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  [SOLVED] LIBGDX for loop crashes game when it shouldn't....  (Read 693 times)
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Offline wreed12345

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Medals: 24
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« Posted 2013-01-12 02:14:55 »

I have a simple for loop:
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package com.reed.sidescroller;

import com.badlogic.gdx.graphics.g2d.SpriteBatch;

public class Objects {
   private static int[] x = { 0, 103, 206, 309, 412, 515, 618, 721, 824, 927, 1030, 1033,
         1036, 1039, 1042 };
   public static void grass(SpriteBatch batch) {
      for (int i = 0; i < 16; i ++){
         batch.draw(Assets.grassAndDirt, x[i] , 0);
      }
      /*
      batch.draw(Assets.grassAndDirt, x[0], 0);
      batch.draw(Assets.grassAndDirt, x[1], 0);
      batch.draw(Assets.grassAndDirt, x[2], 0);
      batch.draw(Assets.grassAndDirt, x[3], 0);
      batch.draw(Assets.grassAndDirt, x[4], 0);
      batch.draw(Assets.grassAndDirt, x[5], 0);
      batch.draw(Assets.grassAndDirt, x[6], 0);
      batch.draw(Assets.grassAndDirt, x[7], 0);
      */

   }
}

But everytime I try and run it, it gives me this error:
AL lib: MMDevApiMsgProc: Unexpected message: 0
Exception in thread "LWJGL Application" java.lang.ArrayIndexOutOfBoundsException: 15
   at com.reed.sidescroller.Objects.grass(Objects.java:10)
   at com.reed.sidescroller.MainMenuScreen.draw(MainMenuScreen.java:32)
   at com.reed.sidescroller.MainMenuScreen.render(MainMenuScreen.java:40)
   at com.badlogic.gdx.Game.render(Game.java:46)
   at com.reed.sidescroller.SideScroller.render(SideScroller.java:16)
   at com.badlogic.gdx.backends.lwjgl.LwjglApplication.mainLoop(LwjglApplication.java:202)
   at com.badlogic.gdx.backends.lwjgl.LwjglApplication$1.run(LwjglApplication.java:131)
AL lib: ReleaseALC: 1 device not closed

it doesnt seem too helpful to me but at least it tells me the objects class is the error.
The commented out part of the code works fine, but it is a bit long, and I had thought that a for loop could have replaced all of that, but it is not working:(

Offline Phased
« Reply #1 - Posted 2013-01-12 02:17:47 »

theirs no such array index of "15" in your array, remember, arrays start at 0, and the last index in your array is 14
Offline wreed12345

JGO Knight


Medals: 24
Projects: 2
Exp: 2 years


http://linebylinecoding.blogspot.com/


« Reply #2 - Posted 2013-01-12 02:18:47 »

Sometimes i wonder why im so stupid.... well sorry everyone for this stupid post and thank you for the help

Sometimes a second pair of eyes really does help out

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Offline ReBirth
« Reply #3 - Posted 2013-01-12 03:09:06 »

"... when it shouldn't"

Every single crash/bug is!

Offline Jimmt
« League of Dukes »

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Medals: 128
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Exp: 3 years



« Reply #4 - Posted 2013-01-12 06:34:51 »

Sometimes a second pair of eyes really does help out
Sure, but this is a really basic bug (not even libgdx-related).
The stack trace should have said indexoutofboundsexception which by itself is already very helpful.
Please try to solve your problems instead of having other people solve them for you.
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