1.修改了脚本目录，使得脚本分类合理

2.完成投掷系统
3.完成抛物线绘制系统
4.完成地雷的触发和销毁系统

Assets/Prefabs/投掷物.prefab

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Assets/Scenes/序章-回忆 修改.unity

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   shellFallingTime: 1
   shellShadowRangeOfChange: 0.1
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-  rateOfChangeOfThrowingAngle: 10
-  strengthOfThrowing: 5
+  rateOfChangeOfThrowingAngle: 1
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Assets/Scripts/AbstractItem.meta

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Assets/Scripts/GameInfo.meta

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Assets/Scripts/Item.meta

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Assets/Scripts/Item/Mine.cs

@@ -0,0 +1,34 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class Mine : MonoBehaviour
+{
+    // Start is called before the first frame update
+    void Start()
+    {
+        
+    }
+
+    // Update is called once per frame
+    void Update()
+    {
+        
+    }
+
+    public void OnTriggerEnter2D(Collider2D other)
+    {
+        //看看进来的是个啥
+        switch(other.tag)
+        {
+            case "Player"://如果是玩家，后续填写死亡
+                Debug.Log("玩家踩到地雷了");
+                break;
+            case "投掷物"://如果是投掷物，销毁投掷物和自己
+                Debug.Log("投掷物砸到地雷了");
+                Destroy(other.gameObject);
+                Destroy(gameObject);
+                break;
+        }
+    }
+}

Assets/Scripts/Item/Mine.cs.meta

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Assets/Scripts/M_Player.cs

@@ -52,11 +52,12 @@ public class M_Player : MonoBehaviour
             throwingAngle += throwingAngleDir//则让现在的抛出角度加上变化的速度
                              * indexRecoder.rateOfChangeOfThrowingAngle//乘以变化的速率
                              * Time.deltaTime;//使其与时间无关
-            Debug.DrawLine(transform.position,
+            Debug.DrawLine(throwOffset.position,
                             new Vector3(transform.position.x + 100*Mathf.Cos(throwingAngle),
                                         transform.position.y + 100*Mathf.Sin(throwingAngle),
                                         transform.position.z),
                             Color.red);
+           DrawPath(); 
         }
     }
 
@@ -112,7 +113,7 @@ public class M_Player : MonoBehaviour
 
     private void Throw()
     {
-        Debug.Log("我投出手上拿着的东西了");
+        //Debug.Log("我投出手上拿着的东西了");
         Rigidbody2D rigidbodyOfMissile = 
             Instantiate(missile,throwOffset.position,Quaternion.identity).GetComponent<Rigidbody2D>();
         rigidbodyOfMissile.velocity = new Vector2(indexRecoder.strengthOfThrowing*Mathf.Cos(throwingAngle),
@@ -182,4 +183,31 @@ public class M_Player : MonoBehaviour
     }
     public void QuitThrowingsState(){}
 
+    //绘制曲线的函数，非常🐂
+    public void DrawPath()
+    {
+        //
+        LineRenderer line = GetComponent<LineRenderer>();//获取组件
+        int segmentCount = 15;//定义点数
+        line.positionCount = segmentCount;//传入点数
+        float gravity=9.8f;//定义重力常量
+        Vector2 fireOffset = new Vector2(throwOffset.position.x - transform.position.x, 
+                                         throwOffset.position.y - transform.position.y);
+        Vector2[] segments = new Vector2[segmentCount];//定义二维向量数组，用来存15个点的位置
+        segments[0].Set(transform.position.x + fireOffset.x, transform.position.y + fireOffset.y);//定义起点
+        line.SetPosition(0, segments[0]);//把起点位置传入线的起点    
+        for (int i = 1; i < segmentCount; i++)//根据时间、循环确定点的位置
+        {
+            float time = i * Time.fixedDeltaTime * 5;//类似时间间隔的定义，也就是抛物线上的x多久取值一次
+            segments[i].x = transform.position.x + //自身位置的x
+                            fireOffset.x + //发射偏移量的x
+                            time * indexRecoder.strengthOfThrowing * Mathf.Cos(throwingAngle);//水平方向位移 = v*t
+            segments[i].y = (transform.position.y + fireOffset.y + //自身位置的y
+                            time * indexRecoder.strengthOfThrowing * Mathf.Sin(throwingAngle) + 
+                            (0.5f * gravity * time * time)*-1);//垂直方向位移 = vt + 1/2 * g * t^2
+            line.SetPosition(i, segments[i]);  //把算好的点传入线的点集     
+        }
+    }
+    //
+
 }

ProjectSettings/TagManager.asset

@@ -6,6 +6,7 @@ TagManager:
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   - "\u5730\u9762"
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   - TransparentFX