Adding damage in collisons

Bigman

I am making my first platformer and am stuck on the health system. I don't know how to take damage on collisions with enemies. Here is my simple code

1. if (Input.GetKeyDown(KeyCode.E))
2. {
3. takeDamage(20);
4. }
5. 
   
6. void takeDamage(int damage)
7. {
8. currentHealth = currentHealth - damage;
9. healthBar.setHealth(currentHealth);
10. }

This is all in the update function.

All I need to do is replace the press of the E button with a collision with any object with the tag "enemy" also what would be very helpful is if there was a 1 second delay before you could take damage again, so you know, it doesn't drain your health in a split second

Thanks a lot in advance :)

Mesmeric_Development

bool vulnerable = true;

public int invunerbleTime;

void On CollisionEnter(Collision c)

{

if (c.gameObject.tag == "enemy " && vulnerable = true)

{

takeDamage(20);

startcoroutine(countdown(invunerbleTime));

}

}

IEnumerator countdown(int i)

{

vulnerable = false;

yield return new WaitForSeconds(i);

vulnerable = true;

}