Here is the penal law on harrassment and assault. There is no separate penal code for battery although the definition of battery is unwanted touching. There are however various degrees of assault as well as harrassment. § 240.25 Harassment in the first degree.
A person is guilty of harassment in the first degree when he or she
intentionally and repeatedly harasses another person by following such
person in or about a public place or places or by engaging in a course
of conduct or by repeatedly committing acts which places such person in
reasonable fear of physical injury.
Harassment in the first degree is a class B misdemeanor.
§ 240.26 Harassment in the second degree.
A person is guilty of harassment in the second degree when, with
intent to harass, annoy or alarm another person:
1. He or she strikes, shoves, kicks or otherwise subjects such other
person to physical contact, or attempts or threatens to do the same; or
2. He or she follows a person in or about a public place or places; or
3. He or she engages in a course of conduct or repeatedly commits acts
which alarm or seriously annoy such other person and which serve no
legitimate purpose.
Harassment in the second degree is a violation.
Compared to Assault
§ 120.10 Assault in the first degree.
A person is guilty of assault in the first degree when:
1. With intent to cause serious physical injury to another person, he
causes such injury to such person or to a third person by means of a
deadly weapon or a dangerous instrument; or
2. With intent to disfigure another person seriously and permanently,
or to destroy, amputate or disable permanently a member or organ of his
body, he causes such injury to such person or to a third person; or
3. Under circumstances evincing a depraved indifference to human life,
he recklessly engages in conduct which creates a grave risk of death to
another person, and thereby causes serious physical injury to another
person; or
4. In the course of and in furtherance of the commission or attempted
commission of a felony or of immediate flight therefrom, he, or another
participant if there be any, causes serious physical injury to a person
other than one of the participants.
Assault in the first degree is a class B felony.
§ 120.05 Assault in the second degree.
A person is guilty of assault in the second degree when:
1. With intent to cause serious physical injury to another person, he
causes such injury to such person or to a third person; or
2. With intent to cause physical injury to another person, he causes
such injury to such person or to a third person by means of a deadly
weapon or a dangerous instrument; or
3. With intent to prevent a peace officer, a police officer,
registered nurse, licensed practical nurse, sanitation enforcement
agent, New York city sanitation worker, a firefighter, including a
firefighter acting as a paramedic or emergency medical technician
administering first aid in the course of performance of duty as such
firefighter, an emergency medical service paramedic or emergency medical
service technician, or medical or related personnel in a hospital
emergency department, a city marshal, a traffic enforcement officer or
traffic enforcement agent, from performing a lawful duty, by means
including releasing or failing to control an animal under circumstances
evincing the actor's intent that the animal obstruct the lawful activity
of such peace officer, police officer, registered nurse, licensed
practical nurse, sanitation enforcement agent, New York city sanitation
worker, firefighter, paramedic, technician, city marshal, traffic
enforcement officer or traffic enforcement agent, he or she causes
physical injury to such peace officer, police officer, registered nurse,
licensed practical nurse, sanitation enforcement agent, New York city
sanitation worker, firefighter, paramedic, technician or medical or
related personnel in a hospital emergency department, city marshal,
traffic enforcement officer or traffic enforcement agent; or
3-a. With intent to prevent an employee of a local social services
district directly involved in investigation of or response to alleged
abuse or neglect of a child, a vulnerable elderly person or an
incompetent or physically disabled person, from performing such
investigation or response, the actor, not being such child, vulnerable
elderly person or incompetent or physically disabled person, or with
intent to prevent an employee of a local social services district
directly involved in providing public assistance and care from
performing his or her job, causes physical injury to such employee
including by means of releasing or failing to control an animal under
circumstances evincing the actor's intent that the animal obstruct the
lawful activities of such employee; or
4. He recklessly causes serious physical injury to another person by
means of a deadly weapon or a dangerous instrument; or
* 4-a. He recklessly causes physical injury to another person who is a
child under the age of eighteen by intentional discharge of a firearm,
rifle or shotgun; or
* NB Effective March 16, 2013
5. For a purpose other than lawful medical or therapeutic treatment,
he intentionally causes stupor, unconsciousness or other physical
impairment or injury to another person by administering to him, without
his consent, a drug, substance or preparation capable of producing the
same; or
6. In the course of and in furtherance of the commission or attempted
commission of a felony, other than a felony defined in article one
hundred thirty which requires corroboration for conviction, or of
immediate flight therefrom, he, or another participant if there be any,
causes physical injury to a person other than one of the participants;
or
7. Having been charged with or convicted of a crime and while confined
in a correctional facility, as defined in subdivision three of section
forty of the correction law, pursuant to such charge or conviction, with
intent to cause physical injury to another person, he causes such injury
to such person or to a third person; or
8. Being eighteen years old or more and with intent to cause physical
injury to a person less than eleven years old, the defendant recklessly
causes serious physical injury to such person; or
9. Being eighteen years old or more and with intent to cause physical
injury to a person less than seven years old, the defendant causes such
injury to such person; or
10. Acting at a place the person knows, or reasonably should know, is
on school grounds and with intent to cause physical injury, he or she:
a. causes such injury to an employee of a school or public school
district; or
b. not being a student of such school or public school district, causes physical injury to another, and such other person is a student of
such school who is attending or present for educational purposes. For
purposes of this subdivision the term "school grounds" shall have the
meaning set forth in subdivision fourteen of section 220.00 of this
chapter.
11. With intent to cause physical injury to a train operator, ticket
inspector, conductor, signalperson, bus operator or station agent
employed by any transit agency, authority or company, public or private,
whose operation is authorized by New York state or any of its political
subdivisions, a city marshal, a traffic enforcement officer, traffic
enforcement agent, sanitation enforcement agent, New York city
sanitation worker, registered nurse or licensed practical nurse he or
she causes physical injury to such train operator, ticket inspector,
conductor, signalperson, bus operator or station agent, city marshal,
traffic enforcement officer, traffic enforcement agent, registered nurse
or licensed practical nurse, sanitation enforcement agent or New York
city sanitation worker, while such employee is performing an assigned
duty on, or directly related to, the operation of a train or bus, or
such city marshal, traffic enforcement officer, traffic enforcement
agent, registered nurse or licensed practical nurse, sanitation
enforcement agent or New York city sanitation worker, is performing an
assigned duty.
11-a. With intent to cause physical injury to an employee of a local
social services district directly involved in investigation of or
response to alleged abuse or neglect of a child, vulnerable elderly
person or an incompetent or physically disabled person, the actor, not
being such child, vulnerable elderly person or incompetent or physically
disabled person, or with intent to prevent an employee of a local social
services district directly involved in providing public assistance and
care from performing his or her job, causes physical injury to such
employee; or
12. With intent to cause physical injury to a person who is sixty-five
years of age or older, he or she causes such injury to such person, and
the actor is more than ten years younger than such person.
Assault in the second degree is a class D felony.
§ 120.00 Assault in the third degree.
A person is guilty of assault in the third degree when:
1. With intent to cause physical injury to another person, he causes
such injury to such person or to a third person; or
2. He recklessly causes physical injury to another person; or
3. With criminal negligence, he causes physical injury to another
person by means of a deadly weapon or a dangerous instrument.
Assault in the third degree is a class A misdemeanor.
I found this video on Youtube earlier which had nothing to do with gun control, at least I didn't think so until I got to 1:52 into the video. Apparently Australians use "long stabby things" and "golf clubs" to defend themselves against home invasions . . . Skip to 1:52 in the video.