TFC Hot or Not

Items and fluids with a measurable temperature are checked against thresholds set in the configuration. Hot items can set the player on fire for a short time while they are held, and a Too Hot warning appears in their tooltip when the feature is enabled. Cold items apply slowness and weakness, which simulates the difficulty of handling freezing objects, and display a Too Cold warning in the same way. Some items without a measurable temperature, such as lava buckets, are still treated as hot through a whitelist, and certain special cases always count as cold.

Insulating items such as mittens, tongs and potholders let a player carry hot or cold items safely, and holding an insulating item in the offhand adds protection scaled to the temperature of the items carried. Temperature also affects durability, so an item that is held for too long eventually breaks, and an insulating item can itself burn or melt away over time. Beyond the whitelist and blacklist tags, the mod defines several mechanics for how players interact with hot, cold and gaseous items and fluids. Item and fluid tags decide which temperature effects apply, so pack makers and addon authors can change this behavior without editing code.

The mod is a Forge and NeoForge addon for TerraFirmaCraft, which it requires along with TFC Registry API. Firmalife is optional. Client and server both need the mod, and it is released under the BSD 2-Clause License, which means it is not open source.