I'm creating a game. I want to make it as Angry Bird.

Till now I have done the sling shot with the bird but I don't know how to make the other bird explose.

I need steps and C# scripts in order to:

* When the bird will be shot, if it colliders with the tag Bird EnemyBird, this will be destroyed

* When destroyed add 1 point to the score.

* When there is no more bird show a GUI that says You won. A button that requests the user to repear the game.

Ps: I'm using Unity.