PooledEntity

A PooledEntity is a special kind of Entity which is created by a PooledSpawner.

Instead of creating and destroying Entities at runtime, a PooledSpawner generates a fixed amount of PooledEntities at initialization time, and then handles them appropriately when they are deactivated. This pattern is useful for entities with components that are expensive to generate at runtime.

PooledEntities are automatically activated by PooledSpawners when their spawn callback is called.

PooledEntities should be deactivated instead of destroyed. It is an error to destroy a PooledEntity.