placement Turtle 1.0

-- Session Persistance
if(not fs.exists('startup')) then
local file = io.open('startup', 'w')
file:write("shell.run(\'placer\')")
file:close()
end

-- Functions
function refuel(fuel)
        if(turtle.getFuelLevel() >= fuel) then
                return true
        end
        print('Refueling')
        turtle.select(9)
        while(not turtle.placeUp()) do
                turtle.digUp()
                turtle.attackUp()
        end
        turtle.select(16)
        while(not turtle.suckUp()) do
                sleep('No fuel found. Sleeping.', 10)
        end
        turtle.refuel(64)
        turtle.select(9)
        turtle.digUp()
        if(turtle.getFuelLevel() <= fuel) then
                sleep('Refueling failed!', 10)
                dump()
                refuel(200)
        end
end

-- Refuel & Variables
refuel(500)
all = 0

-- Endless Placing Process
while(true) do

-- Fill the turtle with materials
if turtle.getItemCount(1) == 0 then
print('Obtaining Destination Chests for Slot 1')
turtle.select(6)
while(not turtle.placeUp()) do
turtle.digUp()
turtle.attackUp()
end
turtle.select(1)
while(not turtle.suckUp()) do
print("No Chests found. Sleeping.")
sleep(10)
end
turtle.select(6)
turtle.digUp()
end

if turtle.getItemCount(2) == 0 then
print('Obtaining Fuel Chests for Slot 2')
turtle.select(7)
while(not turtle.placeUp()) do
turtle.digUp()
turtle.attackUp()
end
turtle.select(2)
while(not turtle.suckUp()) do
print("No Chests found. Sleeping.")
sleep(10)
end
turtle.select(7)
turtle.digUp()
end

if turtle.getItemCount(3) == 0 then
print('Obtaining Turtles for Slot 3')
turtle.select(8)
while(not turtle.placeUp()) do
turtle.digUp()
turtle.attackUp()
end
turtle.select(3)
while(not turtle.suckUp()) do
print("No Turtles found. Sleeping.")
sleep(10)
end

print("Error4")

turtle.select(8)
turtle.digUp()
end

-- Check how much turtles are available
x = turtle.getItemCount(1)
y = turtle.getItemCount(2)
z = turtle.getItemCount(3)
if (x>y) then
    if (y>z) then
        turtles = z
    else turtles = y
    end
else
    if (x>z) then
        turtles = z
    else turtles = x
    end
end

-- Place them Turtles
for i = 1,turtles do

-- Place a Turtle & load it
turtle.turnLeft()
turtle.select(3)
turtle.place()
turtle.select(1)
turtle.drop(1)
turtle.select(2)
turtle.drop(1)
turtle.turnRight()

-- Place the Drive & load it
turtle.back()
turtle.select(4)
turtle.place()
turtle.select(5)
turtle.drop(1)

-- Start the Turtle
turtle.up()
turtle.forward()
turtle.turnLeft()
turtle.forward()
peripheral.call("bottom", "turnOn")
turtle.back()
turtle.turnRight()
turtle.back()
turtle.down()

-- Unload Drive & Remove it
turtle.select(5)
turtle.suck()
turtle.select(4)
turtle.dig()
turtle.suck()

-- Move to next turtle and refuel
turtle.forward()
turtle.forward()
refuel(500)

-- End Turtle Placing
end
all = all + turtles
print('Number of Turtles placed: '..all)

end