Trying to load JBullet examples in Eclipse!

Game Mechanics
#1

So I placed the jar files in the right directory file, and the natives in the Native Library Location in the Libraries Java Build Path. Everything looks fine and errors until I try to run any of the examples. This is the error I get:

[quote]Exception in thread “main” java.lang.Error: not instrumented
at cz.advel.stack.Stack.alloc(Stack.java:110)
at com.bulletphysics.collision.shapes.StridingMeshInterface.internalProcessAllTriangles(StridingMeshInterface.java:43)
at com.bulletphysics.collision.shapes.StridingMeshInterface.calculateAabbBruteForce(StridingMeshInterface.java:78)
at com.bulletphysics.collision.shapes.BvhTriangleMeshShape.(BvhTriangleMeshShape.java:76)
at com.bulletphysics.collision.shapes.BvhTriangleMeshShape.(BvhTriangleMeshShape.java:63)
at com.bulletphysics.demos.vehicle.VehicleDemo.initPhysics(VehicleDemo.java:236)
at com.bulletphysics.demos.vehicle.VehicleDemo.main(VehicleDemo.java:606)
[/quote]
Do these classes need a main class in order to run or am I missing something here?

I’m stumped because I’ve managed this sort of thing before. Does anyone know if it has to do with a particular version of lwjgl or something in particular, does JBullet need lwjgl. I’m using LWJGL2.

Any help would be much appreciated. Thanks.

#2

https://www3.ntu.edu.sg/home/ehchua/programming/game/BulletPhysics_JBullet.html

Scroll down to this bit:
“You cannot run the program directly, as jStackAlloc need to perform so-called instrumentation, which modifies the byte-code. You can then run the modified bytecodes. Write a ANT build file (build.xml) as follows, which invoke the Instrumentation task on the compiled classes and then run from the instrumented-classes.”

#3

Here’s a version of JBullet that doesn’t use jStackAlloc: Hosted via Host-a.net

I use it in my project… Not sure if there’s any negative consequences, but eh, I haven’t noticed anything out of the ordinary yet.

#4

Hey! Thanks orange and archive. Gonna try this out! Much appreciated for the info. :slight_smile:

#5

[quote]<?xml version="1.0" encoding="UTF-8"?>






[/quote] So I made the build.xml file but it failed and gave me this error

[quote]BUILD FAILED
C:\myproject\build.xml:13: taskdef class cz.advel.stack.instrument.InstrumentationTask cannot be found
using the classloader AntClassLoader[C:\myproject\bin]
[/quote]
then I tried the build.xml that came with jbullet and wasnt suprised it wouldnt work but im not sure why.

[quote]C:\myproject\nbproject\build-impl.xml:793: The following error occurred while executing this line:
C:\myproject\nbproject\build-impl.xml:337: The for must include junit.jar if not in Ant’s own classpath
[/quote]
so at this point im rather confused but im confident in people to lend me a hand and save me from my ubernoob misery. much appreciated.

whats the best way to use the file for you? I tried using it as a library and also extracted the files, but Eclipse wouldnt recognize the class files. Is there something Im missing? Much appreciated

#6

You just include it the same way you include other libraries (Open the Build Path and click add library).

#7

Got it to work! Thanks to yall for the help! much appreciated!