Love in Christ
Gift.

Love in Christ
Gift

http://java.sun.com/docs/books/tutorial/uiswing/events/mouselistener.html
http://java.sun.com/docs/books/tutorial/uiswing/events/mousemotionlistener.html

Good luck,
Vincent

†Caleb†

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"True friendship is not characterized by the absence of conflict, but by the ability to resolve conflict."

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Hebrews 12:28-29 NIV
"Therefore, since we are receiving a kingdom that cannot be shaken, let us be thankful, and so worship God acceptably with reverance and awe, for our 'God is a consuming fire.'"

Matthew 11:18-19 NIV
"For John came neither eating nor drinking, and they say, 'He has a demon.' The Son of Man came eating and drinking, and they say, 'Here is a glutton and a drunkard, a friend of tax collectors and "sinners."' But wisdom is proved right by her actions."

Every man has a battle to fight, an adventure to live and a beauty to rescue. ~John Eldrige

Love in Christ
Gift

God Bless,

Kevin

http://www.bhs.bismarck.k12.nd.us/madler/apcs/

1. I am getting some sort of exception thingy poping up in my console,
would that go away if I did a catch exception thingy?

2. I'm trying to draw a string onto my graphics buffer and it has some major issues and is spitting out all sorts of exceptions, would a catch exceptions thingy work here too?

Well just talking about it I have a few ideas, I would like to hear yours, if you would like to help out or what ever I wouldn't mind talking about it. I'm really trying to get something playable by CGDC.

Love in Christ
Gift

quote:

---

1. I am getting some sort of exception thingy poping up in my console,
would that go away if I did a catch exception thingy?

2. I'm trying to draw a string onto my graphics buffer and it has some major issues and is spitting out all sorts of exceptions, would a catch exceptions thingy work here too?

---

Java should tell you which line is generating the exception. Sounds like you're trying to access something that doesn't exist.

Telling us what kind of Exceptions you are getting might help. Source code, if you're willing.

Possibilities:

-You might be trying to create an object, but it isn't being created - check to make sure everything you create with "new" is actually being created.

-You might be trying to access something before it's created. Make sure what you're trying to access was actually created somewhere in the program.

(rant)

Making main rethrow the exception - not good idea destroyer. This would be better:

try { BufferedReader reader = new BufferedReader(new InputStreamReader (System.in)); } catch (IOException e) { // Handle exception here }

I also find it weird that destroyer's suggesting hooking a BufferedReader directly to System.in - I've never had to do that.

Then again, I've never written a gaming keyboard routine for Java. I imagine that one would look for a way to detect keys going up and down, so the game can handle simultaneous keystrokes.

A KeyListener listening for keyPressed and keyReleased would probably be better for a game.

(/rant)

Gift, make sure whatever you are trying to access exists!

MyObject myObject;

won't create an object!

MyObject myObject = new MyObject(myArguments);

will create an object. My guess is that somewhere you forgot a "new" statement.

Unfortunately, I don't have enough information to make anything better than an educated guess :/.

its giving the exception at this statement:
((x>(RegionArray[i].xpos-5))&(y>(RegionArray[i].ypos-5)))&((x<(RegionArray[i].xpos+5))&(y<(RegionArray[i].ypos+5)))

It looks like I have did all of those new statements but its definatly not acting like it.

The constructer looks like this:
int ActiveRegion;
Region RegionArray[];

// constructer
public void RegionSovereign() {
// this would load mostly UI stuff basicly all stuff
// that is not game state spisific

RegionArray = new Region[21];

RegionArray[0] = new Region(184,88,"Tarsus");
RegionArray[1] = new Region(67,221,"Salamis");
RegionArray[2] = new Region(272,140,"Antioch");
RegionArray[3] = new Region(254,152,"Seleucia");
RegionArray[4] = new Region(324,177,"Hamath");
RegionArray[5] = new Region(254,204,"Byblos");
RegionArray[6] = new Region(350,226,"Damascus");
RegionArray[7] = new Region(264,242,"Sidon");
RegionArray[8] = new Region(266,276,"Tyre");
RegionArray[9] = new Region(327,260,"Caesarea Philippi");
RegionArray[10] = new Region(249,310,"Ptolemais");
RegionArray[11] = new Region(313,334,"Capernaum");
RegionArray[12] = new Region(291,346,"Nazareth");
RegionArray[13] = new Region(267,370,"Samaria");
RegionArray[14] = new Region(234,364,"Caesarea");
RegionArray[15] = new Region(246,404,"Joppa");
RegionArray[16] = new Region(269,416,"Emmaus");
RegionArray[17] = new Region(292,414,"Jerusaleam");
RegionArray[18] = new Region(275,438,"Bethlehem");
RegionArray[19] = new Region(245,454,"Gaza");
RegionArray[20] = new Region(37,549,"Memphis");

this.ActiveRegion = 17;
}

If you guys have any more questions feal free to ask.

Love in Christ
Gift

Shouldn't the line

Region RegionArray[];

Region[] RegionArray;

Silly me, and I almost posted a reply about figuring out whether i was going out of bounds, and how to make sure the new statements were indeed allocating memory . Guess I didn't need to.

BTW, I prefer to put lists like this in a file for easy editing - hardcoding this stuff will make the program less flexible, especially if you plan on adding more regions in the future.

Having a team - or at least having somebody review your code - really helps.

God be with you and your project .

Love in Christ
Gift

try { // Put code that throws exception here } catch (Exception e) { System.out.println(e.toString()); }

and post the results from the Java console or terminal on this board.

If I can't figure it out then, I guess you'll have to email the source code. My email address is jeremiah_moss@cobraa1.com .

public void handleMapUI(int x,int y) {
for (int i=0; i<20; i++) {

try{ // Put code that throws exception here
if (((x>(RegionArray[i].xpos-5))&(y>(RegionArray[i].ypos-5)))&((x<(RegionArray[i].xpos+5))&(y<(RegionArray[i].ypos+5)))) {
ActiveRegion = i;

}
} catch (Exception e){ System.out.println(e.toString());}
}

// stuff
}

Here's the output:
java.lang.NullPointerException
java.lang.NullPointerException
java.lang.NullPointerException
java.lang.NullPointerException
java.lang.NullPointerException
java.lang.NullPointerException
java.lang.NullPointerException
java.lang.NullPointerException
java.lang.NullPointerException
java.lang.NullPointerException
java.lang.NullPointerException
java.lang.NullPointerException
java.lang.NullPointerException
java.lang.NullPointerException
java.lang.NullPointerException
java.lang.NullPointerException
java.lang.NullPointerException
java.lang.NullPointerException
java.lang.NullPointerException
java.lang.NullPointerException

It looks like it was probably thrown 20 times.
Here's the output I normally get:

java.lang.NullPointerException
at RegionSovereign.handleMapUI(RegionSovereign.java:72)
at GameSovereign.mouseDown(GameSovereign.java:300)
at java.awt.Component.handleEvent(Component.java:5246)
at java.awt.Component.postEvent(Component.java:3807)
at java.awt.Component.dispatchEventImpl(Component.java:3543)
at java.awt.Container.dispatchEventImpl(Container.java:1582)
at java.awt.Component.dispatchEvent(Component.java:3368)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:445)
at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:191)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:144)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:130)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:98)

Line 72 is the if statement.
Its got me beat.

Love in Christ
Gift

Take out my try{} block, and place this code before the for loop:

if(x==null) { System.out.println("x is null"); } if(y==null) { System.out.println("y is null"); } if(RegionArray==null) { System.out.println("RegionArray is null"); } if(RegionArray[1]==null) { System.out.println("RegionArray[1] is null"); } if(RegionArray[1].xpos==null) { System.out.println("RegionArray[1].xpos is null"); } if(RegionArray[1].ypos==null) { System.out.println("RegionArray[1].ypos is null"); }

This should tell us if there's something that hasn't been created yet. We'll slay this bug eventually.

On a side note, that should be

for (int i=0; i<=20; i++)

RegionArray is null

I make the Region Sovereign in my main sorta like this:
RS = new RegionSovereign(); // init region sovereign

The region class and constructor looks sorta like this:

public class RegionSovereign {

// variables

int ActiveRegion;
Region[] RegionArray;

// constructer
public void RegionSovereign() {
// this would load mostly UI stuff basicly all stuff
// that is not game state spisific

RegionArray = new Region[21];

RegionArray[0] = new Region(184,88,"Tarsus");

the rest has been previously published.

Hope this helps in finding the bug.

Love in Christ
Gift

Check the scope of RegionArray, make sure handleMapUI can see it!

If that's not the problem, E-mail me the code. It's hard to diagnose the problem from here.

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:-)Boss Benz:-)

My game will be a pretty basic 2D game. I'm trying to build the UI far enough to get the game play and the features far enough to convince some people that its a worthwhile ministrey, people need to catch the vision, to get some people to help make everything better.

Love in Christ
Gift