Game Engine Update

gistfile1.nim

# engine.nim

proc update* =
  Time.update()
  Input.update() # update input every cycle (raw input)
  GameParts.rawUpdate() # respond to input changes (often minimal, if needed at all)

  if Time.elapsed >= Time.fixedStep:
    Physics.update() # either unique thread, or uses thread pool
  
  if Physics.isDone: # awaits physics
    GameParts.fixedUpdate() # sometimes this is also threaded, which complicates things a bit more
    Physics.reset()
  
  if Canvas.isReady: # GPU synced
    Animation.update() # samples from animations (sometimes threaded, but not sure best practice here)
    GameParts.update() # most game-code goes here (ditto)
    Canvas.update() # renders screen