2023-11-12 21:39:34 +00:00
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from typing import TYPE_CHECKING, Dict, Set
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from NetUtils import ClientStatus
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import worlds._bizhawk as bizhawk
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from worlds._bizhawk.client import BizHawkClient
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from .data import BASE_OFFSET, data
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from .options import Goal
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if TYPE_CHECKING:
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from worlds._bizhawk.context import BizHawkClientContext
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EXPECTED_ROM_NAME = "pokemon emerald version / AP 2"
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IS_CHAMPION_FLAG = data.constants["FLAG_IS_CHAMPION"]
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DEFEATED_STEVEN_FLAG = data.constants["TRAINER_FLAGS_START"] + data.constants["TRAINER_STEVEN"]
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DEFEATED_NORMAN_FLAG = data.constants["TRAINER_FLAGS_START"] + data.constants["TRAINER_NORMAN_1"]
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# These flags are communicated to the tracker as a bitfield using this order.
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# Modifying the order will cause undetectable autotracking issues.
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TRACKER_EVENT_FLAGS = [
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"FLAG_DEFEATED_RUSTBORO_GYM",
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"FLAG_DEFEATED_DEWFORD_GYM",
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"FLAG_DEFEATED_MAUVILLE_GYM",
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"FLAG_DEFEATED_LAVARIDGE_GYM",
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"FLAG_DEFEATED_PETALBURG_GYM",
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"FLAG_DEFEATED_FORTREE_GYM",
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"FLAG_DEFEATED_MOSSDEEP_GYM",
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"FLAG_DEFEATED_SOOTOPOLIS_GYM",
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"FLAG_RECEIVED_POKENAV", # Talk to Mr. Stone
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"FLAG_DELIVERED_STEVEN_LETTER",
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"FLAG_DELIVERED_DEVON_GOODS",
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"FLAG_HIDE_ROUTE_119_TEAM_AQUA", # Clear Weather Institute
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"FLAG_MET_ARCHIE_METEOR_FALLS", # Magma steals meteorite
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"FLAG_GROUDON_AWAKENED_MAGMA_HIDEOUT", # Clear Magma Hideout
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"FLAG_MET_TEAM_AQUA_HARBOR", # Aqua steals submarine
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"FLAG_TEAM_AQUA_ESCAPED_IN_SUBMARINE", # Clear Aqua Hideout
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"FLAG_HIDE_MOSSDEEP_CITY_SPACE_CENTER_MAGMA_NOTE", # Clear Space Center
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"FLAG_KYOGRE_ESCAPED_SEAFLOOR_CAVERN",
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"FLAG_HIDE_SKY_PILLAR_TOP_RAYQUAZA", # Rayquaza departs for Sootopolis
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"FLAG_OMIT_DIVE_FROM_STEVEN_LETTER", # Steven gives Dive HM (clears seafloor cavern grunt)
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"FLAG_IS_CHAMPION",
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"FLAG_PURCHASED_HARBOR_MAIL"
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]
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EVENT_FLAG_MAP = {data.constants[flag_name]: flag_name for flag_name in TRACKER_EVENT_FLAGS}
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KEY_LOCATION_FLAGS = [
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"NPC_GIFT_RECEIVED_HM01",
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"NPC_GIFT_RECEIVED_HM02",
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"NPC_GIFT_RECEIVED_HM03",
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"NPC_GIFT_RECEIVED_HM04",
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"NPC_GIFT_RECEIVED_HM05",
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"NPC_GIFT_RECEIVED_HM06",
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"NPC_GIFT_RECEIVED_HM07",
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"NPC_GIFT_RECEIVED_HM08",
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"NPC_GIFT_RECEIVED_ACRO_BIKE",
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"NPC_GIFT_RECEIVED_WAILMER_PAIL",
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"NPC_GIFT_RECEIVED_DEVON_GOODS_RUSTURF_TUNNEL",
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"NPC_GIFT_RECEIVED_LETTER",
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"NPC_GIFT_RECEIVED_METEORITE",
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"NPC_GIFT_RECEIVED_GO_GOGGLES",
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"NPC_GIFT_GOT_BASEMENT_KEY_FROM_WATTSON",
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"NPC_GIFT_RECEIVED_ITEMFINDER",
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"NPC_GIFT_RECEIVED_DEVON_SCOPE",
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"NPC_GIFT_RECEIVED_MAGMA_EMBLEM",
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"NPC_GIFT_RECEIVED_POKEBLOCK_CASE",
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"NPC_GIFT_RECEIVED_SS_TICKET",
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"HIDDEN_ITEM_ABANDONED_SHIP_RM_2_KEY",
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"HIDDEN_ITEM_ABANDONED_SHIP_RM_1_KEY",
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"HIDDEN_ITEM_ABANDONED_SHIP_RM_4_KEY",
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"HIDDEN_ITEM_ABANDONED_SHIP_RM_6_KEY",
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"ITEM_ABANDONED_SHIP_HIDDEN_FLOOR_ROOM_4_SCANNER",
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"ITEM_ABANDONED_SHIP_CAPTAINS_OFFICE_STORAGE_KEY",
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"NPC_GIFT_RECEIVED_OLD_ROD",
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"NPC_GIFT_RECEIVED_GOOD_ROD",
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"NPC_GIFT_RECEIVED_SUPER_ROD",
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]
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KEY_LOCATION_FLAG_MAP = {data.locations[location_name].flag: location_name for location_name in KEY_LOCATION_FLAGS}
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class PokemonEmeraldClient(BizHawkClient):
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game = "Pokemon Emerald"
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system = "GBA"
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patch_suffix = ".apemerald"
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local_checked_locations: Set[int]
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local_set_events: Dict[str, bool]
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local_found_key_items: Dict[str, bool]
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goal_flag: int
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def __init__(self) -> None:
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super().__init__()
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self.local_checked_locations = set()
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self.local_set_events = {}
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self.local_found_key_items = {}
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self.goal_flag = IS_CHAMPION_FLAG
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async def validate_rom(self, ctx: "BizHawkClientContext") -> bool:
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from CommonClient import logger
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try:
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# Check ROM name/patch version
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rom_name_bytes = ((await bizhawk.read(ctx.bizhawk_ctx, [(0x108, 32, "ROM")]))[0])
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rom_name = bytes([byte for byte in rom_name_bytes if byte != 0]).decode("ascii")
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if not rom_name.startswith("pokemon emerald version"):
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return False
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if rom_name == "pokemon emerald version":
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logger.info("ERROR: You appear to be running an unpatched version of Pokemon Emerald. "
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"You need to generate a patch file and use it to create a patched ROM.")
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return False
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if rom_name != EXPECTED_ROM_NAME:
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logger.info("ERROR: The patch file used to create this ROM is not compatible with "
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"this client. Double check your client version against the version being "
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"used by the generator.")
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return False
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except UnicodeDecodeError:
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return False
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except bizhawk.RequestFailedError:
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return False # Should verify on the next pass
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ctx.game = self.game
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ctx.items_handling = 0b001
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ctx.want_slot_data = True
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ctx.watcher_timeout = 0.125
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return True
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async def set_auth(self, ctx: "BizHawkClientContext") -> None:
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slot_name_bytes = (await bizhawk.read(ctx.bizhawk_ctx, [(data.rom_addresses["gArchipelagoInfo"], 64, "ROM")]))[0]
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ctx.auth = bytes([byte for byte in slot_name_bytes if byte != 0]).decode("utf-8")
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async def game_watcher(self, ctx: "BizHawkClientContext") -> None:
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if ctx.slot_data is not None:
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if ctx.slot_data["goal"] == Goal.option_champion:
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self.goal_flag = IS_CHAMPION_FLAG
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elif ctx.slot_data["goal"] == Goal.option_steven:
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self.goal_flag = DEFEATED_STEVEN_FLAG
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elif ctx.slot_data["goal"] == Goal.option_norman:
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self.goal_flag = DEFEATED_NORMAN_FLAG
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try:
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# Checks that the player is in the overworld
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overworld_guard = (data.ram_addresses["gMain"] + 4, (data.ram_addresses["CB2_Overworld"] + 1).to_bytes(4, "little"), "System Bus")
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# Read save block address
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read_result = await bizhawk.guarded_read(
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ctx.bizhawk_ctx,
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[(data.ram_addresses["gSaveBlock1Ptr"], 4, "System Bus")],
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[overworld_guard]
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)
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if read_result is None: # Not in overworld
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return
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# Checks that the save block hasn't moved
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save_block_address_guard = (data.ram_addresses["gSaveBlock1Ptr"], read_result[0], "System Bus")
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save_block_address = int.from_bytes(read_result[0], "little")
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# Handle giving the player items
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read_result = await bizhawk.guarded_read(
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ctx.bizhawk_ctx,
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[
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(save_block_address + 0x3778, 2, "System Bus"), # Number of received items
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(data.ram_addresses["gArchipelagoReceivedItem"] + 4, 1, "System Bus") # Received item struct full?
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],
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[overworld_guard, save_block_address_guard]
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)
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if read_result is None: # Not in overworld, or save block moved
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return
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num_received_items = int.from_bytes(read_result[0], "little")
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received_item_is_empty = read_result[1][0] == 0
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# If the game hasn't received all items yet and the received item struct doesn't contain an item, then
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# fill it with the next item
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if num_received_items < len(ctx.items_received) and received_item_is_empty:
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next_item = ctx.items_received[num_received_items]
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await bizhawk.write(ctx.bizhawk_ctx, [
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(data.ram_addresses["gArchipelagoReceivedItem"] + 0, (next_item.item - BASE_OFFSET).to_bytes(2, "little"), "System Bus"),
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(data.ram_addresses["gArchipelagoReceivedItem"] + 2, (num_received_items + 1).to_bytes(2, "little"), "System Bus"),
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(data.ram_addresses["gArchipelagoReceivedItem"] + 4, [1], "System Bus"), # Mark struct full
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(data.ram_addresses["gArchipelagoReceivedItem"] + 5, [next_item.flags & 1], "System Bus"),
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])
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# Read flags in 2 chunks
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read_result = await bizhawk.guarded_read(
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ctx.bizhawk_ctx,
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[(save_block_address + 0x1450, 0x96, "System Bus")], # Flags
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[overworld_guard, save_block_address_guard]
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)
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if read_result is None: # Not in overworld, or save block moved
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return
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flag_bytes = read_result[0]
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read_result = await bizhawk.guarded_read(
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ctx.bizhawk_ctx,
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[(save_block_address + 0x14E6, 0x96, "System Bus")], # Flags
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[overworld_guard, save_block_address_guard]
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)
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if read_result is not None:
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flag_bytes += read_result[0]
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game_clear = False
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local_checked_locations = set()
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local_set_events = {flag_name: False for flag_name in TRACKER_EVENT_FLAGS}
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local_found_key_items = {location_name: False for location_name in KEY_LOCATION_FLAGS}
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# Check set flags
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for byte_i, byte in enumerate(flag_bytes):
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for i in range(8):
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if byte & (1 << i) != 0:
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flag_id = byte_i * 8 + i
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location_id = flag_id + BASE_OFFSET
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if location_id in ctx.server_locations:
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local_checked_locations.add(location_id)
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if flag_id == self.goal_flag:
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game_clear = True
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if flag_id in EVENT_FLAG_MAP:
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local_set_events[EVENT_FLAG_MAP[flag_id]] = True
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if flag_id in KEY_LOCATION_FLAG_MAP:
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local_found_key_items[KEY_LOCATION_FLAG_MAP[flag_id]] = True
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# Send locations
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if local_checked_locations != self.local_checked_locations:
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self.local_checked_locations = local_checked_locations
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if local_checked_locations is not None:
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await ctx.send_msgs([{
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"cmd": "LocationChecks",
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"locations": list(local_checked_locations)
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}])
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# Send game clear
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if not ctx.finished_game and game_clear:
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await ctx.send_msgs([{
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"cmd": "StatusUpdate",
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"status": ClientStatus.CLIENT_GOAL
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}])
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# Send tracker event flags
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if local_set_events != self.local_set_events and ctx.slot is not None:
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event_bitfield = 0
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for i, flag_name in enumerate(TRACKER_EVENT_FLAGS):
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if local_set_events[flag_name]:
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event_bitfield |= 1 << i
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await ctx.send_msgs([{
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"cmd": "Set",
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"key": f"pokemon_emerald_events_{ctx.team}_{ctx.slot}",
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"default": 0,
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"want_reply": False,
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2023-11-26 04:13:08 +00:00
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"operations": [{"operation": "or", "value": event_bitfield}]
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2023-11-12 21:39:34 +00:00
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}])
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self.local_set_events = local_set_events
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if local_found_key_items != self.local_found_key_items:
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key_bitfield = 0
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for i, location_name in enumerate(KEY_LOCATION_FLAGS):
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if local_found_key_items[location_name]:
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key_bitfield |= 1 << i
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await ctx.send_msgs([{
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"cmd": "Set",
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"key": f"pokemon_emerald_keys_{ctx.team}_{ctx.slot}",
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"default": 0,
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"want_reply": False,
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2023-11-26 04:13:08 +00:00
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"operations": [{"operation": "or", "value": key_bitfield}]
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2023-11-12 21:39:34 +00:00
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}])
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self.local_found_key_items = local_found_key_items
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except bizhawk.RequestFailedError:
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# Exit handler and return to main loop to reconnect
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pass
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