 is called from <a href="SimulatedArena.html#simulationPeriodic()"><code>SimulatedArena.simulationPeriodic()</code></a> to remove the
 <a href="gamepieces/GamePieceOnFieldSimulation.html" title="class in org.ironmaple.simulation.gamepieces"><code>GamePieceOnFieldSimulation</code></a> instances that have been obtained by the intake from the field.

 <p>Game pieces are marked for removal if they have come into contact with the intake during the last
 <a href="SimulatedArena.html#getSimulationSubTicksIn1Period