function plant()
    im = require("inventorymanager")
    mosscount = im.pull("minecraft:moss_block",1)
    mealcount = im.pull("minecraft:bone_meal",2)
    if mosscount <= 1 then
        return false, "not enough moss"
    end
    if mealcount <= 16 then
        return false, "not enough bone meal"
    end
    if turtle.getFuelLevel() < 500 then
        return false, "not enough fuel"
    end
    while turtle.down() do
        height = height+1
    end
    turtle.up()
    for i = 1,4 do
        for j = 1,5 do
            turtle.forward()
            turtle.forward()
            turtle.select(1)
            turtle.placeUp()
            turtle.select(2)
            turtle.placeUp()
            turtle.digUp()
            turtle.forward()
            --turtle.forward()
        end
        if math.mod(i,2) == 1 then
            turtle.turnRight()
            turtle.forward()
            turtle.forward()
            turtle.forward()
            turtle.forward()
            turtle.turnRight()
        else
            turtle.turnLeft()
            turtle.forward()
            turtle.forward()
            turtle.forward()
            turtle.forward()
            turtle.turnLeft()
        end
    end
    turtle.turnLeft()
    for i = 1,16 do
        turtle.forward()
    end
    turtle.turnRight()
    return true        
end
function clear()
    turtle.digDown()
    turtle.down()
    for i = 1,16 do
        for j = 1,15 do
            turtle.dig()
            turtle.digDown()
            turtle.forward()
        end
        turtle.digDown()
        if math.mod(i,2) == 1 then
            turtle.turnRight()
            turtle.dig()
            turtle.forward()
            turtle.turnRight()
        else
            turtle.turnLeft()
            turtle.dig()
            turtle.forward()
            turtle.turnLeft()
        end
    end
    turtle.turnLeft()
    for i = 1,16 do
        turtle.forward()
    end
    turtle.turnRight()
    return true
end
        
height = 0
turtle.forward()
if plant() then
    clear()
end
for i = 1,height do
    turtle.up()
end
turtle.back()