BombFish.cs

public class BombFish : MonoBehaviour
{

    public enum State { Enter, Attack, Exit };
    public State currentState;
    private EnemyController EC;

    public enum DropStrategy { DropOnPlayer, DropOnDestination, DropXCoordinate }
    public DropStrategy Drop;

    public float XTarget = 0f;

	private Bomb ourBomb;
    private Transform PlayerTransform;


	void Awake () 
	{
		EC = GetComponent<EnemyController>();
		ourBomb = GetComponentInChildren<Bomb>();
		currentState = State.Enter;

        	PlayerTransform = GameObject.FindGameObjectWithTag("Player").transform;
    }
	

	void Update () 
	{
		switch (currentState)
		{
			case State.Enter:
				EnterUpdate();
				break;
			case State.Attack:
				AttackUpdate();
				break;
			case State.Exit:
				ExitUpdate();
				break;
			default:
				break;
		}
	}

    private void ExitUpdate()
    {
        // Just keep swimming
    }

    private void AttackUpdate()
    {
        DropBomb();
		currentState = State.Exit;
    }

    private void EnterUpdate()
    {
        switch (Drop)
        {
            case DropStrategy.DropOnPlayer:
                if (Mathf.Abs(PlayerTransform.position.x - transform.position.x) < .5f)
		{
			currentState = State.Attack;
		}
                break;
            case DropStrategy.DropXCoordinate:
                if (Mathf.Abs(XTarget - transform.position.x) < .5f)
		{
			currentState = State.Attack;
		}
                break;
            default:
                // Drop Destination
                if (EC.atDestinationX && EC.atDestinationY)
		{
			currentState = State.Attack;
		}
                break;
        }
    }

    private void DropBomb()
    {
        ourBomb.ActivateBomb();

	int xVector = 0;
	if (transform.localScale.x < 0)
	{
		xVector = -1;
	}
	else 
	{
		xVector = 1;
	}
	EC.SetMovementVector(xVector, 0);
	currentState = State.Exit;
    }
}