SnRotatinHeads - SnDevelopment

Decorative rotating, bouncing player heads, item models and animated engine models for lobbies and hubs. Place a textured head, any resource-pack item model, or a ModelEngine / BetterModel model anywhere, give it a DecentHolograms text label, and bind left and right click actions to it. One shared animation task drives every head with client-side interpolation, so hundreds of heads cost almost nothing.

Features

Heads are ItemDisplay entities with an Interaction hitbox: they spin, bounce above their anchor and stay clickable at every point of the bounce.
Per-head texture (base64 textures value or skin URL), size, rotation speed, bounce speed, bounce height and view range in blocks. Every setter applies live, no restart.
Custom models instead of a skull: any item with a custom-model-data or (1.21.2+) item_model selector, typed as <material>[:<selector>] or read straight off the item in your hand with /rh model <id> hand, so an ItemsAdder, Nexo or plain resource-pack item becomes a head. The item display context (ground, fixed, head, ...) is per head, so a model renders with the pivot it was made for.
Animated engine models: /rh model <id> meg:<model> (ModelEngine) or bm:<model> (BetterModel) renders a Blockbench model with bones and animations in place of the skull. It still spins, bounces, carries the label and answers clicks; /rh animation set <id> <name> picks the looping animation.
Bedrock players see bm: models. A BetterModel head rides a real carrier entity (one invisible marker armor stand), which is what lets Nexo's Scaffolding addon bridge it to Bedrock through Geyser. See Configuration for the two consequences: entity cleaners, and view-range being capped by vanilla entity tracking.
Animation sequences: /rh animation add <id> <seconds> <name> plays another animation once every so many seconds on top of the loop (idle all the time, wave every 80s), and the engine falls back to the loop on its own when it ends.
Optional DecentHolograms label per head with any number of lines; the label can follow the bounce, and its height above the head and its line spacing are set per head.
Left and right click action lists in the SnLib [tag] argument syntax: run commands as the player or the console, send messages, play sounds, show titles, and more.
Heads spawn and despawn with their chunks, survive restarts and unclean shutdowns, and reload live with /rotatinheads reload, which also re-reads a hand-edited heads.yml.

Optional integrations

DecentHolograms: text labels above heads. Without it, heads work exactly the same and simply show no label; the plugin tells you so when you add a label line.
PlaceholderAPI: placeholders in messages, in click action payloads and (through DecentHolograms) in label lines. Without it, placeholders are left as typed.
ModelEngine (R4): meg:<model> heads. Without it, such a head stands hitbox-only and appears the moment ModelEngine has the model; the model command refuses meg: while it is absent.
BetterModel (2.2.0 or newer; 3.x needs Java 25 on the server): bm:<model> heads, same behavior when absent.

Links

Source and releases: part of the shared Sn-Releases repo

Features

Heads are ItemDisplay entities with an Interaction hitbox: they spin, bounce above their anchor and stay clickable at every point of the bounce.

Per-head texture (base64 textures value or skin URL), size, rotation speed, bounce speed, bounce height and view range in blocks. Every setter applies live, no restart.

Custom models instead of a skull: any item with a custom-model-data or (1.21.2+) item_model selector, typed as <material>[:<selector>] or read straight off the item in your hand with /rh model <id> hand, so an ItemsAdder, Nexo or plain resource-pack item becomes a head. The item display context (ground, fixed, head, ...) is per head, so a model renders with the pivot it was made for.

Animated engine models: /rh model <id> meg:<model> (ModelEngine) or bm:<model> (BetterModel) renders a Blockbench model with bones and animations in place of the skull. It still spins, bounces, carries the label and answers clicks; /rh animation set <id> <name> picks the looping animation.

Bedrock players see bm: models. A BetterModel head rides a real carrier entity (one invisible marker armor stand), which is what lets Nexo's Scaffolding addon bridge it to Bedrock through Geyser. See Configuration for the two consequences: entity cleaners, and view-range being capped by vanilla entity tracking.

Animation sequences: /rh animation add <id> <seconds> <name> plays another animation once every so many seconds on top of the loop (idle all the time, wave every 80s), and the engine falls back to the loop on its own when it ends.

Optional DecentHolograms label per head with any number of lines; the label can follow the bounce, and its height above the head and its line spacing are set per head.

Left and right click action lists in the SnLib [tag] argument syntax: run commands as the player or the console, send messages, play sounds, show titles, and more.

Heads spawn and despawn with their chunks, survive restarts and unclean shutdowns, and reload live with /rotatinheads reload, which also re-reads a hand-edited heads.yml.

Optional integrations

DecentHolograms: text labels above heads. Without it, heads work exactly the same and simply show no label; the plugin tells you so when you add a label line.

PlaceholderAPI: placeholders in messages, in click action payloads and (through DecentHolograms) in label lines. Without it, placeholders are left as typed.

ModelEngine (R4): meg:<model> heads. Without it, such a head stands hitbox-only and appears the moment ModelEngine has the model; the model command refuses meg: while it is absent.

BetterModel (2.2.0 or newer; 3.x needs Java 25 on the server): bm:<model> heads, same behavior when absent.