Of course if you want your game to update its state at a rate faster than the slowest ping time of the connected client then you've got problems. On LAN play you can get away with this, but over the Internet it's not as workable, especially if some players are on modem.
I remember one game that has crossplay between Linux and Windows brought down by a scheme like this, because it turns out that Linux and Windows default floating point libraries had slightly different rounding behavior, and eventually the pathfinding algorithm would zig on the Windows hosts and zag on the Linux hosts and desync the clients.
I remember one game that has crossplay between Linux and Windows brought down by a scheme like this, because it turns out that Linux and Windows default floating point libraries had slightly different rounding behavior, and eventually the pathfinding algorithm would zig on the Windows hosts and zag on the Linux hosts and desync the clients.