Asteroids Engine

The Asteroids engine is a C++ 2D engine.

Features:

• Simplistic Networking interface (with automatic syncing of entities and components, and is quite resilient to lag)
• Networked components and entities
• Networked 2D physics
• GUI system (powered by TGUI)
• Window and audio system (powered by SFML)
• Logging and error handling system

The engine is named after where it originated from, the game Asteroids. Documentation is a work in progress, but most of the code is self-explanatory.

Libraries

There are many libraries that the asteroids engine uses:

• bitsery: For serialization and deserialization of networking messages
• flecs: Entity-Component-System handling
• GameNetworkingSockets: Steam's networking library, used for of course networking
• SFML: Audio, Window, Rendering handling
• TGUI: GUI handling
• THST: Spatial partitioning library
• nlohman/json: For config reading and writing
• boost: various utility functions

Important for those building on Windows

It is required that you use VCPKG to build this engine, it is part of this engine's toolchain on Windows. Below is a step by step guide on how to install vcpkg

Installing vcpkg:

$ git clone https://github.com/microsoft/vcpkg
$ .\vcpkg\bootstrap-vcpkg.bat
$ .\vcpkg\vcpkg integrate install

Installing the neccessary packages with vcpkg

.\vcpkg\vcpkg install GameNetworkingSockets --triplet=x64-windows
.\vcpkg\vcpkg install protobuf --triplet=x64-windows

This is a crucial step! Guide yourself to the "Edit Enviroment Variables for your account" panel, next click "new." In the "variable name" field type "VCPKG_ROOT," and then under the "variable value" field insert the file path of where you cloned vcpkg, including the vcpkg directory itself. The variable value field should look something like this: "C:/My/path/to/the/thing/vcpkg"

Finally, in between where you call cmake_minimum_required() and your project(), insert this:

if(WIN32)
    message("Using the VCPKG Toolchain for Windows")
    set(CMAKE_TOOLCHAIN_FILE "$ENV{VCPKG_ROOT}/scripts/buildsystems/vcpkg.cmake")
endif()