Jumpdrive Script by GamePlayer

Jumpdrive Script

--[[
    ##################################
    #  Copyright C 2022 GamePlayer   #
    # GNU GENERAL PUBLIC LICENSE 3.0 #
    ##################################
--]]

--[[
    This script is for Luacontroller in Minetest game.
    It's controlling Jumpdrive block by Terminal (LCD + Keyboard).
    It requires:
        - Jumpdrive on channel 'jumpdrive' (+ power);
        - Luacontroller;
        - Digilines;
        - LCD (or something similar) on channel 'LCD';
        - Keyboard (or something similar) on channel 'kb'.

    It allows:
        - Saving home location;
        - Teleport you and your spaceship / home all around the world;
        - Search for free space (useful for finding asteroids).

    Type 'help' in Terminal to see available commands.

    Script is available on Github on GPL-3.0 License:
    https://github.com/GamePlayer-8/Pandorabox-Jumpdrive
--]]

--[[
    Feel free to fix / improve new things on Github.
--]]

local function jd_save() -- send save message to Jumpdrive
    digiline_send('jumpdrive', {command = 'save'})
end

local function jd_set(x, y, z) -- setup TARGET position in Jumpdrive
    digiline_send('jumpdrive', {command = 'set', key = 'x', value = x})
    digiline_send('jumpdrive', {command = 'save'})
    digiline_send('jumpdrive', {command = 'set', key = 'y', value = y})
    digiline_send('jumpdrive', {command = 'save'})
    digiline_send('jumpdrive', {command = 'set', key = 'z', value = z})
    digiline_send('jumpdrive', {command = 'save'})
end

local function jd_jump() -- send JUMP signal
    digiline_send('jumpdrive', {command = 'jump'})
end

local function jd_show() -- send check signal
    digiline_send('jumpdrive', {command = 'show'})
end

if not mem.scan_state then -- Setup scan variables
    mem.default_y = 6000
    mem.scan_state = '0'
end

if mem.scanf == '1' then -- Scan process
    if mem.startscan == '1' then
        mem.scany = mem.default_y
        mem.startscan = '0'
        mem.progress = 0
    end
    mem.progress = mem.progress + 1
    digiline_send('LCD', mem.progress..' on 80 - '..mem.y..' Y')
    jd_set(mem.x, mem.scany, mem.z)
    jd_show()
    mem.scanf = '2'
    if mem.progress == 80 then
        digiline_send('LCD', 'Asteroid not found.')
        mem.scanf = '0'
    end
end

if event.type == 'digiline' then
    -- Event process (in YandereDev style, lol)
    if event.channel == 'kb' then
        if mem.jdset == '3' then -- Set Z Position
            mem.z = event.msg
            mem.jdset = '0'
            digiline_send('jumpdrive', {command = 'set', key = 'z', value = event.msg})
            jd_save()

        elseif mem.jdset == '2' then -- Set Y Position
            mem.y = event.msg
            mem.jdset = '3'
            digiline_send('LCD', 'Z:')
            digiline_send('jumpdrive', {command = 'set', key = 'y', value = event.msg})
            jd_save()

        elseif mem.jdset == '1' then -- Set X Position
            mem.x = event.msg
            mem.jdset = '2'
            digiline_send('LCD', 'Y:')
            digiline_send('jumpdrive', {command = 'set', key = 'x', value = event.msg})
            jd_save()

        elseif mem.setdefa == '1' then -- Set Y Position
            mem.setdefa = '0'
            mem.y = event.msg
            digiline_send('jumpdrive', {command = 'set', key = 'y', value = mem.y})
            digiline_send('jumpdrive', {command = 'save'})

        elseif mem.scan_state == '1' then -- Set Y position
            mem.default_y = event.msg
            mem.scan_state = '2'

        elseif event.msg == 'set' then -- SET
            mem.jdset = '1'
            digiline_send('LCD', 'Set coordinates (X Y Z):')
            digiline_send('LCD', 'X:')

        elseif event.msg == 'jump' then -- JUMP
            digiline_send('LCD', 'Jumping...')
            jd_jump()

        elseif event.msg == 'scan' then -- SCAN
            digiline_send('LCD', 'Scanning...')
            mem.startscan = '1'
            mem.scanf = '1'

        elseif event.msg == 'stop' then -- STOP
            mem.scanf = '0'
            digiline_send('LCD', 'Scan canceled!')

        elseif event.msg == 'sethome' then -- SETHOME
            mem.homex = mem.x
            mem.homey = mem.y
            mem.homez = mem.z
            digiline_send('LCD','Done.')

        elseif event.msg == 'home' then -- HOME
            mem.x = mem.homex
            mem.y = mem.homey
            mem.z = mem.homez
            jd_set(mem.x, mem.y, mem.z)
            digiline_send('LCD','Teleportation...')
            jd_jump()

        elseif event.msg == 'coords' then -- COORDS
            digiline_send('LCD','JD >> Coords:')
            digiline_send('LCD','X: '..mem.x)
            digiline_send('LCD','Y: '..mem.y)
            digiline_send('LCD','Z: '..mem.z)

        elseif event.msg == 'setscan' then -- SETSCAN
            digiline_send('LCD','JD >> Set scan point:')
            mem.scan_state = '1'

        elseif evnet.msg == 'setY' then -- setY
            digiline_send('LCD', 'JD >> Y: ')
            mem.setdefa = '1'

        elseif event.msg == 'help' or event.msg == 'help 1' then -- HELP <page>
            digiline_send('LCD', 'Available commands:')
            digiline_send('LCD', 'help <page>;')
            digiline_send('LCD', 'jump | Send jump signal.')
            digiline_send('LCD', 'Page 1 of 4.')

        elseif event.msg == 'help 2' then
            digiline_send('LCD', 'set | Set target position;')
            digiline_send('LCD', 'scan | Scan for free space.')
            digiline_send('LCD', 'Page 2 of 4.')

        elseif event.msg == 'help 3' then
            digiline_send('LCD', 'stop | Stop scan;')
            digiline_send('LCD', 'coords | Show coords.')
            digiline_send('LCD', 'Page 3 of 4.')

        elseif event.msg == 'help 4' then
            digiline_send('LCD', 'setscan | Set scan point;')
            digiline_send('LCD', 'setY | Set scan Y position.')
            digiline_send('LCD', 'Page 4 of 4.')
        end

    elseif event.channel == 'jumpdrive' then
        if mem.scanf == '2' then
            if event.msg.success then
                digiline_send('LCD', 'Asteroid detected!')
                mem.scanf = '0'
                digiline_send('LCD', 'Y: '..mem.scany)
                digiline_send('jumpdrive', {command = 'set', key = 'y', value = mem.scany})
                digiline_send('jumpdrive', {command = 'save'})
            else
                mem.scany = mem.scany + 25
                mem.y = mem.scany
                mem.scanf = '1'
            end

        elseif event.msg.success then
            digiline_send('LCD', 'Success.')
        end
    end
end

interrupt(2)