# Dengine
Dengine is a 2d game engine developed with OpenGL and low-level libraries in C. The main goal of Dengine is to facilitate learning from many aspects of Computer Science. Alongside Dengine a game is being built which guides the development of features for the game. Dengine is inspired by Handmade Hero, with a focus on developing as many features with minimal libraries, such that it is not too time-consuming and counter-productive to do so.

## Milestones
Milestones/features/capabilities that have been added to the engine.

### "Handmade" API
- Custom Standard Library: (improved as is required) (e.g. strlen, atoi, itoa)
- Custom Math Library: (improved as is required)
- Custom String Library
- Custom Memory Allocator: alloc memory from preallocated blocks
- Custom XML Parser: for reading game data config

### Rendering
- Animation playback: from spritesheets
- Batched rendering: minimise draw calls grouped on texture & color modulation
- Generate on runtime bitmap font sheet from font file
- Rendering sprites: through GLEW and GLFW to OpenGL programmable pipeline
- Rendering rects and text

### Other
- Audio API: through OpenAL and STB Vorbis for audio functionality
- Audio streaming
- Asset loading system using hashtables
- Collision using AABB
- Debug services/display
- Input parsing, delayed, raw read
- IMGUI style GUI: Buttons, textfields, scroll bars
- Moveable windows
- Primitive entity system
- Primitive battle system

## Building
Dengine is currently being developed using Visual Studio 2015. You can build the project by executing the (preferred) **build.bat** in the src folder, or simply opening the project in Visual Studio and compiling. 

Additionally, an OpenAL-Soft DLL is required which can be downloaded from the Window pre-built binaries of [OpenAL here.](http://kcat.strangesoft.net/openal.html)

NOTE: Assets are not included in the repository.

## Dependencies
- [GLEW](http://glew.sourceforge.net/): Cross platform OpenGL wrapper.
- [GLFW](http://www.glfw.org/): Cross platform OpenGL Application creation.
- [STB](http://www.glfw.org/): Single file utility libraries by Sean Barrett.
- [OpenAL-Soft](https://github.com/kcat/openal-soft): Software implementation of the OpenAL 3D audio API.