99 lines
3.5 KiB
Python
99 lines
3.5 KiB
Python
from minecraft.networking.packets import Packet
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from minecraft.networking.types import (
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VarInt, Integer, String, MutableRecord
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)
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class CombatEventPacket(Packet):
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@staticmethod
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def get_id(context):
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return 0x31 if context.protocol_version >= 741 else \
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0x32 if context.protocol_version >= 721 else \
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0x33 if context.protocol_version >= 550 else \
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0x32 if context.protocol_version >= 471 else \
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0x30 if context.protocol_version >= 451 else \
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0x2F if context.protocol_version >= 389 else \
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0x2E if context.protocol_version >= 345 else \
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0x2D if context.protocol_version >= 336 else \
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0x2C if context.protocol_version >= 332 else \
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0x2D if context.protocol_version >= 318 else \
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0x2C if context.protocol_version >= 86 else \
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0x2D if context.protocol_version >= 80 else \
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0x2C if context.protocol_version >= 67 else \
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0x42
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packet_name = 'combat event'
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fields = 'event',
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# The abstract type of the 'event' field of this packet.
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class EventType(MutableRecord):
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__slots__ = ()
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type_from_id_dict = {}
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# Read the fields of the event (not including the ID) from the file.
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def read(self, file_object):
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raise NotImplementedError(
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'This abstract method must be overridden in a subclass.')
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# Write the fields of the event (not including the ID) to the buffer.
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def write(self, packet_buffer):
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raise NotImplementedError(
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'This abstract method must be overridden in a subclass.')
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@classmethod
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def type_from_id(cls, event_id):
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subcls = cls.type_from_id_dict.get(event_id)
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if subcls is None:
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raise ValueError('Unknown combat event ID: %s.' % event_id)
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return subcls
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class EnterCombatEvent(EventType):
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__slots__ = ()
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id = 0
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def read(self, file_object):
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pass
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def write(self, packet_buffer):
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pass
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EventType.type_from_id_dict[EnterCombatEvent.id] = EnterCombatEvent
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class EndCombatEvent(EventType):
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__slots__ = 'duration', 'entity_id'
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id = 1
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def read(self, file_object):
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self.duration = VarInt.read(file_object)
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self.entity_id = Integer.read(file_object)
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def write(self, packet_buffer):
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VarInt.send(self.duration, packet_buffer)
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Integer.send(self.entity_id, packet_buffer)
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EventType.type_from_id_dict[EndCombatEvent.id] = EndCombatEvent
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class EntityDeadEvent(EventType):
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__slots__ = 'player_id', 'entity_id', 'message'
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id = 2
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def read(self, file_object):
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self.player_id = VarInt.read(file_object)
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self.entity_id = Integer.read(file_object)
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self.message = String.read(file_object)
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def write(self, packet_buffer):
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VarInt.send(self.player_id, packet_buffer)
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Integer.send(self.entity_id, packet_buffer)
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String.send(self.message, packet_buffer)
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EventType.type_from_id_dict[EntityDeadEvent.id] = EntityDeadEvent
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def read(self, file_object):
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event_id = VarInt.read(file_object)
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self.event = CombatEventPacket.EventType.type_from_id(event_id)()
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self.event.read(file_object)
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def write_fields(self, packet_buffer):
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VarInt.send(self.event.id, packet_buffer)
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self.event.write(packet_buffer)
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