TFC Ambiental

Ever wanted to make TerraFirmaCraft have those nice feelings of coming home to a warm fireplace after a long cold night or maybe the relaxing feeling of finding an oasis in the desert and cooling yourself in it? Well this is the mod for you. It adds a body temperature system and some ambiental tweaks to the world to go with it.

This version is based on the incremental updates to TFC Ambiental by LobsterJohn for 1.20.1. That version, updated and maintained by him:
https://legacy.curseforge.com/minecraft/mc-mods/tfc-ambiental-second-edition

TerraFirmaCraft and Curios are required dependencies.

The 1.18.2 update brings clothes, less harsh balancing and reworked indoors detection
The 2.2 mod update brings grass noise coloring and seasonal foliage/grass coloring, take a look at screenshots. Fully configurable

This mod will keep you on your toes figuring out how to cool/heat yourself properly but without the constant pain of similar mods.
The default TFC blocks and environmental systems are implemented. 
Configurable, but not able to add custom block/item modifiers without access to the Java API. TFC has a delicate environment with finite fuels etc so custom modifiers should be added in a more involved fashion.

How to use the mod? Here you go

General:

Basic: Stay between 0 and 30 degrees, as close to 15 as possible. Keep you temperature arrow as white as possible.
Potency: The speed at which you lose/gain heat is affected by the blocks around, the humidity etc. The potency is lowered the closer you are to the target temperature.
Modifiers - Everything in the mod has a modifier that has a heat value (positive or negative) and a potency value affecting how fast their heat changes your temperature.
Environment - Areas in TFC have their own temperature based on season and location. Low potency but based on humidity.
Weather - Being out in the weather will bring your temperature down rapidly, but even when inside during a storm there is a temperature decrease. Medium potency added
Time of day - The temperature is higher during the day, lower during the morning and the evening, and cold during the night. Zero potency added.
Liquids - Water cools you off and spring water (or lava if you are desperate) will heat you up. Very high potency added.

Shade - A roof over your head in the scorching sun will do wonders, a helmet of any sort will also help protect you from direct sunlight. Moderate insulation.
Health - Being hydrated helps with the heat and being well fed helps with the cold. No insulation
Diet - Fruits and veggies help with the summers' heat while meats and grains help with winter's cold. No insulation.
Underground - The temperature in mines right below the surface is rather cold but gets warmer the deeper you go. Low potency added
Fires - Different sources of heat such as fire pits and forges can help you with the cold. They are more effective the closer you are to them. No potency added.
Items - Items that are heated in TFC devices like ingots or pottery will also heat you up. Small potency added
Clothes (NEW) - You have wool and leather clothes to warm you up and Silk/Burlap clothes to cool you down, different levels of insulation.

When it is Hot Outside:

Shade - Sit under a tree or under a roof. Those sun rays will burn you up.
Thirst - Make sure to be well hydrated so that you can beat the heat naturally.
Hat - Have a hat of any kind on your head to block the sun if you are outside. (the best early game option is the straw hat)
Water - If there is an emergency, find some cold water and jump in it to cool yourself quickly before going back in the sun.
Diet - Eating lots of fruits and vegetables during the hotter seasons improves your ability to cool yourself passively.
Cellar - Try to do your at-home business in a place underground below y = 135 while the sun is up.
Work - Try not to sprint all the time, keep away from forges or craft yourself an apron when working with hot devices.
Nocturnal - If you are going exploring, do it in the evening or in the morning when the sun isn't as powerful. Make sure to get plenty of water, fruits and a helmet!
Altitude - The temperature is lower the higher you are, so if you live in a tropical or hot area, try to build your home on a hill or mountain.

When it is Cold Outside:

Cozy - Have a nice home or shelter with a well build roof and plenty of light to not feel the cold when inside. (See picture below for indicator)
Clothes - Make sure to get yourself some wool/leather clothes by fall's end or it will be hard for you (leather is much easier to obtain, but wool keeps you warmer).
Food - Keep well fed to heat yourself naturally.
Diet - Eating lots of grain and meat during the colder seasons improves your ability to heat yourself passively.
Fire - Different fire sources will heat you up: fire, fire pits, charcoal forges, bloomeries, lamps - all only when on, with fuel and heated up. They are more effective indoors.
Hot Springs - In case of emergencies or for relaxation, hop in the TFC hot springs to heat yourself up. Find a natural spring and build yourself a sauna ;)
Snow - Make sure to plow the snow around your house if it's getting too cold to manage.
Items - If you are going outside, one thing you can do is keep a few hot ingots in your inventory to help you for a short while.
Diurnal - If you are going exploring, do it in during the day when the sun is powerful. Make sure to get plenty of bread, meat and armor!
Altitude - The temperature is lower the higher you are, so if you live in a tundra or freezing cold area, try to build your home on sea level, mountain tops are dangerous in winter.

When this icon is displayed, it means you're inside

Clothes:

Insulated leather - Made from leather armor and string, best choice for your first winter set
Wool - Made from wool cloth, which is harder to obtain in larger quantities, is a strong but expensive winter set
Silk - Made from silk cloth, made from spider silk string, cools you down and provides some insulation
Burlap - Made from burlap cloth, made from jute fiber, cools you down less than the silk counterpart, but insulates better

Waiting for your feedback and suggestions!