Implemented Gnome Barman dialogue

Server/src/main/content/region/kandarin/gnomestronghold/dialogue/GnomeBarmanDialogue.kt

@@ -0,0 +1,110 @@
+package content.region.kandarin.gnomestronghold.dialogue
+
+import core.api.addItem
+import core.api.inInventory
+import core.api.openDialogue
+import core.api.openNpcShop
+import core.api.removeItem
+import core.api.sendMessage
+import core.game.dialogue.ChatAnim
+import core.game.dialogue.DialogueLabeller
+import core.game.dialogue.DialogueOption
+import core.game.dialogue.DialoguePlugin
+import core.game.node.entity.player.Player
+import core.game.node.item.Item
+import core.plugin.Initializable
+import org.rs09.consts.Items
+import org.rs09.consts.NPCs
+
+private const val INGREDIENT_COST = 20
+private const val NOT_ENOUGH_MONEY_MESSAGE = "You do not have enough money to buy that."
+
+/**
+ * Handles the dialogue for the Gnome Barman NPCs in the Tree Gnome Stronghold.
+ * @author Broseki
+ */
+@Initializable
+class GnomeBarmanDialogue(player: Player? = null) : DialoguePlugin(player) {
+    override fun newInstance(player: Player?): DialoguePlugin {
+        return GnomeBarmanDialogue(player)
+    }
+
+    override fun handle(interfaceId: Int, buttonId: Int): Boolean {
+        openDialogue(player, GnomeBarmanDialogueStart(), npc)
+        return false
+    }
+
+    override fun getIds(): IntArray {
+        return intArrayOf(NPCs.BARMAN_849)
+    }
+}
+
+class GnomeBarmanDialogueStart : DialogueLabeller() {
+    override fun addConversation() {
+        npc(ChatAnim.OLD_HAPPY, "Good day to you. What can I get you to drink?")
+        options(
+            DialogueOption("store", "What do you have?", expression = ChatAnim.FRIENDLY, spokenText = "What do you have."),
+            DialogueOption("nothing", "Nothing thanks.", expression = ChatAnim.FRIENDLY),
+            DialogueOption(
+                "ingredients", "Can I buy some ingredients?",
+                spokenText = "I was just wanting to buy a cocktail ingredient actually.",
+                expression = ChatAnim.FRIENDLY
+            ),
+        )
+
+        label("store")
+        npc(ChatAnim.OLD_HAPPY, "Here, take a look at our menu.")
+        exec { player, npc ->
+            openNpcShop(player, npc.id)
+        }
+
+        label("nothing")
+        npc(ChatAnim.OLD_HAPPY, "Okay, take it easy.")
+
+        label("ingredients")
+        npc(ChatAnim.OLD_HAPPY, "Sure thing, what did you want?")
+        options(
+            DialogueOption("lemon", "A lemon.", expression = ChatAnim.FRIENDLY),
+            DialogueOption("orange", "An orange.", expression = ChatAnim.FRIENDLY),
+            DialogueOption("shaker", "A cocktail shaker.", expression = ChatAnim.FRIENDLY),
+            DialogueOption(
+                "buynothing", "Nothing thanks.",
+                spokenText = "Actually nothing thanks.",
+                expression = ChatAnim.FRIENDLY
+            ),
+        )
+
+        label("lemon")
+        npc(ChatAnim.OLD_HAPPY, "$INGREDIENT_COST coins please.")
+        exec { player, _ ->
+            if (removeItem(player, Item(Items.COINS_995, INGREDIENT_COST))) {
+                addItem(player, Items.LEMON_2102)
+            } else {
+                sendMessage(player, NOT_ENOUGH_MONEY_MESSAGE)
+            }
+        }
+
+        label("orange")
+        npc(ChatAnim.OLD_HAPPY, "$INGREDIENT_COST coins please.")
+        exec { player, _ ->
+            if (removeItem(player, Item(Items.COINS_995, INGREDIENT_COST))) {
+                addItem(player, Items.ORANGE_2108)
+            } else {
+                sendMessage(player, NOT_ENOUGH_MONEY_MESSAGE)
+            }
+        }
+
+        label("shaker")
+        npc(ChatAnim.OLD_HAPPY, "$INGREDIENT_COST coins please.")
+        exec { player, _ ->
+            if (removeItem(player, Item(Items.COINS_995, INGREDIENT_COST))) {
+                addItem(player, Items.COCKTAIL_SHAKER_2025)
+            } else {
+                sendMessage(player, NOT_ENOUGH_MONEY_MESSAGE)
+            }
+        }
+
+        label("buynothing")
+        // Just end the conversation here without any further dialogue
+    }
+}