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Spear

Spear is a simple 2.5D game engine I have been working on since I started learning Haskell. The project's goal is to put what I learn into practise, to explore how far I can get with Haskell and if the results are decent enough, to build one or two game demos along the way.

Installation (Ubuntu)

Install dependencies, then build with cabal:

$ sudo apt install libxxf86vm-dev libglfw3-dev
$ git clone https://github.com/jeannekamikaze/Spear.git
$ cd Spear
$ cabal build

Run a demo:

$ cabal run pong

Features

Application and Input

  • Easy way to set up a window with the desired OpenGL context version.
  • Raw polled, toggled and delayed input.
  • High resolution timer.

Assets

  • MD2 and OBJ model loaders.
  • BMP image loader.
  • Assets backed up by Resource for automatic (and optionally, manual) deletion.

Collision

  • Simple collision library featuring AABBs and bounding circles.

OpenGL

  • OpenGL >=3 wrapper library.
  • OpenGL resources (VAOs, buffers, textures, etc.) backed up by Resource for automatic (and optionally, manual) deletion.

Math

  • Vectors, matrices, quaternions, cameras, segments, rays, etc.
  • The Spatial2 and Spatial3 type classes for objects that can be moved around in 2D and 3D space, respectively.

Render

  • Static and vertex-animated model resources, compiled into a VAO for efficient rendering.
  • Static and vertex-animated model renderers. Vertex animation is done in a vertex shader.

Scene

  • Automated loading of scenes and scene resources as described by scene files.