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Added support for snapshot 20w13a

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This commit is contained in:
Tristan Gosselin-Hane 2020-03-25 20:04:55 -04:00
parent 76f7b4bdc9
commit 428a599f40
2 changed files with 16 additions and 3 deletions
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1
minecraft/__init__.py
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@ -232,6 +232,7 @@ SUPPORTED_MINECRAFT_VERSIONS = {
'20w10a': 705,
'20w11a': 706,
'20w12a': 707,
'20w13a': 708,
}
# Those Minecraft versions supported by pyCraft which are "release" versions,

18
minecraft/networking/types/basic.py
View File

@ -253,6 +253,14 @@ class VarIntPrefixedByteArray(Type):
socket.send(struct.pack(str(len(value)) + "s", value))
# https://stackoverflow.com/questions/1604464/twos-complement-in-python
def twos_comp(val, bits):
"""compute the 2's complement of int value val"""
if (val & (1 << (bits - 1))) != 0: # if sign bit is set
val = val - (1 << bits) # compute negative value
return val # return positive value as is
class UUIDIntegerArray(Type):
""" Minecraft sends an array of 4 integers to represent the most
significant and least significant bits (as longs) of a UUID
@ -263,7 +271,7 @@ class UUIDIntegerArray(Type):
def read(file_object):
ints = struct.unpack("4i", file_object.read(4 * 4))
packed = struct.pack("<qq", ints[1] << 32 | ints[0] & 0xffffffff,
ints[3] << 32 | ints[2] & 0xffffffff)
ints[3] << 32 | ints[2] & 0xffffffff)
packed_uuid = uuid.UUID(bytes=packed)
return str(packed_uuid)
@ -271,8 +279,12 @@ class UUIDIntegerArray(Type):
def send(value, socket):
player_uuid = uuid.UUID(value)
msb, lsb = struct.unpack(">qq", player_uuid.bytes)
socket.send(struct.pack("4i", msb & 0xffffffff, msb >> 32,
lsb & 0xffffffff, lsb >> 32))
socket.send(struct.pack(">4i", msb >> 32,
twos_comp(msb & 0xffffffff, 32),
lsb >> 32,
twos_comp(lsb & 0xffffffff, 32)
)
)
class TrailingByteArray(Type):