I can't see specifically from your images but usually when something like this happens what you've got is a repeater that is powering wire which is looped back into the repeater itself. Finding and correcting all of these is always part of the process of making circuits. It looks to me like yours is a little more complicated and involves torches but the principle is the same, power is somehow being circulated in a loop until it is always on.
The only way I could reproduce it is if the wire is on half blocks rather than full blocks. You see what powers the pistons in this case isn't the redstone directly, the redstone powers the block its on and this powers the piston. Put power doesn't transfer into "transparent" blocks like half slabs, glowstone etc. TLDR: use full blocks.
Do you need to count them even if two buttons are hit at the exact same time? Cause that would be trickier.
Or does each individual button need its own counter...? Then its pretty easy.
Your description is really quite vague.
I could also interpret it to mean you want to know the order in which the buttons were pressed which has little or nothing to do with counting.
I think the simplest decription would be it's a 2 bit decoder arranged in a non standard order.
I can sort of understand people incorrectly thinking its a binary to decimal decoder, yes it's a decoder but there is nothing about it to suggest it has to do with binary to decimal, I expect people are just relating it to something they have experience with.
Not only is it my exact design, the poster was the one that asked me to make a tutorial. I don't mind you using my design, but please give me some credit.
Looking at the evidence it seems pretty clear he copied your design and is passing it off as his own, for shame Festivshane.
Since you don't care about it being retracted again I would just use cobblestone generators hidden underground and pushing up. It wouldn't have a roof or a door or a second floor.
Here is something that may help you in the future, a technique for minimizing circuits up to 4 inputs. You'll need to learn some notation to be able to understand but that's up to you.
The simplest solution I could come up with is this:
Make a 3 bit decoder (you can find tutorials) but include only the three combinations that are 1 in your truth table, then combine the three outputs (in other words OR them together) this is your final output.
Why wouldn't people be able to go in from the top?
Couldn't people just go to max height then sideways and walk right on in?
Also, blocks take longer to destroy when underwater/lava, something to consider.
For example even in pure vanilla you can't destroy an obsidian underwater before you drown. (normal diamond pickaxe).
Will moving blocks with pistons reset their damage? If so you might be able to extend there life this way and force people to destroy the pistons which are protected better first.
This discussion could go on for pages. I'm stopping here.
The first bit of the adder is not responsible for the next bit, nor the next bit after that, for that would add infinite delay if the first bit was responsible for the next bits (of say like 64 adders).
Well, yeah... it is... there's carry. In minecraft it's possible to have instant carry but it still is carry so obviously they are dependent.
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Do you need to count them even if two buttons are hit at the exact same time? Cause that would be trickier.
Or does each individual button need its own counter...? Then its pretty easy.
Your description is really quite vague.
I could also interpret it to mean you want to know the order in which the buttons were pressed which has little or nothing to do with counting.
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I can sort of understand people incorrectly thinking its a binary to decimal decoder, yes it's a decoder but there is nothing about it to suggest it has to do with binary to decimal, I expect people are just relating it to something they have experience with.
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Looking at the evidence it seems pretty clear he copied your design and is passing it off as his own, for shame Festivshane.
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I Hate You.
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Karnaugh maps:
http://www.facstaff.bucknell.edu/mastascu/elessonshtml/Logic/Logic3.html
You can find useful notation and other information here:
http://en.wikipedia.org/wiki/Logic_gate
The simplest solution I could come up with is this:
Make a 3 bit decoder (you can find tutorials) but include only the three combinations that are 1 in your truth table, then combine the three outputs (in other words OR them together) this is your final output.
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Couldn't people just go to max height then sideways and walk right on in?
Also, blocks take longer to destroy when underwater/lava, something to consider.
For example even in pure vanilla you can't destroy an obsidian underwater before you drown. (normal diamond pickaxe).
Will moving blocks with pistons reset their damage? If so you might be able to extend there life this way and force people to destroy the pistons which are protected better first.
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Personally I went to the effort of going to his profile and giving him a 1 rating.
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Well, yeah... it is... there's carry. In minecraft it's possible to have instant carry but it still is carry so obviously they are dependent.