public void ModifyKey(float time, Vector3 position, Vector3 euler_angles)
{
CurveUtility.ModifyCurveKey(posx, time, position.x);
CurveUtility.ModifyCurveKey(posy, time, position.y);
CurveUtility.ModifyCurveKey(posz, time, position.z);
CurveUtility.ModifyCurveKey(anglex, time, euler_angles.x);
CurveUtility.ModifyCurveKey(angley, time, euler_angles.y);
CurveUtility.ModifyCurveKey(anglez, time, euler_angles.z);
Quaternion quat = Quaternion.identity;
quat.eulerAngles = euler_angles;
CurveUtility.ModifyCurveKey(rotx, time, quat.x);
CurveUtility.ModifyCurveKey(roty, time, quat.y);
CurveUtility.ModifyCurveKey(rotz, time, quat.z);
CurveUtility.ModifyCurveKey(rotw, time, quat.w);
}