Oak

A Pure Go game engine

Table of Contents

1. Installation

2. Features

3. Support

4. Quick Start

5. Examples

6. Finished Games

---

Installation

go get -u github.com/oakmound/oak/v4

Features and Systems

1. Window Management
   • Windows and key events forked from shiny
   • Support for multiple windows running at the same time
2. Image Rendering
   • Manipulation
     • render.Modifiable interface
     • Integrated with optimized image manipulation via gift
   • Built in Renderable types covering common use cases
     • Sprite, Sequence, Switch, Composite
     • Primitive builders, ColorBox, Line, Bezier
     • History-tracking Reverting
   • Primarily 2D
3. Particle System
4. Mouse Handling
5. Joystick Support
6. Audio Support
7. Collision
   • Collision R-Tree forked from rtreego
   • 2D Raycasting
   • Collision Spaces
     • Attachable to Objects
     • Auto React to collisions through events
8. 2D Physics System
9. Event Handler

Support

For discussions not significant enough to be an Issue or PR, feel free to ping us in the #oak channel on the gophers slack. For insight into what is happening in oak see the blog.

Quick Start

This is an example of the most basic oak program:

package main

import (
    "github.com/oakmound/oak/v4"
    "github.com/oakmound/oak/v4/scene"
)

func main() {
    oak.AddScene("firstScene", scene.Scene{
        Start: func(*scene.Context) {
            // ... draw entities, bind callbacks ... 
        }, 
    })
    oak.Init("firstScene")
}

See below or navigate to the examples folder for demos. For more examples and documentation checkout godoc for reference documentation, the wiki, or our extended features in grove.

Examples

<img width="200" src="examples/platformer/example.gif" a=examples/platformer> Platformer	Top down shooter	Flappy Bird
Bezier Curves	Joysticks	Piano
Screen Options	Multi Window	Particles

Games using Oak

To kick off a larger game project you can get started with game-template.

<img width="200" src="https://img.itch.zone/aW1hZ2UvMTk4MjIxLzkyNzUyOC5wbmc=/original/aRusLc.png" a=examples/platformer-tutorial> Agent Blue	Fantastic Doctor
Hiring Now: Looters	Jeremy The Clam
Diamond Deck Championship	SokoPic

On Pure Go

Oak has recently brought in dependencies that include C code, but we still describe the engine as a Pure Go engine, which at face value seems contradictory. Oak's goal is that, by default, a user can pull down the engine and create a fully functional game or GUI application on a machine with no C compiler installed, so when we say Pure Go we mean that, by default, the library is configured so no C compilation is required, and that no major features are locked behind C compliation.

We anticipate in the immediate future needing to introduce alternate drivers that include C dependencies for performance improvements in some scasenarios, and currently we have no OSX solution that lacks objective C code.