void ImportTrail()
{
listPos = WriteFileUtil.ListFromJson <Vector3>("Assets/Json/test.json");
trail.Clear();
for (int i = 0; i < listPos.Count; i++)
{
}
}
void ImportPositions()
{
listPos = WriteFileUtil.ListFromJson <Vector3>("Assets/Json/test.json");
player.position = listPos[listPos.Count - 1];
}