[New to Unity] Dealing DMG

Hello!
I am still quite new to programming with Unity - or programing at all.
I have the following problem:
For a little game i make i want to have a bullet and enemys. Enemys have HP and the bullet has an amount of DMG. Now i want to access the enemy`s life from my bullet script.
Pseudocode should look like:

OnCollisionEnter2D()
{
if (hit is an enemy)
enemy.life -= DMG
Destroy(gameobject)
}


so what i want to do is to access the enemys life from the bullet. My problem is, i don`t know how. Also there should be multiple enemys of the same type, so the dmg should only be applied to the enemy hit, i`ve had a similiar case with something else where a script affected all object of the same type.

Can someone help? I am coding in C#

 

Code (CSharp):

1. private void OnCollisionEnter2D(Collision2D collision)
2. {
3. // good idea to check for a tag here, and skip mindless code execution if the tag differs.
4. var enemy = collision.collider.gameObject.GetComponent<Enemy>();
5. var dmg = 5f;
6. if(enemy != null)
7.     {
8.     enemy.health -= dmg
9.     }
10. }

this is assuming the enemy hit actually has "Enemy.cs" script attached, with health value to reduce.

 

Perfect! Ty. Guess this showed me how to access any Component as well =P