joonsey/ngn

Another Game Engine

Just another rudamentary game engine to experiment with rendering pipelines in OpenGL.

Quick start

Options

• run with built-in local server

  build/ngn --local We can run with a built in server on a seperate thread, this is just quick way of hosting. The game will also share some memory with the server

• join a target server

  build/ngn --join <ip> To join a server you need to target a valid ip address

• host a standalone server

  build/ngn --server <ip | optional> To host a standalone server without a game client you can run this command. omitting the ip will default to loopback interface, which is likely what you would be running on anyway.

Pre-requisite

Linux

We use raylib in the backend NOTE: remember to build it so that it can be dynamically linked

git clone https://github.com/raysan5/raylib.git raylib
cd raylib/src/
make PLATFORM=PLATFORM_DESKTOP RAYLIB_LIBTYPE=SHARED # To make the dynamic shared version.
sudo make install RAYLIB_LIBTYPE=SHARED # Dynamic shared version.

to compile and run the engine

./build.sh && build/ngn

Windows

Windows build does not statically link raylib, recommend using x64-mingw-gcc, alternatively you can compile a binary using the docker image in .Dockerfile

Debugging

The build.sh file builds with debug symbols so that you can run ./build.sh && gdb build/ngn if you want to run it in GDB. This can be nice, also particularly because we often times want to hot-reload the engine while testing. (Keep in mind there are some clear limits to the hot-reload feature)

NOTE: If you find it annoying to leave and enter gdb everytime, you can build and source the new binary from within gdb as well

gdb

shell ./build.sh && file build/ngn

Logging

At the moment the best way to change logging is to change the LOG_LEVEL in the logging initializer in src/main.c

	initialize_logging(NLOG_LEVEL); // log level is lowest level logged, inclusive