Placing/removing blocks depending on redstone state

[Flenix]

Hey guys.

 

What would be the best way for me to do the above?

 

I have a metadata-based rotation block; it can face one of four directions (N/E/S/W).

What I want to be able to do, is when it has redstone power, it places a block above. When the power is removed, it deletes that block and places one to the right.

 

I can do the "if meta is 1 place it here" parts etc just fine. What I'm having trouble with is actually changing between powered and unpowered. Do I need to change the metadata when I power it or anything? If so, how would I do that?

 

I dislike redstone

[Draco18s]

Yes.  Use a bitflag (as metadata) to save its powered/unpowered state.

 

All you should need to do is check for power in the onNeighborBlockChanged function, if it has it, set its powered flag (if not, clear it) then schedule an updateTick (which is where the code you have should be already)