Stress Ball

Stress Ball is a Forge mod for Minecraft 1.12.2 that adds two auto-attacking baubles, inspired by Terraria. When the wearer stands still for half a second, the bauble performs a left-click attack, and the check also holds while a GUI such as an inventory, a chest or a crafting table is open. Movement resets the timer, and a brief cooldown follows each stop, so attacks do not fire the instant the player moves. The attack range is fixed at 3 blocks, the same as the default player reach.

The mod is built on the Baubles mod, which both items require. Its shapeless recipes can be viewed in-game with JEI. The extra baubles Stress Ball upgrades toward are named Pressure Ball, and the configuration file includes an item blacklist and an entity blacklist, so a held blacklisted item does not trigger automatic attacks and item frames, paintings or armor stands are not struck by accident. The attack trigger can be changed to a right-click action for specific items, which enables attacks from modded weapons such as shurikens, spectres and laser guns.

Stress Ball runs on client and server, so both the server and every player need it. It is published for Forge only, for 1.12.2, and the code is open source under the MIT License.