Case when an entity is created as child of other entity or entities, e.g., cows making a cow or slimes making smaller slimes after dying.
Case when an entity is created by an event, e.g., a Wandering trader spawning llamas.
Case when an entity is loaded into the world.
Case when an entity is naturally spawned in the world.
Case when an entity is transformed into another entity.
An enumeration describing initialization cause of an entity.