Fuel Intake Max?

function test2()
print("WARNING: Entitys and falling gravel and sand will change course of Turtle.")
print(" ")
print(" ")
--Length/Width
print("Lenth/ Width must be an even number.")
print("Lenth/ Width:")
x = tonumber(read())
print(" ")
--Height
print("Height can be any number.")
print("Height:")
y = tonumber(read())
print(" ")
i = 0
j = 0
k = 0
l = 0
m = 0
n = 0
o = 0
p = 0
q = 0
--fuels and values
sticks = { name = "Sticks", value = 5 }
woodenTools = { name = "Wooden Tools", value = 10 }
scrap = { name = "Scrap", value = 15 }
woodBlocks = { name = "Wood Blocks", value = 15 }
mushroomBlocks = { name = "Mushroom Blocks", value = 15 }
woodenScaffolding = { name = "Wooden Scaffolding", value = 15 }
coal = { name = "Coal", value = 80 }
charcoal = { name = "Charcoal", value = 80 }
peat = { name = "Peat", value = 80 }
blazeRod = { name = "Blaze Rod", value = 120 }
coalCoke = { name = "Coal Coke", value = 320 }
biofuelCan = { name = "Biofuel Can", value = 520 }
lava = { name = "Lava", value = 1000 }
coalfuelCan = { name = "Coalfuel Can", value = 1520 }
--if square root of lenth * width is less than or greater than something, give that as recommended fuel.
--fix error here
--maybe use x squared and compare to fuel instead x and square root of fuel.
if x^2 <= sticks.value then
  recomendedFuel = "Sticks"
  fuel = sticks.value
end
if (sticks.value <= x^2) and (x^2 <= woodenTools.value) then
  recomendedFuel = "Wooden Tools"
  fuel = woodenTools.value
end
if (woodenTools.value <= x^2) and (x^2 <= scrap.value) then
  recomendedFuel = "Scrap, Wood Blocks, Mushroom Blocks, Wooden Scaffolding"
  fuel = scrap.value
end
if (scrap.value <= x^2) and (x^2 <= coal.value) then
  recomendedFuel = "Coal/ Charcoal, Peat"
  fuel = coal.value
end
if (coal.value <= x^2) and (x^2 <= blazeRod.value) then
  recomendedFuel = "Blaze Rod"
  fuel = blazeRod.value
end
if (blazeRod.value <= x^2) and (x^2 <= coalCoke.value) then
  recomendedFuel = "Coal Coke"
  fuel = coalCoke.value
end
if (coalCoke.value <= x^2) and (x^2 <= biofuelCan.value) then
  recomendedFuel = "Biofuel Can"
  fuel = biofuelCan.value
end
if (biofuelCan.value <= x^2) and (x^2 <= lava.value) then
  recomendedFuel = "Lava"
  fuel = lava.value
end
if (lava.value <= x^2) and (x^2 <= coalfuelCan.value) then
  recomendedFuel = "Coalfuel Can"
  fuel = coalfuelCan.value
end
--Equations: for a 4x4x4 cube
--Top = x^2 + (x - 1)
--Normal Layer = (x^2 - x) + 1
--Bottom = x^2
--Finish/Return(even depth) = x + x
moves = (((x^2)+(x - 1))+((y - 1)*(((x^2) - x) + 1)) + (x^2) + (x + x))
print("Expected total number of moves:")
print(moves)
print(" ")
print("Recomended fuel:")
print(recomendedFuel)
print(" ")
print("Use this fuel? Type 'Yes'")
print("Use custom? Type 'Other'")
fuelSelection = read()
print(" ")
if fuelSelection == "Yes" then
  print("Estimated number of fuel needed:")
  --total number divided by the number fuel can move
  fuelNeeded = moves / fuel
  print(fuelNeeded)
  print("Make sure to add 1 to amount of fuel")
  print("This will ensure completion.")
  print(" ")
end
--finish this somehow
--convert input to number? assign fuels a number?
--convert fuel variables (coal = 80 etc)
--give each fuel variable an additional string value so that when string is inputed, fuel variable can be used
--give one variable a number and string value.
--check stack overflow
if fuelSelection == "Other" then
  --Fuels.  does not show all of them
  print("Fuels and movement allowed low to high")
  print(" ")
  print("-Sticks: 5")
  print("-Wooden Tools: 10")
  print("-Scrap, Wood Blocks, Mushroom Blocks, Wooden Scaffolding: 15")
  print("-Coal/Charcoal, Peat: 80")
  print("-Blaze Rod: 120")
  print("-Coal Coke: 320")
  print("-Biofuel Can: 520")
  print("-Lava: 1000")
  print("-Coalfuel Can: 1520")
  print(" ")
  print("Estimated number of moves:")
  print(moves)
  print("Enter fuel type:")
  fuelType = read()
  if fuelType == sticks.name then
   fuel = sticks.value
  end
  if fuelType == woodenTools.name then
   fuel = woodenTools.value
  end
  if fuelType == scrap.name then
   fuel = scrap.value
  end
  if fuelType == woodBlocks.name then
   fuel = woodBlocks.value
  end
  if fuelType == mushroomBlocks.name then
   fuel = mushroomBlocks.value
  end
  if fuelType == woodenScaffolding.name then
   fuel = woodenScaffolding.value
  end
  if fuelType == coal.name then
   fuel = coal.value
  end
  if fuelType == charcoal.name then
   fuel = charcoal.value
  end
  if fuelType == peat.name then
   fuel = peat.value
  end
  if fuelType == blazeRod.name then
   fuel = blazeRod.value
  end
  if fuelType == coalCoke.name then
   fuel = coalCoke.value
  end
  if fuelType == biofuelCan.name then
   fuel = biofuelCan.value
  end
  if fuelType == lava.name then
   fuel = lava.value
  end
  if fuelType == coalfuelCan.name then
   fuel = coalfuelCan.value
  end
  print("Estimated number of fuel needed:")
  --total number divided by the number fuel can move
  fuelNeeded = moves / fuel
  print(fuelNeeded)
  print("Make sure to add 1 to amount of fuel.")
  print("This will ensure completion.")
  print(" ")
end
--Pause program
--Resume program when 'yes' is typed
print("Type 'Yes' to continue")
continue = read()
if continue == "Yes" then
--START MINING--
--START MINING--
--First Horizontal row
turtle.refuel(fuelNeeded + 1)
while i < x do
  turtle.digUp()
  while turtle.detectUp() do
   turtle.digUp()
   turtle.attackUp()
  end
  turtle.dig()
  while turtle.detect() do
   turtle.dig()
   turtle.attack()
  end
  turtle.forward()
  i = i + 1
end
i = 0
turtle.turnRight()
turtle.digUp()
while turtle.detectUp() do
  turtle.digUp()  
  turtle.attackUp()
end
turtle.dig()
while turtle.detect() do
  turtle.dig()
  turtle.attack()
end
turtle.forward()
turtle.turnRight()
--Vertical w/ horizondal 
while m < y + 1 do
  --Horizontal remainder
  while j < (x / 2) - 1 do
   while k < x - 1 do
    turtle.digUp()
    while turtle.detectUp() do
	 turtle.digUp()
	 turtle.attackUp()
    end
    turtle.dig()
    while turtle.detect() do
	 turtle.dig()
	 turtle.attack()
    end
    turtle.forward()
    k = k + 1
   end
   turtle.turnLeft()
   turtle.digUp()
   while turtle.detectUp() do
    turtle.digUp()
    turtle.attackUp()
   end
   turtle.dig()
   while turtle.detect() do
    turtle.dig()
    turtle.attack()
   end
   turtle.forward()
   turtle.turnLeft()
   while l < x - 1 do
    turtle.digUp()
    while turtle.detectUp() do
	 turtle.digUp()
	 turtle.attackUp()
    end
    turtle.dig()
    while turtle.detect() do
	 turtle.dig()
	 turtle.attack()
    end
    turtle.forward()
    l = l + 1
   end
   turtle.turnRight()
   turtle.digUp()
   while turtle.detectUp() do
    turtle.digUp()
    turtle.attackUp()
   end
   turtle.dig()
   while turtle.detect() do
    turtle.dig()
    turtle.attack()
   end
   turtle.forward()
   turtle.turnRight()
   j = j + 1
   k = 0
   l = 0
  end 
  j = 0
  --finishes the last row above the first layer then restarts the process.
  if m == 0 then
   while q < x - 1 do
    turtle.digUp()
    while turtle.detectUp() do
	 turtle.digUp()
	 turtle.attackUp()
    end
    turtle.dig()
    while turtle.detect() do
	 turtle.dig()
	 turtle.attack()
    end
    turtle.forward()
    turtle.digUp()
    q = q + 1
   end
   q = 0
   while q < x - 1 do
    turtle.turnRight()
    turtle.turnRight()
    while turtle.detect() do
	 turtle.dig()
	 turtle.attack()
    end
    turtle.forward()
    q = q + 1
   end
   turtle.turnRight()
   turtle.turnRight()
   q = 0
  end
  --Vertical.  moves turtle down and starts the first row.
  if m < y then
   turtle.digDown()
   while turtle.detectDown() do
    turtle.attackDown()
   end
   turtle.down()
   while n < x - 1 do
    turtle.digUp()
    while turtle.detectUp() do
	 turtle.digUp()
	 turtle.attackUp()
    end
    turtle.dig()
    while turtle.detect() do
	 turtle.dig()
	 turtle.attack()
    end
    turtle.forward()
    n = n + 1
   end
   n = 0
   turtle.turnRight()
   turtle.digUp()
   while turtle.detectUp() do
    turtle.digUp()
    turtle.attackUp()
   end
   turtle.dig()
   while turtle.detect() do
    turtle.dig()
    turtle.attack()
   end
   turtle.forward()
   turtle.turnRight()
  end
  --finishs last row on bottom
  if m == y then
   if y % 2 == 0 then
    while p < x - 1 do
	 turtle.dig()
	 while turtle.detect() do
	  turtle.dig()
	  turtle.attack()
	 end
	 turtle.forward()
	 p = p + 1
    end
   else
    while p < x - 1 do
	 turtle.dig()
	 while turtle.detectUp() do
	  turtle.digUp()
	  turtle.attackUp()
	 end
	 turtle.forward()
	 p = p + 1
    end
   end
  end
  m = m + 1
end
--tests for even / odd numbered depths
--then makes turtle return to starting position
if y % 2 == 0 then
  --odd?
  while o < y do
   turtle.up()
   o = o + 1
  end
  o = 0
  turtle.turnRight()
  while o < x - 1 do
   while turtle.detect() do
    turtle.dig()
    turtle.attack()
   end
   turtle.forward()
   o = o + 1
  end
  turtle.turnLeft()
  turtle.forward()
else
  --odd
  while o < y do
   turtle.up()
   o = o + 1
  end
  o = 0
  turtle.turnRight()
  turtle.turnRight()
  while o < x do
   while turtle.detect() do
    turtle.dig()
    turtle.attack()
   end
   turtle.forward()
   o = o + 1
  end
end
end
print(" ")
print("Done")
end