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Daylily-Zeleen / GD-EOS

Epic Online Services for Godot. Use as C++ SDK or compile as GDScript SDK.

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GD-EOS

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Epic Online Services for Godot. Use as C++ SDK or compile as GDScript SDK.

Feature

  1. OOP and Godot Style, all APIs have been typed as far as possible.
  2. Almost APIs are generated from EOS C SDK, you can refer Epic Online Services document directly.
  3. EOSMultiplayerPeer for godot multiplayer.

Support Me

This project is cost a lot of time and effort, if it can help you, please buy me a coffee.

Valid EOS SDK Version

  • EOS-SDK-Android-32303053-v1.16.3
  • EOS-SDK-32303053-v1.16.3

Outdated

  • EOS-SDK-32273396-v1.16.2
  • EOS-SDK-27379709-v1.16.1
  • EOS-SDK-Android-27379709-v1.16.1

How to start

  1. Get GD-EOS plugin:

    • Download pre-compiled plugin from release page.
    • Compile by yourself.

  2. Install it like regular Godot plugin.

  3. Initialize EOS correctly, then you can use singletons of EOS. Here is a simple example:

     extends Node

 # EOS settings, you can get these from your epic developer portal.
 # For publishing, it is better not to store in clear text.
 @export var product_name: String = ""
 @export var product_version: String = ""
 @export var product_id: String = ""
 @export var sandbox_id: String = ""
 @export var deployment_id: String = ""
 @export var client_id: String = ""
 @export var client_secret: String = ""
 @export var encryption_key: String = ""

 func _ready() -> void:
     # Initialize EOS
     var init_options := EOSInitializeOptions.new()
     init_options.product_name = product_name
     init_options.product_version = product_version
     var result_code: EOS.Result = EOS.initialize(init_options)
     if result_code != EOS.Success:
         printerr("Initialize EOS faild: ", EOS.result_to_string(result_code))
         return

     # Setup Logging.
     EOS.set_logging_callback(_eos_log_callback)
     EOS.set_log_level(EOS.LC_ALL_CATEGORIES, EOS.LOG_Info)

     # Create platform
     var create_options := EOSPlatform_Options.new()
     create_options.product_id = product_id
     create_options.sandbox_id = sandbox_id
     create_options.deployment_id = deployment_id
     create_options.client_credentials = EOSPlatform_ClientCredentials.new()
     create_options.client_credentials.client_id = client_id
     create_options.client_credentials.client_secret = client_secret
     create_options.encryption_key = encryption_key
     create_options.flags = EOSPlatform.PF_WINDOWS_ENABLE_OVERLAY_OPENGL
     EOSPlatform.platform_create(create_options)


 # Log callback.
 static func _eos_log_callback(category: String, message: String, level: EOS.LogLevel) -> void:
     var msg: String = "[%s]: %s" % [category, message]
     if level >= EOS.LOG_Info:
         print(msg)
     elif level >= EOS.LOG_Warning:
         print_rich("[color=yellow]%s[/color]" % msg)
     elif level >= EOS.LOG_Error:
         print_rich("[color=orange]%s[/color]" % msg)
     else:
         printerr(msg)

  4. Now, you can use all functions of EOS, please refer Epic Online Services' document for more details.

How to run demo

  1. Enable required features for you product in developer portal. For convenience, you can enable all features of your client policy, or use the redefine policy "Peer2Peer".
  2. Set your product parameters to the root node of "main.tscn" scene.
  3. Prepare two Epic accounts; or use one Epic Account and use two login way at the same time which describe below.
  4. Run project with two instances to login:
    1. Set "External Credential Type" to "EPIC": i. Set "Login Credential Type" to "AccountPortal"： 1. You should ensure your EPIC Account is added to your organization member, and hava a approprite role. 2. The permissions of your application in Epic Account Services should enable "Basic Profile", "Online Presence", "Friend", but "Country" should keep disabled. Keep "Id" and "Token" empty, click "Login" button an jump to external browser to request authentification. ii. Set "Login Credential Type" to "Developer"，you need to login your Epic Accounts with token in DevAuthTool which in the "Tools" folder of EOS SDK.
      • Set "Id" to the address of DevAuthTool，for example: localhost:8081
      • Set "Token" to the token of your account which is defined in DevAuthTool.
    2. Set "External Credential Type" to "DEVICESSID_ACCESS_TOKEN": It will create a token which relate your device.
  5. After login, user "Create" button to create a lobby in one instance, then click "Refresh" button to get lobby list, select a lobby and join it by "Join" button.
  6. Now, the two instances should be able to play together.

How to compile

  1. Clone this repo with submodule (godot-cpp).

  2. Download EOS C SDK from Epic Developer Portal, and place is at "thirdparty/eos-sdk". (Because I have not right to redistribute it).

  3. Setup your enviroment. In orther words, you need python3, scons, and an appropriate c++ compiler. Additionally, you need ndk to compile for android.

  4. Navigate to this project root, and run commands below:

    • For debug build:

          scons platform=windows target=template_debug debug_symbols=yes

    • For release build:

          scons platform=windows target=template_release

    More detail of compile commands, please refer to godot-cpp's compile system. If you change the output library name by using compile options, please modify "demo/addons/gd-eos/gdeos.gdextension" to fit your library name.

  5. Last, you can get the compiled addon which is localed at "demo/addons/gd-eos/".

Known issues

  1. If you want to use overlay (only available for Windows), pay attention to the settings of the renderer.
  2. About Android exporting, if you use precompiled binary library, you need to download EOS-SDK-Android-32303053-v1.16.3(pay attention to the version) from epic developer portal for getting "aar" file (again, I have not right to dispatch SDK).
  3. XxxAttributeData.Key will be converted to upper case when transfering to remote peer, you should not use lower charactors in your key.
  4. It is not recommended to use 1.16.1 or previous version, because 1.16.2 fixed many bugs.

Exporting for Android

  1. Download "EOS Android SDK 1.16.3(or 1.16.2, but not recommend)" from Epic Developer Portal, unzip it and put its SDK folder under the thirdparty/eos-sdk directory, then compile this plugin:

    scons platform=android target=tempalte_debug ANDROID_HOME="path/to/your/android/sdk"
scons platform=android target=tempalte_release ANDROID_HOME="path/to/your/android/sdk"

    After compiling, copy the plugin to your Godot Project.

  2. Follow the tutorial Gradle builds for Andriod, generate an android project at res://android/build.

  3. Configurate your android project by following the Epic Online Services document.

    1. Add SDK/Bin/Android/static-stdc++/aar/eossdk-StaticSTDC-release.aar, assign its configuration as implementation, as dependency to your andoird project.

    2. Add other dependencies which requeired by "EOS Andoird SDK". At last, the dependencies section in build.gradle file will like this:

      dependencies {
    // Other dependencies...

    // EOS dependencies...
    implementation files('path\\to\\static-stdc++\\aar\\eossdk-StaticSTDC-release.aar')
    implementation 'androidx.appcompat:appcompat:1.5.1'
    implementation 'androidx.constraintlayout:constraintlayout:2.1.4'
    implementation 'androidx.security:security-crypto:1.0.0'
    implementation 'androidx.browser:browser:1.4.0'
}

    3. Add your "ClientId" of your Product to android configuration:

      1. Follow the Epic Document, add it to string.xml.

      2. Or add it to the sub section defaultConfig of the sections android in build.gradle file:

        android {
    ... other code

    defaultConfig {
        ... other code
    
        // This is needed by EOS Android SDK
        String ClientId = "PUT YOUR EOS CLIENT ID HERE"
        resValue("string", "eos_login_protocol_scheme", "eos." + ClientId.toLowerCase())
    }
}

    4. According to the requirement of "EOS Android SDK", update the minSdk to 23.

    5. Modify src/com/godot/game/GodotApp.java:

      1. Load EOSSDK library.
      2. Initialize EOSSDK. At last, it will like this:
      package com.godot.game;

import com.epicgames.mobile.eossdk.EOSSDK;     // added
import org.godotengine.godot.GodotActivity;

import android.os.Bundle;

public class GodotApp extends GodotActivity {
    static {                                   // added
        System.loadLibrary("EOSSDK");          // added
    }                                          // added

    @Override
    public void onCreate(Bundle savedInstanceState) {
        EOSSDK.init(getActivity());             // added

        setTheme(R.style.GodotAppMainTheme);
        super.onCreate(savedInstanceState);
        }
    }

  4. Add a new Android exporting profile, enabled Use Gradle Build in Gradle Build section, and update Min SDK to 23. Enable required permissions for "EOS Android SDK": ACESSS_NETWORK_STATE, ACCESS_WIFI_STATE and INTERNET. Fill other infomations if needs.

  5. You can export Android APK if there have not problem.

Cautious

This repo is lack of testing. The name of Apis may be changed in later version.

TODO

  1. Detect deprecated menbers instead of heard codeing.
  2. Generate typed callback apis for c++ user.
  3. Add ios build.

Others

  1. Thanks to Delano Lourenco.The Godot multiplayer mechanism is base on epic-online-servies-godot.
  2. Welcome to submit any pr for bug fix or improvement.

About

Epic Online Services for Godot. Use as C++ SDK or compile as GDScript SDK.

code-generationepicepic-online-servicesgdextensiongdscriptgodotmultiplayerp2p

License:MIT License

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