mirror of
https://github.com/TriM-Organization/Musicreater.git
synced 2024-09-20 21:22:32 +00:00
217 lines
7.9 KiB
Python
217 lines
7.9 KiB
Python
import os
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import brotli
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'''感谢由 Charlie_Ping “查理平” 带来的bdx转换代码'''
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class BdxConverter:
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__header = "BD@"
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__bin_header = b"BDX"
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__generator_author = b"& Musicreater"
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keys = {
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# x--, x++, addSmallX(-128~127), addX(-32768~32767), addBigX(-2147483648~2147483647)
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"x": [b"\x0f", b"\x0e", b"\x1c", b"\x14", b"\x15"],
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"y": [b"\x11", b"\x10", b"\x1d", b"\x16", b"\x17"],
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"z": [b"\x13", b"\x12", b"\x1e", b"\x18", b"\x19"],
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"end": b"\x58",
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"isSigned": b"\x5a",
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"placeCommandBlockWithData": b"\x1b",#用不上
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"placeBlock": b"\x07"
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}
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def __init__(self, file_path: str, author: str, blocks):
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self.author = author
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self.blocks = blocks
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self.file_path = file_path
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self.direction = [0, 0, 0]
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self.block_type = self.get_block_type
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self.__file = self.create_and_upload_file
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@property
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def get_block_type(self):
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"""
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blocks
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[
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{
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"direction": [x: int, y: int, z: int],
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block_name: str,
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particular_value: int,
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}
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]
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:return: list 给出的所有方块种类名称
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"""
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block_type = set()
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for block in self.blocks:
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block_type.add(block["block_name"])
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block_type = list(block_type)
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return block_type
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@property
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def create_and_upload_file(self):
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"""
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创建一个bdx文件
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:return: 一个文件对象
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"""
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_dir = os.path.dirname(self.file_path)
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if not os.path.isdir(_dir):
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os.makedirs(_dir)
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_bytes = self.__bin_header
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_bytes += b"\x00"
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_bytes += self.author.encode("utf-8") + self.__generator_author
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for i in self.block_type:
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_bytes += b"\x00\x01"
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_bytes += bytes(i, encoding="utf-8")
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_bytes += b"\x00"
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_bytes += self.upload_blocks()
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_bytes += b"X"
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with open(self.file_path, "w+") as f:
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f.write("BD@")
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f.close()
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with open(self.file_path, "ab+") as f:
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f.write(brotli.compress(_bytes))
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f.close()
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return open(self.file_path,'a+')
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def upload_blocks(self):
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"""
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计算差值
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写入移动过程
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写入方块
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更新差值
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:return:
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"""
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_types = b""
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for block in self.blocks:
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# print(f"当前方块：{block['block_name']}, 位置： {block['direction']}]")
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diff = self.move_pointer(self.direction, block["direction"])
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_types += diff
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if block["block_name"] in ["command_block",
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"chain_command_block",
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"repeating_command_block"]:
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_types += self.obtain_command_block(block)
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else:
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_types += self.obtain_universal_block(block)
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self.direction = block["direction"]
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return _types
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def move_pointer(self, direction: list, new_direction):
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"""
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给出 两个[x, y, z]坐标，返回pointer的移动过程
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:param direction: 坐标 1
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:param new_direction: 坐标 2
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:return: bytes
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"""
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_bytes = b""
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for i, sign in enumerate(["x", "y", "z"]):
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# print(f"<{sign}> 新-旧={new_direction[i]-direction[i]}")
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distance = new_direction[i] - direction[i]
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if distance == 0:
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# print("距离是0？跳过了")
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continue
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_bytes += self.obtain_pointer_type(distance, sign)
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# print(f"向 {sign} 运动了 {distance} 格子")
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return _bytes
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@classmethod
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def obtain_pointer_type(cls, num: int, coordinate: str):
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"""
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用于确定辅助玩家以某一数据类型走指定长度
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-1 -> 0
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1 -> 1
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[128, 127] -> 2
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[-32768, 32767] -> 3
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[-2147483648, 2147483647] -> 4
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:param num:
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:param coordinate: 坐标轴种类，x y 或 z
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:return:
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"""
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if num == 0:
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return
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pointer = 0
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condition = (num != -1, # byte=0, pointer=1
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num < -1 or num > 1, # byte=1, pointer=2
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num < -128 or num > 127, # byte=2, pointer=3
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num < -32768 or num > 32767, # byte=4, pointer=4
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)
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for i in condition:
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if i:
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pointer += 1
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pointer_type = cls.keys[coordinate][pointer]
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byte_len = 2 ** (pointer - 2)
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if byte_len >= 1:
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num_byte = num.to_bytes(byte_len, byteorder="big", signed=True)
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return pointer_type + num_byte
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return pointer_type
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def obtain_universal_block(self, block):
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"""
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给定一个方块， 返回此方块在这个bdx中的id和方块data
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:param block: {block_name: str,particular_value: int}
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:return: bytes
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"""
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block_id = b"\x07" + self.block_type.index(block["block_name"]).to_bytes(2, byteorder="big", signed=False)
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particular_value = block["particular_value"].to_bytes(2, byteorder="big", signed=False)
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block_header = block_id + particular_value
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return block_header
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def obtain_command_block(self, block):
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"""
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给定一个命令方块，返回命令方块各种数据
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:param block: {
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"direction": [x: int, y: int, z: int]
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"block_name": str,
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"particular_value": int,
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"impluse": int, # unsigned_int32
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"command": str,
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"customName": str,
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"lastOutput": str, # 没特殊要求写个\x00就得了
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"tickdelay": int, # int32
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"executeOnFirstTick": int, # 1 bytes
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"trackOutput": int, # 1 bytes
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"conditional": int, # 1 bytes
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"needRedstone": int # 1 bytes
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}
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:return: bytes of command_block
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"""
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block_id = b"\x24"
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particular_value = block["particular_value"].to_bytes(2, byteorder="big", signed=False)
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block_header = block_id + particular_value
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for i in [
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block["impluse"].to_bytes(4, byteorder="big", signed=False),
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bytes(block["command"], encoding="utf-8") + b"\x00",
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bytes(block["customName"], encoding="utf-8") + b"\x00",
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bytes(block["lastOutput"], encoding="utf-8") + b"\x00",
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block["tickdelay"].to_bytes(4, byteorder="big", signed=True),
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block["executeOnFirstTick"].to_bytes(1, byteorder="big"),
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block["trackOutput"].to_bytes(1, byteorder="big"),
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block["conditional"].to_bytes(1, byteorder="big"),
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block["needRedstone"].to_bytes(1, byteorder="big")
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]:
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block_header += i
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return block_header
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if __name__ == '__main__':
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block = [{"direction": [-1, -1, -1], "block_name": "concrete", "particular_value": 5},
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{"direction": [1, 5, 1], "block_name": "stained_glass", "particular_value": 7},
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{"direction": [2, 4, 1], "block_name": "command_block", "particular_value": 3,
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"impluse": 0,
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"command": "say A generator test",
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"customName": "test",
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"lastOutput": "",
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"tickdelay": 24,
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"executeOnFirstTick": 0,
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"trackOutput": 0,
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"conditional": 0,
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"needRedstone": 1
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},
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{"direction": [3, 4, 1], "block_name": "concrete", "particular_value": 6},
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{"direction": [-123412133, 4, 1], "block_name": "concrete", "particular_value": 7}]
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bdx = BdxConverter("./test02.bdx", "Charlie_Ping",block)
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