Hunger and Thirst Gui? [closed]

I need to know how to make a glass object break when shot at with a weapon,

But How would I make a GUI for Thirst And Hunger, and how do I control the limit till my thirst shuts down most of my legs, and force my character to slam to the ground and 'walk' or 'crawl' to a certain speed, until I find water.

And how would I make objects swirl around, not like a portal, but like move around.

MAIN PROBLEM ; HOW DO I INSERT OBJECTS INTO MOVING NPC'S without making them trip/fall.