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unity/Assets/Script/CombaSyatem/BulletObject.cs

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+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class BulletObject : MonoBehaviour
+{
+    private bool initialied = false;
+
+    [SerializeField] private Vector2 startPos;
+    private Vector2 midPos;
+    private float percent = 0;
+    private float percentSpeed = 0;
+    [SerializeField] private float speed = 25;
+
+
+    private Vector2 lastTargetPos;
+
+
+
+    // Update is called once per frame
+    void FixedUpdate()
+    {
+        if (initialied )
+        {
+            percent += percentSpeed * Time.deltaTime;
+            if (percent >= 1)
+            {
+                percent = 1;
+            }
+            transform.position = UnityExpandFunction.Bezier(percent, startPos, midPos, lastTargetPos);
+        }
+        if(transform.position==new Vector3(lastTargetPos.x, lastTargetPos.y,0))
+        {
+            Destroy(this.gameObject);
+        }
+      
+    }
+    public void Init(GameObject parent)
+    {
+        GameObject player = GameObject.FindGameObjectWithTag("Player");
+        if(player!=null)
+        {
+            lastTargetPos = player.transform.position;
+
+            startPos = parent.transform.position+new Vector3(Random.Range(0,2), Random.Range(0, 2),0);
+
+            midPos = GetMiddlePostion(parent.transform.position, lastTargetPos);
+
+            percentSpeed = speed / (lastTargetPos - startPos).magnitude;
+
+            transform.position = startPos;
+
+            percent = 0;
+            initialied = true;
+        }
+    }
+
+
+    /// <summary>
+    /// ÖÐÐĵã
+    /// </summary>
+    /// <param name="a"></param>
+    /// <param name="b"></param>
+    /// <returns></returns>
+    private Vector2 GetMiddlePostion(Vector2 a, Vector2 b)
+    {
+        Vector2 m = Vector2.Lerp(a,b,0.1f);
+        Vector2 normal = Vector2.Perpendicular(a-b).normalized;
+
+        float rd = Random.Range(-2f,2f);
+        float curveRatio = 15f;//Æ«ÒÆÖµ
+
+        return m + (a - b).normalized * curveRatio * rd * normal;
+    }
+
+    private void OnTriggerEnter2D(Collider2D collision)
+    {
+        if(collision.CompareTag("Player"))
+        {
+            if (collision.gameObject.GetComponentInChildren<CombaSystem>()._animator.CheckAnimationTag("Roll"))
+                return;
+            Debug.Log("»÷ÖÐ");
+            collision.gameObject.GetComponentInChildren<CombaSystem>().TakeDamage(20);
+        }
+    }
+}