olcPixelGameEngine

kotlin-native port of olcPixelGameEngine, a tool used in javidx9's YouTube videos and projects

Tested on windows 10 and macOS Mojave

Thanks and Inspirations

All credit goes to https://github.com/OneLoneCoder

Huge thanks to the awesome dude who created this: https://github.com/Dominaezzz/kgl

How to build?

You have to have gradle tool installed.

You have to have GLFW installed. Call brew install glfw on Mac; apt install glfw on Ubuntu

Install GLFW on Windows

Download and install msys2

Run msys and install glfw3 for mingw64

You want to have c:\msys64\mingw64\bin in your PATH, but I stumbled upon an issue. When I added it directly into Windows Environment, linking of the project started to fail. So, I tried to add it in project configuration, like Path=c:\msys64\mingw64\bin\\;%Path% and it works like that.

Assemble and Run

Just do gradle assemble or gradle runOlcGameEnginePortSampleAppReleaseExecutableOlcGameEnginePort

Assemble will create executable in build/bin catalog. And second command will run sample app.

Couple of demo apps also available and can be directly compiled and run from cmd:

Fireworks demo: gradle runFireworksDemoReleaseExecutableOlcGameEnginePort
Asteroids demo: gradle runAsteroidsDemoReleaseExecutableOlcGameEnginePort
Crude Breakout demo: gradle runFireworksDemoReleaseExecutableOlcGameEnginePort
Boids demo: gradle runBoidsDemoReleaseExecutableOlcGameEnginePort

Disclaimer

~~Performance is shit =)~~

~~I blame garbage collector for it. Probably will do profiling and optimization.~~

I've made some optimizations with some help from Kotlin native team. Now sample app runs with stable 80 fps after short worm-up.

~~Will do an additional step after kgl updates to 1.3.50 version of kotlin-multiplatform.~~

Port is not fully complete:

PNG sprite loading not yet ported
Texture pack support are not ported
Here and there you may find a missing function
All unnecessary UInts replaced with Ints