public void Change <New_State>() where New_State : IState, new()
{
if (next != null)
{
return;
}
if (!_states.TryGetValue(TypeID.Get <New_State>(), out var next_state))
{
_states[TypeID.Get <New_State>()] = next_state = new New_State();
init = true;
}
next = next_state;
}
