// Should be called often to ensure we catch if selected Particle System is dragged in/out of root hierarchy
public bool InitializeIfNeeded(IEnumerable <ParticleSystem> systems)
{
bool anyAdded = false;
ParticleSystem[] allSystems = systems.ToArray();
bool usingMultiEdit = (allSystems.Count() > 1);
bool initializeRequired = false;
ParticleSystem mainSystem = null;
foreach (ParticleSystem shuriken in allSystems)
{
ParticleSystem[] shurikens;
if (!usingMultiEdit)
{
ParticleSystem root = ParticleSystemEditorUtils.GetRoot(shuriken);
if (root == null)
{
continue;
}
shurikens = GetParticleSystems(root);
mainSystem = root;
// Check if we need to re-initialize?
if (m_SelectedParticleSystems != null && m_SelectedParticleSystems.Count > 0)
{
if (root == ParticleSystemEditorUtils.GetRoot(m_SelectedParticleSystems[0]))
{
if (m_ParticleSystemCurveEditor != null && m_Emitters != null && shurikens.Length == m_Emitters.Length && shuriken.gameObject.activeInHierarchy == m_EmittersActiveInHierarchy)
{
m_SelectedParticleSystems = new List <ParticleSystem>();
m_SelectedParticleSystems.Add(shuriken);
if (IsShowOnlySelectedMode())
{
RefreshShowOnlySelected(); // always refresh
}
continue;
}
}
}
}
else
{
// in multi-edit mode, we explicitly choose the systems to edit, so don't automatically add child systems or search for the root
shurikens = new ParticleSystem[] { shuriken };
mainSystem = shuriken;
}
// Cleanup before initializing
if (m_ParticleSystemCurveEditor != null)
{
Clear();
}
// Now initialize
initializeRequired = true;
if (!anyAdded)
{
m_SelectedParticleSystems = new List <ParticleSystem>();
anyAdded = true;
}
m_SelectedParticleSystems.Add(shuriken);
// Single edit emitter setup
if (!usingMultiEdit)
{
// Init CurveEditor before modules (they may add curves during construction)
m_ParticleSystemCurveEditor = new ParticleSystemCurveEditor();
m_ParticleSystemCurveEditor.Init();
int numEmitters = shurikens.Length;
if (numEmitters > 0)
{
m_Emitters = new ParticleSystemUI[numEmitters];
for (int i = 0; i < numEmitters; ++i)
{
m_Emitters[i] = new ParticleSystemUI();
m_Emitters[i].Init(this, new ParticleSystem[] { shurikens[i] });
}
m_EmittersActiveInHierarchy = shuriken.gameObject.activeInHierarchy;
}
}
}
if (initializeRequired)
{
// Multi-edit emitter setup
if (usingMultiEdit)
{
// Init CurveEditor before modules (they may add curves during construction)
m_ParticleSystemCurveEditor = new ParticleSystemCurveEditor();
m_ParticleSystemCurveEditor.Init();
int numEmitters = m_SelectedParticleSystems.Count;
if (numEmitters > 0)
{
m_Emitters = new ParticleSystemUI[1];
m_Emitters[0] = new ParticleSystemUI();
m_Emitters[0].Init(this, m_SelectedParticleSystems.ToArray());
m_EmittersActiveInHierarchy = m_SelectedParticleSystems[0].gameObject.activeInHierarchy;
}
}
// Allow modules to validate their state (the user can have moved emitters around in the hierarchy)
foreach (ParticleSystemUI e in m_Emitters)
{
foreach (ModuleUI m in e.m_Modules)
{
if (m != null)
{
m.Validate();
}
}
}
// Sync to state
if (GetAllModulesVisible())
{
SetAllModulesVisible(true);
}
m_EmitterAreaWidth = EditorPrefs.GetFloat("ParticleSystemEmitterAreaWidth", k_MinEmitterAreaSize.x);
m_CurveEditorAreaHeight = EditorPrefs.GetFloat("ParticleSystemCurveEditorAreaHeight", k_MinCurveAreaSize.y);
// For now only allow ShowOnlySelectedMode for ParticleSystemWindow
SetShowOnlySelectedMode((m_Owner is ParticleSystemWindow) ? SessionState.GetBool(k_ShowSelectedId + mainSystem.GetInstanceID(), false) : false);
m_EmitterAreaScrollPos.x = SessionState.GetFloat("CurrentEmitterAreaScroll", 0.0f);
if (ShouldManagePlaybackState(mainSystem))
{
// Restore lastPlayBackTime if available in session cache
Vector3 simulationState = SessionState.GetVector3(k_SimulationStateId + mainSystem.GetInstanceID(), Vector3.zero);
if (mainSystem.GetInstanceID() == (int)simulationState.x)
{
float lastPlayBackTime = simulationState.z;
if (lastPlayBackTime > 0f)
{
ParticleSystemEditorUtils.playbackTime = lastPlayBackTime;
ParticleSystemEditorUtils.PerformCompleteResimulation();
}
}
// Play when selecting a new particle effect
if (m_MainPlaybackSystem != mainSystem)
{
Play();
}
}
}
m_MainPlaybackSystem = mainSystem;
return(initializeRequired);
}
