public static float Angle(Vector3 from, Vector3 to)
{
return Mathf.Acos(Mathf.Clamp(Vector3.Dot(from.normalized, to.normalized), -1f, 1f)) * 57.29578f;
}
float judgeAngle = Vector3.Angle(Vector3.zero, Vector3.zero);
Debug.Log(judgeAngle);
judgeAngle = Vector3.Angle(Vector3.right, Vector3.zero);
Debug.Log(judgeAngle);
judgeAngle = Vector3.Angle(Vector3.zero, Vector3.right);
Debug.Log(judgeAngle);
judgeAngle = Vector3.Angle(Vector3.zero, Vector3.right);
Debug.Log(judgeAngle);
judgeAngle = Vector3.Angle(Vector3.zero, new Vector3(13, 441, 45));
Debug.Log(judgeAngle);
judgeAngle = Vector3.Angle(new Vector3(13, 441, 45), Vector3.zero);
Debug.Log(judgeAngle);
judgeAngle = Vector3.Angle(Vector3.forward, Vector3.zero);
Debug.Log(judgeAngle);
judgeAngle = Vector3.Angle(Vector3.back, Vector3.zero);
Debug.Log(judgeAngle);
judgeAngle = Vector3.Angle(Vector3.zero, Vector3.up);
Debug.Log(judgeAngle);
// => ここまで90
judgeAngle = Vector3.Angle(Vector3.right, Vector3.left);
Debug.Log(judgeAngle);
// => 180
judgeAngle = Vector3.Angle(Vector3.left, Vector3.left);
Debug.Log(judgeAngle);
// => 0
judgeAngle = Vector3.Angle(Vector3.right, Vector3.right);
Debug.Log(judgeAngle);
// => 0