def write_data(self, rom: LocalRom):
# move file to remap address
self.file.relocate(rom)
headcur = self.file.start
code = rom.read_byte(headcur)
loop = 0x20
while loop != 0 and code != 0x14: #terminator
loop -= 1
if code == 0x01: # actors
offset = self.file.end - self.file.start
write_actor_data(rom, self.file.end, self.actors)
self.file.end += len(self.actors) * 0x10
rom.write_byte(headcur + 1, len(self.actors))
rom.write_int32(headcur + 4, get_segment_address(3, offset))
elif code == 0x0B: # objects
offset = self.append_object_data(rom, self.objects)
rom.write_byte(headcur + 1, len(self.objects))
rom.write_int32(headcur + 4, get_segment_address(3, offset))
headcur += 8
code = rom.read_byte(headcur)
# update file reference
self.file.end = align16(self.file.end)
update_dmadata(rom, self.file)
def patch_spirit_temple_mq_room_6(rom: LocalRom, room_addr):
cur = room_addr
actor_list_addr = 0
cmd_actors_offset = 0
# scan for actor list and header end
code = rom.read_byte(cur)
while code != 0x14: #terminator
if code == 0x01: # actors
actor_list_addr = rom.read_int32(cur + 4)
cmd_actors_offset = cur - room_addr
cur += 8
code = rom.read_byte(cur)
cur += 8
# original header size
header_size = cur - room_addr
# set alternate header data location
alt_data_off = header_size + 8
# set new alternate header offset
alt_header_off = align16(alt_data_off +
(4 * 3)) # alt header record size * num records
# write alternate header data
# the first 3 words are mandatory. the last 3 are just to make the binary
# cleaner to read
rom.write_int32s(room_addr + alt_data_off,
[0, get_segment_address(3, alt_header_off), 0, 0, 0, 0])
# clone header
a_start = room_addr
a_end = a_start + header_size
b_start = room_addr + alt_header_off
b_end = b_start + header_size
rom.buffer[b_start:b_end] = rom.buffer[a_start:a_end]
# make the child header skip the first actor,
# which avoids the spawning of the block while in the hole
cmd_addr = room_addr + cmd_actors_offset
actor_list_addr += 0x10
actors = rom.read_byte(cmd_addr + 1)
rom.write_byte(cmd_addr + 1, actors - 1)
rom.write_int32(cmd_addr + 4, actor_list_addr)
# move header
rom.buffer[a_start + 8:a_end + 8] = rom.buffer[a_start:a_end]
# write alternate header command
seg = get_segment_address(3, alt_data_off)
rom.write_int32s(room_addr, [0x18000000, seg])
def write_data(self, rom: LocalRom):
# write floormap and minimap data
self.write_map_data(rom)
# move file to remap address
self.file.relocate(rom)
start = self.file.start
headcur = self.file.start
room_list_offset = 0
code = rom.read_byte(headcur)
loop = 0x20
while loop > 0 and code != 0x14: #terminator
loop -= 1
if code == 0x03: #collision
col_mesh_offset = rom.read_int24(headcur + 5)
col_mesh = CollisionMesh(rom, start, col_mesh_offset)
self.patch_mesh(rom, col_mesh)
elif code == 0x04: #rooms
room_list_offset = rom.read_int24(headcur + 5)
elif code == 0x0D: #paths
path_offset = self.append_path_data(rom)
rom.write_int32(headcur + 4, path_offset)
elif code == 0x0E: #transition actors
t_offset = rom.read_int24(headcur + 5)
addr = self.file.start + t_offset
write_actor_data(rom, addr, self.transition_actors)
headcur += 8
code = rom.read_byte(headcur)
# update file references
self.file.end = align16(self.file.end)
update_dmadata(rom, self.file)
update_scene_table(rom, self.id, self.file.start, self.file.end)
# write room file data
for room in self.rooms:
room.write_data(rom)
if self.id == 6 and room.id == 6:
patch_spirit_temple_mq_room_6(rom, room.file.start)
cur = self.file.start + room_list_offset
for room in self.rooms:
rom.write_int32s(cur, [room.file.start, room.file.end])
cur += 0x08
def adjust(args):
start = time.perf_counter()
logger = logging.getLogger('Adjuster')
logger.info('Patching ROM.')
vanillaRom = args.baserom
if os.path.splitext(args.rom)[-1].lower() == '.bmbp':
import Patch
meta, args.rom = Patch.create_rom_file(args.rom)
if os.stat(args.rom).st_size in (0x200000, 0x400000) and os.path.splitext(
args.rom)[-1].lower() == '.sfc':
rom = LocalRom(args.rom, patch=False, vanillaRom=vanillaRom)
else:
raise RuntimeError(
'Provided Rom is not a valid Link to the Past Randomizer Rom. Please provide one for adjusting.'
)
palettes_options = {}
palettes_options['dungeon'] = args.uw_palettes
palettes_options['overworld'] = args.ow_palettes
palettes_options['hud'] = args.hud_palettes
palettes_options['sword'] = args.sword_palettes
palettes_options['shield'] = args.shield_palettes
# palettes_options['link']=args.link_palettesvera
racerom = rom.read_byte(0x180213) > 0
apply_rom_settings(
rom,
args.heartbeep,
args.heartcolor,
args.quickswap,
args.fastmenu,
args.disablemusic,
args.sprite,
palettes_options,
cutscenespeed=args.cutscenespeed if not racerom else "normal",
reduceflashing=args.reduceflashing)
path = output_path(f'{os.path.basename(args.rom)[:-4]}_adjusted.sfc')
rom.write_to_file(path)
logger.info('Done. Enjoy.')
logger.debug('Total Time: %s', time.perf_counter() - start)
return args, path
def patch_mesh(self, rom: LocalRom, mesh: CollisionMesh):
start = self.file.start
final_cams = []
# build final camera data
for cam in self.coldelta.cams:
data = cam['Data']
pos = cam['PositionIndex']
if pos < 0:
final_cams.append((data, 0))
else:
addr = start + (mesh.camera_data_addr & 0xFFFFFF)
seg_off = rom.read_int32(addr + (pos * 8) + 4)
final_cams.append((data, seg_off))
types_move_addr = 0
# if data can't fit within the old mesh space, append camera data
if self.coldelta.is_larger:
types_move_addr = mesh.camera_data_addr
# append to end of file
self.write_cam_data(rom, self.file.end, final_cams)
mesh.camera_data_addr = get_segment_address(
2, self.file.end - self.file.start)
self.file.end += len(final_cams) * 8
else:
types_move_addr = mesh.camera_data_addr + (len(final_cams) * 8)
# append in place
addr = self.file.start + (mesh.camera_data_addr & 0xFFFFFF)
self.write_cam_data(rom, addr, final_cams)
# if polytypes needs to be moved, do so
if (types_move_addr != mesh.polytypes_addr):
a_start = self.file.start + (mesh.polytypes_addr & 0xFFFFFF)
b_start = self.file.start + (types_move_addr & 0xFFFFFF)
size = mesh.polytypes * 8
rom.buffer[b_start:b_start + size] = rom.buffer[a_start:a_start +
size]
mesh.polytypes_addr = types_move_addr
# patch polytypes
for item in self.coldelta.polytypes:
id = item['Id']
high = item['High']
low = item['Low']
addr = self.file.start + (mesh.polytypes_addr & 0xFFFFFF) + (id *
8)
rom.write_int32s(addr, [high, low])
# patch poly data
for item in self.coldelta.polys:
id = item['Id']
t = item['Type']
flags = item['Flags']
addr = self.file.start + (mesh.poly_addr & 0xFFFFFF) + (id * 0x10)
vert_bit = rom.read_byte(addr + 0x02) & 0x1F # VertexA id data
rom.write_int16(addr, t)
rom.write_byte(addr + 0x02, (flags << 5) + vert_bit)
# Write Mesh to Scene
mesh.write_to_scene(rom, self.file.start)