feat: connection between server and game

5 files changed, 115 insertions, 1 deletions

diff --git a/core/build.gradle b/core/build.gradle
index bb73187..e142af4 100644
--- a/core/build.gradle
+++ b/core/build.gradle
@@ -4,9 +4,10 @@ eclipse.project.name = appName + '-core'
 dependencies {
   api "com.badlogicgames.gdx:gdx:$gdxVersion"
   api "com.github.mgsx-dev.gdx-gltf:gltf:$gdxGltfVersion"
+  api "org.java-websocket:Java-WebSocket:$javaWebsocketVersion"
   api project(':shared')
 
-  if(enableGraalNative == 'true') {
+  if (enableGraalNative == 'true') {
     implementation "io.github.berstanio:gdx-svmhelper-annotations:$graalHelperVersion"
   }
 }
diff --git a/core/src/main/java/kz/ilotterytea/frogartha/FrogarthaConstants.java b/core/src/main/java/kz/ilotterytea/frogartha/FrogarthaConstants.java
new file mode 100644
index 0000000..f80948a
--- /dev/null
+++ b/core/src/main/java/kz/ilotterytea/frogartha/FrogarthaConstants.java
@@ -0,0 +1,7 @@
+package kz.ilotterytea.frogartha;
+
+public class FrogarthaConstants {
+    public static class URLS {
+        public static String SESSION_WSS = "ws://localhost:20015";
+    }
+}
diff --git a/core/src/main/java/kz/ilotterytea/frogartha/FrogarthaGame.java b/core/src/main/java/kz/ilotterytea/frogartha/FrogarthaGame.java
index 149dcc7..ea227ec 100644
--- a/core/src/main/java/kz/ilotterytea/frogartha/FrogarthaGame.java
+++ b/core/src/main/java/kz/ilotterytea/frogartha/FrogarthaGame.java
@@ -2,6 +2,7 @@ package kz.ilotterytea.frogartha;
 
 import com.badlogic.gdx.Game;
 import kz.ilotterytea.frogartha.screens.GameScreen;
+import kz.ilotterytea.frogartha.sessions.SessionClient;
 
 /**
  * {@link com.badlogic.gdx.ApplicationListener} implementation shared by all platforms.
@@ -9,8 +10,13 @@ import kz.ilotterytea.frogartha.screens.GameScreen;
 public class FrogarthaGame extends Game {
     private static FrogarthaGame instance;
 
+    private SessionClient sessionClient;
+
     @Override
     public void create() {
+        sessionClient = new SessionClient();
+        sessionClient.connect();
+
         setScreen(new GameScreen());
     }
 
@@ -18,4 +24,8 @@ public class FrogarthaGame extends Game {
         if (instance == null) instance = new FrogarthaGame();
         return instance;
     }
+
+    public SessionClient getSessionClient() {
+        return sessionClient;
+    }
 }
diff --git a/core/src/main/java/kz/ilotterytea/frogartha/sessions/SessionClient.java b/core/src/main/java/kz/ilotterytea/frogartha/sessions/SessionClient.java
new file mode 100644
index 0000000..c775fdf
--- /dev/null
+++ b/core/src/main/java/kz/ilotterytea/frogartha/sessions/SessionClient.java
@@ -0,0 +1,81 @@
+package kz.ilotterytea.frogartha.sessions;
+
+import kz.ilotterytea.frogartha.FrogarthaConstants;
+import kz.ilotterytea.frogartha.FrogarthaGame;
+import kz.ilotterytea.frogartha.domain.Acknowledge;
+import kz.ilotterytea.frogartha.domain.Identity;
+import kz.ilotterytea.frogartha.exceptions.PlayerKickException;
+import org.java_websocket.client.WebSocketClient;
+import org.java_websocket.handshake.ServerHandshake;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.ObjectInputStream;
+import java.io.ObjectOutputStream;
+import java.net.URI;
+import java.nio.ByteBuffer;
+
+public class SessionClient extends WebSocketClient {
+    private final Logger log;
+    private final FrogarthaGame game;
+
+    public SessionClient() {
+        super(URI.create(FrogarthaConstants.URLS.SESSION_WSS));
+        this.log = LoggerFactory.getLogger(SessionClient.class);
+        this.game = FrogarthaGame.getInstance();
+    }
+
+    @Override
+    public void onOpen(ServerHandshake handshakedata) {
+        log.info("Connected");
+        updateIdentity();
+    }
+
+    @Override
+    public void onMessage(String message) {
+    }
+
+    @Override
+    public void onMessage(ByteBuffer bytes) {
+        try {
+            // Deserialize the object
+            ByteArrayInputStream bais = new ByteArrayInputStream(bytes.array());
+            ObjectInputStream ois = new ObjectInputStream(bais);
+            Object obj = ois.readObject();
+
+            if (obj instanceof Acknowledge) SessionHandlers.handleAcknowledge((Acknowledge) obj);
+            else if (obj instanceof PlayerKickException) throw (PlayerKickException) obj;
+        } catch (PlayerKickException e) {
+            log.info("Kicked out: {}", e.getMessage());
+        } catch (Exception e) {
+            log.error("An exception was thrown while processing message", e);
+        }
+    }
+
+    @Override
+    public void onClose(int code, String reason, boolean remote) {
+        log.info("Connection closed! Reason: {} {}", code, reason);
+    }
+
+    @Override
+    public void onError(Exception ex) {
+        log.error("Failed to connect", ex);
+    }
+
+    public void send(Object object) {
+        try {
+            ByteArrayOutputStream baos = new ByteArrayOutputStream();
+            ObjectOutputStream oos = new ObjectOutputStream(baos);
+            oos.writeObject(object);
+            send(baos.toByteArray());
+        } catch (Exception e) {
+            log.error("Failed to serialize and send an object", e);
+        }
+    }
+
+    public void updateIdentity() {
+        send(new Identity("Playerxd"));
+    }
+}
diff --git a/core/src/main/java/kz/ilotterytea/frogartha/sessions/SessionHandlers.java b/core/src/main/java/kz/ilotterytea/frogartha/sessions/SessionHandlers.java
new file mode 100644
index 0000000..8c7487b
--- /dev/null
+++ b/core/src/main/java/kz/ilotterytea/frogartha/sessions/SessionHandlers.java
@@ -0,0 +1,15 @@
+package kz.ilotterytea.frogartha.sessions;
+
+import kz.ilotterytea.frogartha.FrogarthaGame;
+import kz.ilotterytea.frogartha.domain.Acknowledge;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class SessionHandlers {
+    private static final Logger log = LoggerFactory.getLogger(SessionHandlers.class);
+    private static final SessionClient client = FrogarthaGame.getInstance().getSessionClient();
+
+    public static void handleAcknowledge(Acknowledge acknowledge) {
+        log.info("The server was acknowledged: {}", acknowledge);
+    }
+}