279 lines
13 KiB
Python
279 lines
13 KiB
Python
import base64
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import logging
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import time
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from NetUtils import ClientStatus
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from worlds._bizhawk.client import BizHawkClient
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from worlds._bizhawk import read, write, guarded_write
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from .locations import location_data
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logger = logging.getLogger("Client")
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BANK_EXCHANGE_RATE = 50000000
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DATA_LOCATIONS = {
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"ItemIndex": (0x1A6E, 0x02),
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"Deathlink": (0x00FD, 0x01),
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"APItem": (0x00FF, 0x01),
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"EventFlag": (0x1735, 0x140),
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"Missable": (0x161A, 0x20),
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"Hidden": (0x16DE, 0x0E),
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"Rod": (0x1716, 0x01),
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"DexSanityFlag": (0x1A71, 19),
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"GameStatus": (0x1A84, 0x01),
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"Money": (0x141F, 3),
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"ResetCheck": (0x0100, 4),
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# First and second Vermilion Gym trash can selection. Second is not used, so should always be 0.
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# First should never be above 0x0F. This is just before Event Flags.
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"CrashCheck1": (0x1731, 2),
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# Unused, should always be 0. This is just before Missables flags.
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"CrashCheck2": (0x1617, 1),
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# Progressive keys, should never be above 10. Just before Dexsanity flags.
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"CrashCheck3": (0x1A70, 1),
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# Route 18 Gate script value. Should never be above 3. Just before Hidden items flags.
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"CrashCheck4": (0x16DD, 1),
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}
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location_map = {"Rod": {}, "EventFlag": {}, "Missable": {}, "Hidden": {}, "list": {}, "DexSanityFlag": {}}
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location_bytes_bits = {}
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for location in location_data:
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if location.ram_address is not None:
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if type(location.ram_address) == list:
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location_map[type(location.ram_address).__name__][(location.ram_address[0].flag, location.ram_address[1].flag)] = location.address
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location_bytes_bits[location.address] = [{'byte': location.ram_address[0].byte, 'bit': location.ram_address[0].bit},
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{'byte': location.ram_address[1].byte, 'bit': location.ram_address[1].bit}]
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else:
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location_map[type(location.ram_address).__name__][location.ram_address.flag] = location.address
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location_bytes_bits[location.address] = {'byte': location.ram_address.byte, 'bit': location.ram_address.bit}
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location_name_to_id = {location.name: location.address for location in location_data if location.type == "Item"
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and location.address is not None}
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class PokemonRBClient(BizHawkClient):
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system = ("GB", "SGB")
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patch_suffix = (".apred", ".apblue")
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game = "Pokemon Red and Blue"
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def __init__(self):
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super().__init__()
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self.auto_hints = set()
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self.locations_array = None
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self.disconnect_pending = False
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self.set_deathlink = False
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self.banking_command = None
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self.game_state = False
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self.last_death_link = 0
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async def validate_rom(self, ctx):
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game_name = await read(ctx.bizhawk_ctx, [(0x134, 12, "ROM")])
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game_name = game_name[0].decode("ascii")
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if game_name in ("POKEMON RED\00", "POKEMON BLUE"):
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ctx.game = self.game
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ctx.items_handling = 0b001
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ctx.command_processor.commands["bank"] = cmd_bank
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seed_name = await read(ctx.bizhawk_ctx, [(0xFFDB, 21, "ROM")])
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ctx.seed_name = seed_name[0].split(b"\0")[0].decode("ascii")
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self.set_deathlink = False
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self.banking_command = None
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self.locations_array = None
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self.disconnect_pending = False
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return True
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return False
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async def set_auth(self, ctx):
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auth_name = await read(ctx.bizhawk_ctx, [(0xFFC6, 21, "ROM")])
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if auth_name[0] == bytes([0] * 21):
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# rom was patched before rom names implemented, use player name
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auth_name = await read(ctx.bizhawk_ctx, [(0xFFF0, 16, "ROM")])
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auth_name = auth_name[0].decode("ascii").split("\x00")[0]
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else:
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auth_name = base64.b64encode(auth_name[0]).decode()
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ctx.auth = auth_name
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async def game_watcher(self, ctx):
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if not ctx.server or not ctx.server.socket.open or ctx.server.socket.closed:
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return
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data = await read(ctx.bizhawk_ctx, [(loc_data[0], loc_data[1], "WRAM")
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for loc_data in DATA_LOCATIONS.values()])
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data = {data_set_name: data_name for data_set_name, data_name in zip(DATA_LOCATIONS.keys(), data)}
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if self.set_deathlink:
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self.set_deathlink = False
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await ctx.update_death_link(True)
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if self.disconnect_pending:
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self.disconnect_pending = False
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await ctx.disconnect()
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if data["GameStatus"][0] == 0 or data["ResetCheck"] == b'\xff\xff\xff\x7f':
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# Do not handle anything before game save is loaded
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self.game_state = False
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return
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elif (data["GameStatus"][0] not in (0x2A, 0xAC)
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or data["CrashCheck1"][0] & 0xF0 or data["CrashCheck1"][1] & 0xFF
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or data["CrashCheck2"][0]
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or data["CrashCheck3"][0] > 10
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or data["CrashCheck4"][0] > 3):
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# Should mean game crashed
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logger.warning("Pokémon Red/Blue game may have crashed. Disconnecting from server.")
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self.game_state = False
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await ctx.disconnect()
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return
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self.game_state = True
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# SEND ITEMS TO CLIENT
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if data["APItem"][0] == 0:
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item_index = int.from_bytes(data["ItemIndex"], "little")
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if len(ctx.items_received) > item_index:
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item_code = ctx.items_received[item_index].item - 172000000
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if item_code > 255:
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item_code -= 256
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await write(ctx.bizhawk_ctx, [(DATA_LOCATIONS["APItem"][0],
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[item_code], "WRAM")])
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# LOCATION CHECKS
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locations = set()
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for flag_type, loc_map in location_map.items():
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for flag, loc_id in loc_map.items():
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if flag_type == "list":
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if (data["EventFlag"][location_bytes_bits[loc_id][0]['byte']] & 1 <<
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location_bytes_bits[loc_id][0]['bit']
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and data["Missable"][location_bytes_bits[loc_id][1]['byte']] & 1 <<
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location_bytes_bits[loc_id][1]['bit']):
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locations.add(loc_id)
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elif data[flag_type][location_bytes_bits[loc_id]['byte']] & 1 << location_bytes_bits[loc_id]['bit']:
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locations.add(loc_id)
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if locations != self.locations_array:
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if locations:
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self.locations_array = locations
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await ctx.send_msgs([{"cmd": "LocationChecks", "locations": list(locations)}])
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# AUTO HINTS
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hints = []
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if data["EventFlag"][280] & 16:
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hints.append("Cerulean Bicycle Shop")
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if data["EventFlag"][280] & 32:
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hints.append("Route 2 Gate - Oak's Aide")
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if data["EventFlag"][280] & 64:
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hints.append("Route 11 Gate 2F - Oak's Aide")
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if data["EventFlag"][280] & 128:
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hints.append("Route 15 Gate 2F - Oak's Aide")
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if data["EventFlag"][281] & 1:
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hints += ["Celadon Prize Corner - Item Prize 1", "Celadon Prize Corner - Item Prize 2",
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"Celadon Prize Corner - Item Prize 3"]
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if (location_name_to_id["Fossil - Choice A"] in ctx.checked_locations and location_name_to_id[
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"Fossil - Choice B"]
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not in ctx.checked_locations):
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hints.append("Fossil - Choice B")
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elif (location_name_to_id["Fossil - Choice B"] in ctx.checked_locations and location_name_to_id[
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"Fossil - Choice A"]
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not in ctx.checked_locations):
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hints.append("Fossil - Choice A")
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hints = [
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location_name_to_id[loc] for loc in hints if location_name_to_id[loc] not in self.auto_hints and
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location_name_to_id[loc] in ctx.missing_locations and
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location_name_to_id[loc] not in ctx.locations_checked
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]
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if hints:
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await ctx.send_msgs([{"cmd": "LocationScouts", "locations": hints, "create_as_hint": 2}])
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self.auto_hints.update(hints)
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# DEATHLINK
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if "DeathLink" in ctx.tags:
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if data["Deathlink"][0] == 3:
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await ctx.send_death(ctx.player_names[ctx.slot] + " is out of usable Pokémon! "
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+ ctx.player_names[ctx.slot] + " blacked out!")
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await write(ctx.bizhawk_ctx, [(DATA_LOCATIONS["Deathlink"][0], [0], "WRAM")])
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self.last_death_link = ctx.last_death_link
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elif ctx.last_death_link > self.last_death_link:
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self.last_death_link = ctx.last_death_link
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await write(ctx.bizhawk_ctx, [(DATA_LOCATIONS["Deathlink"][0], [1], "WRAM")])
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# BANK
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if self.banking_command:
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original_money = data["Money"]
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# Money is stored as binary-coded decimal.
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money = int(original_money.hex())
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if self.banking_command > money:
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logger.warning(f"You do not have ${self.banking_command} to deposit!")
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elif (-self.banking_command * BANK_EXCHANGE_RATE) > (ctx.stored_data[f"EnergyLink{ctx.team}"] or 0):
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logger.warning("Not enough money in the EnergyLink storage!")
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else:
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if self.banking_command + money > 999999:
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self.banking_command = 999999 - money
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money = str(money - self.banking_command).zfill(6)
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money = [int(money[:2], 16), int(money[2:4], 16), int(money[4:], 16)]
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money_written = await guarded_write(ctx.bizhawk_ctx, [(0x141F, money, "WRAM")],
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[(0x141F, original_money, "WRAM")])
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if money_written:
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if self.banking_command >= 0:
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deposit = self.banking_command - int(self.banking_command / 4)
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tax = self.banking_command - deposit
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logger.info(f"Deposited ${deposit}, and charged a tax of ${tax}.")
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self.banking_command = deposit
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else:
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logger.info(f"Withdrew ${-self.banking_command}.")
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await ctx.send_msgs([{
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"cmd": "Set", "key": f"EnergyLink{ctx.team}", "operations":
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[{"operation": "add", "value": self.banking_command * BANK_EXCHANGE_RATE},
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{"operation": "max", "value": 0}],
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}])
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self.banking_command = None
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# VICTORY
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if data["EventFlag"][280] & 1 and not ctx.finished_game:
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await ctx.send_msgs([{"cmd": "StatusUpdate", "status": ClientStatus.CLIENT_GOAL}])
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ctx.finished_game = True
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def on_package(self, ctx, cmd, args):
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if cmd == 'Connected':
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if 'death_link' in args['slot_data'] and args['slot_data']['death_link']:
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self.set_deathlink = True
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self.last_death_link = time.time()
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ctx.set_notify(f"EnergyLink{ctx.team}")
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elif cmd == 'RoomInfo':
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if ctx.seed_name and ctx.seed_name != args["seed_name"]:
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# CommonClient's on_package displays an error to the user in this case, but connection is not cancelled.
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self.game_state = False
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self.disconnect_pending = True
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super().on_package(ctx, cmd, args)
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def cmd_bank(self, cmd: str = "", amount: str = ""):
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"""Deposit or withdraw money with the server's EnergyLink storage.
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/bank - check server balance.
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/bank deposit # - deposit money. One quarter of the amount will be lost to taxation.
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/bank withdraw # - withdraw money."""
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if self.ctx.game != "Pokemon Red and Blue":
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logger.warning("This command can only be used while playing Pokémon Red and Blue")
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return
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if (not self.ctx.server) or self.ctx.server.socket.closed or not self.ctx.client_handler.game_state:
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logger.info(f"Must be connected to server and in game.")
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return
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elif not cmd:
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logger.info(f"Money available: {int((self.ctx.stored_data[f'EnergyLink{self.ctx.team}'] or 0) / BANK_EXCHANGE_RATE)}")
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return
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elif not amount:
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logger.warning("You must specify an amount.")
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elif cmd == "withdraw":
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self.ctx.client_handler.banking_command = -int(amount)
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elif cmd == "deposit":
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if int(amount) < 4:
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logger.warning("You must deposit at least $4, for tax purposes.")
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return
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self.ctx.client_handler.banking_command = int(amount)
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else:
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logger.warning(f"Invalid bank command {cmd}")
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return
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