Moonshot RTS

This is a game in development for Github Game Off 2020. Made in Go with ebiten.

moonshot.mp4

Why Go?

While I usually use Unity for game jams, I decided to try writing a game in Go this time.

• It's fun to build a simple engine from scratch, even if it takes longer time.
• Since it's GitHub's Game Off, I want this game to be fully open source.
• While Unity is a complete platform, it feels bloated at times and I had a terrible experience using it together with git.
• I hope the simplicity of Go's syntax can make it easier to understand the project for anyone looking to get into Go or gamedev.

Theme

• It's a moonshot, because it's my first attempt at an RTS. 😅
• Building an empire out of a small settlement is a moonshot as well.

Engine

I use ebiten library for drawing images and basic game loop.

I'm trying to build a practical Entity-Component-System pattern. What I did so far is heavily inspired by EngoEngine/ecs. However, I took a bit different approach with interfaces. This is still under heavy development, though. 🙂

The TL;DR version of ECS is:

• The entire game is built out of Entities, Components, and Systems.
• An entity is a container for components with a unique ID.
• A component is a data structure, describing some set of common values.
• A system is where the game logic lives for a particular area.

For example, there's DrawingSystem that draws sprites on the screen. It requires an entity with Drawable (a sprite) and WorldSpace (a position) components.

Project structure

• internal/
  • archetypes
  • assets
  • components
  • engine
  • game
  • systems

Game

• Right now, my idea is a mix between Age of Empires style RTS, and Civilzation resource tiles
• However, I started out focusing on the engine, so I'm not sure where this will go yet. 😀

Assets

This will possibly change, but right now:

• Medieval RTS from Kenney
• UI Pack: RPG Expansion from Kenney
• OpenSans font from Google

Running

go run ./cmd/rts