-- **********************************************************************************
-- **
-- **   Minecraft Chopping Turtle v1.1.1.a1 by Psychic__Panda
-- **   ----------------------------------------------------
-- **
-- **           ************************************************************************
-- **           *** THIS IS ALPHA VERSION 1.1.1 OF CHOPIT
-- **           ***
-- **           *** You may also want to try chopit 1.1: pastebin get rg7Dv2e6 chopit
-- **           ************************************************************************
-- **
-- **   Recommend:
-- **           label set myTurtle
-- **
-- **  Get chopit:
-- **           pastebin get b29Czjuz chopit
-- **
-- **  Usage:
-- **           chopit help
-- **                   Print help and exit
-- **           chopit
-- **                   Use defaults: 1 tree and sweepRadius of 3
-- **           chopit 1 3
-- **                   Specify 1 tree and sweepRadius of 3. See below for details.
-- **
-- **  Overview:
-- **           A nearly perpetual logging turtle. This turtle will plant, fertilize, and
-- **           chop down a specified number of trees,
-- **           planted in a line in front of and extending to the right of the turtle.
-- **           When your turtle runs low on fertilizer, saplings, or fuel, it will go
-- **           get more from specified locations.
-- **           It will dump its inventory into a chest at a specified location.
-- **           You indicate how many trees to plant and chop down each iteration. After chopping down the trees, the
-- **           turtle does a sweep of the area sucking up fallen saplings.
-- **           This is very useful when when you are running a perpetual logging operation,
-- **           to replenish saplings. If you are using a conveyor belt or slime channel to gather saplings,
-- **           set enableSweep to false, but leave the sweep radius at its default, otherwise the chests will get in the
-- **           way.
-- **
-- **
-- **           chopit [plantTrees] [sweepRadius]
-- **                   plantTarget is the target number of trees to plant.
-- **                           If it doesn't have enough saplings the turtle will attempt to get
-- **                           more saplings. It will then plant the number specified or
-- **                           the number of saplings you have (less one to save
-- **                           the place in its inventory) whichever is less.
-- **                           Default is 1 sapling. Max is 8.
-- **           sweepRadius is the number of spaces around the planted trees the turtle will
-- **                           sweep for fallen saplings. Default is 3.
-- **
-- **   Set Up Example:
-- **           In this example the turtle will plane 1 tree and sweep a radius of 3 around the tree
-- **           chopping it down. Either of the following commands will work the same:
-- **
-- **           chopit
-- **
-- **           chopit 1 3
-- **
-- **                   Inventory
-- **                           Start out with the following items in the following inventory
-- **                           slots:
-- **                           W: one block of wood. This saves the inventory spot for wood.
-- **                           B: A stack of Bonemeal or other fertilizer. The turtle will never use the last one.
-- **                           S: A stack of saplings (preferably Fir, Pine or Spruce that only grow up. (Not oak,
-- **                                   eucalyptus, jungle wood, or sequoia!). The turtle will never use the last one.
-- **                           F: A stack of fuel, such as charcoal or coal, much more efficient than wood. The
-- **                                   turtle will never use the last one. Recommend charcoal.
-- **                           You cannot change fuel, fertilizer, or sapling type mid-run.
-- **
-- **                                           W . . .
-- **                                           . . . .
-- **                                           . . . .
-- **                                           . B S F
-- **
-- **
-- **                   Map
-- **                           The following shows the setup for the sweep radius of 3. The Bonemeal/Fertilizer is located
-- **                           Sweepdistance + 1 to the left of the turtle.
-- **                           The turtle starts out at T. It checks for fuel
-- **                           and refuels if necessary. If there is no fuel in
-- **                           its inventory, it tries to get fuel from location F. Note that if the turtle starts out with no
-- **                           fuel in its inventory and no internal fuel it will not be able to get to the fuel barrel.
-- **                           The turtle then tries to plant a sapling. If it has 1 or 0 saplings it will try to get some from
-- **                           location S. It will plant the sapling and try to fertilize it. No fertilizer? It will try
-- **                           to get some from  B (B for bonemeal, but it can use any fertilizer. Note that
-- **                           fertilizer doesn't work on rubber trees. If you want to try this with Rubber trees, set enableFertilizer
-- **                           to false.
-- **
-- **
-- **
-- **                    . . . . . . . . . .
-- **                    . . . . . . . . . .
-- **                    . . . . . . . . . .
-- **                    . . . . . . . . . .
-- **                    . . . . . X . . . .
-- **                    B . . . . T . . . .
-- **                    S . . . . . . . . .
-- **                    C . . . . . . . . .
-- **                    W . . . . . . . . .
-- **                    F
-- **
-- **  Notes:
-- **           You can set up a transport pipe system to sort the items in the Chest, sending the saplings to the
-- **           Sapling barrel, and Wood blocks to a Wood Barrel. You can also set up a furnace to create more Charcoal from the
-- **           Wood blocks, with an Emerald pipe to only take part of the wood, if you have another use for it.
-- **
-- **           Works with FTB TechWorld 2 and Minecraft 1.6.4 and later (probably).
-- **
-- **           You can change enableSweep in the variables below, as well as StorageX, SaplingY, FertilizerY, ChestY, WoodY, and FuelY
-- **
-- **  Known Bugs:
-- **       If you set the sweepRadius to 0 but leave enableSweep true, it will suck items out of the fertilizer storage.
-- **
-- **  Change Log:
-- **       Changed moving around algorithms to be more efficient.
-- **       Changed location of fertilizer to be on the outside. Easier to reload.
-- **       Better messages. More Testing and Debug variables. Help added.
-- **
-- *********************************************************************************************************************

local args = { ... }
TESTING=false

-- Error and notification variables
ALWAYS, ERROR, WARNING, DEBUG = 0, 1, 2, 3
MSG_LEVEL=WARNING

--Sweeping variables
enableSweep = true
sweepRadius = 3

--Storage variables
StorageX = 0-sweepRadius-1
FertilizerY, SaplingY, ChestY, WoodY, FuelY = 0, -1, -2, -3, -4
--FurnaceY, FurnaceZ = -5, 1

-- Planting variables
plantTarget=1
plantMax=8

-- Growing variables
enableFertilizer = true
if enableFertilizer then
    sleepTime=2.0
    maxTries=5
else
    maxTries=60
    sleepTime=5
end

-- Inventory variables
local blockSlot, fertilizerSlot, treeSlot, fuelSlot=1, 14, 15, 16

--refueling variables
fuelMin=500

-- position and direction variables
--  **directions are relative to original facing direction 'north'
positionX, positionY, positionZ = 0, 0, 0
UP, DOWN, FORWARD = "up", "down", "forward"
NORTH, EAST, SOUTH, WEST = 0, 1, 2, 3
facing=NORTH

if (#args > 0) then
    if args[1]=="help" then
        printMsg("Usage: chopit [numberTrees] [sweepRadius]",ALWAYS);
        printMsg("where [numberTrees} is the number of trees",ALWAYS);
        printMsg("to plant each time, default is 1.",ALWAYS);
        printMsg("Max is "..plantMax..".",ALWAYS);
        printMsg("and [sweepRadius} is the number of blocks",ALWAYS);
        printMsg("around the tree to sweep for saplings, default is 4.",ALWAYS);

        return
    else
        plantTarget = tonumber(args[1])
        if (plantTarget>plantMax) then plantTarget = plantMax end
    end
end
if (#args > 1) then sweepRadius= tonumber(args[2]) end

-- ********************************************************************************** --
-- Check that turtle has fuel
-- ********************************************************************************** --
function doRefuel()

    local fuelLevel = turtle.getFuelLevel()
    printMsg("Fuel level at "..fuelLevel,WARNING)
    fuelLeft=turtle.getItemCount(fuelSlot)-1

    if ((fuelLevel ~= "unlimited") and (fuelLevel<fuelMin)) then
        if (fuelLeft <= 1) then
        printMsg("Critically low on fuel",WARNING)
            OK = getFuel()
            if not OK then return false end
            fuelLeft=turtle.getItemCount(fuelSlot)-1
        end
        printMsg("Refuelling",WARNING)
        turtle.select(fuelSlot)
        turtle.refuel(fuelLeft)
        OK = getFuel()
    else
    printMsg("Plenty of fuel",WARNING)
    end

    return true

end

-- ********************************************************************************** --
-- Plant trees in a straight line
-- ********************************************************************************** --
function doPlant()

    --see if there are enough saplings
    treesLeft = turtle.getItemCount(treeSlot)-1
    if (treesLeft < plantTarget) then
        printMsg("Not enough saplings: "..treesLeft..". Getting saplings",WARNING)
        if not getTrees() then return false end
    end

    treesLeft = turtle.getItemCount(treeSlot)-1
    if (treesLeft < plantTarget) then
        plantTrees = treesLeft
    else
        plantTrees = plantTarget
    end

    printMsg("Planting "..plantTrees,WARNING)
    for thisTree=0,plantTrees-1 do
        doMoveTo(thisTree,0,0,NORTH)
        turtle.select(treeSlot)
        turtle.place()
    end
    return true

end

-- ********************************************************************************** --
-- Grow a Tree
-- ********************************************************************************** --
function doGrow()

    for thisTry=1,maxTries do

        if turtle.detectUp() then turtle.digUp() end
        doChangePos(UP,1)
        if turtle.detect() then
            doChangePos(DOWN,1)
            return true
        end
        doChangePos(DOWN,1)

        if enableFertilizer then
            fertilizerLeft = turtle.getItemCount(fertilizerSlot)-1
            if (fertilizerLeft<1) then
                printMsg("Out of fertilizer: "..fertilizerLeft..". Getting fertilizer.",WARNING)
                if not getFertilizer() then return false end
            end
            turtle.select(fertilizerSlot)
            turtle.place()
        end
        sleep(sleepTime)
    end

    return true

end

-- ********************************************************************************** --
-- Chop it down
-- ********************************************************************************** --
function doChop()
    --chop it down
    turtle.dig()
    doMoveTo(positionX,positionY+1,0,facing)
    while turtle.detectUp() do
        turtle.digUp()
        doChangePos(UP,1)
    end

    --go back down to the ground
    doMoveTo(positionX,positionY,0,NORTH)
end

-- ********************************************************************************** --
-- Get tree saplings from chest or barrel
-- ********************************************************************************** --
function getFertilizer()

    returnToX,returnToY = positionX,positionY

    doMoveTo(StorageX,FertilizerY,0,WEST,true,true)
    turtle.select(fertilizerSlot)
    turtle.suck()

    doMoveTo(returnToX,returnToY,0,NORTH,true,true)
    return (turtle.getItemCount(fertilizerSlot)>1)

end

-- ********************************************************************************** --
-- Get tree saplings from chest or barrel
-- ********************************************************************************** --
function getTrees()

    doMoveTo(StorageX,SaplingY,0,WEST,true,true)
    turtle.select(treeSlot)
    turtle.suck()
    return (turtle.getItemCount(treeSlot)>1)

end

-- ********************************************************************************** --
-- Get fuel from chest or barrel
-- ********************************************************************************** --
function getFuel()

    -- Move to the chest and get fuel into the fuel slot
    doMoveTo(StorageX,FuelY,0,WEST,true,true)
    turtle.select(fuelSlot)
    turtle.suck()
    return (turtle.getItemCount(fuelSlot)>1)

end

-- ********************************************************************************** --
-- Sweep Up any floating saplings
-- ********************************************************************************** --
function doSweep()

    thisY = 1 - sweepRadius
    thisDir=NORTH

    for thisX=plantTarget+sweepRadius-1,-sweepRadius,-1 do
        doMoveTo(thisX,thisY,0,WEST,true,true)
        thisY=2-thisY
        doMoveTo(thisX,thisY,0,thisDir,true,true)
        thisDir=2-thisDir
    end
end

-- ********************************************************************************** --
-- Drop Off Stuff in Chest
-- ********************************************************************************** --
function doDropOff()

    doMoveTo(StorageX,ChestY,0,WEST)

    --drop off all but one wood block (for stacking)
    lastSlot=fertilizerSlot
    if enableFertilizer then lastSlot=lastSlot-1 end
    for thisSlot=1,lastSlot do
        turtle.select(thisSlot)
        if (turtle.getItemCount(thisSlot) > 0) then
            if (thisSlot==blockSlot) then
                turtle.drop(turtle.getItemCount(thisSlot)-1)
            else
                turtle.drop()
            end
        end
    end

end

-- ********************************************************************************** --
-- Move to a new Position, and face new direction
-- ********************************************************************************** --
function doMoveTo(newX,newY,newZ,newFacing,doSuck,doClear)

    doSuck=doSuck or false
    doClear=doClear or false

    printMsg("Start X: "..positionX.." Y: "..positionY.." Z: "..positionZ,DEBUG)
    printMsg("Facing: "..facing,DEBUG)

    -- if moving north face north move north
    -- elseif moving south face south move south
    changeY = newY-positionY
    if (changeY>0) then
        doChangeDir(NORTH)
        if (doClear and turtle.detect()) then turtle.dig() end
        doChangePos(FORWARD,changeY,doSuck)
    elseif (changeY<0) then
        doChangeDir(SOUTH)
        if (doClear and turtle.detect()) then turtle.dig() end
        doChangePos(FORWARD,-changeY,doSuck)
    end

    -- if moving east: face east and move east
    -- elseif moving west face west and move west
    changeX = newX-positionX
    if (changeX>0) then
        doChangeDir(EAST)
        if (doClear and turtle.detect()) then turtle.dig() end
        doChangePos(FORWARD,changeX,doSuck)
    elseif (changeX<0) then
        doChangeDir(WEST)
        if (doClear and turtle.detect()) then turtle.dig() end
        doChangePos(FORWARD,-changeX,doSuck)
    end

    -- if moving up move up
    -- elseif moving down move down
    changeZ = newZ-positionZ
    if (changeZ>0) then
        doChangePos(UP,changeZ,doSuck)
    elseif (changeZ<0) then
        doChangePos(DOWN,-changeZ,doSuck)
    end

    --face new direction
    doChangeDir(newFacing)

    printMsg("Finish X: "..positionX.." Y: "..positionY.." Z: "..positionZ,DEBUG)
    printMsg("Facing: "..facing,DEBUG)

end

-- ********************************************************************************** --
-- Move up down, or FORWARD, Suck up floating items, and keep track of distance moved
-- ********************************************************************************** --
function doChangePos(direction,distance,doSuck)

    doSuck=doSuck or false
    progress=0
    distance=distance or 1

    if (tonumber(distance) < 0) then

        printMsg("doChangePos:: Negative distance: "..distance,ERROR)

    elseif ((direction==FORWARD) or (direction==UP) or (direction==DOWN)) then


        if (direction==UP) then

            for d=1,distance do
                if doSuck then turtle.suckUp() end
                if turtle.up() then progress=progress+1 end
            end
            positionZ = positionZ + progress

        elseif (direction==DOWN) then

            for d=1,distance do
                if doSuck then turtle.suckDown() end
                if turtle.down() then progress=progress+1 end
            end
            positionZ = positionZ - progress

        else
            for d=1,distance do
                if doSuck then turtle.suck() end
                if turtle.forward() then progress=progress+1 end
            end
            if (facing==EAST) then
                positionX = positionX + progress
            elseif (facing==WEST) then
                positionX = positionX - progress
            elseif (facing==NORTH) then
                positionY = positionY + progress
            elseif (facing==SOUTH) then
                positionY = positionY - progress
            end
        end
    else
        printMsg("doChangePos:: Unknown direction: "..direction,ERROR)
    end

    return progress

end

-- ********************************************************************************** --
-- Face towards direction
-- ********************************************************************************** --
function doChangeDir(direction)

    direction=direction or facing

    success=false
    if ((direction<0) or (direction>3)) then

        printMsg("doChangeDir:: "..direction.." not defined.",ERROR)
        return success

    end

        --how much to turn by
    turnBy=direction-facing

    -- amount is cyclic. make sure it's positive
    if turnBy<0 then turnBy=turnBy+4 end

    -- already facing that direction
    if (turnBy==0) then

        success = true

    --turn around
    elseif (turnBy==2) then

        success = turtle.turnLeft()
        if success then
            success = turtle.turnLeft()
        end

    --turn right
    elseif (turnBy == 1) then

        if (turtle.turnRight()) then
            success=true
        end

    -- turn left
    elseif (turnBy == 3) then

        if (turtle.turnLeft()) then
            success=true
        end

    end

    -- update direction
    if success then
        facing = direction
    end

    -- we did it!
    return success

end

-- ********************************************************************************** --
-- Write message
-- ********************************************************************************** --

function printMsg(msg, level)

    -- default message level is 3(DEBUG)
    level = level or 3
    msg = msg or ""

    if (level <= MSG_LEVEL) then
        print(msg)
    end

end

-- ********************************************************************************** --
-- The main loop
-- ********************************************************************************** --

printMsg("Chopit Version 1.1 by psychic__panda",ALWAYS)
printMsg("Planting a row of "..plantTarget.." trees.",ALWAYS)
if enableSweep then
    printMsg("Sweeping for saplings.",ALWAYS)
else
    printMsg("Not sweeping for saplings.",ALWAYS)
end
if enableFertilizer then
    printMsg("Fertilizer enabled.",ALWAYS)
else
    printMsg("Fertilizer not enabled.",ALWAYS)
end
printMsg("Chests should be ".. -1-sweepRadius .." to my left.",ALWAYS)

OK = true
while OK do
    OK = doRefuel()
    if OK then
        OK = doPlant()

        if (OK) then
            for thisTree=0,(plantTrees-1) do
                doMoveTo(thisTree,0,0,NORTH)
                OK = doGrow()
                if OK then doChop() end
            end
            if enableSweep then doSweep() end
        end
        doDropOff()
        doMoveTo(0,0,0,NORTH)
    end
end