powerGuard

local speaker=peripheral.wrap("right")
rednet.open("left")
local lastPlayer=nil
local pos={["x"]=0,["y"]=0,["z"]=0}
local homePos={["x"]=-2489,["y"]=49,["z"]=2703}
local teleporters={}
local talking=true
local warningLevel=5

if fs.exists("database")==false then
    shell.run("pastebin get PdhBaBdZ database")
end
local success=os.loadAPI("database")

if success==false or database==nil then
    error "The database system failed to load"
end

if fs.exists("databases/data")==false then
    database.createDataFile("data")
end

if fs.exists("databases/position")==false then
    database.createDataFile("position")
end

function outputMessage(message,range,language)
    if talking==true and type(message)=="string" then
        if range==nil then
            speaker.speak(message)
        elseif lanugage==nil then
            speaker.speak(message,range)
        else
            speaker.speak(message,range,language)
        end
    end
end

function changePos(key,change)
    if pos[key]==nil then
        pos[key]=0
    end
    pos[key]=pos[key]+change
    database.setData("position",key,pos[key])
end

function updatePos(key)
    database.setData("position",key,pos[key])
end

function getFilePos()
    if database.getData("position","x")==false then
        pos.x=0
        pos.y=0
        pos.z=0
        database.setData("position","x",0)
        database.setData("position","y",0)
        database.setData("position","z",0)
    else
        pos.x=database.getData("position","x")
        pos.y=database.getData("position","y")
        pos.z=database.getData("position","z")
    end
end

getFilePos()

function move(direction,blocks)
    if direction=="up" then
        for i=1,blocks do
            moved=turtle.up()
            if moved==true then
                changePos("y",1)
            else
                return false
            end
        end
    elseif direction=="down" then
        for i=1,blocks do
            moved=turtle.down()
            if moved==true then
                changePos("y",-1)
            else
                return false
            end
        end
    elseif direction=="back" then
        local facing=string.lower(getFacing())
        for i=1,blocks do
            local moved=turtle.back()
            if moved==false then return false end
            if facing=="north" then
                changePos("z",1)
            elseif facing=="east" then
                changePos("x",-1)
            elseif facing=="south" then
                changePos("z",-1)
            elseif facing=="west" then
                changePos("x",1)
            end
        end
    else
        local facing=string.lower(getFacing())
        for i=1,blocks do
            local moved=turtle.forward()
            if moved==false then return false end
            if facing=="north" then
                changePos("z",-1)
            elseif facing=="east" then
                changePos("x",1)
            elseif facing=="south" then
                changePos("z",1)
            elseif facing=="west" then
                changePos("x",-1)
            end
        end
    end
    return true
end

local facingTable={
    ["north"]=1,
    ["east"]=2,
    ["south"]=3,
    ["west"]=4,
}

local facingTable2={
    [0]="west","north","east","south","west","north"
}

function turn(direction)
    if direction=="right" then
        turtle.turnRight()
        local currentFacingID=facingTable[facingDirection]
        facingDirection=facingTable2[currentFacingID+1]
    elseif direction=="left" then
        turtle.turnLeft()
        local currentFacingID=facingTable[facingDirection]
        facingDirection=facingTable2[currentFacingID-1]
    end
end

function setFacing(facing)
    local facing=string.lower(facing)
    local currentFacing=string.lower(getFacing())
    if facing==currentFacing then
        return
    else
        local currentFacingIndex=facingTable[currentFacing]
        local facingIndex=facingTable[facing]
        local turns=facingIndex-currentFacingIndex
        if turns<0 then
            turns=turns+4
        end
        if turns==3 then
            turn("left")
        else
            for i=1,turns do
                turn("right")
            end
        end
    end

end

function getFacing()
    return facingDirection
end

function getCompassFacing()
    turtle.select(2)
    turtle.equipRight()
    local compass=peripheral.wrap("right")
    local heading=compass.getFacing()
    turtle.select(2)
    turtle.equipRight()
    facingDirection=heading
end
getCompassFacing()

function outputMessage(message,range,language)
    if talking==true and type(message)=="string" then
        if range==nil then
            speaker.speak(message)
        elseif lanugage==nil then
            speaker.speak(message,range)
        else
            speaker.speak(message,range,language)
        end
    end
end

function pathFind(x,y,z)
    local yDistance=(pos.y-y)*-1
    print("Y axis travel distance : "..yDistance)
    local yTravel=true
    if yDistance>0 then
        local yTravel=move("up",yDistance)
    elseif yDistance<0 then
        local yTravel=move("down",yDistance*-1)
    end
    local xDistance=(pos.x-x)*-1
    print("X axis travel distance : "..xDistance)
    local xTravel=true
    if xDistance>0 then
        setFacing("east")
    elseif xDistance<0 then
        setFacing("west")
        xDistance=xDistance*-1
    end
    xTravel=move("forward",xDistance)
    local zDistance=(pos.z-z)*-1
    print("Z axis travel distance : "..zDistance)
    local zTravel=true
    if zDistance>0 then
        setFacing("south")
    elseif zDistance<0 then
        setFacing("north")
        zDistance=zDistance*-1
    end
    zTravel=move("forward",zDistance)
    if xTravel==false or zTravel==false or yTravel==false then
        pathFind(x,y,z)
    end
end

function getWood()
    pathFind(-2489,52,2703)
    pathFind(-2508,52,2705)

    pathFind(-2508,53,2705)
    repeat
        rednet.broadcast("open up","turtleShaft")
        local id,message,protocol=rednet.receive(1)
    until message=="I have accepted your request!" and protocol=="returnMessage"
    sleep(0.1)
    pathFind(-2508,61,2705)
    sleep(2)
    pathFind(-2508,63,2705)


    pathFind(pos.x,pos.y+8,pos.z)
    pathFind(-2494,pos.y,2664)
    pathFind(-2494,64,2664)
    setFacing("west")
    turtle.suck(64)
    pathFind(pos.x,pos.y+8,pos.z)
    pathFind(-2508,pos.y,2705)

    pathFind(-2508,64,2705)
    repeat
        rednet.broadcast("open down","turtleShaft")
        local id,message,protocol=rednet.receive(1)
    until message=="I have accepted your request!" and protocol=="returnMessage"
    sleep(0.1)
    pathFind(-2508,62,2705)
    sleep(2)
    pathFind(-2508,54,2705)

    pathFind(-2508,51,2705)
    pathFind(-2517,51,2706)
    pathFind(-2517,50,2706)
    turtle.select(3)
    turtle.dropDown(64)


end

function goHome()
    pathFind(-2489,52,2703)
    pathFind(-2489,49,2703)
end

function getToast()
    pathFind(-2527,52,2704)
    pathFind(-2527,50,2704)
    turtle.suckDown(64)
    pathFind(-2527,52,2704)
    pathFind(-2489,51,2705)
    turtle.select(3)
    turtle.dropDown(64)
end

function powerGuard()
    local level=redstone.getAnalogInput("left")
    return level
end

function main()
    if math.floor(pos.x)~=math.floor(homePos.x) or math.floor(pos.y)~=math.floor(homePos.y) or math.floor(pos.z)~=math.floor(homePos.z) then
        outputMessage("I'm not at my home position!")
        sleep(2)
        outputMessage("My position is : "..pos.x..","..pos.y..","..pos.z)
        sleep(8)
        outputMessage("My home position is : "..homePos.x..","..homePos.y..","..homePos.z)
        sleep(15)
        return
    end
    if getFacing()~="west" then
        setFacing("west")
    end
    local powerLevels=powerGuard()
    print(powerLevels)
    if powerLevels<warningLevel then
        outputMessage("Warning, oxygen production power levels are nearly depleted!")
        getWood()
        getToast()
        goHome()
        sleep(240)
    end
    sleep(3)
end

function splitString(sourceString,splittingChar,index)
    results={}
    currentWord=""
    for i=1,string.len(sourceString) do
        letter=string.sub(sourceString,i,i)
        if letter==splittingChar then
            results[#results+1]=currentWord
            currentWord=""
        else
            currentWord=currentWord..letter
        end
    end
    results[#results+1]=currentWord
    return results[index]
end

--[[os.startTimer(1)
event=os.pullEvent()
if event=="char" then
    pos.x=-2489
    pos.y=49
    pos.z=2703
    database.setData("position","x",pos.x)
    database.setData("position","y",pos.y)
    database.setData("position","z",pos.z)
    print("Set to home position!")
end
print(event..":")]]
while true do
    main()
end