using UnityEngine;

public static class VectorUtils
{
    public static Vector3 LocalPointToWorldPos(Transform tr, Vector3 localPoint)
    {
        return tr.TransformPoint(localPoint);
    }

    public static Vector3[] GetBoxColliderVertexPositions(BoxCollider boxcollider)
    {

        var vertices = new Vector3[8];
        //下面4个点
        vertices[0] = boxcollider.transform.TransformPoint(boxcollider.center + new Vector3(boxcollider.size.x, -boxcollider.size.y, boxcollider.size.z) * 0.5f);
        vertices[1] = boxcollider.transform.TransformPoint(boxcollider.center + new Vector3(-boxcollider.size.x, -boxcollider.size.y, boxcollider.size.z) * 0.5f);
        vertices[2] = boxcollider.transform.TransformPoint(boxcollider.center + new Vector3(-boxcollider.size.x, -boxcollider.size.y, -boxcollider.size.z) * 0.5f);
        vertices[3] = boxcollider.transform.TransformPoint(boxcollider.center + new Vector3(boxcollider.size.x, -boxcollider.size.y, -boxcollider.size.z) * 0.5f);
        //上面4个点
        vertices[4] = boxcollider.transform.TransformPoint(boxcollider.center + new Vector3(boxcollider.size.x, boxcollider.size.y, boxcollider.size.z) * 0.5f);
        vertices[5] = boxcollider.transform.TransformPoint(boxcollider.center + new Vector3(-boxcollider.size.x, boxcollider.size.y, boxcollider.size.z) * 0.5f);
        vertices[6] = boxcollider.transform.TransformPoint(boxcollider.center + new Vector3(-boxcollider.size.x, boxcollider.size.y, -boxcollider.size.z) * 0.5f);
        vertices[7] = boxcollider.transform.TransformPoint(boxcollider.center + new Vector3(boxcollider.size.x, boxcollider.size.y, -boxcollider.size.z) * 0.5f);

        return vertices;
    }

    /// <summary>
    /// 根据目标点获取碰撞体的8点世界坐标
    /// </summary>
    /// <param name="target">目标点</param>
    /// <param name="boxcollider">目标身上的碰撞体</param>
    /// <returns>碰撞体的8点世界坐标</returns>
    public static Vector3[] GetBoxColliderVertexPositions(Vector3 target, BoxCollider boxcollider)
    {
        Vector3 center = target + boxcollider.center;
        var vertices = new Vector3[8];
        //下面4个点
        vertices[0] = center + new Vector3(boxcollider.size.x, -boxcollider.size.y, boxcollider.size.z) * 0.5f;
        vertices[1] = center + new Vector3(-boxcollider.size.x, -boxcollider.size.y, boxcollider.size.z) * 0.5f;
        vertices[2] = center + new Vector3(-boxcollider.size.x, -boxcollider.size.y, -boxcollider.size.z) * 0.5f;
        vertices[3] = center + new Vector3(boxcollider.size.x, -boxcollider.size.y, -boxcollider.size.z) * 0.5f;
        //上面4个点
        vertices[4] = center + new Vector3(boxcollider.size.x, boxcollider.size.y, boxcollider.size.z) * 0.5f;
        vertices[5] = center + new Vector3(-boxcollider.size.x, boxcollider.size.y, boxcollider.size.z) * 0.5f;
        vertices[6] = center + new Vector3(-boxcollider.size.x, boxcollider.size.y, -boxcollider.size.z) * 0.5f;
        vertices[7] = center + new Vector3(boxcollider.size.x, boxcollider.size.y, -boxcollider.size.z) * 0.5f;

        return vertices;
    }

    public static Vector3 OutputInpectorEulers(Transform transform)
    {
        Vector3 angle = transform.eulerAngles;
        float x = angle.x;
        float y = angle.y;
        float z = angle.z;

        if (Vector3.Dot(transform.up, Vector3.up) >= 0f)
        {
            if (angle.x >= 0f && angle.x <= 90f)
            {
                x = angle.x;
            }
            if (angle.x >= 270f && angle.x <= 360f)
            {
                x = angle.x - 360f;
            }
        }
        if (Vector3.Dot(transform.up, Vector3.up) < 0f)
        {
            if (angle.x >= 0f && angle.x <= 90f)
            {
                x = 180 - angle.x;
            }
            if (angle.x >= 270f && angle.x <= 360f)
            {
                x = 180 - angle.x;
            }
        }

        if (angle.y > 180)
        {
            y = angle.y - 360f;
        }

        if (angle.z > 180)
        {
            z = angle.z - 360f;
        }
        return new Vector3(x, y, z);
        //LogError(" Inspector Euler:  " + Mathf.Round(x) + " , " + Mathf.Round(y) + " , " + Mathf.Round(z));
    }
}