Live coding, adding OpenGL Rendering to SnakeGame (in C).

Live coding of adding OpenGL Rendering to SnakeGame. Source code link here: bitbucket.org/c-code/snakegame/src/master/snakegame_opengl.c For base game, source may be found here: bitbucket.org/c-code/snakegame/src/master/snakegame.c For OpenGL example, source may be found here: bitbucket.org/c-code/snakegame/src/master/glut_polygon.c