GravelQuarry

local areaX, areaY, targetBlock = ...

local move = require("move1")
local inspect = require("inspect1")
local dropAll = require("dropAll1")


local saveFilename = "gravel/data.txt"

local turtlePos = {0, 0, 0}
local turtleLastPos = {turtlePos[1], turtlePos[2], turtlePos[3]}

local turtleVec = {1, 0}
local turtleLastVec = {turtleVec[1], turtleVec[2]}

--[[
    workModes:
        1:  normalMode
        2:  on way to start
        3:  on way to last pos
    targetBlock:
        1:  gravel + sand
        2:  gravel
        3:  sand
]]
local workMode = 1
local targetBlock = 1

local arrTargetBlocks = {"minecraft:gravel", "minecraft:sand"}

local function saveData(fileName, data)
    local file = fs.open(fileName, "w") -- Datei im Schreibmodus öffnen
    if file then
        file.write(textutils.serialize(data)) -- Tabelle in die Datei schreiben
        file.close()
        print("Daten gespeichert in:", fileName)
    else
        print("Fehler beim Speichern der Daten.")
    end
end

local function loadData(fileName)
    if fs.exists(fileName) then
        local file = fs.open(fileName, "r") -- Datei im Lesemodus öffnen
        if file then
            local content = file.readAll()
            file.close()
            return textutils.unserialize(content) -- String in Tabelle umwandeln
        end
    else
        print("Datei nicht gefunden:", fileName)
    end
    return nil -- Standardwert, wenn Datei nicht existiert
end

local function updateSaveData()
    local arrArea = {areaX, areaY}
    local dataToSave = {area = arrArea, pos = turtlePos, lastPos = turtleLastPos, vector = turtleVec, lastVector = turtleLastVec, mode = workMode, block = targetBlock}
    saveData(saveFilename, dataToSave)
end


local function forward()
    move.Forward()
    turtlePos[1] = turtlePos[1] + turtleVec[1]
    turtlePos[2] = turtlePos[2] + turtleVec[2]
    updateSaveData()
end
local function upward()
    move.Up()
    turtlePos[3] = turtlePos[3] + 1
    updateSaveData()
end
local function downward()
    move.Down()
    turtlePos[3] = turtlePos[3] - 1
    updateSaveData()
end
local function turnLeft()
    turtle.turnLeft()
    local buffer = turtleVec[1]
    turtleVec[1] = turtleVec[2]
    turtleVec[2] = -buffer
    updateSaveData()
end
local function turnRight()
    turtle.turnRight()
    local buffer = turtleVec[1]
    turtleVec[1] = -turtleVec[2]
    turtleVec[2] = buffer
    updateSaveData()
end

local function digGravel()
    while (not turtle.detectDown()) or inspect.Down(arrTargetBlocks) do
        downward()
    end
end
local function goForward()
    while (not inspect.Forward(arrTargetBlocks)) and turtle.detect() do
        upward()
    end
    forward()
end

local function varInArr(var, arr)
    for i = 1, #arr, 1 do
        if var == arr[i] then
            return true
        end
    end
    return false
end

local function selectItemFromList(itemList)
    local itemA = turtle.getItemDetail()
    if itemA then
        if varInArr(itemA.name, itemList) then
            return true
        end
    end

    for i=1, 16, 1 do
        if turtle.getItemCount(i) > 0 then
            turtle.select(i)
            local itemB = turtle.getItemDetail()
            if itemB then
                if varInArr(itemB.name, itemList) then
                    return true
                end
            end
        end
    end
    return false
end

local function offload()
    local chestList = { "minecraft:chest" }
    local bChest = inspect.Forward(chestList)

    if not bChest then
        if selectItemFromList(chestList) then
            bChest = true
            while not turtle.place() do
                if not turtle.dig() then
                    print("Can't place Block")
                    bChest = false
                    break
                end
            end
        end
    end

    if bChest then
        return dropAll.Forward()
    end
    return false
end

local function goToStart()
    if workMode == 1 then
        turtleLastPos = {turtlePos[1], turtlePos[2], turtlePos[3]}
        turtleLastVec = {turtleVec[1], turtleVec[2]}
        workMode = 2
    end

    while turtleVec[1] > -1 do
        turnRight()
    end
    if (turtlePos[1] + turtlePos[2] + math.abs(turtlePos[3])) > 0 then
        while turtlePos[1] > 0 do
            forward()
        end
        turnRight()
        while turtlePos[2] > 0 do
            forward()
        end
        turnLeft()
        while turtlePos[3] > 0 do
            downward()
        end
        while turtlePos[3] < 0 do
            upward()
        end
    end
    offload()
end

local function goToLastPosition()
    workMode = 3

    while turtlePos[3] < turtleLastPos[3] do
        upward()
    end
    while turtlePos[3] > turtleLastPos[3] do
        downward()
    end
    turnLeft()
    while turtlePos[2] < turtleLastPos[2] do
        forward()
    end
    turnLeft()
    while turtlePos[1] < turtleLastPos[1] do
        forward()
    end

    while not (turtleVec[1] == turtleLastVec[1] and turtleVec[2] == turtleLastVec[2]) do
        turnLeft()
    end

    workMode = 1
end

-- checks if turtle has enough fuel and refuels if not
local function checkAndRefuel()
    local distance = turtlePos[1] + turtlePos[2] + math.abs(turtlePos[3])
    local multiplier = 1
    if distance == 0 then
        distance = turtleLastPos[1] + turtleLastPos[2] + math.abs(turtleLastPos[3])
        multiplier = 2
    end
    local fuelLevel = turtle.getFuelLevel()

    local fuelBuffer = 100

    if fuelLevel > multiplier * distance + fuelBuffer then
        return
    end
    goToStart()
    offload()
    multiplier = 2

    print("Pls add fuel to turtle")

    while true do
        io.read()
        move.refuelProcess()
        fuelLevel = turtle.getFuelLevel()
        if fuelLevel > 2 * distance + fuelBuffer then
            break
        else
            print("Not enough fuel was added, pls try again")
        end
    end
    goToLastPosition()

end

--checks if turtle has an empty slot and unloads if not
local function checkAndUnload()
    for i=16, 1, -1 do
        if turtle.getItemCount(i) == 0 then
            return
        end
    end
    goToStart()
    print("Trying to offload")
    while not offload() do end
    checkAndRefuel()
    goToLastPosition()

end


if not areaX then
    areaX = 4
end
if not areaY then
    areaY = 5
end

local data = loadData(saveFilename)
if data then
    areaX, areaY = tonumber(data.area[1]), tonumber(data.area[2])
    turtlePos = { tonumber(data.pos[1]), tonumber(data.pos[2]), tonumber(data.pos[3]) }
    turtleLastPos = { tonumber(data.lastPos[1]), tonumber(data.lastPos[2]), tonumber(data.lastPos[3]) }
    turtleVec = { tonumber(data.vector[1]), tonumber(data.vector[2]), tonumber(data.vector[3]) }
    turtleLastVec = { tonumber(data.lastVector[1]), tonumber(data.lastVector[2]), tonumber(data.lastVector[3]) }
    workMode = tonumber(data.mode)
    targetBlock = tonumber(data.block)
end
if targetBlock == 2 then
    arrTargetBlocks = {"minecraft:gravel"}
elseif targetBlock == 3 then
    arrTargetBlocks = {"minecraft:sand"}
end

areaX = tonumber(areaX)
areaY = tonumber(areaY)
targetBlock = tonumber(targetBlock)

updateSaveData()
print("areaX: ", areaX, "   areaY: ", areaY)
print("pos: ", textutils.serialize(turtlePos))

if workMode == 2 then
    goToStart()
    print("Trying to offload")
    while not offload() do end
    checkAndRefuel()
    goToLastPosition()
end
if workMode == 3 then
    goToLastPosition()
end

digGravel()
while turtlePos[2] < areaY do
    if (turtlePos[2] % 2) == 0 then
        while turtlePos[1] < areaX - 1 do
            goForward()
            digGravel()
            checkAndRefuel()
            checkAndUnload()
        end
        if not (turtlePos[2] == areaY - 1) then
            turnRight()
            goForward()
            digGravel()
            turnRight()
            checkAndRefuel()
            checkAndUnload()
        else
            break
        end
    else
        while turtlePos[1] > 0 do
            goForward()
            digGravel()
            checkAndRefuel()
            checkAndUnload()
        end
        if not (turtlePos[2] == areaY - 1) then
            turnLeft()
            goForward()
            digGravel()
            turnLeft()
            checkAndRefuel()
            checkAndUnload()
        else
            break
        end
    end
end

goToStart()
offload()

-- delete file
local  command = "delete " .. saveFilename
local success, message = shell.run(command)