How to use

enableLimit

method

in

org.jbox2d.dynamics.joints.RevoluteJoint

/** Enable/disable the joint limit. */
public void enableLimit (boolean flag) {
  joint.enableLimit(flag);
}

@Override
public void keyPressed(char argKeyChar, int argKeyCode) {
 switch (argKeyChar) {
  case 'l':
   m_joint.enableLimit(!m_joint.isLimitEnabled());
   break;
  case 'm':
   m_joint.enableMotor(!m_joint.isMotorEnabled());
   break;
  case 'a':
   m_joint.setMotorSpeed(1.0f * MathUtils.PI);
   isLeft = true;
   break;
  case 'd':
   m_joint.setMotorSpeed(-1.0f * MathUtils.PI);
   isLeft = false;
   break;
 }
}

@Override
public void keyPressed(char argKeyChar, int argKeyCode) {
 switch (argKeyChar) {
  case 'l':
   m_joint.enableLimit(!m_joint.isLimitEnabled());
   break;
  case 'm':
   m_joint.enableMotor(!m_joint.isMotorEnabled());
   break;
  case 'a':
   m_joint.setMotorSpeed(1.0f * MathUtils.PI);
   isLeft = true;
   break;
  case 'd':
   m_joint.setMotorSpeed(-1.0f * MathUtils.PI);
   isLeft = false;
   break;
 }
}