Split

-- Split, by Symmetryc
local arg = {...}
assert(#arg == 2, "Usage: "..shell.getRunningProgram().." <menu_file> <program_file>")
local max_x, max_y = term.getSize()
local new_term = {}
-- pos_x, pos_y, back, text
local menu = {
    pos_x = 1;
    pos_y = 1;
    back = 1;
    text = 1;
}
local prog = {
    pos_x = 1;
    pos_y = 2;
    back = 1;
    text = 1;
    width = max_x;
    height = max_y - 1;
    offset = 1;
}
new_term[1] = { -- menu
    setTextColor = function(_n)
        menu.text = _n
    end;
    setBackgroundColor = function(_n)
        menu.back = _n
    end;
    setCursorPos = function(_x, _y)
        menu.pos_x, menu.pos_y = _x, _y;
    end;
    getCursorPos = function()
        return menu.pos_x, menu.pos_y
    end;
    write = function(_str)
        term.setTextColor(menu.text)
        term.setBackgroundColor(menu.back)
        term.setCursorPos(menu.pos_x, menu.pos_y)
        term.write(_str)
        term.setTextColor(prog.text)
        term.setBackgroundColor(prog.back)
        term.setCursorPos(prog.pos_x, prog.pos_y)
    end;
}
new_term[2] = { -- prog
    getSize = function()
        return prog.width, prog.height
    end;
    setTextColor = function(_n)
        prog.text = _n
        term.setTextColor(_n)
    end;
    setBackgroundColor = function(_n)
        prog.back = _n
        term.setBackgroundColor(_n)
    end;
    setCursorPos = function(_x, _y)
        prog.pos_x = _x
        prog.pos_y = _y + prog.offset
        term.setCursorPos(_x, prog.pos_y)
    end;
    getCursorPos = function()
        return prog.pos_x, prog.pos_y - prog.offset
    end;
    write = function(_str)
        if prog.pos_y >= prog.offset + 1 then
            term.write(_str)
        end
    end;
}
local f = {}
for i, v in ipairs(arg) do
    new_term[i].setTextColour = new_term[i].setTextColor
    new_term[i].setBackgroundColour = new_term[i].setBackgroundColor
    f[i] = setfenv(loadfile(v), setmetatable({term = new_term[i]}, {__index = _G}))
end
return parallel.waitForAny(unpack(f))