public void SeedIteratedByChangingEitherBaseSeedOrIndex()
{
// Check if changing the index changes the generated random state
var iteratedIndex1 = SamplerUtility.IterateSeed(0, 0);
var iteratedIndex2 = SamplerUtility.IterateSeed(1, 0);
Assert.AreNotEqual(iteratedIndex1, iteratedIndex2);
// Check if changing the seed changes the generated random state
var iteratedSeed1 = SamplerUtility.IterateSeed(0, 0);
var iteratedSeed2 = SamplerUtility.IterateSeed(0, 1);
Assert.AreNotEqual(iteratedSeed1, iteratedSeed2);
}
void Update()
{
// TODO: remove this check when the perception camera can capture the first frame of output
if (m_SkipFrame)
{
m_SkipFrame = false;
return;
}
// Wait for any final uploads before exiting quitting
if (m_WaitingForFinalUploads && quitOnComplete)
{
Manager.Instance.Shutdown();
if (!Manager.FinalUploadsDone)
{
return;
}
#if UNITY_EDITOR
UnityEditor.EditorApplication.ExitPlaymode();
#else
Application.Quit();
#endif
return;
}
// Iterate Scenario
if (m_FirstScenarioFrame)
{
m_FirstScenarioFrame = false;
}
else
{
currentIterationFrame++;
framesSinceInitialization++;
if (isIterationComplete)
{
IncrementIteration();
currentIterationFrame = 0;
foreach (var randomizer in activeRandomizers)
{
randomizer.IterationEnd();
}
}
}
// Quit if scenario is complete
if (isScenarioComplete)
{
foreach (var randomizer in activeRandomizers)
{
randomizer.ScenarioComplete();
}
DatasetCapture.ResetSimulation();
m_WaitingForFinalUploads = true;
return;
}
// Perform new iteration tasks
if (currentIterationFrame == 0)
{
DatasetCapture.StartNewSequence();
SamplerState.randomState = SamplerUtility.IterateSeed((uint)currentIteration, genericConstants.randomSeed);
DatasetCapture.ReportMetric(m_IterationMetricDefinition, new[]
{
new IterationMetricData()
{
iteration = currentIteration
}
});
foreach (var randomizer in activeRandomizers)
{
randomizer.IterationStart();
}
}
// Perform new frame tasks
foreach (var randomizer in activeRandomizers)
{
randomizer.Update();
}
}
/// <summary>
/// Resets SamplerState.randomState with a new seed value generated by hashing this Scenario's randomSeed
/// with its currentIteration
/// </summary>
protected virtual void ResetRandomStateOnIteration()
{
SamplerState.randomState = SamplerUtility.IterateSeed((uint)currentIteration, genericConstants.randomSeed);
}