Setting Lives

[deadlyrun123]

Hey guys, I am new to the Alice community, and would like some assistance in my project. I am making a fighter project, similar to dragon ball z; I know how to make event listeners, while loops, and if statements as well as collisions. I am really stuck on setting lives for my character and the villain it is going to fight. I would like to know how to make the lives of a character go down each time a character is punched.