npc.setPosition(x, y);
sandbox.add(npc);
// Create Dialog
npc.behave("greet", "Hi, how can i #help you?");
npc.behave("help",
"Perhaps you would like a free power #upgrade and maybe a #random destination?");
npc.addGoodbye();
npc.add(ConversationStates.ATTENDING, "upgrade", null,
ConversationStates.ATTENDING, null, new UpgradeAction());
npc.add(ConversationStates.ATTENDING, "random", null,