Hi, I want to make a simple 2d action jump ''n run shooter with lan multiplayer support. And I just don''t understand how to implement prediction. Well, I understand that I can predict the new position of a player, if he constantly runs x units per second. With the latency the server can calculate a new sync position for that player. But my player jumps and changes his direction so often. And besides, I don''t really know, who should predict (client, server, both) especially when it comes to drawing bullets and testing if they hit a player...

Customarily the Server calculates collisions (in P2P local calculates collisions, and other peers verify)... but I''m just jumping in to say I want to know about prediction as well.

I''m developing a multiplayer helicopter combat game, and I would like to know how to provide prediction of other player''s movements.

George D. Filiotis

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I would like to know how to provide prediction of other player''s movements.

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Use linear cubic splines for the 3D position, since it is doubtful that helicopters would suddently change trajectory (say, a 90 deg turn at 160mph...). Use splines applied onto quaternions for orientation.

-cb