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;
 }
 
 

}