if (e.getKeyCode() == 39 &amp;&amp; y &lt; 9){ mapMake.setDiscovered(x, y+1, 1); mapMake.setDiscovered(x, y, 2); mapMake.setHeroY(y + 1); } else if (e.getKeyCode() == 40 &amp;&amp; x &lt; 9){ mapMake.setDiscovered(x+1, y, 1); mapMake.setDiscovered(x, y, 2); mapMake.setHeroX(x + 1); } int z = mapMake.getContent(x, y); panel.removeAll(); System.out.println(e.getKeyCode()); mapRefresh.MapRefresh(); panel.validate(); panel.repaint(); } @Override public void keyTyped(KeyEvent e) { } } </code></pre> <p>I read that the "Try Catch" is slowing it down. Is that it? If so, how can i make it better? Or is this like complete trash?</p> <p>Keep in mind, that this is our first semester! Heres also a pastebin copy of it <a href="http://pastebin.com/VM1cTvyX" rel="nofollow">http://pastebin.com/VM1cTvyX</a></p>
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    1. COI have 2 images there ("hall" and "valge"). Just delete them if you want to try the code.
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