I'm trying to make a tilemapper in Java using a JApplet. The problem is that it only shows a white box when I try to display the tilemap. I'm pretty sure it has something to do with me using the wrong method to load all the images into tileArray. Also, the only code that really matters here (as in, the rest works) is init(), paint(), drawTilemap() and the top, where I declared all the variables. Here is the code:
Code:
Edit: I don't know why it wouldn't work before, but if I put drawTilemap() before the the command to copy the tilemapImage over to the backBuffer. Also, I have it so that I can scroll the tilemap
Code:
import java.applet.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
// Set your own class name
public class Tilemap extends JApplet
implements KeyListener, MouseListener
{
// Your variables
Image[] tileArray = new Image[4];
String[] tilePictureNames = { "Air", "Water", "Earth", "Fire" };
int[][] tilemap =
{ { 0,0,0,0 },
{ 0,3,0,0 },
{ 0,2,2,1 },
{ 2,2,1,1 } };
Graphics tilemapBuffer;
Image tilemapImage;
final int TILESIZE = 10;
boolean leftPressed, rightPressed, downPressed, upPressed; // Keys you want to respond to
Graphics backBuffer;
Image bufferImage;
Timer myTimer;
boolean hasBeenInInit = false;
public void init()
{
// Your stuff to be initialized
for (int i = 0; i < tileArray.length; i++)
{
tileArray[i] = getImage(getCodeBase(), tilePictureNames[i] + ".jpg");
}
tilemapImage = createImage(tilemap[0].length * TILESIZE, tilemap.length * TILESIZE);
tilemapBuffer = tilemapImage.getGraphics();
drawTilemap();
hasBeenInInit = true;
bufferImage = createImage(getWidth(), getHeight());
backBuffer = bufferImage.getGraphics();
myTimer = new Timer(30, updateStuff);
myTimer.start();
addMouseListener(this);
addKeyListener(this);
}
public void paint(Graphics g)
{
if (!hasBeenInInit)
init();
backBuffer.fillRect(0,0,500,500);
// Your stuff to be drawn to backBuffer
backBuffer.drawImage(tilemapImage,0,0,this);
g.drawImage(bufferImage,0,0,this);
}
public void update(Graphics g)
{
paint(g);
}
ActionListener updateStuff = new ActionListener()
{
public void actionPerformed(ActionEvent e)
{
// Your stuff to be updated
repaint();
}
};
public void drawTilemap()
{
for(int y = 0; y < tilemap.length; y++)
{
for(int x = 0; x < tilemap[0].length; x++)
{
tilemapBuffer.drawImage(tileArray[tilemap[y][x]],
x * TILESIZE,
y * TILESIZE,
this);
}
}
}
public void keyPressed(KeyEvent evt)
{
int key = evt.getKeyCode();
// Your keys to be responded to
if (key == KeyEvent.VK_LEFT)
leftPressed = true;
if (key == KeyEvent.VK_DOWN)
downPressed = true;
if (key == KeyEvent.VK_RIGHT)
rightPressed = true;
if (key == KeyEvent.VK_UP)
upPressed = true;
}
public void keyReleased(KeyEvent evt)
{
int key = evt.getKeyCode();
// Same keys, but now set each boolean to false
if (key == KeyEvent.VK_LEFT)
leftPressed = false;
if (key == KeyEvent.VK_DOWN)
downPressed = false;
if (key == KeyEvent.VK_RIGHT)
rightPressed = false;
if (key == KeyEvent.VK_UP)
upPressed = false;
}
public void mousePressed(MouseEvent evt)
{
requestFocus();
}
public void mouseEntered(MouseEvent evt) { } // Required by the
public void mouseExited(MouseEvent evt) { } // MouseListener
public void mouseReleased(MouseEvent evt) { } // interface.
public void mouseClicked(MouseEvent evt) { }
public void keyTyped(KeyEvent evt) { } // Required by KeyListener
}Edit: I don't know why it wouldn't work before, but if I put drawTilemap() before the the command to copy the tilemapImage over to the backBuffer. Also, I have it so that I can scroll the tilemap
