ChatGPT

build.gradle

@@ -1,9 +1,13 @@
 plugins {
     id 'java'
+    id 'com.github.johnrengelman.shadow' version '6.0.0'
 }
 
 group = 'codes.mii'
 version = '1.0-SNAPSHOT'
+compileJava.options.encoding = 'UTF-8'
+compileTestJava.options.encoding = 'UTF-8'
+javadoc.options.encoding = 'UTF-8'
 
 repositories {
     mavenCentral()
@@ -19,6 +23,8 @@ repositories {
 
 dependencies {
     compileOnly "org.spigotmc:spigot-api:1.19.3-R0.1-SNAPSHOT"
+    implementation 'com.theokanning.openai-gpt3-java:service:0.11.0'
+    implementation 'com.google.code.gson:gson:2.10.1'
 }
 
 def targetJavaVersion = 17
@@ -45,3 +51,8 @@ processResources {
         expand props
     }
 }
+
+shadowJar {
+    project.configurations.implementation.canBeResolved = true
+    configurations = [project.configurations.implementation]
+}

src/main/java/codes/mii/chatgptbot/ChatGPT.java

@@ -0,0 +1,28 @@
+package codes.mii.chatgptbot;
+
+import com.theokanning.openai.completion.chat.ChatCompletionRequest;
+import com.theokanning.openai.completion.chat.ChatMessage;
+import com.theokanning.openai.service.OpenAiService;
+import com.google.gson.Gson;
+import org.bukkit.configuration.file.FileConfiguration;
+
+import java.util.List;
+
+public class ChatGPT {
+    public static ChatGPTResponse chat(ChatGPTInput input) {
+        FileConfiguration config = ChatGPTBot.getPlugin(ChatGPTBot.class).getConfig();
+
+        Gson gson = new Gson();
+        String message = config.getString("base_input") + "\n" + gson.toJson(input);
+
+        OpenAiService service = new OpenAiService(config.getString("openai_api_key"));
+        ChatCompletionRequest chatCompletionRequest = ChatCompletionRequest.builder()
+                .model(config.getString("model"))
+                .messages(List.of(new ChatMessage("user", message)))
+                .build();
+
+        String response = service.createChatCompletion(chatCompletionRequest).getChoices().get(0).getMessage().getContent();
+
+        return gson.fromJson(response, ChatGPTResponse.class);
+    }
+}

src/main/java/codes/mii/chatgptbot/ChatGPTBot.java

@@ -3,15 +3,9 @@ package codes.mii.chatgptbot;
 import org.bukkit.plugin.java.JavaPlugin;
 
 public final class ChatGPTBot extends JavaPlugin {
-
     @Override
     public void onEnable() {
-        // Plugin startup logic
-
-    }
-
-    @Override
-    public void onDisable() {
-        // Plugin shutdown logic
+        saveDefaultConfig();
+        getServer().getPluginManager().registerEvents(new OnAsyncPlayerChatEvent(), this);
     }
 }

src/main/java/codes/mii/chatgptbot/ChatGPTInput.java

@@ -0,0 +1,15 @@
+package codes.mii.chatgptbot;
+
+import java.util.List;
+
+public class ChatGPTInput {
+    public String username;
+    public String message;
+    public List<Double> position;
+
+    public ChatGPTInput(String username, String message, List<Double> position) {
+        this.username = username;
+        this.message = message;
+        this.position = position;
+    }
+}

src/main/java/codes/mii/chatgptbot/ChatGPTResponse.java

@@ -0,0 +1,15 @@
+package codes.mii.chatgptbot;
+
+import java.util.List;
+
+public class ChatGPTResponse {
+    public String response_message;
+    public String to;
+    public List<String> commands;
+
+    public ChatGPTResponse(String response_message, String to, List<String> commands) {
+        this.response_message = response_message;
+        this.to = to;
+        this.commands = commands;
+    }
+}

src/main/java/codes/mii/chatgptbot/OnAsyncPlayerChatEvent.java

@@ -0,0 +1,61 @@
+package codes.mii.chatgptbot;
+
+import org.bukkit.Location;
+import org.bukkit.configuration.file.FileConfiguration;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Listener;
+import org.bukkit.event.player.AsyncPlayerChatEvent;
+import org.bukkit.scheduler.BukkitRunnable;
+
+import java.util.List;
+import java.util.Objects;
+
+import static org.bukkit.Bukkit.getServer;
+
+public class OnAsyncPlayerChatEvent implements Listener {
+    @EventHandler
+    public void onAsyncPlayerChatEvent(AsyncPlayerChatEvent e) {
+        FileConfiguration config = ChatGPTBot.getPlugin(ChatGPTBot.class).getConfig();
+
+        // check prefix
+        String prefix = config.getString("chat_prefix");
+        if (!e.getMessage().startsWith(Objects.requireNonNull(prefix))) return;
+
+        String message = e.getMessage().replaceFirst(prefix, "");
+        String username = e.getPlayer().getName();
+        Location location = e.getPlayer().getLocation();
+        List<Double> position = List.of(location.getX(), location.getY(), location.getZ());
+
+        BukkitRunnable runnable = new BukkitRunnable() {
+            @Override
+            public void run() {
+                // generate response
+                ChatGPTInput request = new ChatGPTInput(username, message, position);
+                ChatGPTResponse response = ChatGPT.chat(request);
+
+                // format
+                String response_message = Objects.requireNonNull(config.getString("response_format"))
+                        .replace("%TO%", response.to)
+                        .replace("%MESSAGE%", response.response_message);
+                getServer().broadcastMessage(response_message);
+
+                // dispatch commands
+                getServer().getScheduler().runTask(ChatGPTBot.getPlugin(ChatGPTBot.class), () -> {
+                    response.commands.forEach(raw_command -> {
+                        String command = raw_command.replaceFirst("/", "");
+                        getServer().getLogger().info("ChatGPT: /" + command);
+
+                        if (config.getBoolean("dispatch_command_as_player")) {
+                            getServer().dispatchCommand(e.getPlayer(), command);
+                        } else {
+                            getServer().dispatchCommand(ChatGPTBot.getPlugin(ChatGPTBot.class).getServer().getConsoleSender(), command);
+                        }
+                    });
+                });
+            }
+        };
+
+        Thread chatgptThread = new Thread(runnable);
+        chatgptThread.start();
+    }
+}

src/main/resources/config.yml

@@ -0,0 +1,16 @@
+openai_api_key: "YOUR OPENAI API KEY"
+model: "gpt-3.5-turbo"
+response_format: "<ChatGPT> %MESSAGE%"
+chat_prefix: "chatgpt "
+dispatch_command_as_player: true
+
+base_input: |
+  あなたはMinecraftサーバー内で全権限を持っています。プレイヤーの指示に従ってください。
+
+  入力
+  {"username": 名,"message": メッセージ,"position": [x, y, z]}
+
+  出力
+  {"response_message": 返信,"to": 相手の名前,"commands": [Minecraftコマンドをこの配列へ記述。]}
+
+  会話がこれから始まります。