this inspires me to write an article about the practical issues of finding good game developers. the value of the frame delay in physics simulations is complet

this inspires me to write an article about the practical issues of finding good game developers. the value of the frame delay in physics simulations is completely overlooked, something the current generation of popular game engines seem unaware of... it means values for positions remain consistent during a frame. with or without that insight it is eminently possible to work out how something like this works on inspection. the article is thorough, but the stuff it explains is much more fundamental... the detail about projection is good, but the explanation for why it is there is also absent, and the variable naming in the code example is relatively bad for such a short snippet. (a float called 'vel' which once assumes is 'velocity') ... anyway, i should stop complaining and try and explain this stuff better somewhere :)