如何通过GetComponent从另一个游戏对象中的另一个脚本访问变量

我到处找了找，就是找不到。我想我只是不知道正确的语法，或者只是没有完全理解上下文。

我有一个BombDrop脚本，它包含一个公共int。我用它来处理公共静态，但有人说这是一个非常糟糕的编程习惯，我应该学习封装。这是我写的：

BombDrop脚本：

 <!-- language: c# -->
 public class BombDrop : MonoBehaviour {
 public GameObject BombPrefab;
 //Bombs that the player can drop
 public int maxBombs = 1;

 // Update is called once per frame
 void Update () {
 if (Input.GetKeyDown(KeyCode.Space)){
         if(maxBombs > 0){
         DropBomb();
         //telling in console current bombs
         Debug.Log("maxBombs = " + maxBombs);
         }
   }

 }    
 void DropBomb(){
     // remove one bomb from the current maxBombs
     maxBombs -= 1;
     // spawn bomb prefab
     Vector2 pos = transform.position;
     pos.x = Mathf.Round(pos.x);
     pos.y = Mathf.Round(pos.y);
     Instantiate(BombPrefab, pos, Quaternion.identity);
 }
}

因此，我希望附加到预制名称对象Bombpremab的Bomb脚本访问BombDrop中的maxBombs整数，这样当炸弹被摧毁时，它会在BombDrop中的最大炸弹数上加+1。

这是需要参考的炸弹脚本。

 public class Bomb : MonoBehaviour {
 // Time after which the bomb explodes
 float time = 3.0f;
 // Explosion Prefab
 public GameObject explosion;
 BoxCollider2D collider;
 private BombDrop BombDropScript;


 void Awake (){
     BombDropScript = GetComponent<BombDrop> ();
 }
 void Start () {
     collider = gameObject.GetComponent<BoxCollider2D> ();
     // Call the Explode function after a few seconds
     Invoke("Explode", time);
 }
 void OnTriggerExit2D(Collider2D other){
     collider.isTrigger = false;
 }
 void Explode() {
     // Remove Bomb from game
     Destroy(gameObject);
     // When bomb is destroyed add 1 to the max 
     // number of bombs you can drop simultaneously .
     BombDropScript.maxBombs += 1;
     // Spawn Explosion
     Instantiate(explosion,
                 transform.position,
                 Quaternion.identity);

在文件中，它说它应该是类似的东西

BombDropScript = otherGameObject.GetComponent<BombDrop>();

但这行不通。也许我只是不懂这里的语法。它是说otherGameObject吗？因为那没有任何作用。我仍然得到错误："Object reference not set do an instance of a Object"在我的BombDropScript.maxBombs down in the explode（）

 GameObject g = GameObject.Find("GameObject Name");

 BombDrop bScript = g.GetComponent<BombDrop>();

 bScript.foo();

public class BombDrop : MonoBehaviour
{
    public void setMaxBombs(int amount)
    {
        maxBombs += amount;
    }
    public int getMaxBombs()
    {
        return maxBombs;
    }
}

void Start () {
     BombDropScript =gameObject.GetComponent<BombDrop> ();
     collider = gameObject.GetComponent<BoxCollider2D> ();
     // Call the Explode function after a few seconds
     Invoke("Explode", time);
 }
void Explode() {
//..
  //..
//at last
Destroy(gameObject);
 }

 public gameObject another;
void Start () {
     BombDropScript =another.GetComponent<BombDrop> ();
}

entBombDropScript.maxBombs += 1;

Destroy(gameObject);