Animation cookbook trigger attack

https://books.google.com.vn/books?id=2dBtDQAAQBAJ&pg=PA196&lpg=PA196&dq=create+attack+range+for+animation+unity&source=bl&ots=e7ppoesF20&sig=ACfU3U2nJtO6T1M3qGKGMHxaay9AySxa5g&hl=en&sa=X&ved=2ahUKEwju5dSpmbXqAhW-H7cAHY-ZC2cQ6AEwDHoECAoQAQ#v=onepage&q=create%20attack%20range%20for%20animation%20unity&f=false