Scoring System

I am trying to add a score system to my 2.5d space shooter, i have a score system in place, i just have to link it to actually scoring when i hit the enemy ship.
The script has been implemented in mainCamera and is working, just need that connection:)

var score1 : GUIText;
var oneTime;
var KeepScore : float;
var myScore : int = 0;
var myCurScore : int = 0;

function Update ()
{
score1.text = "Score: " + myScore;

if (myScore < myCurScore)
{
	myScore++;
}
if(Input.GetKeyDown("b"))
{
	myCurScore += 100;
}

}

Change if(Input.GetKeyDown(“b”)) to this
if(Input.GetKeyDown(KeyCode.b){
myCurScore += 100;
}