feat: Some more multiplayer stuff

Hello miss Meitnerova... If you are not Meitnerova but some random
person stalking my projects go get a life.

Anyways have a great time reading this awful code :)

server/src/main/java/cz/jzitnik/server/context/GlobalContext.java

@@ -2,23 +2,52 @@ package cz.jzitnik.server.context;
 
 import cz.jzitnik.server.game.Client;
 import cz.jzitnik.server.events.EventManager;
-import cz.jzitnik.server.socket.SocketSession;
+import cz.jzitnik.server.game.Game;
 import jakarta.websocket.Session;
 import lombok.Getter;
 import lombok.Setter;
 
+import java.io.IOException;
+import java.io.InputStream;
 import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Properties;
+import java.util.Set;
 
 public class GlobalContext {
     @Getter
     private final HashMap<Session, Client> sessions = new HashMap<>();
 
+    @Getter
+    private final Set<Game> games = new HashSet<>();
+
     @Getter
     @Setter
     private EventManager eventManager;
 
-    public void registerClient(Session session) {
-        Client client = new Client(new SocketSession(session));
-        sessions.put(session, client);
+    @Getter
+    private final Properties properties;
+
+    public void registerClient(Client client) {
+        sessions.put(client.getSession().getSession(), client);
+    }
+
+    public GlobalContext() {
+        Properties props = new Properties();
+
+        try (InputStream input = GlobalContext.class
+                .getClassLoader()
+                .getResourceAsStream("config.properties")) {
+
+            if (input == null) {
+                throw new RuntimeException("config.properties not found");
+            }
+
+            props.load(input);
+
+            this.properties = props;
+        } catch (IOException e) {
+            throw new RuntimeException(e);
+        }
     }
 }

server/src/main/java/cz/jzitnik/server/events/handlers/CreateGameHandler.java

@@ -1,5 +1,6 @@
 package cz.jzitnik.server.events.handlers;
 
+import cz.jzitnik.common.Config;
 import cz.jzitnik.common.models.player.PlayerCreation;
 import cz.jzitnik.common.socket.messages.game.creation.CreateGame;
 import cz.jzitnik.common.socket.messages.game.creation.CreateGameResponse;
@@ -7,11 +8,17 @@ import cz.jzitnik.server.annotations.EventHandler;
 import cz.jzitnik.server.context.GlobalContext;
 import cz.jzitnik.server.events.AbstractEventHandler;
 import cz.jzitnik.server.game.Client;
+import cz.jzitnik.server.game.Game;
+import cz.jzitnik.server.game.Player;
+import cz.jzitnik.server.utils.PasswordGenerator;
 import lombok.RequiredArgsConstructor;
 import tools.jackson.databind.ObjectMapper;
 import tools.jackson.databind.ObjectReader;
 import tools.jackson.dataformat.yaml.YAMLFactory;
 
+import java.util.ArrayList;
+import java.util.List;
+
 @RequiredArgsConstructor
 @EventHandler(CreateGame.class)
 public class CreateGameHandler extends AbstractEventHandler<CreateGame> {
@@ -20,13 +27,24 @@ public class CreateGameHandler extends AbstractEventHandler<CreateGame> {
     @Override
     public void handle(CreateGame event, Client client) {
         ObjectMapper objectMapper = new ObjectMapper(new YAMLFactory());
-        String pass = "nevim"; // TODO: Generate
+        String pass = PasswordGenerator.generatePassword(Config.WORLD_PASSWORD_LENGTH); // TODO: Generate
+        int id = 0; // Owners id is always 0
 
         ObjectReader playerReader = objectMapper.readerFor(PlayerCreation.class);
         PlayerCreation player = playerReader.readValue(getClass().getClassLoader().getResourceAsStream("setup/player.yaml"));
+        player.setId(id);
+
+        client.setPlayer(new Player(id, player.getPlayerCords()));
 
         CreateGameResponse gameResponse = new CreateGameResponse(pass, player);
+        Game game = new Game(
+                pass,
+                new ArrayList<>(List.of(client))
+        );
+        client.setGame(game);
+        client.getPlayer().setCurrentRoom(globalContext.getProperties().getProperty("rooms.default"));
+        globalContext.getGames().add(game);
 
-        client.session().sendMessage(gameResponse);
+        client.getSession().sendMessage(gameResponse);
     }
 }

server/src/main/java/cz/jzitnik/server/events/handlers/PlayerMoveHandler.java

@@ -0,0 +1,26 @@
+package cz.jzitnik.server.events.handlers;
+
+import cz.jzitnik.common.socket.messages.player.PlayerMove;
+import cz.jzitnik.common.socket.messages.player.PlayerMovedInUrRoom;
+import cz.jzitnik.server.annotations.EventHandler;
+import cz.jzitnik.server.context.GlobalContext;
+import cz.jzitnik.server.events.AbstractEventHandler;
+import cz.jzitnik.server.game.Client;
+import lombok.RequiredArgsConstructor;
+
+@RequiredArgsConstructor
+@EventHandler(PlayerMove.class)
+public class PlayerMoveHandler extends AbstractEventHandler<PlayerMove> {
+    private final GlobalContext globalContext;
+
+    @Override
+    public void handle(PlayerMove event, Client client) {
+        client.getPlayer().getCords().updateCords(event.newCords());
+
+        for (Client player : client.getGame().getPlayers()) {
+            if (player.getPlayer().getCurrentRoom().equals(client.getPlayer().getCurrentRoom()) && player.getPlayer().getId() != client.getPlayer().getId()) {
+                player.getSession().sendMessage(new PlayerMovedInUrRoom(client.getPlayer().getId(), event.newCords()));
+            }
+        }
+    }
+}

server/src/main/java/cz/jzitnik/server/game/Client.java

@@ -1,5 +1,25 @@
 package cz.jzitnik.server.game;
 
 import cz.jzitnik.server.socket.SocketSession;
+import lombok.Getter;
+import lombok.Setter;
 
-public record Client(SocketSession session) {}
+@Getter
+public final class Client {
+    private final SocketSession session;
+    @Setter
+    private Player player;
+    @Setter
+    private Game game;
+
+    public Client(SocketSession session, Player player, Game game) {
+        this.session = session;
+        this.player = player;
+        this.game = game;
+    }
+
+    public Client(SocketSession session, Player player) {
+        this(session, player, null);
+    }
+
+}

server/src/main/java/cz/jzitnik/server/game/Game.java

@@ -1,4 +1,13 @@
 package cz.jzitnik.server.game;
 
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+import java.util.List;
+
+@Getter
+@AllArgsConstructor
 public class Game {
+    private String password;
+    private List<Client> players;
 }

server/src/main/java/cz/jzitnik/server/game/Player.java

@@ -0,0 +1,15 @@
+package cz.jzitnik.server.game;
+
+import cz.jzitnik.common.models.coordinates.RoomCords;
+import lombok.Getter;
+import lombok.RequiredArgsConstructor;
+import lombok.Setter;
+
+@Getter
+@RequiredArgsConstructor
+public class Player {
+    private final int id;
+    private final RoomCords cords;
+    @Setter
+    private String currentRoom;
+}

server/src/main/java/cz/jzitnik/server/socket/WebSocket.java

@@ -18,7 +18,8 @@ public class WebSocket {
     @OnOpen
     public void onOpen(Session session, EndpointConfig config) {
         this.globalContext = (GlobalContext) config.getUserProperties().get("globalContext");
-        globalContext.registerClient(session);
+
+        globalContext.registerClient(new Client(new SocketSession(session), null));
         log.debug("Client connected: {}", session.getId());
     }
 

server/src/main/java/cz/jzitnik/server/utils/PasswordGenerator.java

@@ -0,0 +1,23 @@
+package cz.jzitnik.server.utils;
+
+import java.security.SecureRandom;
+
+public class PasswordGenerator {
+    private static final String CHARACTERS = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
+    private static final SecureRandom RANDOM = new SecureRandom();
+
+    public static String generatePassword(int length) {
+        if (length <= 0) {
+            throw new IllegalArgumentException("Password length must be greater than 0");
+        }
+
+        StringBuilder password = new StringBuilder(length);
+
+        for (int i = 0; i < length; i++) {
+            int index = RANDOM.nextInt(CHARACTERS.length());
+            password.append(CHARACTERS.charAt(index));
+        }
+
+        return password.toString();
+    }
+}

server/src/main/resources/config.properties

@@ -0,0 +1 @@
+rooms.default=spawn