How to make a box2d Body object collidable with the other Body - libgdx

Question

How to make a com.badlogic.gdx.physics.box2d.Body object collidable with the other Body in Scene2d(libgdx) while working with the Box2d extension, when both the body types are Dynamic.?

Answer 1

if I understand correctly, your question can this helps
where to create the Body2, add this example in your code:
.//
YourBody2 = YourWorld.createBody(bd);
YourBody2.createFixture(fixDef).setUserData("YourBody2");
where to create the Body1, add this example in your code:
.//
YourBody1 = YourWorld.createBody(bd);
YourBody1.createFixture(fixDef).setUserData("YourBody1");
Now you have to use a contactlistener, this is an example,
private class CrearContactListener implements ContactListener {
public CrearContactListener(){
}
#Override
public void preSolve(Contact contact, Manifold oldManifold) {
// TODO Auto-generated method stub
}
#Override
public void postSolve(Contact contact, ContactImpulse impulse) {
// TODO Auto-generated method stub
}
#Override
public void endContact(Contact contact) {
// TODO Auto-generated method stub
}
#Override
public void beginContact(Contact contact) {
// TODO Auto-generated method stub
Fixture fixtureA = contact.getFixtureA();
Fixture fixtureB = contact.getFixtureB();
if(fixtureA.getUserData() != null && fixtureA.getUserData().equals("YourBody1")
&& fixtureB.getUserData() != null && fixtureB.getUserData().equals("YourBody2")){
Gdx.app.log("Contact","1");
}
if(fixtureB.getUserData() != null && fixtureB.getUserData().equals("YourBody1")
&& fixtureA.getUserData() != null && fixtureA.getUserData().equals("YourBody2")){
Gdx.app.log("Contact","2");
}
}
}
where to create the World, add this example in your code:
.//
YourWorld = new World(..., ....);
YourWorld.setContactListener(new CrearContactListener());
you can look http://box2d.org/manual.pdf, and read about preSolve and more ect