Examples of SpeakerNPC

games.stendhal.server.entity.npc.SpeakerNPC
kipedia.org/wiki/Finite_state_machine In fact, it is a transducer. States are denoted by the enum ConversationStates. Input is the text that the player says to the SpeakerNPC. Output is the text that the SpeakerNPC answers. See examples to understand how it works. RULES: State IDLE is both the start state and the state that will end the conversation between the player and the SpeakerNPC. State ATTENDING is the state where only one player can talk to NPC and where the prior talk doesn't matter. State ANY is a wildcard and is used to jump from any state whenever the trigger is active. There are states that are reserved for special behaviours and quests. Example how it works: First we need to create a message to greet the player and attend it. We add a hi event: add(ConversationStates.IDLE, ConversationPhrases.GREETING_MESSAGES, ConversationStates.ATTENDING, "Welcome, player!", null) Once the NPC is in the IDLE state and hears the word "hi", it will say "Welcome player!" and move to ATTENDING. Now let's add some options when player is in ATTENDING_STATE, like job, offer, buy, sell, etc. add(ConversationStates.ATTENDING, ConversationPhrases.JOB_MESSAGES, ConversationStates.ATTENDING, "I work as a part time example showman", null) add(ConversationStates.ATTENDING_STATE, "offer", ConversationStates.ATTENDING_STATE, "I sell best quality swords", null) Ok, two new events: job and offer, they go from ATTENDING state to ATTENDING state, because after reacting to "job" or "offer", the NPC can directly react to one of these again.
```
 add(ConversationStates.ATTENDING, "buy", ConversationStates.BUY_PRICE_OFFERED, null, new ChatAction() { public void fire(Player player, String text, SpeakerNPC npc) { int i = text.indexOf(" "); String item = text.substring(i + 1); if (item.equals("sword")) { npc.say(item + "costs 10 coins. Do you want to buy?"); } else { npc.say("Sorry, I don't sell " + item + "."); npc.setActualState(ConversationStates.ATTENDING); } } }); 
```
Now the hard part. We listen to "buy", so we need to process the text, and for that we use the ChatAction class, we create a new class that will handle the event. Also see that we move to a new state, BUY_PRICE_OFFERED. The player is then replying to a question, so we only expect two possible replies: yes or no. add(ConversationStates.BUY_PRICE_OFFERED, ConversationPhrases.YES_MESSAGES, ConversationStates.ATTENDING, "Sorry, I changed my mind. I won't sell anything.", null); // See SellerBehaviour.java for a working example. Whatever the reply is, return to ATTENDING state so we can listen to new things. Finally we want to finish the conversation, so whatever state we are, we want to finish a conversation with "Bye!". add(ConversationStates.ANY, ConversationPhrases.GOODBYE_MESSAGES, ConversationStates.IDLE, "Bye!", null); We use the state ANY as a wildcard, so if the input text is "bye" the transition happens, no matter in which state the FSM really is, with the exception of the IDLE state.

Examples of games.stendhal.server.entity.npc.SpeakerNPC

   * Tests for hiAndBye.
   */
  @Test
  public void testHiAndBye() {
    
    final SpeakerNPC npc = getNPC("Erna");
    final Engine en = npc.getEngine();
    
    en.step(player, "hi");
    assertTrue(npc.isTalking());
    assertEquals(
        "Welcome to the Semos bakery! We'll #bake fine bread for anyone who helps bring our #flour delivery from the mill.",
        getReply(npc));
    en.step(player, "bye");
    assertFalse(npc.isTalking());
    assertEquals("Bye.", getReply(npc));
  }

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Examples of games.stendhal.server.entity.npc.SpeakerNPC

  /**
   * Tests for hiAndMakeNoStuff.
   */
  @Test
  public void testHiAndMakeNoStuff() {
    final SpeakerNPC npc = getNPC("Erna");
    final Engine en = npc.getEngine();
    
    en.step(player, "hi");
    assertTrue(npc.isTalking());
    assertEquals(
        "Welcome to the Semos bakery! We'll #bake fine bread for anyone who helps bring our #flour delivery from the mill.",
        getReply(npc));
    en.step(player, "make");
    assertTrue(npc.isTalking());
    assertEquals(
        "I can only bake a loaf of bread if you bring me 2 #'sacks of flour'.",
        getReply(npc));
    en.step(player, "bye");
    assertFalse(npc.isTalking());
    assertEquals("Bye.", getReply(npc));
  }

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Examples of games.stendhal.server.entity.npc.SpeakerNPC

  /**
   * Tests for baking a single bread.
   */
  @Test
  public void testBakeSingleBread() {
    final SpeakerNPC npc = getNPC("Erna");
    final Engine en = npc.getEngine();
    
    en.step(player, "hi");
    assertTrue(npc.isTalking());
    assertEquals(
        "Welcome to the Semos bakery! We'll #bake fine bread for anyone who helps bring our #flour delivery from the mill.",
        getReply(npc));
    final StackableItem flour = new StackableItem("flour", "", "", null);
    flour.setQuantity(2);
    flour.setID(new ID(2, ZONE_NAME));
    player.getSlot("bag").add(flour);
    assertEquals(2, player.getNumberOfEquipped("flour"));


    en.step(player, "make");
    assertTrue(npc.isTalking());
    assertEquals(
        "I need you to fetch me 2 #'sacks of flour' for this job. Do you have it?",
        getReply(npc));
    en.step(player, "yes");
    final String[] questStatus = player.getQuest(QUEST1).split(";");
    final String[] expected = { "1", "bread", "" };
    assertEquals("amount", expected[0], questStatus[0]); 
    assertEquals("item", expected[1], questStatus[1]); 


    assertTrue(npc.isTalking());
    assertEquals(
        "OK, I will bake a loaf of bread for you, but that will take some time. Please come back in 10 minutes.",
        getReply(npc));
    assertEquals(0, player.getNumberOfEquipped("flour"));
    assertEquals(0, player.getNumberOfEquipped("bread"));
    en.step(player, "bye");
    assertFalse(npc.isTalking());
    player.setQuest(QUEST1, "1;;0");


    en.step(player, "hi");
    assertEquals(
        "Welcome back! I'm done with your order. Here you have the loaf of bread.",

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Examples of games.stendhal.server.entity.npc.SpeakerNPC

  /**
   * Tests for baking multiple breads.
   */
  @Test
  public void testBakeMultipleBreads() {
    final SpeakerNPC npc = getNPC("Erna");
    final Engine en = npc.getEngine();
    
    en.step(player, "hi");
    assertTrue(npc.isTalking());
    assertEquals(
        "Welcome to the Semos bakery! We'll #bake fine bread for anyone who helps bring our #flour delivery from the mill.",
        getReply(npc));
    final StackableItem flour = new StackableItem("flour", "", "", null);
    flour.setQuantity(4);
    flour.setID(new ID(2, ZONE_NAME));
    player.getSlot("bag").add(flour);
    assertEquals(4, player.getNumberOfEquipped("flour"));


    en.step(player, "make 2 breads");
    assertTrue(npc.isTalking());
    assertEquals(
        "I need you to fetch me 4 #'sacks of flour' for this job. Do you have it?",
        getReply(npc));
    en.step(player, "yes");
    final String[] questStatus = player.getQuest(QUEST1).split(";");
    final String[] expected = { "2", "bread", "" };
    assertEquals("amount", expected[0], questStatus[0]);
    assertEquals("item", expected[1], questStatus[1]); 


    assertTrue(npc.isTalking());
    assertEquals(
        "OK, I will bake 2 loaves of bread for you, but that will take some time. Please come back in 20 minutes.",
        getReply(npc));
    assertEquals(0, player.getNumberOfEquipped("flour"));
    assertEquals(0, player.getNumberOfEquipped("bread"));
    en.step(player, "bye");
    assertFalse(npc.isTalking());
    player.setQuest(QUEST1, "2;;0");


    en.step(player, "hi");
    assertEquals(
        "Welcome back! I'm done with your order. Here you have 2 loaves of bread.",

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Examples of games.stendhal.server.entity.npc.SpeakerNPC

  /**
   * Tests for baking multiple breads without naming them.
   */
  @Test
  public void testBakeMultipleWithoutName() {
    final SpeakerNPC npc = getNPC("Erna");
    final Engine en = npc.getEngine();
    
    en.step(player, "hi");
    assertTrue(npc.isTalking());
    assertEquals(
        "Welcome to the Semos bakery! We'll #bake fine bread for anyone who helps bring our #flour delivery from the mill.",
        getReply(npc));
    final StackableItem flour = new StackableItem("flour", "", "", null);
    flour.setQuantity(6);
    flour.setID(new ID(2, ZONE_NAME));
    player.getSlot("bag").add(flour);
    assertEquals(6, player.getNumberOfEquipped("flour"));


    en.step(player, "make 3");
    assertTrue(npc.isTalking());
    assertEquals(
        "I need you to fetch me 6 #'sacks of flour' for this job. Do you have it?",
        getReply(npc));
    en.step(player, "yes");
    final String[] questStatus = player.getQuest(QUEST1).split(";");
    final String[] expected = { "3", "bread", "" };
    assertEquals("amount", expected[0], questStatus[0]);
    assertEquals("item", expected[1], questStatus[1]); 


    assertTrue(npc.isTalking());
    assertEquals(
        "OK, I will bake 3 loaves of bread for you, but that will take some time. Please come back in 30 minutes.",
        getReply(npc));
    assertEquals(0, player.getNumberOfEquipped("flour"));
    assertEquals(0, player.getNumberOfEquipped("bread"));
    en.step(player, "bye");
    assertFalse(npc.isTalking());
    player.setQuest(QUEST1, "3;;0");


    en.step(player, "hi");
    assertEquals(
        "Welcome back! I'm done with your order. Here you have 3 loaves of bread.",

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Examples of games.stendhal.server.entity.npc.SpeakerNPC

  /**
   * Tests for borrowing the sugar mill.
   */
  @Test
  public void testBorrowSugarMill() {
    final SpeakerNPC npc = getNPC("Erna");
    final Engine en = npc.getEngine();
    
    en.step(player, "hi");
    assertTrue(npc.isTalking());
    assertEquals(
        "Welcome to the Semos bakery! We'll #bake fine bread for anyone who helps bring our #flour delivery from the mill.",
        getReply(npc));


    en.step(player, "borrow");
    assertTrue(npc.isTalking());
    assertEquals(
        "Oh sorry, I don't lend equipment to people with so little experience as you.",
        getReply(npc));


    // level up
    player.setLevel(10);
    en.step(player, "borrow");
    assertTrue(npc.isTalking());
    assertEquals(
        "You'll have to speak to Leander and ask if you can help with the pizza before I'm allowed to lend you anything.",
        getReply(npc));


    player.setQuest("pizza_delivery", "done");
    en.step(player, "borrow");
    assertTrue(npc.isTalking());
    assertEquals(
        "I lend out #'sugar mill' and #'pestle and mortar'. If you're interested, please say which you want.",
        getReply(npc));


    en.step(player, "sugar mill");
    assertTrue(npc.isTalking());
    assertEquals(
        "Here you are! Don't forget to #return it or you have to pay!",
        getReply(npc));
    final String[] questStatus = player.getQuest(QUEST2).split(";");
    assertEquals("sugar mill", questStatus[0]);


    en.step(player, "bye");
    assertFalse(npc.isTalking());
    player.setQuest(QUEST2, ";");


    assertEquals(1, player.getNumberOfEquipped("sugar mill"));


    en.step(player, "hi");

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Examples of games.stendhal.server.entity.npc.SpeakerNPC

  /**
   * Tests for borrowing sugar.
   */
  @Test
  public void testBorrowSugar() {
    final SpeakerNPC npc = getNPC("Erna");
    final Engine en = npc.getEngine();
    
    en.step(player, "hi");
    assertTrue(npc.isTalking());
    assertEquals(
        "Welcome to the Semos bakery! We'll #bake fine bread for anyone who helps bring our #flour delivery from the mill.",
        getReply(npc));


    en.step(player, "borrow");
    assertTrue(npc.isTalking());
    assertEquals(
        "Oh sorry, I don't lend equipment to people with so little experience as you.",
        getReply(npc));


    // level up
    player.setLevel(10);
    en.step(player, "borrow");
    assertTrue(npc.isTalking());
    assertEquals(
        "You'll have to speak to Leander and ask if you can help with the pizza before I'm allowed to lend you anything.",
        getReply(npc));


    player.setQuest("pizza_delivery", "done");
    en.step(player, "borrow");
    assertTrue(npc.isTalking());
    assertEquals(
        "I lend out #'sugar mill' and #'pestle and mortar'. If you're interested, please say which you want.",
        getReply(npc));


    en.step(player, "sugar");
    assertTrue(npc.isTalking());
    assertEquals(
        "Sorry, I can't lend out sugar, only a #sugar #mill.",
        getReply(npc));


    en.step(player, "bye");
    assertFalse(npc.isTalking());
    player.setQuest(QUEST2, ";");


    assertEquals(0, player.getNumberOfEquipped("sugar mill"));


    en.step(player, "hi");

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Examples of games.stendhal.server.entity.npc.SpeakerNPC

  /**
   * Tests for borrowing pestle and mortar.
   */
  @Test
  public void testBorrowPestleMortar() {
    final SpeakerNPC npc = getNPC("Erna");
    final Engine en = npc.getEngine();
    
    en.step(player, "hi");
    assertTrue(npc.isTalking());
    assertEquals(
        "Welcome to the Semos bakery! We'll #bake fine bread for anyone who helps bring our #flour delivery from the mill.",
        getReply(npc));


    en.step(player, "borrow");
    assertTrue(npc.isTalking());
    assertEquals(
        "Oh sorry, I don't lend equipment to people with so little experience as you.",
        getReply(npc));


    // level up
    player.setLevel(10);
    en.step(player, "borrow");
    assertTrue(npc.isTalking());
    assertEquals(
        "You'll have to speak to Leander and ask if you can help with the pizza before I'm allowed to lend you anything.",
        getReply(npc));


    player.setQuest("pizza_delivery", "done");
    en.step(player, "borrow");
    assertTrue(npc.isTalking());
    assertEquals(
        "I lend out #'sugar mill' and #'pestle and mortar'. If you're interested, please say which you want.",
        getReply(npc));


    en.step(player, "pestle and mortar");
    assertTrue(npc.isTalking());
    assertEquals(
        "Here you are! Don't forget to #return it or you have to pay!",
        getReply(npc));
    final String[] questStatus = player.getQuest(QUEST2).split(";");
    assertEquals("pestle and mortar", questStatus[0]);


    en.step(player, "bye");
    assertFalse(npc.isTalking());
    player.setQuest(QUEST2, ";");


    assertEquals(1, player.getNumberOfEquipped("pestle and mortar"));


    en.step(player, "hi");

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Examples of games.stendhal.server.entity.npc.SpeakerNPC

  /**
   * Tests for borrowing pestle and mortar with additional space.
   */
  @Test
  public void testBorrowPestleAndMortarWithSpace() {
    final SpeakerNPC npc = getNPC("Erna");
    final Engine en = npc.getEngine();
    
    en.step(player, "hi");
    assertTrue(npc.isTalking());
    assertEquals(
        "Welcome to the Semos bakery! We'll #bake fine bread for anyone who helps bring our #flour delivery from the mill.",
        getReply(npc));


    en.step(player, "borrow");
    assertTrue(npc.isTalking());
    assertEquals(
        "Oh sorry, I don't lend equipment to people with so little experience as you.",
        getReply(npc));


    // level up
    player.setLevel(10);
    en.step(player, "borrow");
    assertTrue(npc.isTalking());
    assertEquals(
        "You'll have to speak to Leander and ask if you can help with the pizza before I'm allowed to lend you anything.",
        getReply(npc));


    player.setQuest("pizza_delivery", "done");
    en.step(player, "borrow");
    assertTrue(npc.isTalking());
    assertEquals(
        "I lend out #'sugar mill' and #'pestle and mortar'. If you're interested, please say which you want.",
        getReply(npc));


    en.step(player, "pestle and  mortar");
    assertTrue(npc.isTalking());
    assertEquals(
        "Here you are! Don't forget to #return it or you have to pay!",
        getReply(npc));
    final String[] questStatus = player.getQuest(QUEST2).split(";");
    assertEquals("pestle and mortar", questStatus[0]);


    en.step(player, "bye");
    assertFalse(npc.isTalking());
    player.setQuest(QUEST2, ";");


    assertEquals(1, player.getNumberOfEquipped("pestle and mortar"));


    en.step(player, "hi");

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Examples of games.stendhal.server.entity.npc.SpeakerNPC

  /**
   * Tests for hiAndBye.
   */
  @Test
  public void testHiAndBye() {
    final SpeakerNPC npc = getNPC("Starkad");
    final Engine en = npc.getEngine();


    assertTrue(en.step(player, "hi"));
    assertEquals("Greetings! How may I help you?", getReply(npc));


    assertTrue(en.step(player, "bye"));

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