Package org.jbox2d.dynamics.joints

Examples of org.jbox2d.dynamics.joints.GearJointDef


        def.maxForce = joint.getMaxForce();
        def.target.set(pbToVec(joint.getTarget()));
        break;
      }
      case GEAR: {
        GearJointDef def = new GearJointDef();
        jd = def;
        if (!jointMap.containsKey(joint.getJoint1())) {
          throw new IllegalArgumentException("Index " + joint.getJoint1()
              + " is not present in the joint map.");
        }
        def.joint1 = jointMap.get(joint.getJoint1());
        if (!jointMap.containsKey(joint.getJoint2())) {
          throw new IllegalArgumentException("Index " + joint.getJoint2()
              + " is not present in the joint map.");
        }
        def.joint2 = jointMap.get(joint.getJoint2());
        def.ratio = joint.getRatio();
        break;
      }
      case WHEEL: {
        WheelJointDef def = new WheelJointDef();
        jd = def;
        def.localAnchorA.set(pbToVec(joint.getLocalAnchorA()));
        def.localAnchorB.set(pbToVec(joint.getLocalAnchorB()));
        def.localAxisA.set(pbToVec(joint.getLocalAxisA()));
        def.enableMotor = joint.getEnableMotor();
        def.maxMotorTorque = joint.getMaxMotorTorque();
        def.motorSpeed = joint.getMotorSpeed();
        def.frequencyHz = joint.getFrequency();
        def.dampingRatio = joint.getDampingRatio();
        break;
      }
      case WELD: {
        WeldJointDef def = new WeldJointDef();
        jd = def;
        def.localAnchorA.set(pbToVec(joint.getLocalAnchorA()));
        def.localAnchorB.set(pbToVec(joint.getLocalAnchorB()));
        def.referenceAngle = joint.getRefAngle();
        def.frequencyHz = joint.getFrequency();
        def.dampingRatio = joint.getDampingRatio();
        break;
      }
      case FRICTION: {
        FrictionJointDef def = new FrictionJointDef();
        jd = def;
        def.localAnchorA.set(pbToVec(joint.getLocalAnchorA()));
        def.localAnchorB.set(pbToVec(joint.getLocalAnchorB()));
        def.maxForce = joint.getMaxForce();
        def.maxTorque = joint.getMaxTorque();
        break;
      }
      case ROPE: {
        RopeJointDef def = new RopeJointDef();
        jd = def;
        def.localAnchorA.set(pbToVec(joint.getLocalAnchorA()));
        def.localAnchorB.set(pbToVec(joint.getLocalAnchorB()));
        def.maxLength = joint.getMaxLength();
        return null;
      }
      case CONSTANT_VOLUME: {
        ConstantVolumeJointDef def = new ConstantVolumeJointDef();
        jd = def;
        def.dampingRatio = joint.getDampingRatio();
        def.frequencyHz = joint.getFrequency();
        if (joint.getBodiesCount() != joint.getJointsCount()) {
          throw new IllegalArgumentException(
              "Constant volume joint must have bodies and joints defined");
        }
        for (int i = 0; i < joint.getBodiesCount(); i++) {
          int body = joint.getBodies(i);
          if (!argBodyMap.containsKey(body)) {
            throw new IllegalArgumentException("Index " + body + " is not present in the body map");
          }
          int jointIndex = joint.getJoints(i);
          if (!jointMap.containsKey(jointIndex)) {
            throw new IllegalArgumentException("Index " + jointIndex
                + " is not present in the joint map");
          }
          Joint djoint = jointMap.get(jointIndex);
          if (!(djoint instanceof DistanceJoint)) {
            throw new IllegalArgumentException(
                "Joints for constant volume joint must be distance joints");
          }
          def.addBodyAndJoint(argBodyMap.get(body), (DistanceJoint) djoint);
        }
        break;
      }
      case LINE: {
        UnsupportedObjectException e =
View Full Code Here


      RevoluteJointDef jd2 = new RevoluteJointDef();
      jd2.initialize(body2, body3, bd3.position);
      Joint joint2 = m_world.createJoint(jd2);

      GearJointDef jd4 = new GearJointDef();
      jd4.bodyA = body1;
      jd4.bodyB = body3;
      jd4.joint1 = joint1;
      jd4.joint2 = joint2;
      jd4.ratio = circle2.m_radius / circle1.m_radius;
      m_world.createJoint(jd4);
    }

    {
      CircleShape circle1 = new CircleShape();
      circle1.m_radius = 1.0f;

      CircleShape circle2 = new CircleShape();
      circle2.m_radius = 2.0f;

      PolygonShape box = new PolygonShape();
      box.setAsBox(0.5f, 5.0f);

      BodyDef bd1 = new BodyDef();
      bd1.type = BodyType.DYNAMIC;
      bd1.position.set(-3.0f, 12.0f);
      Body body1 = m_world.createBody(bd1);
      body1.createFixture(circle1, 5.0f);

      RevoluteJointDef jd1 = new RevoluteJointDef();
      jd1.bodyA = ground;
      jd1.bodyB = body1;
      ground.getLocalPointToOut(bd1.position, jd1.localAnchorA);
      body1.getLocalPointToOut(bd1.position, jd1.localAnchorB);
      jd1.referenceAngle = body1.getAngle() - ground.getAngle();
      m_joint1 = (RevoluteJoint) m_world.createJoint(jd1);

      BodyDef bd2 = new BodyDef();
      bd2.type = BodyType.DYNAMIC;
      bd2.position.set(0.0f, 12.0f);
      Body body2 = m_world.createBody(bd2);
      body2.createFixture(circle2, 5.0f);

      RevoluteJointDef jd2 = new RevoluteJointDef();
      jd2.initialize(ground, body2, bd2.position);
      m_joint2 = (RevoluteJoint) m_world.createJoint(jd2);

      BodyDef bd3 = new BodyDef();
      bd3.type = BodyType.DYNAMIC;
      bd3.position.set(2.5f, 12.0f);
      Body body3 = m_world.createBody(bd3);
      body3.createFixture(box, 5.0f);

      PrismaticJointDef jd3 = new PrismaticJointDef();
      jd3.initialize(ground, body3, bd3.position, new Vec2(0.0f, 1.0f));
      jd3.lowerTranslation = -5.0f;
      jd3.upperTranslation = 5.0f;
      jd3.enableLimit = true;

      m_joint3 = (PrismaticJoint) m_world.createJoint(jd3);

      GearJointDef jd4 = new GearJointDef();
      jd4.bodyA = body1;
      jd4.bodyB = body2;
      jd4.joint1 = m_joint1;
      jd4.joint2 = m_joint2;
      jd4.ratio = circle2.m_radius / circle1.m_radius;
      m_joint4 = (GearJoint) m_world.createJoint(jd4);

      GearJointDef jd5 = new GearJointDef();
      jd5.bodyA = body2;
      jd5.bodyB = body3;
      jd5.joint1 = m_joint2;
      jd5.joint2 = m_joint3;
      jd5.ratio = 1f / circle2.m_radius;
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Related Classes of org.jbox2d.dynamics.joints.GearJointDef

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