Mine

local robot = require("robot")
local computer = require("computer")
local component = require("component")
local sides = require("sides")

function moveForward()
    if robot.detect() then robot.swing() end
    if not robot.forward() then computer.shutdown() end
end

function moveUp()
    if robot.detectUp() then robot.swingUp() end
    if not robot.up() then computer.shotdown() end
end

function moveDown()
    if robot.detectDown() then robot.swingDown() end
    if not robot.down() then computer.shutdown() end
end

function shouldMine(side)
    local info = component.geolyzer.analyze(side)
    return info and info.name and (info.name:match(".*[oO]re.*") or info.name:match(".*Obsidian.*"))
end

function scanDig()
    if robot.detectUp() and shouldMine(sides.top) then
        moveUp()
        scanDig()
        moveDown()
    end
    if robot.detectDown() and shouldMine(sides.bottom) then
        moveDown()
        scanDig()
        moveUp()
    end
    for i=2,5,1 do
        if robot.detect() and shouldMine(i) then
            if i == sides.right then robot.turnRight()
            elseif i == sides.left then robot.turnLeft()
            elseif i == sides.back then robot.turnAround()
            end

            moveForward()
            scanDig()
            robot.back()

            if i == sides.right then robot.turnLeft()
            elseif i == sides.left then robot.turnRight()
            elseif i == sides.back then robot.turnAround()
            end
        end
    end
end

local distance = 10
for ix=1,distance/2,1 do
    scanDig()
    moveUp()
    scanDig()
    moveForward()
    scanDig()
    moveDown()
    scanDig()
    moveForward()
end

robot.turnAround()
for i=1,distance,1 do
    moveForward()
end
computer.shutdown()