function takeinput()
print("What is the current y value of the turtle?")
y = tonumber(read())
print("How long is the intended quarry lengthwise? (In front of and including the turtle.)")
l = tonumber(read())
print("And how long the width of this quarry?(To the right of and including the turtle.)")
w = tonumber(read())
if type(y) == "nil" or type(l) == "nil" or type(w) == "nil" then
print("\nAll inputs must be numerical, try again.\n")
takeinput()
elseif y <= 4 then
print("\nYour y value must be above bedrock. Please either move the turtle above the bedrock layers or enter the correct value.\n")
takeinput()
else
return y, l, w
end
print("Finished takeinput")
end


function isOre(s)
print("Running isOre")
if string.find(s,"ore") then
return true
end
print("Finished isOre")
end


function selectEmpty()
print("Running selectEmpty")
for i=1, 16 do
if turtle.getItemCount(i) == 0 then
turtle.select(i)
return true
end
end
print("Finished selectEmpty")
end


function putWhere(sample)
print("Running putWhere")
for i=1, 16 do
if turtle.getItemDetail(i).name == sample then
turtle.select(i)
return true
end
end
print("Finished putWhere")
end


function mine(y, l, w)
for i=y, 6, -1 do
local useless, block = turtle.inspectDown()
if not turtle.detectDown() then
turtle.down()
elseif isOre(block.name) then
putWhere(block.name)
turtle.digDown()
turtle.down()
selectEmpty()
else
turtle.digDown()
turtle.dropUp()
turtle.down()
end
end

for i=1, w do
if not turtle.detect() then
local useless, block = turtle.inspect()
end
for i=1, l-1 do
if not turtle.detect() then
local useless, block = turtle.inspect()
end
if not turtle.detect() then
turtle.forward()
elseif isOre(block.name) then
putWhere(block.name)
turtle.dig()
turtle.forward()
selectEmpty()
else
turtle.dig()
turtle.drop()
turtle.forward()
end

turtle.turnRight()
if not turtle.detect() then
turtle.forward()
turtle.turnRight()
elseif isOre(block.name) then
putWhere(block.name)
turtle.dig()
turtle.forward()
turtle.turnRight()
selectEmpty()
else
turtle.dig()
turtle.drop()
turtle.forward()
turtle.turnRight()
end
end
end
return true
end


mine(takeinput())