Gargoyle's Quest 2 (GB) password generation

gw2pw.py

#!/usr/bin/env python

jump_level = 4      # FFD4: 0-4
health_level = 4    # FFE0: 0-4
wing_level = 4      # FFD8: 0-4
magic_types = 4     # FFD2: 0-4 ?
    # 0 = fire
    # 1 = buster
    # 2 = tornado
    # 3 = claw
    # 4 = dark fire
scene    = 10        # FFC8
    # 1 = warrior's training center portal
    # 2 = fighting through etruria, black light
    # 3 = cave to sittem
    # 4 = sand frog castle
    # 5 = pass to imaus
    # 6 = labyrinth
    # 7 = Goza Castle
    # 8 = Breager Castle
    # 9 = Goza
    # 10 = Breager
    # 11 = first bridge
    # 12 = river of flames
    # 13 = gaza valley
    # 14 = bridge to king's palace
    # 15 = achelon's water
    # 16 = pass to labyrinth
    # 17 = forced encounter
    # 18 = Nagus
    # 19 = Naga's Path
    # 21 = Death Balloon
    # 22 = Dagon
    # 23 = Sand Frog
    # 24 = Twin Guardians
    # 25 = Mantis fight
    # 26 = Fake King
    # 27 = pass to labyrinth, reverse
    # 29 = cave to sittem, reverse
    # 30 = river of flames, reverse
    # 38 = Doppelganger
    # 39 = encounter east of Sidon
    # 40 = encounter
    # 41 = encounter east of king's palace
    # 42 = checkpoint in forest
    # 43 = checkpoint in pass to imaus
    # 44 = ice cave
    # 46 = garbage
    # 47 = garbage
    # 48 = exiting starting town
    # 49 = starting town
    # 51 = sidon
    # 52 = loosekeep
    # 53 = king's palace
    # 54 = topete
    # 55 = cave containing majorita's home
    # 56 = talking to king
    # 57 = jark throne room
    # 58 = Goza throne room
    # 59 = talking to demagorgon
    # 60 = buy maelstrom in etruria
    # 61 = building in etruria
    # 62 = warrior's training center
    # 63 = building in etruria
    # 64 = majorita's home
    # 65 = labyrinth entrance
    # 66 = exiting building in jark's town
    # 67 = defeated twin guardians
    # 68 = warrior's training center, black light
    # 69 = warrior's training center, after nagus
    # 70 = starting town, exiting warrior's training center
    # 71 = starting town, exiting nagus fight
    # 72 = etruria throne room, after nagus
    # 73 = exiting warrior training center, after nagus
    # 74 = etruria throne room, before nagus
    # 75 = exiting building in etruria
    # 76 = exiting building in etruria
    # 77 = exiting building in etruria
    # 78 = buying maelstrom in etruria, after nagus
    # 86 = exiting first bridge north
    # 106 = exiting death balloon
    # 108 = exiting majorita's home
    # 112 = exiting gaza valley towards desert
    # 115 = intro story dump
    # 116 = exiting forced encounter
    # 118 = exiting bridge towards king's palace
    # 121 = laboritory in king's palace
    # 128 = exiting laboritory in king's palace
    # 156 - breager throne room
    # 157 - defeated breager
    # 158 - final scene
    # 159 = got achelon's water
    # 160 = standing in front of mantis as if an encounter finished?
    # 161 = defeated fake king
    # 162 = rushifell tower
    # 163 = verona tower
    # 166 = exiting rushifell tower
    # 182 - credits
    # 186 = got astral projection
    # 192 = automatic checkpoint from before argob's pot
    # 197 - automatic checkpoint before breager's castle
    # 220-254 = crash
    # 255 - boss list
unk_FFE4 = 0xff
    # 0x1 = have ARGOB'S POT
    # 0x2 = have NIGHT DROP
    # 0x4 = have CANDLE OF DARKNESS
    # 0x8 = have GREMLIN STICK
    # 0x10 = have ACHELON'S WATER
    # 0x20 = have DAGON'S SCALES
    # 0x40 = have CANDLE OF POLTERGEIST
    # 0x80 = have LETHE'S CANDLE
unk_FFE5 = 0xff
    # 0x1 = have angel wings
    # 0x2 = have hippogriff's feather
    # 0x4 = have bereal's wings
    # 0x8 = have spectre's fingernail
    # 0x10 = have mammon's hoof
    # 0x20 = have dragon's armor
    # 0x40 = have atlas's armor
    # 0x80 = have essence of soulstream
unk_FFE6 = 0xf
    # 0x1 = have candle of the ghoul realm
    # 0x2 = have homing fire
    # 0x4 = have astral projection
    # 0x8 = have life upgrade from laboritory
unk_FFDB = 23        # point in story
    # 0 = starting
    # 1 = got argob's pot
    # 2 = got spectre's fingernail
    # 3 = showed fingernail to NPC
    # 4 = won forced overworld fight
    # 5 = got dragon's armor
    # 6 = defeated death balloon
    # 7 = showed night drop to majorita
    # 8 = used candle of darkness
    # 9 = got wings from majorita
    # 10 = showed wings to NPC
    # 11 = defeated sand frog
    # 12 = used gremlin stick (impossible to actually get in this state, and it's a soft lock)
    # 13 = really used gremlin stick
    # 14 = talked to NPC on the way to king's palace
    # 15 = defeated fake king
    # 16 = defeated enemy blocking labyrinth
    # 17 = defeated doppelganger
    # 18 = talked to rushifell only
    # 19 = talked to verona only
    # 20 = talked to both (rushifell first)
    # 21 = talked to both (verona first)
    # 22 = got candle of the ghoul realm
    # 23 = used candle of the ghoul realm

def generate(): #467D
    data = [0] * 6
    DE = magic_types * 125 + wing_level * 25 + health_level * 5 + jump_level
    data[0] = DE & 0xff
    data[1] = scene
    data[2] = unk_FFE4
    data[3] = unk_FFE5
    data[4] = unk_FFDB | ((DE >> 2) & 192)
    data[5] = (unk_FFE6 & 0xf) << 4
    check = nibble_parity(data)
    data[5] = ((~check) & 0xf) | data[5]
    return "%08u-%08u" % ((data[2] | (data[1] << 8) | (data[0] << 16)),
                          (data[5] | (data[4] << 8) | (data[3] << 16)))

def nibble_parity(data): #4796
    result = 0
    for i in data:
        result = result ^ (i & 0xf) ^ ((i & 0xf0) >> 4)
    return result

if __name__ == '__main__':
    print generate()