go (direct turtle commands) 2020/11/25

version = 20201125.1115
--[[
    -- pastebin get xQqK3VcK go.lua
    last updated 05/09/2020
    Will auto-download clsTurtle.lua
    Used to move turtle in multiple directions
    Use: go in command prompt
    keys:
    q = quit
    e = slot
    1 - 0 select slot
    w = forward
    a = turnLeft
    d = turnRight
    s = back
    some versions of MC or CC use different key constants:
    1.12.2 keys.one=2, keys.two=3...  keys.zero=11
    1.16.2 keys.one=49 keys.two=50..  keys.zero=48
]]

args = {...} -- eg go r1f5u2

local kv = {}
kv[keys.zero]   = "0"
kv[keys.one]    = "1"
kv[keys.two]    = "2"
kv[keys.three]  = "3"
kv[keys.four]   = "4"
kv[keys.five]   = "5"
kv[keys.six]    = "6"
kv[keys.seven]  = "7"
kv[keys.eight]  = "8"
kv[keys.nine]   = "9"

function checkArgs()
    local path = ""
    if args[1] ~= nil then
        path = args[1]
    end
    return path
end

function checkLibs(libDir, filename)
    local fileExists = false
    if fs.exists(libDir) then
        if not fs.isDir(libDir) then
            fs.move(libDir, libDir.."Renamed")
            fs.makeDir(libDir)
        end
    else
        fs.makeDir(libDir)
    end
    if fs.exists(fs.combine(libDir, filename)) or fs.exists(fs.combine(libDir, filename..".lua")) then
        fileExists = true
    end
    return fileExists
end

function clear(setCP)
    term.clear()
    term.setCursorPos(1, 1)
    if setCP then
        term.write("use: f u d b r l s(lot) p(lace) x(dig)")
        term.setCursorPos(1, 2)
    end
end

function getCommand()
    local cmd = ""
    local minNum = 0
    local maxNum = 9
    local col, row = term.getCursorPos()
    if keys.one == 49 then  --newer versions
        minNum = 48
        maxNum = 57
    end
    term.write("cmd?_")
    while true do
        local event, key = os.pullEvent("key")
        if key == keys.q then -- quit
            cmd = ""
            break
        elseif key == keys.s then -- user wants to select slot no
            cmd = "s"
            term.setCursorPos(1, row)
            term.write("slot no? "..cmd.."_")
        elseif key == keys.p or key == keys.x then -- user wants to place or excavate
            cmd = keys.getName(key)
            term.setCursorPos(1, row)
            term.write("direction u=0 f=1 d=2? "..cmd.."_")
        elseif key == keys.f or key == keys.b or key == keys.u or key == keys.d or key == keys.l or key == keys.r then
            cmd = keys.getName(key) -- eg f
            term.setCursorPos(1, row)
            term.write("no? "..cmd.."_")
        elseif key >= minNum and key <= maxNum then -- 1 to 0 chosen = 49 to 58
            --check if cmd is empty
            if string.len(cmd) > 0 then -- not empty so build command
                local c = string.sub(cmd, 1, 1)
                local num = kv[key]
                if c == "s" then -- select slot
                    if cmd == "s" then
                        cmd = "s"..num
                        term.setCursorPos(1, row)
                        term.write("0 to 6 or enter? "..cmd.."_")
                    else
                        if key + offset - 1 <= 6 then -- allow 0 to 6 only
                            cmd = cmd..num
                            break
                        end
                    end
                elseif c == "p" or c == "x" then
                    if key == keys.zero then
                        cmd = c.."0"
                        break
                    elseif key == keys.one or key == keys.two then
                        cmd = c..num
                        break
                    end
                elseif c == "r" or c == "l" then
                    cmd = cmd..num
                    break
                elseif  c == "f" or c == "b" or c == "u" or c == "d" or c == "r" or c == "l" then
                    cmd = cmd..num
                    term.setCursorPos(1, row)
                    term.write("0-9 or Enter? "..cmd.."_")
                end
            end
        elseif key == keys.enter then -- command finished
            break
        end
    end
    clear()
    return cmd
end

function main()
    clear(false)
    local doContinue = true
    if not checkLibs("lib", "clsTurtle") then
        -- use pastebin get to download clsTurtle to libs folder
        print("Missing clsTurtle.lua in libs directory")
        print("Attempting to obtain from Pastebin...")
        if shell.run("pastebin","get","tvfj90gK","lib/clsTurtle.lua") then
            print("clsTurtle.lua installed from Pastebin")
            sleep(2)
        else
            print("failed to install clsTurtle.lua from Pastebin")
            doContinue = false
        end
    end
    if doContinue then
        print("Current fuel: "..turtle.getFuelLevel().." / "..turtle.getFuelLimit())
        T = require("lib.clsTurtle"):new()
        local action,  modifier
        local cmd = checkArgs() -- empty string or cmd eg go r1f5u2
        local direction = {"up", "forward", "down"}
        if cmd ~= "" then
            T:go(cmd)
        else
            sleep(2)
            clear(true)
            while true do
                cmd = string.upper(getCommand())
                action = string.sub(cmd, 1, 1)
                modifier = string.sub(cmd, 2)
                if cmd == "" then
                    break
                else
                    if action == "S" then --select slot
                        turtle.select(tonumber(modifier))
                    elseif action == "X" then --dig
                        T:dig(direction[modifier + 1])
                    elseif action == "P" then --place
                        --place current selected slot contents
                        --T:place(blockType, damageNo, direction, leaveExisting)
                        local slotContains, slotCount, slotDamage = T:getSlotContains(turtle.getSelectedSlot)

                        print("Place "..slotContains.." count: "..slotCount.." damage: "..tostring(slotDamage).." Enter")
                        read()
                        T:place(slotContains, slotDamage, direction[modifier + 1], false)
                    else
                        T:go(cmd)
                    end
                end
            end
        end
    end
end

main()