Interpolation, Extrapolation - My life is still moving around...
I needed a good interpolation system for my cars in the mmo world. I tried a few in the internet but nothing served its purpose. The logic used server time and current network time to figure out how old the packets were to based on which it would interpolate or extrapolate or simply snap. For most part the logic worked fine and so I don't blame all the wonderful articles I found in the internet. The problem I had was lag, frequent snapping, and sometimes slow and quick acceleration of the car. There wasn't a smooth movement. It would move smooth as long as the packets arrived fine and once they delay it would begin doing all crazy things. After dumping all logs it was evident that the problem was with the packets arriving very late. This is because over the wire through UDP there were lots of packets being dropped. This means on a high speed racing game where I collect and do a lot of things I definitely have a great deal of this loss and this magnifies where there are mo...