Описание
# Mana Attributes
This API adds a mana system controlled by entity attributes.
## Default implementation
LivingEntities can have up to **_manaattributes:max_mana_** amounts of mana. Mana is regenerated by **_manaattributes:mana_regeneration_** every **_manaattributes:mana_tick_threshold_** ticks.
When mana is reduced, regeneration is stopped for **_manaattributes:mana_regeneration_delay_threshold_** ticks.
When mana is