/// <summary>
/// Returns true if there was a change between meta entity and the entity group, false otherwise.
/// If true is returned, it is assumed the metaentity's appearance has changed to reflect the difference (though clients haven't been updated).
/// </summary>
public bool MarkWithDifferences(SceneObjectGroup sceneEntityGroup)
{
SceneObjectPart sceneEntityPart;
SceneObjectPart metaEntityPart;
Diff differences;
bool changed = false;
// Use "UnchangedEntity" to do comparisons because its text, transparency, and other attributes will be just as the user
// had originally saved.
// m_Entity will NOT necessarily be the same entity as the user had saved.
foreach (SceneObjectPart UnchangedPart in m_UnchangedEntity.Parts)
{
//This is the part that we use to show changes.
metaEntityPart = m_Entity.GetLinkNumPart(UnchangedPart.LinkNum);
if (sceneEntityGroup.ContainsPart(UnchangedPart.UUID))
{
sceneEntityPart = sceneEntityGroup.GetChildPart(UnchangedPart.UUID);
differences = Difference.FindDifferences(UnchangedPart, sceneEntityPart);
if (differences != Diff.NONE)
metaEntityPart.Text = "CHANGE: " + differences.ToString();
if (differences != 0)
{
// Root Part that has been modified
if ((differences & Diff.POSITION) > 0)
{
// If the position of any part has changed, make sure the RootPart of the
// meta entity is pointing with a beam particle system
if (m_BeamEntities.ContainsKey(m_UnchangedEntity.RootPart.UUID))
{
m_BeamEntities[m_UnchangedEntity.RootPart.UUID].HideFromAll();
m_BeamEntities.Remove(m_UnchangedEntity.RootPart.UUID);
}
BeamMetaEntity beamGroup = new BeamMetaEntity(m_Entity.Scene,
m_UnchangedEntity.RootPart.GetWorldPosition(),
MetaEntity.TRANSLUCENT,
sceneEntityPart,
new Vector3(0, 0, 254)
);
m_BeamEntities.Add(m_UnchangedEntity.RootPart.UUID, beamGroup);
}
if (m_AuraEntities.ContainsKey(UnchangedPart.UUID))
{
m_AuraEntities[UnchangedPart.UUID].HideFromAll();
m_AuraEntities.Remove(UnchangedPart.UUID);
}
AuraMetaEntity auraGroup = new AuraMetaEntity(m_Entity.Scene,
UnchangedPart.GetWorldPosition(),
MetaEntity.TRANSLUCENT,
new Vector3(0, 0, 254),
UnchangedPart.Scale
);
m_AuraEntities.Add(UnchangedPart.UUID, auraGroup);
SetPartTransparency(metaEntityPart, MetaEntity.TRANSLUCENT);
DiffersFromSceneGroup = true;
}
else // no differences between scene part and meta part
{
if (m_BeamEntities.ContainsKey(m_UnchangedEntity.RootPart.UUID))
{
m_BeamEntities[m_UnchangedEntity.RootPart.UUID].HideFromAll();
m_BeamEntities.Remove(m_UnchangedEntity.RootPart.UUID);
}
if (m_AuraEntities.ContainsKey(UnchangedPart.UUID))
{
m_AuraEntities[UnchangedPart.UUID].HideFromAll();
m_AuraEntities.Remove(UnchangedPart.UUID);
}
SetPartTransparency(metaEntityPart, MetaEntity.NONE);
}
}
else //The entity currently in the scene is missing parts from the metaentity saved, so mark parts red as deleted.
{
if (m_AuraEntities.ContainsKey(UnchangedPart.UUID))
{
m_AuraEntities[UnchangedPart.UUID].HideFromAll();
m_AuraEntities.Remove(UnchangedPart.UUID);
}
AuraMetaEntity auraGroup = new AuraMetaEntity(m_Entity.Scene,
UnchangedPart.GetWorldPosition(),
MetaEntity.TRANSLUCENT,
new Vector3(254, 0, 0),
UnchangedPart.Scale
);
m_AuraEntities.Add(UnchangedPart.UUID, auraGroup);
SetPartTransparency(metaEntityPart, MetaEntity.TRANSLUCENT);
DiffersFromSceneGroup = true;
}
}
return changed;
}