It is unlawful for any person to commit an assault or battery, or to fight in any public place in the city. For purposes hereof, the definition of assault recited in 720 ILCS 5/12-1, as approved, adopted and amended shall apply hereto; and, for purposes hereof, the definition of battery contained in 720 ILCS 5/12-3, as adopted, approved and amended shall apply hereto. (Amended during 1997 codification; prior code § 27-3-1)