working_directory = File.join(File.dirname(__FILE__))
$LOAD_PATH << working_directory unless $LOAD_PATH.include?(working_directory)
Dir[File.join(working_directory, '*.jar')].each do |jar|
  require jar
end

ContactListener = Java::OrgJbox2dCallbacks::ContactListener

def import_class_list(list, string)
  list.each { |d| java_import format(string, d) }
end

common = %w( Vec2 Transform )
common_format = 'org.jbox2d.common.%s'
import_class_list(common, common_format)
shape = %w( PolygonShape CircleShape ChainShape Shape )
shape_format = 'org.jbox2d.collision.shapes.%s'
import_class_list(shape, shape_format)
world = %w( Body BodyDef BodyType World FixtureDef )
world_format = 'org.jbox2d.dynamics.%s'
import_class_list(world, world_format)
joint = %w( Joint JointDef DistanceJointDef RevoluteJoint RevoluteJointDef )
joint_format = 'org.jbox2d.dynamics.joints.%s'
import_class_list(joint, joint_format)

require_relative 'pbox2d/box2d.rb'