Enion Online

Overview

Enion Online is an Epic PvP Battle game between Orcs and Humans. It's a 3D browser-based multiplayer game that provides an immersive experience right within your favorite browser. The game is written using Clojure and ClojureScript, and utilizes the PlayCanvas game engine.

Repository Structure

This repository contains two main directories:

enion-cljs: This is the game client directory where all the client-side code resides.
enion-backend: This directory hosts all the server-side code necessary for handling multiplayer and other backend functionalities.

Getting Started

Prerequisites

Before you can run Enion Online, you need to install the following:

Setup and Run

Game Part

Navigate to the enion-cljs directory and install the necessary npm packages by running:

npm install

To start the game client, execute:

npm run watch

This will compile your ClojureScript code and start a development server. You can access the game client at:

http://localhost:8280

Backend Part

To start the game backend, navigate to the enion-backend directory and execute:

lein run

This will start your Clojure server.

Now, your game is up and running!

License

This project is licensed under the AGPL-3.0 License - see the LICENSE.md file for details. Please note, this project is not available for commercial purposes and is intended for personal use only.

Java error while running lein run command (Cannot invoke "java.lang.Character.charValue()" because "x" is null)

When I try lein run command I got the error below 👇 Might there be a version mismatch for one of the primary component?

❯ javac -version
javac 17

❯ java --version
openjdk 17 2021-09-14
OpenJDK Runtime Environment (build 17+35-2724)
OpenJDK 64-Bit Server VM (build 17+35-2724, mixed mode, sharing)

❯ clojure --version
Clojure CLI version 1.11.1.1347

❯ lein run
2023-08-13 09:29:50,339 [main] ERROR luminus.http-server - server failed to start on port
java.lang.NullPointerException: Cannot invoke "java.lang.Character.charValue()" because "x" is null
        at clojure.lang.RT.uncheckedIntCast(RT.java:1473)
        at aleph.http.server$start_server.invokeStatic(server.clj:650)
        at aleph.http.server$start_server.invoke(server.clj:584)
        at aleph.http$start_server.invokeStatic(http.clj:60)
        at aleph.http$start_server.invoke(http.clj:27)
        at luminus.http_server$start.invokeStatic(http_server.clj:19)
        at luminus.http_server$start.invoke(http_server.clj:15)
        at enion_backend.core$eval28069$fn__28070.invoke(core.clj:27)
        at mount.core$record_BANG_.invokeStatic(core.cljc:74)
        at mount.core$record_BANG_.invoke(core.cljc:73)
        at mount.core$up$fn__457.invoke(core.cljc:81)
        at mount.core$up.invokeStatic(core.cljc:80)
        at mount.core$up.invoke(core.cljc:78)
        at mount.core$bring.invokeStatic(core.cljc:247)
        at mount.core$bring.invoke(core.cljc:239)
        at mount.core$start.invokeStatic(core.cljc:289)
        at mount.core$start.doInvoke(core.cljc:281)
        at clojure.lang.RestFn.invoke(RestFn.java:397)
        at mount.core$start_with_args.invokeStatic(core.cljc:389)
        at mount.core$start_with_args.doInvoke(core.cljc:385)
        at clojure.lang.RestFn.invoke(RestFn.java:410)
        at enion_backend.core$start_app.invokeStatic(core.clj:52)
        at enion_backend.core$start_app.invoke(core.clj:50)
        at enion_backend.core$_main.invokeStatic(core.clj:61)
        at enion_backend.core$_main.doInvoke(core.clj:59)
        at clojure.lang.RestFn.invoke(RestFn.java:397)
        at clojure.lang.Var.invoke(Var.java:380)
        at user$eval28228.invokeStatic(form-init4819466814356749574.clj:1)
        at user$eval28228.invoke(form-init4819466814356749574.clj:1)
        at clojure.lang.Compiler.eval(Compiler.java:7194)
        at clojure.lang.Compiler.eval(Compiler.java:7184)
        at clojure.lang.Compiler.load(Compiler.java:7653)
        at clojure.lang.Compiler.loadFile(Compiler.java:7591)
        at clojure.main$load_script.invokeStatic(main.clj:475)
        at clojure.main$init_opt.invokeStatic(main.clj:477)
        at clojure.main$init_opt.invoke(main.clj:477)
        at clojure.main$initialize.invokeStatic(main.clj:508)
        at clojure.main$null_opt.invokeStatic(main.clj:542)
        at clojure.main$null_opt.invoke(main.clj:539)
        at clojure.main$main.invokeStatic(main.clj:664)
        at clojure.main$main.doInvoke(main.clj:616)
        at clojure.lang.RestFn.applyTo(RestFn.java:137)
        at clojure.lang.Var.applyTo(Var.java:705)
        at clojure.main.main(main.java:40)
Execution error (NullPointerException) at aleph.http.server/start-server (server.clj:650).
Cannot invoke "java.lang.Character.charValue()" because "x" is null

Full report at:
/var/folders/60/_zgg1c651tnc50r884s_w25w0000gn/T/clojure-6436788271937974564.edn

ertugrulcetin / enion Goto Github PK

enion's Introduction

Enion Online

Overview

Repository Structure

Getting Started

Prerequisites

Setup and Run

Game Part

Backend Part

License

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enion's Issues

Java error while running lein run command (Cannot invoke "java.lang.Character.charValue()" because "x" is null)

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