[英]Libgdx Box2d Java Crash - jniCreateBody
从现在开始我一直在玩Libgdx,但是第一次遇到这个问题。
我的问题:当我尝试创建主体时,Java环境崩溃。 错误日志:
Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)
j com.badlogic.gdx.physics.box2d.World.jniCreateBody(JIFFFFFFFFZZZZZF)J+0
j com.badlogic.gdx.physics.box2d.World.createBody(Lcom/badlogic/gdx/physics/box2d/BodyDef;)Lcom/badlogic/gdx/physics/box2d/Body;+80
j xxx.xx.box2dTest.Enteties.SmallBee.init(FF)V+60
j xxx.xx.box2dTest.Enteties.SmallBee.<init>(Lcom/badlogic/gdx/physics/box2d/World;Lcom/badlogic/gdx/graphics/OrthographicCamera;)V+112
J 1268 C1 xxx.xx.box2dTest.Organization.Ingame.Level.BossOne.BossOneWorld.spawnSmallBee()V (48 bytes) @ 0x000000000323e174 [0x000000000323dec0+0x2b4]
j xxx.xx.box2dTest.Organization.Ingame.Level.BossOne.BossOne.extraStuff()V+223
J 1176 C1 xxx.xx.box2dTest.Organization.Ingame.Level.MotherLevel.render(F)V (269 bytes) @ 0x00000000031e1a0c [0x00000000031e0460+0x15ac]
J 1175 C1 xxx.xx.box2dTest.Organization.Ingame.Level.BossOne.BossOne.render(F)V (499 bytes) @ 0x00000000031d994c [0x00000000031d98c0+0x8c]
J 1144 C1xxx.xx.box2dTest.Box2DGame.render()V (5 bytes) @ 0x00000000031cb744 [0x00000000031cb520+0x224]
j com.badlogic.gdx.backends.lwjgl.LwjglApplication.mainLoop()V+684
j com.badlogic.gdx.backends.lwjgl.LwjglApplication$1.run()V+27
v ~StubRoutines::call_stub
我的工作:我时不时地创建一个身体。 在大多数情况下,一切正常,但仍然会崩溃。.第一次创建直到现在一直没有失败。
public void spawnSmallBee(){
if(TimeUtils.millis() - smallBeeTimer > 0){
new SmallBee(getWorld(), getCamera());
smallBeeTimer = TimeUtils.millis() + MathUtils.random(2000, 3000);
}
}
该代码段是我创建对象的地方,它将创建主体
public SmallBee(World world, OrthographicCamera camera) {
this.world = world;
this.camera = camera;
MOVING_SPEED_Y= MathUtils.random(-3, 3);
sprite = new Sprite(MyAssets.SMALL_BEE);
sprite.setSize(WIDTH * 2, HEIGHT * 2);
sprite.setOriginCenter();
myEntity = new MyEntity("Bee", sprite);
myEntity.setObject(this);
float posx = camera.position.x - camera.viewportWidth / 2 - 2;
float posy = MathUtils.random(1, 7);
BodyDef platformDef = new BodyDef();
platformDef.type = BodyDef.BodyType.KinematicBody;
platformDef.position.set(posx, posy);
body = world.createBody(platformDef);
PolygonShape platformBox = new PolygonShape();
platformBox.setAsBox(WIDTH, HEIGHT);
body.createFixture(platformBox, 0.0f);
body.setLinearVelocity(new Vector2(MOVING_SPEED_X, MOVING_SPEED_Y));
myEntity.getSprite().setPosition(body.getPosition().x - WIDTH, body.getPosition().y - HEIGHT);
body.setUserData(myEntity);
// Remember to dispose of any shapes after you're done with them!
// BodyDef and FixtureDef don't need disposing, but shapes do.
platformBox.dispose(); }
此代码段是对象的创建
例如,我得到几乎相同的对象,不会崩溃
创建是蜜蜂创建之前的一行
public void spawnArrowShooter() {
if(TimeUtils.millis() - arrowShooterTimer > 0){
new ArrowShooter(getWorld(), MathUtils.random(200 - getCamera().viewportWidth / 2 + 2, 200 + getCamera().viewportWidth / 2 - 2), 3, getPlayer(), getCamera(), bossWasp);
arrowShooterTimer = TimeUtils.millis() + MathUtils.random(10000, 15000);
}
}
发起:
public ArrowShooter(World world, float x, float y, Player player, OrthographicCamera camera, BossWasp bossWasp) {
this.camera = camera;
this.bossWasp = bossWasp;
//PLATTFORM
this.world = world;
this.player = player;
sprite = new Sprite(MyAssets.ARROW);
sprite.setSize(WIDTH * 2, HEIGHT * 2);
myEntity = new MyEntity("Arrow", sprite);
myEntity.setObject(this);
init(x, y);
}
public void init(float x, float y){
BodyDef platformDef = new BodyDef();
// We set our body to dynamic, for something like ground which doesn't move we would set it to StaticBody
platformDef.type = BodyDef.BodyType.DynamicBody;
platformDef.position.set(x, y);
body = world.createBody(platformDef);
PolygonShape platformBox = new PolygonShape();
platformBox.setAsBox(WIDTH, HEIGHT);
Fixture fixture = body.createFixture(platformBox, 0.0f);
myEntity.getSprite().setPosition(body.getPosition().x - WIDTH, body.getPosition().y - HEIGHT);
body.setUserData(myEntity);
// Remember to dispose of any shapes after you're done with them!
// BodyDef and FixtureDef don't need disposing, but shapes do.
platformBox.dispose();
disappearTime = TimeUtils.millis() + 4000;
}
我无法解决问题。
if(world.isLocked()){
return;
}
也没有帮助。
不会100%在另一个对象上创建主体。
我将尝试进一步调查问题,并提供我可以收集的任何新信息。
请尝试帮助我!
我意识到,我可以在几秒钟内产生数百万个Bees,而不会出现问题,所以我每秒创建约10个。 没有崩溃,直到箭头击中Boss并被销毁-游戏立即崩溃。
我之前看过一些损坏的车身改装,但错过了一行。
问题是:我已经设定了从被毁尸体的速度!
到现在为止,不再有崩溃发生。
正如我在另一个论坛上读到的:
“破坏尸体时,请执行:body = null这将帮助您发现故障,如果没有,您可能会遇到一些难以理解的错误”
希望您能从中获得帮助。
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