1fmAPHandleDeathlink.lua

LUAGUI_NAME = "1fmAPHandleDeathlink"
LUAGUI_AUTH = "denhonator with edits from Gicu"
LUAGUI_DESC = "Handles sending and receiving Death Links. Credits to Denho."

game_version = 1 --1 for ESG 1.0.0.9, 2 for Steam 1.0.0.9

if os.getenv('LOCALAPPDATA') ~= nil then
    client_communication_path = os.getenv('LOCALAPPDATA') .. "\\KH1FM\\"
else
    client_communication_path = os.getenv('HOME') .. "/KH1FM/"
    ok, err, code = os.rename(client_communication_path, client_communication_path)
    if not ok and code ~= 13 then
        os.execute("mkdir " .. path)
    end
end

local extraSafety = false
local revertCode = false
local removeWhite = 0
local lastDeathPointer = 0
local soraHUD = {0x2812E1C, 0x281249C}
local soraHP = {0x2D5D5CC, 0x2D5CC4C}
local stateFlag = {0x2867C58, 0x28672C8}
local deathCheck = {0x299BE0, 0x29BD70}
local safetyMeasure = {0x299A46, 0x29BBD6}
local whiteFade = {0x234079C, 0x233FECC}
local blackFade = {0x4DD3F8, 0x4DC718}
local deathPointer = {0x23987B8, 0x2382568}

local canExecute = false
last_death_time = 0
sora_hp_address_base = {0x2DE9CE0, 0x2DE9360}
soras_hp_address = {0x2DE9CE0 + 0x5, 0x2DE9360 + 0x5}
donalds_hp_address = {0x2DE9CE0 + 0x5 + 0x74, 0x2DE9360 + 0x5 + 0x74}
goofys_hp_address = {0x2DE9CE0 + 0x5 + 0x74 + 0x74, 0x2DE9360 + 0x5 + 0x74 + 0x74}
soras_last_hp = 100

function file_exists(name)
   local f=io.open(name,"r")
   if f~=nil then io.close(f) return true else return false end
end

function _OnInit()
    IsEpicGLVersion  = 0x3A2B86
    IsSteamGLVersion = 0x3A29A6
    if GAME_ID == 0xAF71841E and ENGINE_TYPE == "BACKEND" then
        if ReadByte(IsEpicGLVersion) == 0xFF then
            ConsolePrint("Epic Version Detected")
            game_version = 1
        end
        if ReadByte(IsSteamGLVersion) == 0xFF then
            ConsolePrint("Steam Version Detected")
            game_version = 2
        end
        canExecute = true
    else
        ConsolePrint("KH1 not detected, not running script")
    end
    lastDeathPointer = ReadLong(deathPointer[game_version])
    if file_exists(client_communication_path .. "dlreceive") then
        file = io.open(client_communication_path .. "dlreceive")
        io.input(file)
        death_time = tonumber(io.read())
        if death_time ~= nil then
            last_death_time = death_time
        end
        io.close(file)
    end
    soras_last_hp = ReadByte(soraHP[game_version])
end

function _OnFrame()
    if not canExecute then
        goto done
    end
    save_menu_open_address = {0x232E904, 0x232DFA4}
    local savemenuopen = ReadByte(save_menu_open_address[game_version])
    -- Remove white screen on death (it bugs out this way normally)
    if removeWhite > 0 then
        removeWhite = removeWhite - 1
        if ReadByte(whiteFade[game_version]) == 128 then
            WriteByte(whiteFade[game_version], 0)
        end
    end
    
    -- Reverts disabling death condition check (or it crashes)
    if revertCode and ReadLong(deathPointer[game_version]) ~= lastDeathPointer then
        WriteShort(deathCheck[game_version], 0x2E74)
        if extraSafety then
            WriteLong(safetyMeasure[game_version], 0x8902AB8973058948)
        end
        removeWhite = 1000
        revertCode = false
    end
    
    if file_exists(client_communication_path .. "goofydl.cfg") then
        if ReadByte(goofys_hp_address[game_version]) == 0 and ReadByte(soras_hp_address[game_version]) > 0 then
            ConsolePrint("Goofy was defeated!")
            WriteByte(soraHP[game_version], 0)
            WriteByte(soras_hp_address[game_version], 0)
            WriteByte(stateFlag[game_version], 1)
            WriteShort(deathCheck[game_version], 0x9090)
            if extraSafety then
                WriteLong(safetyMeasure[game_version], 0x89020B958735894C)
            end
            revertCode = true
        end
    end
    if file_exists(client_communication_path .. "donalddl.cfg") then
        if ReadByte(donalds_hp_address[game_version]) == 0 and ReadByte(soras_hp_address[game_version]) > 0 then
            ConsolePrint("Donald was defeated!")
            WriteByte(soraHP[game_version], 0)
            WriteByte(soras_hp_address[game_version], 0)
            WriteByte(stateFlag[game_version], 1)
            WriteShort(deathCheck[game_version], 0x9090)
            if extraSafety then
                WriteLong(safetyMeasure[game_version], 0x89020B958735894C)
            end
            revertCode = true
        end
    end
    
    if file_exists(client_communication_path .. "dlreceive") then
        file = io.open(client_communication_path .. "dlreceive")
        io.input(file)
        death_time = tonumber(io.read())
        io.close(file)
        if death_time ~= nil and last_death_time ~= nil then
            if ReadFloat(soraHUD[game_version]) > 0 and ReadByte(soraHP[game_version]) > 0 and ReadByte(blackFade[game_version])==128 and ReadShort(deathCheck[game_version]) == 0x2E74 and death_time >= last_death_time + 3 then
                WriteByte(soraHP[game_version], 0)
                WriteByte(stateFlag[game_version], 1)
                WriteShort(deathCheck[game_version], 0x9090)
                if extraSafety then
                    WriteLong(safetyMeasure[game_version], 0x89020B958735894C)
                end
                revertCode = true
                last_death_time = death_time
                soras_last_hp = 0
            end
        end
    end
    
    if ReadByte(soras_hp_address[game_version]) == 0 and soras_last_hp > 0 then
        ConsolePrint("Sending death")
        ConsolePrint("Sora's HP: " .. tostring(ReadByte(soras_hp_address[game_version])))
        ConsolePrint("Sora's Last HP: " .. tostring(soras_last_hp))
        death_date = os.date("!%Y%m%d%H%M%S")
        if not file_exists(client_communication_path .. "dlsend" .. tostring(death_date)) then
            file = io.open(client_communication_path .. "dlsend" .. tostring(death_date), "w")
            io.output(file)
            io.write("")
            io.close(file)
        end
    end
    soras_last_hp = ReadByte(soras_hp_address[game_version])
    ::done::
end