Dead Reckoning

Filip Haužvicrequested to merge
xhauzvic/dead-reckoning into main

Create DeadReckoning struct that handles extrapolation. The public api is very similar as it was in interpolation, where a replicated property can be registered to use dead reckoning by calling register_property of the DeadReckoningSystem accessible through the index function.

DeadReckoning

  • Instanced for each extrapolated property
  • Holds the extrapolation function and the maximum extrapolation time
  • Performs the extrapolation
  • Handles state discrepancy by interpolating to server state if the states diverge enough

DeadReckoningSystem

  • public interface to be used by programmers
  • Tracks extrapolated properties and updates them with extrapolated values each frame

reflection_distance Helper function in the utils namespace that returns a distance between two reflection values. Used in DeadReckoning to decide if it should perform correction (dead_reckoning.cpp:17). This will also be useful for client-side prediction, where I will compare state difference (or distance) in the same way I in dead reckoning.

Interpolation

  • Can now extrapolate when it runs out of snapshots
  • Extrapolation is enabled by providing extrapolation function

InterpolationSystem

  • Added api functions that enable programmer to assign extrapolation functions to interpolated properties (which also enables extrapolation on the given property)

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