android scala gl

Android OpenGL ES 2 / draw utility library written in scala
Link to source code on GitHub

Overview

This project serves to wrap up some common functionality regarding drawing to the screen on the Android platform. I am also fairly new to the scala language and have been very impressed with what I can do with it so far. I hope to continue to add more usefull utilities as I encounter a need for them.

Features

I will try to keep adding to this list as I go. For now here is a short list of features:

• Simple OpenGL drawable class hierarchy
  • Includes Triangle, Square, Line, Sprite class
• Simple way to extend functionality via shaders
• DRY (Do not repeat yourself)

Example Usage

val texInfo = Drawable.loadGLTexture(imgPath)

val w = 2
val h = 2

val verts = Array(-0.5f*w,  0.5f*h, 0.0f,   // top left
                -0.5f*w, -0.5f*h, 0.0f,   // bottom left
                 0.5f*w,  0.5f*h, 0.0f,   // top right
                 -0.5f*w, -0.5f*h, 0.0f,  // bottom left    
                 0.5f*w, -0.5f*h, 0.0f,   // bottom right
                 0.5f*w,  0.5f*h, 0.0f )  // top right
val color =  Array(1.0f, 1.0f, 1.0f, 1.0f)      
val tex = Array(     0.0f, 0.0f,  // top left
                              1.0f, 0.0f,  // bottom left
                              0.0f, 1.0f,  // top right
                              1.0f, 0.0f,  // bottom left
            1.0f, 1.0f,  // bottom right
            0.0f, 1.0f) // top right

val sprite = new Sprite( verts, color, tex, texInfo.textureId)

Example Projects

I currently use this iib in an Android app "Perspective Correct" that should be out in the google play store soon ~(10/20/2013)
Here is a screen shot of the current app