MM J 1.1 Debug Menu finder

-- debug_finder_j.lua
--
-- For use with Majora's Mask (J) 1.1
-- Open up the Song of Soaring menu before activating the script
-- Check if any of the substrings for the destination will cause the debug menu
-- to appear as well as the OoT Save menu. These results would only be theoretically
-- possible on VC due to crashing.
--
-- Author: @Faschz (modified by Exodus)
-- Created: May 5th, 2019

MESSAGE_ADDRESS = 0x1CB010
LENGTH_ADDRESS = 0x1CB0D8

--If this byte is written with a value < 7... the string gets written twice
INSTRUCTION_OFFSET = 191

PAUSE_OFFSET = 1742
DEBUG_OFFSET = 1744
REQUIRED_LENGTH = DEBUG_OFFSET/2

for index=-32768, 32767 do
    -- The string is given
    length = mainmemory.read_s16_be(LENGTH_ADDRESS + index*2)

    -- Check if this string would be written twice according to this short
    instruction_short = mainmemory.read_s16_be(MESSAGE_ADDRESS + index*18 + INSTRUCTION_OFFSET)

    if length >= REQUIRED_LENGTH then
        debug_short = mainmemory.read_u16_be(MESSAGE_ADDRESS + index*18 + DEBUG_OFFSET)
        pause_short = mainmemory.read_u16_be(MESSAGE_ADDRESS + index*18 + PAUSE_OFFSET)

        if (debug_short == 1 or debug_short == 2) and (pause_short == 7 or (pause_short >= 9 and pause_short <= 14)) then
            print("WORKING INDEX: "..index..", length = "..length..", menu = "..pause_short)
        end

    elseif length >= INSTRUCTION_OFFSET and instruction_short < 7 and length*2 >= REQUIRED_LENGTH then
        -- Here the string gets written twice, so the offset from the substring is different
        -- from normal. For instance: If normally the offset was the 7th byte, but the length was 4
        -- when the string is written twice it would be the 3rd byte on the 2nd write (7%4)

        --TODO: This isn't actually true 100%, because once it prints the string the first time it also
        -- prints the data for the yes/no options and reprints the start of the string. So the offset would
        -- have to take into account how large this data is.

        debug_short = mainmemory.read_u16_be(MESSAGE_ADDRESS + index*18 + (DEBUG_OFFSET%length))
        pause_short = mainmemory.read_u16_be(MESSAGE_ADDRESS + index*18 + (PAUSE_OFFSET%length))

        --if (debug_short == 1 or debug_short == 2) and (pause_short >= 9 and pause_short <= 14) then
        --  print("WORKING INDEX: "..index)
        --end

    end
end