env.removeAgent(1);
env.removeAgent(2);
env.addAgent(new Phys3Agent(0, env, "Agent0", 10, params), new Vector2D(0, -5), 180);
env.addAgent(new Phys3JetAgent(1, env, "Agent1", 10, params), new Vector2D(-3, 1), 180);
env.addAgent(new Phys3JetAgent(2, env, "Agent2", 10, params), new Vector2D(3, 1), 180);
j1 = new FixedJoint(
env.getAgent(0),
env.getAgent(1));
j2 = new FixedJoint(
env.getAgent(0),
env.getAgent(2));
env.add(j1);
env.add(j2);