Environment Bar
A blockhead's environment bar shows how the world around it affects the character.
Effects
Weather can affect a blockhead's environment. During rain or snow, a blockhead can become cold or wet. At night, in an unlit cave, or in any other dark place, the environment bar will go down. When any of those things are happening a blockhead will either want shelter or more light. When the environment bar goes down, a blockhead's happiness bar does as well, which slows down a blockhead's actions, such as crafting and mining. It may also block full recovery of energy when sleeping without a bed.
Trivia
When a blockhead is cold, he will begin to shiver. This is only apparent when the blockhead is idle, sleeping or meditating.
When a blockhead is hot, it will emit smoke and eventually begin suffering a loss of health.