Start work on a command parser
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David Vierra
parent
d03d8c9912
commit
628c2a808c
194
src/mcedit2/util/commandblock.py
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194
src/mcedit2/util/commandblock.py
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# coding=utf-8
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"""
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commandblock
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"""
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from __future__ import absolute_import, division, print_function, unicode_literals
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import logging
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log = logging.getLogger(__name__)
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"""
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/achievement Gives or removes an achievement from a player. Op — — — Players —
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/blockdata Modifies the data tag of a block. Op — Blocks — — —
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/clear Clears items from player inventory. Op — — — Players —
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/clone Copies blocks from one place to another. Op — Blocks — — —
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/defaultgamemode Sets the default game mode. Op — — — — World
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/difficulty Sets the difficulty level. Op — — — Players —
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/effect Add or remove status effects. Op — — Entities Players —
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/enchant Enchants a player item. Op — — — Players —
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/entitydata Modifies the data tag of an entity. Op — — Entities — —
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/execute Executes another command. Op — — — — —
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/fill Fills a region with a specific block. Op — Blocks — — —
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/gamemode Sets a player's game mode. Op — — — Players —
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/gamerule Sets or queries a game rule value. Op — — — — World
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/give Gives an item to a player. Op — — — Players —
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/help Provides help for commands. — — — — — —
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/kill Kills entities (players, mobs, items, etc.). Op — — Entities Players —
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/list Lists players on the server. Op MP — — Players —
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/me Displays a message about yourself. — — — — Players —
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/particle Creates particles. Op — — — Players —
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/playsound Plays a sound. Op — — — Players —
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/replaceitem Replaces items in inventories. Op — Blocks Entities Players —
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/say Displays a message to multiple players. Op — — — — —
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/scoreboard Manages objectives, players, and teams. Op — — Entities Players —
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/seed Displays the world seed. Op — — — — World
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/setblock Changes a block to another block. Op — Blocks — — —
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/setworldspawn Sets the world spawn. Op — — — — World
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/spawnpoint Sets the spawn point for a player. Op — — — Players —
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/spreadplayers Teleports entities to random locations. Op — — Entities Players —
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/stats Update objectives from command results. Op — Blocks Entities Players —
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/summon Summons an entity. Op — — Entities — —
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/tell Displays a private message to other players. — — — — Players —
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/tellraw Displays a JSON message to players. Op — — — Players —
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/testfor Counts entities matching specified conditions. Op — — Entities Players —
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/testforblock Tests whether a block is in a location. Op — Blocks — — —
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/testforblocks Tests whether the blocks in two regions match. Op — Blocks — — —
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/time Changes or queries the world's game time. Op — — — — World
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/title Manages screen titles. Op — — — Players —
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/toggledownfall Toggles the weather. Op — — — — World
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/tp Teleports entities. Op — — Entities Players —
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/trigger Sets a trigger to be activated. — — — — Players —
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/weather Sets the weather. Op — — — — World
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/worldborder Manages the world border. Op — — — — World
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/xp Adds or removes player experience. Op — — — Players —
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The following commands are usable but with limited functionality (their output only
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displays in the command block's Previous Output pane rather than being displayed in the
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chat): /help, /seed, /list, /scoreboard objectives, /scoreboard players, and /scoreboard
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teams list.
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The following commands use the command block's name (defaults to @) in their
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output: /me, /say, and /tell.
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"""
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def ParseCommand(commandText):
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if commandText[0] == "/":
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commandText = commandText[1:]
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name, args = commandText.split(None, 1)
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name = name.lower()
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cmdClass = _commandClasses.get(name)
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if cmdClass is None:
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return UnknownCommand(name, args)
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else:
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return cmdClass(args)
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class UnknownCommand(object):
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def __init__(self, name, args):
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self.name = name
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self.args = args
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class SummonCommand(object):
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name = "summon"
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entityName = NotImplemented
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relX = relY = relZ = False
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x = y = z = 0
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def __repr__(self):
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attrs = "entityName x y z dataTagText".split()
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args = ", ".join("%s=%s" % (a, getattr(self, a)) for a in attrs)
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return "SummonCommand(%s)" % args
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def __str__(self):
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args = self.entityName + " "
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if self.x is not None:
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if self.relX:
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args += "~"
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args += str(self.x) + " "
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if self.y is not None:
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if self.relY:
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args += "~"
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args += str(self.y) + " "
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if self.z is not None:
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if self.relZ:
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args += "~"
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args += str(self.z) + " "
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args += self.dataTagText
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return "/%s %s" % (self.name, args)
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def __init__(self, args):
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self.entityName, args = args.split(None, 1)
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try:
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dataTagStart = args.index("{")
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except ValueError:
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pos = args
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self.dataTagText = ""
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else:
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pos, self.dataTagText = args[:dataTagStart], args[dataTagStart:]
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x, y, z = pos.split(None, 2)
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if len(x):
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if x[0] == '~':
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self.relX = True
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x = x[1:]
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try:
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x = int(x)
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except ValueError:
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x = float(x)
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else:
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x = None
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if len(y):
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if y[0] == '~':
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self.relY = True
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y = y[1:]
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try:
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y = int(y)
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except ValueError:
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y = float(y)
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else:
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y = None
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if len(z):
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if z[0] == '~':
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self.relZ = True
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z = z[1:]
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try:
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z = int(z)
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except ValueError:
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z = float(z)
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else:
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z = None
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self.x = x
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self.y = y
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self.z = z
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_commandClasses = {}
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def addCommandClass(cls):
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_commandClasses[cls.name] = cls
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_cc = [SummonCommand]
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for cc in _cc:
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addCommandClass(cc)
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del _cc
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if __name__ == '__main__':
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cmdText = r'/summon Zombie 2.5 63 -626.5 {Health:18,HealF:18,IsVillager:0,Attributes:[{Name:"generic.followRange",Base:6},{Name:"generic.movementSpeed",Base:0.2},{Name:"generic.knockbackResistance",Base:1.0}],Equipment:[{id:283},{},{},{},{id:332, Age:5980}],PersistenceRequired:1}'
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print("Command: ")
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print(cmdText)
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cmd = ParseCommand(cmdText)
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print("Parsed: ", repr(cmd))
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from mceditlib.util import demjson
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dataTag = demjson.decode(cmd.dataTagText, sort_keys='preserve')
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from pprint import pprint
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print("DataTag: ")
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pprint(dataTag)
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print("Encoded: ")
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encoded = demjson.encode(dataTag, encode_quoted_property_names=False, sort_keys='preserve')
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print(encoded)
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print("Command: ")
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cmd.dataTagText = encoded
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newCmdText = str(cmd)
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print(newCmdText)
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assert str(ParseCommand(newCmdText)) == str(cmd)
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"""
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/summon Zombie ~3 ~ ~3 {"Attributes":[{"Base":6,"Name":"generic.followRange"},{"Base":0.2,"Name":"generic.movementSpeed"},{"Base":1.0,"Name":"generic.knockbackResistance"}],"Equipment":[{"id":283},{},{},{},{"Age":5980,"id":332}],"HealF":18,"Health":18,"IsVillager":0,"PersistenceRequired":1}
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"""
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