stripLeft

--[[

This program is an alternate version of stripmine.lua meant to be used with another turtle.
This one is responsible for making the left side of the strip mining tunnel
stripRight.lua is responsible for the right side.

]]

--[[ Constants ]]
JUNK = {
    "minecraft:cobbled_deepslate",
    "minecraft:cobblestone",
    "minecraft:tuff",
    "minecraft:dirt",
    "minecraft:gravel",
    "minecraft:granite",
    "minecraft:andesite",
    "minecraft:diorite",
    "minecraft:dripstone_block",
    "minecraft:pointed_dripstone",
    "minecraft:netherrack"
}

--[[ Functions]]

local fwd = function ()
    while not turtle.forward() do
        turtle.dig()
    end
    turtle.digUp()
    turtle.digDown()
end

local function branchFwd()
    while not turtle.forward() do
        turtle.dig()
    end
end

local function branch() -- Digs one branch and returns to starting position
    turtle.turnLeft()
    for i = 1, 5 do
        branchFwd()
        turtle.digDown()
    end
    for i = 1, 5 do
        turtle.back()
    end
    turtle.turnRight()
end

local function dropJunk() -- Drops junk
    for i = 1, 16 do
        turtle.select(i)
        if turtle.getItemCount() > 1 then
            local name = turtle.getItemDetail()["name"]
            for j = 1, #JUNK do
                if name == JUNK[j] then
                    turtle.dropDown()
                end
            end
        end
    end
end

--[[ Main ]]

-- Check if the turtle has enough torches in slot 1
if turtle.getItemDetail(1)["name"] ~= "minecraft:torch" then
    print("Please place torches in slot 1 and try again")
    return
end

if turtle.getItemCount(1) < 32 then
    print("Please place 32 torches in slot 1 and try again")
    return
end

if turtle.getFuelLevel() < 562 then
    print("Please refuel to 562 and try again")
    return
end

-- Dig out the main tunnel
fwd() -- First column of tunnel
for i = 1, 124 do
    fwd()
end

dropJunk()

for i = 1, 124 do
    turtle.back()
end

-- Place torches
turtle.select(1) -- Select the torches

turtle.placeUp() -- Place first torch

for i = 0, 124 do
    if i % 4 == 0 then
        turtle.placeUp()
        if i ~= 0 then
            branch()
        end
    end
    if i ~= 124 then
        fwd()
    end
end

dropJunk()

for i = 0, 124 do
    turtle.back()
end