Files
alttpr-baserom/build.py
2020-06-22 06:46:34 -07:00

116 lines
3.5 KiB
Python

import os
import sys
import hashlib
from asar import init as asar_init, close as asar_close, patch as asar_patch, geterrors as asar_errors, getprints as asar_prints, getwarnings as asar_warnings
JAP10HASH = '03a63945398191337e896e5771f77173'
try:
from yaml import CLoader as Loader
except ImportError:
from yaml import Loader
def int16_as_bytes(value):
value = value & 0xFFFF
return [value & 0xFF, (value >> 8) & 0xFF]
def int32_as_bytes(value):
value = value & 0xFFFFFFFF
return [value & 0xFF, (value >> 8) & 0xFF, (value >> 16) & 0xFF, (value >> 24) & 0xFF]
def is_bundled():
return getattr(sys, 'frozen', False)
def local_path(path):
if local_path.cached_path:
return os.path.join(local_path.cached_path, path)
elif is_bundled():
if hasattr(sys, "_MEIPASS"):
# we are running in a PyInstaller bundle
local_path.cached_path = sys._MEIPASS # pylint: disable=protected-access,no-member
else:
# cx_Freeze
local_path.cached_path = os.path.dirname(os.path.abspath(sys.argv[0]))
else:
# we are running in a normal Python environment
import __main__
local_path.cached_path = os.path.dirname(os.path.abspath(__main__.__file__))
return os.path.join(local_path.cached_path, path)
local_path.cached_path = None
def make_new_base2current(old_rom_data, new_rom_data):
from collections import OrderedDict
import json
# extend to 2 mb
old_rom_data.extend(bytearray([0x00]) * (2097152 - len(old_rom_data)))
out_data = OrderedDict()
for idx, old in enumerate(old_rom_data):
new = new_rom_data[idx]
if old != new:
out_data[idx] = [int(new)]
for offset in reversed(list(out_data.keys())):
if offset - 1 in out_data:
out_data[offset-1].extend(out_data.pop(offset))
with open('../base2current.json', 'wt') as outfile:
json.dump([{key: value} for key, value in out_data.items()], outfile, separators=(",", ":"))
basemd5 = hashlib.md5()
basemd5.update(new_rom_data)
return "New Rom Hash: " + basemd5.hexdigest()
if __name__ == '__main__':
try:
asar_init()
print("Asar DLL initialized")
print("Opening Base rom")
with open('../alttp.sfc', 'rb') as stream:
old_rom_data = bytearray(stream.read())
if len(old_rom_data) % 0x400 == 0x200:
old_rom_data = old_rom_data[0x200:]
basemd5 = hashlib.md5()
basemd5.update(old_rom_data)
if JAP10HASH != basemd5.hexdigest():
raise Exception("Base rom is not 'Zelda no Densetsu - Kamigami no Triforce (J) (V1.0)'")
print("Patching Base Rom")
result, new_rom_data = asar_patch(os.path.abspath('LTTP_RND_GeneralBugfixes.asm'), old_rom_data)
if result:
with open('../working.sfc', 'wb') as stream:
stream.write(new_rom_data)
print("Success\n")
print(make_new_base2current(old_rom_data, new_rom_data))
prints = asar_prints()
for p in prints:
print(p)
else:
errors = asar_errors()
print("\nErrors: " + str(len(errors)))
for error in errors:
print (error)
warnings = asar_warnings()
print("\nWarnings: " + str(len(warnings)))
for w in warnings:
print(w)
asar_close()
except:
import traceback
traceback.print_exc()