Question

我正在尝试进行一次线播，以避免我的敌人从地图上掉下来并卡在墙上，如果他发现边缘或墙壁，他会翻转并开始向另一个方向移动。用于检测边缘的线路播放做得很好，但是面向左侧的线阵（检测墙壁）总是被触发，我不知道为什么，所以敌人只是不停地翻转每一帧。

我的剧本：

public class Enemy1 : MonoBehaviour {

Rigidbody2D myBody;
Transform myTransf;
public LayerMask enemyMask;

float myWidth;
public float speed;

// Use this for initialization
void Start () {
    myTransf = this.transform;
    myBody = this.GetComponent<Rigidbody2D>();
    myWidth = this.GetComponent<SpriteRenderer>().bounds.extents.x;

}

// Update is called once per frame
void FixedUpdate () {
    // checking if theres any walls or edges, if so, flip
    Vector2 lineCastPos = myTransf.position - myTransf.right * myWidth;
    Debug.DrawLine(lineCastPos, lineCastPos + Vector2.down);
    bool isGrounded = Physics2D.Linecast(lineCastPos, lineCastPos + Vector2.down, enemyMask);
    Debug.DrawLine(lineCastPos, lineCastPos - myTransf.right.toVector2() *0.1f);
    bool isBlocked = Physics2D.Linecast(lineCastPos, lineCastPos - myTransf.right.toVector2() * 0.1f, enemyMask);
    RaycastHit2D hit = Physics2D.Linecast(lineCastPos, lineCastPos - myTransf.right.toVector2());

    if (!isGrounded || !isBlocked)
        {
        Vector3 currRot = myTransf.eulerAngles;
        currRot.y += 180;
        myTransf.eulerAngles = currRot;
        Debug.Log("Ray Hit: " + hit.point);
    }

    //moving left always
    Vector2 myVel = myBody.velocity;
    myVel.x = -myTransf.right.x * speed;
    myBody.velocity = myVel;

}

}

注意：RayCastHit2D Log给我的点0.0,0.0（在我的截图中的红点中突出显示）并且没有任何东西坐在那里，只有主摄像头。enter image description here

linecast始终返回true

0 个答案: