I have a 3-state switch, It has 3 pins. It can have 3 state as you can see in the picture below. when it's off (i.e on O) the middle pin is not connected to anything. When it's on I, the middle pin is connected to I and when it's on II the middle pin is connected to II.
Now, I have one DC motor and a 9 volt battery. I wanted to build a connection between these three elements that when the switch is on O, the motor is off. When it's on I, it turns in one direccion and when it's on II it turns to the other direction. I wanted to avoid using any other logical elements like gates or diodes, etc...
All I want to have is just one switch, one DC motor and one DC battery. I've got no idea how to make this happen.
If there is no way of doing it, is there a way to build it with minimum extra required elements?