Vector2.Angle

パラメーター

説明

Returns the unsigned angle in degrees between from and to.

The angle returned is the unsigned acute angle between the two vectors. This means the smaller of the two possible angles between the two vectors is used. The result is never greater than 180 degrees.

関連項目: SignedAngle function.

using UnityEngine;

public class Vector2Angle : MonoBehaviour
{
    //Use these to get the GameObject's positions
    Vector2 m_MyFirstVector;
    Vector2 m_MySecondVector;

    float m_Angle;

    //You must assign to these two GameObjects in the Inspector
    public GameObject m_MyObject;
    public GameObject m_MyOtherObject;

    void Start()
    {
        //Initialise the Vector
        m_MyFirstVector = Vector2.zero;
        m_Angle = 0.0f;
    }

    void Update()
    {
        //Fetch the first GameObject's position
        m_MyFirstVector = m_MyObject.transform.position;
        //Fetch the second GameObject's position
        m_MySecondVector = m_MyOtherObject.transform.position;
        //Find the angle for the two Vectors
        m_Angle = Vector2.Angle(m_MyFirstVector, m_MySecondVector);
    }

    void OnGUI()
    {
        //Output the angle found above
        GUI.Label(new Rect(25, 25, 200, 40), "Angle Between Objects" + m_Angle);
    }
}