How to make a sword strike in Unity 2D?

Question

C++ / C#

How to make the character hit the enemy when pressing a certain button in Unity.

Answer 1

Obviously, write code. Lots of code.
Start with input detection - found in any unity tutorial.

Answer 2

First you need animation, sprite or skeletal - depending on how the character is made. In the AnimationController, you need to allocate a separate state for this animation.
In the Update character script, we check if the button that is responsible for the sword strike is pressed, if so, we start the animation.
There should be enough keywords here to google the details.

Answer 3

Make a hitbox .
I hope it's obvious what it is ( wikipedia ).