Quakeworld was my entry point into wanting to program. BSP, VIS, DISP, oh yeah. I remember trying to figure out the math for projectiles and the various splash damage routines.

I remember bunnyhopping and attempting to figure out the glitch to alter the effect even more on sharper turns.

So many 'wasted years' that resulted in a wonderful career and field of study. I emailed John a few times throughout the years. He was the most courteous and honest person I have ever met. One of the replies from Carmack went along the lines of, 'Yeah, those models are our IP. If your community is small and the growth is not going to explode, feel free to use them. Just do not brag about it on your website. Our lawyers are not hunting for people, unless they wish to be seen.'