loading maps for a 2d game ERROR
Hi i'm trying to just get a basic map working but i keep getting and error and i'm not sure what is causing it.
Here is the code:
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.io.*;
import java.util.*;
class MapExample extends JFrame {
ArrayList <String> lines = new ArrayList <String> ();
int lgth;
int bdth;
String userResponse;
int level;
char[][] myMap;
public MapExample() {
readMap();
parseMap();
}
public static void main(String args[]) {
System.out.println("Starting MapExample...");
MapExample mainFrame = new MapExample();
mainFrame.setSize(400, 400);
mainFrame.setTitle("MapExample");
mainFrame.setVisible(true);
}
public void readMap () {
FileReader readBase;
BufferedReader in;
String temp;
temp = "";
try {
readBase = new FileReader ("level1.map");
in = new BufferedReader (readBase);
temp = in.readLine();
while (temp != null) {
lines.add(temp);
temp = in.readLine();
}
}
catch (IOException except) {
JOptionPane.showMessageDialog (null, "A Horrible Error!");
}
}
public void parseMap () {
String aLine;
aLine = "";
char tmp;
tmp = 'a';
lgth = lines.size();
bdth = lines.get(0).length();
myMap = new char[lgth][bdth];
for (int i = 0; i < lines.size(); i++) {
aLine = lines.get(i);
for (int j = 0; j < aLine.length(); j++) {
tmp = aLine.charAt(j);
myMap[j] = tmp;
}
}
for (int i = 0; i < lgth; i++) {
for (int j = 0; j < bdth; j++) {
System.out.print (myMap[j]);
}
System.out.println();
}
}
public void paint(Graphics g) {
int gx, gy = 40;
for (int i = 0; i < lgth; i++) {
gx = 20;
for (int j = 0; j < bdth; j++) {
g.fillRect (gx, gy, lgth, bdth);
switch (myMap[j]) {
case '#' : g.setColor (Color.RED); break;
case '@' : g.setColor (Color.GREEN); break;
case '$' : g.setColor (Color.BLUE); break;
case '.' : g.setColor (Color.BLUE); break;
default : g.setColor (Color.BLACK); break;
}
g.fillRect (gx, gy, 20, 20);
gx += 20;
}
gy += 20;
}
}
Sorry about the layout of the code only way i could fit it in.
The error i keep getting is:
Starting MapExample...
Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 14
at MapExample.parseMap(MapExample.java:99)
at MapExample.<init>(MapExample.java:33)
at MapExample.main(MapExample.java:38)
Process completed.
I'm not sure why it does this?
Also here is level1.map file:
"M^^^^#####" +
"M^^^^##" +
"M^^^^#$ #" +
"M^^### $##" +
"M^^# $ $ #" +
"M### # ## #^^^######" +
"M## ## ##### ..#" +
"M# $ $ ..#" +
"M##### ### #@## ..#" +
"M^^^^##########" +
"M^^^^#######"
}
Any help would be greatful!
Cheers Paul
[3242 byte] By [
paul.ga] at [2007-11-27 4:20:44]
I second the recommendation of putting your code within code tags.
See which is easier to read, this code without tags:
import java.util.ArrayList;
import java.util.Random;
class RandomLetters
{
private int size = 0;
private char startingChar = 'A';
private ArrayList<String> letterList;
private Random rand;
public RandomLetters(int size) throws Exception
{
this.size = size;
rand = new Random();
if (size % 2 != 0)
{
throw new Exception(
"RandomLetters requires an an even number int parameter");
}
resetList();
}
public RandomLetters(int size, char startingChar) throws Exception
{
this.size = size;
this.startingChar = startingChar;
rand = new Random();
if (size % 2 != 0)
{
throw new Exception(
"RandomLetters requires an an even number int parameter");
}
resetList();
}
public void setStartingChar(char startingChar)
{
this.startingChar = startingChar;
}
/**
* refills the list w/ random characters.
*
*/
public void resetList()
{
letterList = new ArrayList<String>();
for (char myChar = startingChar; myChar < startingChar + (size / 2); myChar++)
{
letterList.add(String.valueOf(myChar));
letterList.add(String.valueOf(myChar));
}
}
/**
* gets a random letter from letterList then removes that
* item from the list.
*
* @return
*/
public String getRandomLetter()
{
int randomInt = rand.nextInt(letterList.size());
String temp = letterList.get(randomInt);
letterList.remove(randomInt);
return temp;
}
}
and the same code with tags:
import java.util.ArrayList;
import java.util.Random;
class RandomLetters
{
private int size = 0;
private char startingChar = 'A';
private ArrayList<String> letterList;
private Random rand;
public RandomLetters(int size) throws Exception
{
this.size = size;
rand = new Random();
if (size % 2 != 0)
{
throw new Exception(
"RandomLetters requires an an even number int parameter");
}
resetList();
}
public RandomLetters(int size, char startingChar) throws Exception
{
this.size = size;
this.startingChar = startingChar;
rand = new Random();
if (size % 2 != 0)
{
throw new Exception(
"RandomLetters requires an an even number int parameter");
}
resetList();
}
public void setStartingChar(char startingChar)
{
this.startingChar = startingChar;
}
/**
* refills the list w/ random characters.
*
*/
public void resetList()
{
letterList = new ArrayList<String>();
for (char myChar = startingChar; myChar < startingChar + (size / 2); myChar++)
{
letterList.add(String.valueOf(myChar));
letterList.add(String.valueOf(myChar));
}
}
/**
* gets a random letter from letterList then removes that
* item from the list.
*
* @return
*/
public String getRandomLetter()
{
int randomInt = rand.nextInt(letterList.size());
String temp = letterList.get(randomInt);
letterList.remove(randomInt);
return temp;
}
}
Also, post the total error message, not just that errors occur.
good luck!
/pete
