Persistent sets, hollow shapes and status bar textures

This is Apoli 1.116.0 and Origins 1.47.9, on Fabric 1.20.1, Fabric 1.21.1 and NeoForge 1.21.1. Update both sides together, since a client and a server on different builds can't connect.

Persistent entity sets

apoli:entity_set has a new persistent option. A persistent set keeps its members when they die or log out, stays on the server while its owner is offline, and is saved with the world, so it comes back after a restart. The only ways out are apoli:remove_from_entity_set, a time_limit, or revoking the power. That makes a permanent link between players a single power, instead of a set mirrored into command tags.

Normal sets keep their behaviour, with one change: a set owned by a mob is now deleted when that mob dies, instead of staying in memory until the server stops. Sets also no longer carry over from one singleplayer world into the next.

Offline players in set actions

apoli:action_on_entity_set has include_offline. With it, a member or owner who is offline is visited as an offline copy loaded from their saved data, so a member can check conditions against an owner who is away, or leave their set. apoli:online is a new name you can use for apoli:exists, which is false for an offline copy.

Hollow shapes

Every shape has a hollow version, cube_hollow, sphere_hollow, star_hollow and cone_hollow, and everything that takes a shape takes a hollow_thickness (a number or an expression, 1 by default). A block apoli:area_of_effect with sphere_hollow builds a sealed dome, and apoli:entity_in_radius with it counts the entities in a ring around you.

Acting when a key is released

apoli:action_on_key_press has entity_action_released, which runs when the key comes back up after a press. While it runs, the expression variable held_ticks is how long the key was held, so a charged ability is one power.

Paying for skills with items

A skill's cost can now ask for items as well as points, as in {"points": 20, "item": "minecraft:dirt", "count": 2}, or an items list with an optional item_condition on each. A refund gives back exactly what was paid. See Paying with items.

Power tags in the power conditions

apoli:power and apoli:power_active take tags, the same free-form labels that suppress_power and transfer already understand. "Has any power tagged mypack.flight" no longer needs a list of every flight power.

Status bar textures

apoli:status_bar_texture replaces the status bar textures (health, hunger, armor, air, experience and the rest) from a sprite sheet in the classic icons.png layout, from a texture_map of sprite names, or both. Sheets made for Apace's Apoli work as they are. Several powers combine by priority, sprite by sprite, so one can restyle the hearts while another restyles the hunger bar, and the same sprite names work on 1.20.1 and 1.21.1.