another mod idea i am going to show you is kinda complicated. it is.. fur coat+temperature bar!

ok so first you need to find some fur. to get fur, you need to kill a wolf, and it drops 5 pieces of fur.

then, you craft it like this:

Fur Cap:

FFF

FXF

XXX

X=nothing

F=fur

fur Coat:

FXF

FFF

FFF

F=fur

X=nothing

fur pants:

FFF

FXF

FXF

F=fur

X=nothing

fur boots:

XXX

FXF

FXF

F=fur

X=nothing

once you have the fur armor, you will not be cold again! (it wears out as it is used)

now the temperature bar. the bar is added to the top of your screen. in this mod idea there is also seasons. winter, fall, summer, and spring. each season lasts about 15 minecraft days. once you get to the colder seasons, your temperature bar will start to drop. if it gets to all the way cold, then you will gradually start freezing, which leads to death. wearing the fur suit helps you to not freeze.

this would be a cool mod!