Documentation Developpeur Hytale Java

Portée et précision

Ces documents combinent les pages de politique officielles d'Hytale avec les signatures d'API d'exécution extraites de la version actuelle du serveur. Utilisez-le comme guide pratique de mise en œuvre pour le développement de plugins/mods Java sur Hytale Depot.

Validation

Cette section documente comment les exemples de Dev Docs sont comparés au fichier jar d'exécution actuel.

Commande de vérification

python3 tools/generate_hytale_api_index.py ../HytaleServer.jar apps/web/lib/hytale-api-index.json && npm test

Pistes de développement

Utilisez ces pistes comme ordre de construction : commencez par le cycle de vie/les événements, puis les domaines de jeu, puis les licences premium.

Plugin de démarrage rapide (Java)

import com.hypixel.hytale.server.core.Message;
import com.hypixel.hytale.server.core.command.system.AbstractCommand;
import com.hypixel.hytale.server.core.command.system.CommandContext;
import com.hypixel.hytale.server.core.plugin.JavaPlugin;
import com.hypixel.hytale.server.core.plugin.JavaPluginInit;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;

public final class StarterPlugin extends JavaPlugin {
  private final ScheduledExecutorService scheduler =
      Executors.newSingleThreadScheduledExecutor(r -> new Thread(r, "starter-heartbeat"));

  public StarterPlugin(JavaPluginInit init) { super(init); }

  @Override
  public CompletableFuture<Void> preLoad() {
    getLogger().atInfo().log("preLoad -> %s", getIdentifier());
    return CompletableFuture.completedFuture(null);
  }

  @Override
  protected void setup() {
    getCommandRegistry().registerCommand(new StarterStatusCommand());
  }

  @Override
  protected void start() {
    scheduler.scheduleAtFixedRate(
        () -> getLogger().atInfo().log("starter heartbeat"),
        0,
        1,
        TimeUnit.SECONDS);
    getTaskRegistry().registerTask(CompletableFuture.completedFuture(null));
  }

  @Override
  protected void shutdown() {
    scheduler.shutdownNow();
  }

  private final class StarterStatusCommand extends AbstractCommand {
    private StarterStatusCommand() { super("hdstarter", "Starter plugin status command"); }

    @Override
    protected CompletableFuture<Void> execute(CommandContext ctx) {
      ctx.sendMessage(Message.raw("[Starter] plugin is active."));
      return CompletableFuture.completedFuture(null);
    }
  }
}

Modèle de gestionnaire d'événements

getEventRegistry().registerGlobal(PluginSetupEvent.class, event -> {
  // Register runtime handlers after plugin startup to avoid lifecycle issues.
  getLogger().atInfo().log("Plugin setup event: %s", event.getPlugin().getName());
  // Keep handler work small and move slow tasks to an async executor.
});

Server Operations

Practical dedicated-server operations validated against the current jar manifest, option strings, config classes, and shipped runtime artifacts in this workspace.

Launch Commands

Authentication + Network Checklist

/auth login device
Visit https://accounts.hytale.com/device
Enter the shown code and wait for "Authentication successful".

Windows: New-NetFirewallRule -DisplayName "Hytale Server" -Direction Inbound -Protocol UDP -LocalPort <server-port> -Action Allow
Linux ufw: sudo ufw allow <server-port>/udp
Linux iptables: sudo iptables -A INPUT -p udp --dport <server-port> -j ACCEPT

Server File Layout

Observed from the current runtime artifacts plus the update/bootstrap expectations exposed by the jar. Use this as the baseline structure to keep updates, backups, and saves stable.

Server Config JSON (config.json)

Field-level behavior reference mapped to the generated config structure used by current server builds.

Example shape for the current server config model

{
  "Version": 4,
  "ServerName": "My Hytale Server",
  "MOTD": "Private test shard",
  "Password": "",
  "Host": "0.0.0.0",
  "Port": 5520,
  "MaxPlayers": 128,
  "MaxViewRadius": 8,
  "Defaults": { "World": "default", "GameMode": "Adventure" },
  "ConnectionTimeouts": {},
  "RateLimit": {},
  "Modules": {},
  "LogLevels": {},
  "Plugins": {},
  "Mods": {},
  "ModLoadOrder": [],
  "DefaultModsEnabled": true,
  "DisplayTmpTagsInStrings": false,
  "PlayerStorage": { "Type": "Hytale" },
  "AuthCredentialStore": { "Type": "Encrypted", "Path": "auth.enc" },
  "Update": {},
  "Backup": {},
  "WorldMap": {}
}

World Config JSON (universe/worlds/*/config.json)

World-level toggles directly control simulation, persistence, PvP behavior, and client-facing environment effects.

Update Config Reference (config.json -> Update)

Example shape for the current world config model

{
  "Version": 4,
  "DisplayName": "default",
  "Seed": 1768426248534,
  "WorldGen": { "Type": "Hytale", "Name": "Default", "Version": "0.0.0" },
  "WorldMap": {},
  "IsTicking": true,
  "IsBlockTicking": false,
  "IsPvpEnabled": false,
  "IsFallDamageEnabled": false,
  "IsGameTimePaused": true,
  "GameMode": "Adventure",
  "ClientEffects": {
    "SunHeightPercent": 100.0,
    "BloomIntensity": 0.30000001192092896
  },
  "IsSpawningNPC": false,
  "IsAllNPCFrozen": true,
  "IsSavingPlayers": true,
  "IsSavingChunks": true,
  "SaveNewChunks": false,
  "IsUnloadingChunks": false
}

Manuels de configuration du serveur

Lignes de base orientées production pour les styles de serveur courants. Utilisez-les comme points de départ et définissez votre propre charge de travail.

Server Config Reference (Runtime Domains)

This table maps high-value configuration domains from the current HytaleServer.jar runtime packages to practical option-level guidance.

Indicateurs de démarrage JVM

Profils de démarrage Java recommandés pour les opérateurs de serveurs Hytale. Choisissez un profil et une référence sous une charge de joueur réelle.

-Xms4G -Xmx4G -XX:+UseG1GC -XX:+ParallelRefProcEnabled -XX:MaxGCPauseMillis=80 -XX:+AlwaysPreTouch -XX:+DisableExplicitGC -XX:+PerfDisableSharedMem

-Xms6G -Xmx6G -XX:+UseZGC -XX:+ZGenerational -XX:+AlwaysPreTouch -XX:+DisableExplicitGC

-Xms2G -Xmx2G -XX:+UseG1GC -XX:MaxGCPauseMillis=120 -XX:+HeapDumpOnOutOfMemoryError

Assets Runtime Reference & Workflow

The current runtime treats assets as an immutable payload/cache input. Keep custom content in mod/plugin packs and avoid patching the shipped base assets directly.

Plugin/Mod Manifest Reference

Manifest fields used by starter resources and expected by the loader during startup.

{
  "Group": "HytaleDepot",
  "Name": "UiPluginTemplate",
  "Version": "1.0.0",
  "Description": "Hytale Depot plugin template for ui.",
  "Authors": [{ "Name": "Hytale Depot" }],
  "Website": "https://github.com/VgamerV3/hytale-plugin-template-ui",
  "ServerVersion": "2026.03.26-89796e57b",
  "Dependencies": {},
  "OptionalDependencies": {},
  "DisabledByDefault": false,
  "Main": "net.hytaledepot.templates.plugin.ui.UiPluginTemplate",
  "IncludesAssetPack": false
}

Domaines API principaux

Organisé par zones de développement pratiques afin que les développeurs de plugins/mods puissent localiser rapidement les bonnes API d'exécution.

Modèles de démarrage (Plugin + Mod)

Starter repository references for core systems, UI, events, entities, networking, inventory, messages, permissions, commands, config, economy, persistence, advanced utilities, and smoke tests.

Treat these repositories as scaffolding references. Regenerate the runtime index against the latest jar before relying on any older starter code unchanged.

Meilleurs packages d'exécution

Espaces de noms de package haute densité à partir de l’index jar extrait, utiles pour explorer rapidement les sous-systèmes.

Intégration de l'API de licence (plugins/mods)

Les ressources Premium doivent valider les clés au démarrage du serveur et périodiquement au moment de l'exécution, à l'aide de jetons d'intégration du créateur et de réponses signées.

Managed Injection Config Example

# HytaleDepot Integration Config - auto-injected at upload
plugin-secret: "build_scoped_hmac"
asset-id: "asset_uuid"
build-hash: "published_build_sha256"
secret-version: "4"
validate-endpoint: "https://hytaledepot.net/api/licenses/validate"
deployment-secret-env: "HD_DEPLOYMENT_SECRET"
asset-name: "Example Plugin"
asset-type: "plugin"

Managed Injection Runtime

Injected runtime behavior
1. Adds net.hytaledepot.runtime.HdLicenseBootstrap.class
2. Adds net.hytaledepot.runtime.HdLicenseCommand.class
3. Rewrites manifest.json Main -> net.hytaledepot.runtime.HdBootstrapWrapper
4. Wrapper calls HdLicenseBootstrap.validate(this) before the original setup path
5. First-run license entry uses /hdlicense <assetId> <licenseKey> or hd-licenses/<assetId>.pending
6. Verified buyer keys are cached in hd-licenses/<assetId>.key
7. If /api/status is in maintenance or unreachable, startup fail-opens for that boot only

Injected Validate Request Example

POST /api/licenses/validate
X-Plugin-Secret: <build_scoped_derived_secret>
Content-Type: application/json

{
  "asset_id": "asset_uuid",
  "license_key": "HD-XXXX-XXXX",
  "server_ip": "x.x.x.x",
  "build_hash": "published_build_sha256",
  "secret_version": "4",
  "deployment_secret": "server_only_secret",
  "timestamp": "1739553549000",
  "nonce": "abc12345",
  "signature": "HMAC_SHA256(pluginSecret, licenseKey|assetId|serverIp|timestamp|nonce)"
}

Exemple d'application des règles de démarrage

import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;
import java.nio.charset.StandardCharsets;
import java.util.UUID;

String API_VALIDATE = "https://hytaledepot.net/api/licenses/validate";
String API_STATUS = "https://hytaledepot.net/api/status";
String API_RUNTIME_TOKEN = "https://hytaledepot.net/api/licenses/runtime-token";
String ASSET_ID = "asset_uuid";
String LICENSE_KEY = readBuyerLicenseKey();
String BUILD_HASH = "build_sha256_here";
String DEPLOYMENT_SECRET = System.getenv("HD_DEPLOYMENT_SECRET");
String RUNTIME_TOKEN = requestRuntimeTokenFromCreatorRelay(API_RUNTIME_TOKEN, ASSET_ID, BUILD_HASH);
String SERVER_IP = detectServerIp();

if (isApiTemporarilyUnavailable(API_STATUS)) {
  System.err.println("[HD License] Licensing API is in maintenance or unreachable.");
  System.err.println("[HD License] Loading this startup without license activation; next restart will require validation again.");
  return;
}

String timestamp = String.valueOf(System.currentTimeMillis());
String nonce = UUID.randomUUID().toString();

String payload = "{"
    + "\"asset_id\":\"" + ASSET_ID + "\","
    + "\"license_key\":\"" + LICENSE_KEY + "\","
    + "\"server_ip\":\"" + SERVER_IP + "\","
    + "\"build_hash\":\"" + BUILD_HASH + "\","
    + "\"deployment_secret\":\"" + DEPLOYMENT_SECRET + "\","
    + "\"timestamp\":\"" + timestamp + "\","
    + "\"nonce\":\"" + nonce + "\""
    + "}";

HttpRequest request = HttpRequest.newBuilder(URI.create(API_VALIDATE))
    .header("Content-Type", "application/json")
    .header("X-License-Token", RUNTIME_TOKEN)
    .POST(HttpRequest.BodyPublishers.ofString(payload, StandardCharsets.UTF_8))
    .build();

HttpResponse<String> response = HttpClient.newHttpClient().send(request, HttpResponse.BodyHandlers.ofString());
boolean allowed = response.statusCode() == 200
    && (response.body().contains("\"allowed\":true") || response.body().contains("\"allowed\": true"));

if (!allowed) {
  String reason = extractJsonField(response.body(), "reason_code");
  System.err.println("[HD License] Validation denied: " + reason);
  Thread.sleep(5000);
  System.exit(1);
}

static boolean isApiTemporarilyUnavailable(String statusUrl) {
  try {
    HttpResponse<String> status = HttpClient.newHttpClient().send(
      HttpRequest.newBuilder(URI.create(statusUrl)).GET().build(),
      HttpResponse.BodyHandlers.ofString()
    );
    return status.statusCode() >= 500
        || status.body().contains("\"enabled\":true")
        || status.body().contains("\"enabled\": true");
  } catch (Exception ignored) {
    return true;
  }
}

Exemple de demande de validation

{
  "asset_id": "asset_uuid",
  "license_key": "HD-XXXX-XXXX",
  "server_ip": "x.x.x.x",
  "build_hash": "build_sha256_here",
  "deployment_secret": "server_only_secret",
  "timestamp": "1739553549000",
  "nonce": "abc12345"
}

Exemple de réponse de validation

{
  "status": "invalid",
  "allowed": false,
  "reason_code": "ip_slots_exhausted",
  "expires_at": "2027-01-01T00:00:00.000Z",
  "offline_grace_seconds": 3600,
  "max_ip_slots": 2,
  "bindings": [{ "ip": "x.x.x.x", "lastSeenAt": "2026-04-02T10:21:00.000Z" }],
  "issued_at": "2026-02-15T09:12:21.000Z",
  "nonce": "r7FmK1ab",
  "signature": "hex_hmac_signature"
}

Références

Utilisez les références officielles Hytale pour les conseils en matière de politique/d’exécution et les référentiels communautaires pour les modèles de mise en œuvre.