Unity3d 如何使2D光线投射完全忽略具有特定标记的碰撞器

光线投射器将从枪中射出并击中枪本身。如果它没有击中自己，它会击中持枪的玩家。玩家是一个布娃娃，经常在枪前摔倒。我希望它射出，忽略自己和玩家，只探测风景。 我还对如何使用Debug.DrawRay（位置、方向、颜色）感到困惑；如何增加长度？debug.drawray是否没有长度选项？ 我已经为此挣扎了几天了（我是一个初学者）。非常感谢您的帮助，非常感谢

         if (Input.GetKey(KeyCode.S))
         {
             if (Input.GetKeyDown(KeyCode.D))
             {
                //run shoot function

                 StartCoroutine(Shoot());

             }
         }
     }
     IEnumerator Shoot()
     {

         //direction = destination - source
         Vector2 direction = (ShootHere.transform.position - transform.position);
         RaycastHit2D hitInfo = Physics2D.Raycast(transform.position, direction, 40);
         Debug.DrawRay(transform.position, direction, Color.red);
       //This is me trying to get the raycast to not hit the player hitbox, this does not do that, it just causes 
       //the raycast to end the detection when it hits the object and instead procead to draw a line (The else statement)
       //How do I get my raycast to ignore the tagged objects and to detect the next object past itself and the player?
         if (hitInfo && hitInfo.collider.tag != "Player1" && hitInfo.collider.name != gameObject.name)
         {
             Debug.Log("RayCast hit a hitbox, the name is" + hitInfo.collider.name);
             lineRenderer.positionCount = 2;
             lineRenderer.SetPosition(0, transform.position);
             lineRenderer.SetPosition(1, hitInfo.point);
         }
         else
         {
             lineRenderer.positionCount = 2;
             lineRenderer.SetPosition(0, transform.position);
             lineRenderer.SetPosition(1, ShootHere.position + ShootHere.right * 100);
         }
         lineRenderer.enabled = true;
         yield return new WaitForSeconds(0.02f);
         lineRenderer.enabled = false;
     }
 }

}

我会改为使用，并在所有光线投射命中中循环

在世界坐标系中从

start

到

start+dir

绘制一条线。

我将使用它，并在所有光线点击中循环

在世界坐标中从

start

到

start+dir

绘制一条线