How do I make a coded door?

[Slicksilver555]

For the sake of time I am using only 4 buttons, but the same goes for more.
The code will be 132 (creative, huh?)
EVENTS FOR MIDDLE/FIRST BUTTONS:
Check>0>onActivate>NamedBrick>NEXT BUTTON>setEventEnabled>0 1>1
Check>0>onActivate>Self>SetEventEnabled>0 1>0
EVENTS FOR LAST BUTTON:
NoCheck>0>onActivate>namedBrick>FIRST BUTTON>setEventEnabled>0 1>1
NoCheck>0>onActivate>NamedBrick>Door>DoorOpen
NoCheck>0>onActivate>Self>setEventEnabled>0 1 2>0
EVENTS FOR BUTTON NOT INCLUDED, RESET:
Check>0>onActivate>NamedBrick>FIRST BUTTON>setEventEnabled>0 1>1
Check>0>onActivate>NamedBrick>MIDDLE BUTTONS>setEventEnabled>0 1>0
Check>0>onActivate>NamedBrick>LAST BUTTON>setEventEnabled>0 1 2>0

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[SoulStealer]

@slicksilver555
what can i do to make it so when you enter the code right they buttons + a thing ontop the door will turn green...when you enter it wrong the buttons + thing ontop turns red for a second then turns grey/trans white(light over door)