latest version

Assets/Scripts/Barriar.cs

@@ -2,13 +2,13 @@
 using System.Collections.Generic;
 using UnityEngine;
 
-public class Barriar : MonoBehaviour {
-
-    public AudioClip hitAudio;
+public class Barriar : MonoBehaviour {
 
+    public AudioClip hitAudio;
 
-    public void PlayAudio()
-    {
-        AudioSource.PlayClipAtPoint(hitAudio, transform.position);
+    //播放音乐
+    public void PlayAudio()
+    {
+        AudioSource.PlayClipAtPoint(hitAudio, transform.position);
     }
 }

Assets/Scripts/Born.cs

@@ -4,14 +4,15 @@
 
 public class Born : MonoBehaviour {
 
+    //存放需要的坦克
     public GameObject[] playerPrefab;
-
+    //存放需要的敌人
     public GameObject[] enemyPrefabList;
-
+    //生成的模式
     public int createPlayer;
 
-	// Use this for initialization
-	void Start () {
+	//生成一个敌人，后摧毁自己
+	void Start () {
         Invoke("BornTank", 1f);
         Destroy(gameObject, 1);
 	}
@@ -20,23 +21,26 @@ void Start () {
 	void Update () {
 
 	}
+    //诞生坦克
+    private void BornTank()
+    {
+        //诞生玩家1
+        if (createPlayer == 1)
+        {
+            Instantiate(playerPrefab[0], transform.position, Quaternion.identity);
 
-    private void BornTank()
-    {
-        if (createPlayer == 1)
-        {
-            Instantiate(playerPrefab[0], transform.position, Quaternion.identity);
-
-        }
-        else if(createPlayer == 2)
-        {
-            Instantiate(playerPrefab[1], transform.position, Quaternion.identity);
-        }
-        else
-        {
-            int num = Random.Range(0, 2);
-            Instantiate(enemyPrefabList[num], transform.position, Quaternion.identity);
-        }
-
+        }
+        //诞生玩家2
+        else if(createPlayer == 2)
+        {
+            Instantiate(playerPrefab[1], transform.position, Quaternion.identity);
+        }
+        //诞生敌人
+        else
+        {
+            int num = Random.Range(0, 2);
+            Instantiate(enemyPrefabList[num], transform.position, Quaternion.identity);
+        }
+
     }
 }

Assets/Scripts/Bullect.cs

@@ -3,27 +3,31 @@
 using UnityEngine;
 
 public class Bullect : MonoBehaviour {
-
+
+    //子弹移动速度
     public float moveSpeed = 10;
-
+    //判别是谁的子弹
     public bool isPlayerBullect;
 
 
-	// Use this for initialization
+
 	void Start () {
 
 	}
 
-	// Update is called once per frame
+
+	//子弹每秒移动
 	void Update () {
         transform.Translate(transform.up * moveSpeed * Time.deltaTime, Space.World);
 	}
 
-
+    //判断碰到了谁
     private void OnTriggerEnter2D(Collider2D collision)
     {
+        //碰撞的标签
         switch (collision.tag)
         {
+            //给碰撞的物体死亡信息
             case "Tank":
                 if (!isPlayerBullect)
                 {
@@ -43,6 +47,7 @@ private void OnTriggerEnter2D(Collider2D collision)
                 }
 
                 break;
+            //墙壁则摧毁
             case "Wall":
                 Destroy(collision.gameObject);
                 Destroy(gameObject);

Assets/Scripts/Enemy.cs

@@ -1,57 +1,72 @@
-using System.Collections;
-using System.Collections.Generic;
-using UnityEngine;
-
+/****************************************
+* 敌方坦克模块，由系统自动控制
+******************************************/
+
+using UnityEngine;
+using System.Collections;
+using System.Collections.Generic;
+
 public class Enemy : MonoBehaviour {
 
-    //属性值
-    public float moveSpeed = 3;
-    private Vector3 bullectEulerAngles;
-    private float v=-1;
+    /*坦克属性值*/
+    public float moveSpeed = 3;   //移动速度
+
+    private Vector3 bullectEulerAngles;   //子弹飞行角度
+
+    private float v=-1; 
+    // v控制坦克的垂直方向
+    // v=1  表示向上
+    // v=-1 表示向下   
+
     private float h;
+    // h控制坦克的水平方向
+    // h=1  表示向右
+    // h=-1 表示向左   
 
-    //引用
-    private SpriteRenderer sr;
-    public Sprite[] tankSprite;//上 右 下 左
-    public GameObject bullectPrefab;
-    public GameObject explosionPrefab;
-
-    //计时器
-    private float timeVal;
-    private float timeValChangeDirection;
+    /*系统调用*/
+    private SpriteRenderer sr;         //控制图片方向
+    public Sprite[] tankSprite;        //上 右 下 左 方向的图片
+    public GameObject bullectPrefab;   //出生特效
+    public GameObject explosionPrefab; //爆炸特效
 
+    /*计时器*/
+    private float timeValAttack;           //攻击时间间隔
+    private float timeValChangeDirection;  //转向时间间隔
 
-    private void Awake()
-    {
-        sr = GetComponent<SpriteRenderer>();
-    }
 
     // Use this for initialization
     void Start()
     {
-
+        //nothing  to do
     }
 
     // Update is called once per frame
     void Update()
     {
-
-
         //攻击的时间间隔
-        if (timeVal >= 3)
+        if (timeValAttack >= 3)
         {
+            //间隔时间到了就攻击
             Attack();
         }
         else
         {
-            timeVal += Time.deltaTime;
+            //间隔时间没到不能攻击，时间累积
+            timeValAttack += Time.deltaTime;
         }
 
     }
 
     private void FixedUpdate()
     {
-        Move();
+        Move();  //坦克移动方法
+    }
+
+    //坦克生成方法
+    private void Awake()
+    {
+        //获取一个坦克对象
+        sr = GetComponent<SpriteRenderer>();
     }
 
     //坦克的攻击方法
@@ -60,33 +75,42 @@ private void Attack()
 
        //子弹产生的角度：当前坦克的角度+子弹应该旋转的角度。
        Instantiate(bullectPrefab, transform.position, Quaternion.Euler(transform.eulerAngles + bullectEulerAngles));
-       timeVal = 0;
+        timeValAttack = 0;
 
     }
 
 
     //坦克的移动方法
     private void Move()
     {
-
+        //如果距离上一次改变朝向的时间间隔达到了4
         if (timeValChangeDirection>=4)
         {
+            //生成一个（0,8）的随机数，根据范围来确定方向
             int num = Random.Range(0, 8);
+
+            //向下
             if (num>5)
             {
                 v = -1;
                 h = 0;
             }
+
+            //向上
             else if (num==0)
             {
                 v = 1;
                 h = 0;
             }
+
+            //向左
             else if (num>0&&num<=2)
             {
                 h = -1;
                 v = 0;
             }
+
+            //向右
             else if (num > 2 && num <= 4)
             {
                 h = 1;
@@ -97,62 +121,78 @@ private void Move()
         }
         else
         {
+            //时间累积
             timeValChangeDirection += Time.fixedDeltaTime;
         }
 
-
-
-
+        //改变垂直坐标
         transform.Translate(Vector3.up * v * moveSpeed * Time.fixedDeltaTime, Space.World);
 
-        if (v < 0)
+        if (v < 0) //向下
         {
+            //坦克图片改为向下
             sr.sprite = tankSprite[2];
+
+            //子弹角度改为向下
             bullectEulerAngles = new Vector3(0, 0, -180);
         }
 
-        else if (v > 0)
+        else if (v > 0)  //向上
         {
+            //坦克图片改为向上
             sr.sprite = tankSprite[0];
+
+            //子弹角度改为向上
             bullectEulerAngles = new Vector3(0, 0, 0);
         }
 
-        if (v != 0)
+        if (v != 0) //不动
         {
             return;
         }
 
 
+        //改变水平坐标
         transform.Translate(Vector3.right * h * moveSpeed * Time.fixedDeltaTime, Space.World);
-        if (h < 0)
+
+        if (h < 0)  //向左
         {
+            //坦克图片改为向左
             sr.sprite = tankSprite[3];
+
+            //子弹角度改为向左
             bullectEulerAngles = new Vector3(0, 0, 90);
         }
 
-        else if (h > 0)
+        else if (h > 0)  //向右
         {
+            //坦克图片改为向右
             sr.sprite = tankSprite[1];
+
+            //子弹角度改为向右
             bullectEulerAngles = new Vector3(0, 0, -90);
         }
     }
 
-    //坦克的死亡方法
+    //坦克死亡方法
     private void Die()
     {
-        PlayerManager.Instance.playerScore++;
         //产生爆炸特效
         Instantiate(explosionPrefab, transform.position, transform.rotation);
-        //死亡
+        //销毁
         Destroy(gameObject);
+        //玩家得分加一
+        PlayerManager.Instance.playerScore++;
     }
 
+    //坦克碰撞方法
     private void OnCollisionEnter2D(Collision2D collision)
     {
         if (collision.gameObject.tag=="Enemy")
         {
+            //碰撞之后必须改变方向，将转向时间间隔调到4即可
             timeValChangeDirection = 4;
         }
     }
 
-}
+}