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McBaron

Jun 29th, 2025 (edited)

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-- Turtle Smart Fill with True Robust Layer Return and Chest Dump
local function askNumber(prompt)
print(prompt)
local val = tonumber(read())
while not val do
print("Please enter a valid number:")
val = tonumber(read())
end
return math.floor(val)
end
local function askDirection()
print("Build direction? Type 'up' for bottom-to-top or 'down' for top-to-bottom:")
local dir = read()
while dir ~= "up" and dir ~= "down" do
print("Please type 'up' or 'down':")
dir = read()
end
return dir
end
local moves = {}
local heading = 0 -- 0: forward, 1: right, 2: back, 3: left
local function forward()
while not turtle.forward() do
turtle.dig()
sleep(0.2)
end
table.insert(moves, {action="fwd"})
end
local function moveUp()
while not turtle.up() do
turtle.digUp()
sleep(0.2)
end
end
local function moveDown()
while not turtle.down() do
turtle.digDown()
sleep(0.2)
end
end
local function turnRight()
turtle.turnRight()
heading = (heading + 1) % 4
table.insert(moves, {action="tr"})
end
local function turnLeft()
turtle.turnLeft()
heading = (heading + 3) % 4
table.insert(moves, {action="tl"})
end
local function turnRightRaw() turtle.turnRight(); heading = (heading + 1) % 4 end
local function turnLeftRaw() turtle.turnLeft(); heading = (heading + 3) % 4 end
local function refuelIfNeeded(needed)
turtle.select(1)
if turtle.getFuelLevel() == "unlimited" then return true end
if turtle.getFuelLevel() < needed then
print("Refueling from slot 1...")
if not turtle.refuel(64) then
print("⚠️ Could not refuel from slot 1.")
else
print("Fuel level: "..turtle.getFuelLevel())
end
end
if turtle.getFuelLevel() < needed then
print("❌ Not enough fuel. Need at least "..needed..".")
return false
end
return true
end
local function dumpToChest()
print("Dumping items to chest...")
for i = 2, 16 do
turtle.select(i)
local item = turtle.getItemDetail()
if item then
if not (item.name == targetBlockName) then
turtle.drop()
end
end
end
end
local function isInventoryFull()
for i = 3, 16 do
if turtle.getItemCount(i) == 0 then return false end
end
return true
end
local function placeSlot2Block()
turtle.digDown()
if turtle.detectDown() then return true end
for i = 2, 16 do
turtle.select(i)
local item = turtle.getItemDetail()
if item and item.name == targetBlockName then
return turtle.placeDown()
end
end
print("⚠️ No matching block left to place.")
return false
end
-- Ask user
local length = askNumber("Enter length:")
local width = askNumber("Enter width:")
local height = askNumber("Enter height:")
local direction = askDirection()
-- Fuel estimate/check
local estimatedMoves = length * width * height * 3 + (height - 1) * (length + width)
print("Estimated fuel needed: "..estimatedMoves)
if not refuelIfNeeded(estimatedMoves) then return end
-- Block type from slot 2
turtle.select(2)
local slot2Block = turtle.getItemDetail()
if not slot2Block then
print("❌ No block found in slot 2. Please load desired block.")
return
end
targetBlockName = slot2Block.name
print("📦 Using only block type: "..targetBlockName)
turtle.select(2)
print("Place a chest in front of turtle's starting position for dumps.")
-- Move forward to first block (starting reference)
forward()
-- True robust: return to origin of the layer and clear moves
local function returnToOrigin()
-- Face forward
while heading ~= 0 do
turnRightRaw()
end
-- Undo all moves in reverse order
for i = #moves, 1, -1 do
local move = moves[i]
if move.action == "fwd" then
turtle.back()
elseif move.action == "up" then
turtle.down()
elseif move.action == "down" then
turtle.up()
elseif move.action == "tr" then
turtle.turnLeft()
heading = (heading + 3) % 4
elseif move.action == "tl" then
turtle.turnRight()
heading = (heading + 1) % 4
end
end
moves = {}
end
-- Build one layer, robust return at end
local function buildLayer()
for w = 1, width do
for l = 1, length do
turtle.dig()
if not placeSlot2Block() then return false end
if isInventoryFull() then
print("Inventory full! Returning to dump in chest.")
return "dump"
end
if l < length then forward() end
end
if w < width then
if w % 2 == 1 then
turnRight()
forward()
turnRight()
else
turnLeft()
forward()
turnLeft()
end
end
end
-- Always return to start of layer (lower/upper left corner, facing original)
returnToOrigin()
return true
end
-- Main build logic, moving up/down *after* return, clearing moves each time
local function build()
if direction == "up" then
for h = 1, height do
print("Building layer "..h.." / "..height)
local layerResult = buildLayer()
if layerResult == "dump" then
dumpToChest()
print("Please clear inventory and re-run script to finish the area!")
return
elseif not layerResult then return end
if h < height then
moveUp()
moves = {} -- CLEAR move log at start of new layer
end
end
else
for i = 1, height - 1 do moveUp() end
for h = height, 1, -1 do
print("Building layer "..h.." / "..height)
local layerResult = buildLayer()
if layerResult == "dump" then
dumpToChest()
print("Please clear inventory and re-run script to finish the area!")
return
elseif not layerResult then return end
if h > 1 then
moveDown()
moves = {} -- CLEAR move log at start of new layer
end
end
end
dumpToChest()
-- At very end, turtle is back at original start, facing forward.
end
build()
print("✅ Build complete! Returned to starting point and dumped inventory.")

Tags: fill

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