Actually, i dont know a title for the topic.
I am building displays in tree format.
So, i have one display (D1), that is linked with other 3 displays (D2; D3; D4). Each of thess display is liked with another displays:
Lvl 1 : D1
|
-------------------------------------------
| | |
| | |
Lvl 2: D2 D3 D4
| | |
| | |
------------ ----------- ------------
| | | | | | |
| | | | | | |
Lvl 3: D5 D6 D7 D8 D9 D10 D11
For example purposes, we will choose D2. So, D2 has 3 button:
B1 --> D2 - D1
B2 --> D2 - D5
B3 --> D2 - D6
In the same way, D1 has one button: B4 --> D1 - D2
In the same way, D5 has one button: B5 --> D5 - D2
In the same way, D6 has one button: B6 --> D6 - D2
So, D2 can be accessed only from D1, D5 or D6.
Is there any way to discover where i came from? Well, I can be at D1, D5 or D6, to access D2. Once i reached D2, is there a way to know from where i came, if it was from D1, D5 or D6?
Sorry my english, but i think it is clear to understand!
Thanks for your attention!
Regards,
Naraiel Ferrari