Happiness Bar
A blockhead's happiness bar shows the speed of a blockhead. It is calculated according to hunger, environment, energy, and health bars. When its happiness bar lowers so does the speed of the blockhead. By keeping its happiness bar at maximum a blockhead will be able to travel faster, craft quicker, and mine faster.
Unless a Blockhead is wearing the sunset skirt of happiness, a Blockhead's happiness bar will not be higher than its health bar, so if all bars are at maximum except happiness, it might be a good idea to check to see if the health bar was overlooked.
Picture
1. The Blockhead's health bar
2. The Blockhead's happiness
3. The Blockhead's hunger
4. The Blockhead's energy
5. The Blockhead's happiness to the environment around them
6. The Blockhead's status bar (You are doing well if is says '... is very happy!)
7. Bar to teleport a workbench in for fifty Time Crystals
8. Tap and the Blockhead will start Meditating
9. Tap when the Blockhead is tired and they will start to sleep on the floor
Method
To keep a Blockhead's happiness up, the Blockhead must be fed, well rested, be around a 'good' environment and have its health up. One can satisfy these sections by doing the following things:
Hunger - Feed the Blockhead any type of edible food.
Energy - Let the Blockhead rest when exhausted (Not only is sleeping in beds faster, but the Blockhead gains an extra bonus yellow bar, to show that the Blockhead's energy has not depleted yet).
Environment - If possible, let the Blockhead wear armo(u)r outside when dark and keep the area the Blockhead is living in / exploring bright with torches, campfires etc.
Health - Same as hunger.