evennia.contrib.rpg.dice.dice

Dice

Rolls dice for roleplaying, in-game gambling or GM:ing

Evennia contribution - Griatch 2012

This module implements a a dice-roller and a dice/roll command to go with it. It uses standard RPG ‘d’-syntax (e.g. 2d6 to roll two six-sided die) and also supports modifiers such as 3d6 + 5.

> roll 1d20 + 2

One can also specify a standard Python operator in order to specify eventual target numbers and get results in a fair and guaranteed unbiased way. For example a GM could (using the dice command) from the start define the roll as 2d6 < 8 to show that a roll below 8 is required to succeed. The command will normally echo this result to all parties (although it also has options for hidden and secret rolls).

Installation:

Add the CmdDice command from this module to your character’s cmdset (and then restart the server):

# in mygame/commands/default_cmdsets.py

# ...
from evennia.contrib.rpg import dice  <---

class CharacterCmdSet(default_cmds.CharacterCmdSet):
    # ...
    def at_cmdset_creation(self):
        # ...
        self.add(dice.CmdDice())  # <---

Usage:

roll 1d100 + 10

To roll dice in code, use the roll function from this module:

from evennia.contrib.rpg import dice

dice.roll(“3d10 + 2”)

If your system generates the dice dynamically you can also enter each part of the roll separately:

dice.roll(3, 10, (“+”, 2)) # 3d10 + 2

evennia.contrib.rpg.dice.dice.roll(dice, dicetype=6, modifier=None, conditional=None, return_tuple=False, max_dicenum=10, max_dicetype=1000)

This is a standard dice roller.

Parameters

• dice (int or str) – If an int, this is the number of dice to roll, and dicetype is used to determine the type. If a str, it should be on the form NdM where N is the number of dice and M is the number of sides on each die. Also NdM [modifier] [number] [conditional] is understood, e.g. 1d6 + 3 or 2d10 / 2 > 10.

• dicetype (int, optional) – Number of sides of the dice to be rolled. Ignored if dice is a string.

• modifier (tuple, optional) – A tuple (operator, value), where operator is one of “+”, “-”, “/” or “*”. The result of the dice roll(s) will be modified by this value. Ignored if dice is a string.

• conditional (tuple, optional) – A tuple (conditional, value), where conditional is one of “==”,**”<”,”>”,”>=”,”<=**” or “!=”. Ignored if dice is a string.

• return_tuple (bool) – Return a tuple with all individual roll results or not.

• max_dicenum (int) – The max number of dice to allow to be rolled.

• max_dicetype (int) – The max number of sides on the dice to roll.

Returns

int, bool or tuple – By default, this is the result of the roll + modifiers. If conditional is given, or dice is a string defining a conditional, then a True/False value is returned. Finally, if return_tuple is set, this is a tuple (result, outcome, diff, rolls), where, result is the the normal result of the roll + modifiers, outcome and diff are the boolean absolute difference between the roll and the conditional input; both will be will be None if conditional is not set. The rolls a tuple holding all the individual rolls (one or more depending on how many dice were rolled).

Raises

TypeError if non-supported modifiers or conditionals are given. –

Notes

All input numbers are converted to integers.

Examples

::

# string form print roll(“3d6 + 2”) 10 print roll(“2d10 + 2 > 10”) True print roll(“2d20 - 2 >= 10”) (8, False, 2, (4, 6)) # roll was 4 + 6 - 2 = 8

# explicit arguments print roll(2, 6) # 2d6 7 print roll(1, 100, (‘+’, 5) # 1d100 + 5 4 print roll(1, 20, conditional=(‘<’, 10) # let’say we roll 3 True print roll(3, 10, return_tuple=True) (11, None, None, (2, 5, 4)) print roll(2, 20, (‘-’, 2), conditional=(‘>=’, 10), return_tuple=True) (8, False, 2, (4, 6)) # roll was 4 + 6 - 2 = 8

evennia.contrib.rpg.dice.dice.roll_dice(dice, dicetype=6, modifier=None, conditional=None, return_tuple=False, max_dicenum=10, max_dicetype=1000)

This is a standard dice roller.

Parameters

• dice (int or str) – If an int, this is the number of dice to roll, and dicetype is used to determine the type. If a str, it should be on the form NdM where N is the number of dice and M is the number of sides on each die. Also NdM [modifier] [number] [conditional] is understood, e.g. 1d6 + 3 or 2d10 / 2 > 10.

• dicetype (int, optional) – Number of sides of the dice to be rolled. Ignored if dice is a string.

• modifier (tuple, optional) – A tuple (operator, value), where operator is one of “+”, “-”, “/” or “*”. The result of the dice roll(s) will be modified by this value. Ignored if dice is a string.

• conditional (tuple, optional) – A tuple (conditional, value), where conditional is one of “==”,**”<”,”>”,”>=”,”<=**” or “!=”. Ignored if dice is a string.

• return_tuple (bool) – Return a tuple with all individual roll results or not.

• max_dicenum (int) – The max number of dice to allow to be rolled.

• max_dicetype (int) – The max number of sides on the dice to roll.

Returns

int, bool or tuple – By default, this is the result of the roll + modifiers. If conditional is given, or dice is a string defining a conditional, then a True/False value is returned. Finally, if return_tuple is set, this is a tuple (result, outcome, diff, rolls), where, result is the the normal result of the roll + modifiers, outcome and diff are the boolean absolute difference between the roll and the conditional input; both will be will be None if conditional is not set. The rolls a tuple holding all the individual rolls (one or more depending on how many dice were rolled).

Raises

TypeError if non-supported modifiers or conditionals are given. –

Notes

All input numbers are converted to integers.

Examples

::

# string form print roll(“3d6 + 2”) 10 print roll(“2d10 + 2 > 10”) True print roll(“2d20 - 2 >= 10”) (8, False, 2, (4, 6)) # roll was 4 + 6 - 2 = 8

# explicit arguments print roll(2, 6) # 2d6 7 print roll(1, 100, (‘+’, 5) # 1d100 + 5 4 print roll(1, 20, conditional=(‘<’, 10) # let’say we roll 3 True print roll(3, 10, return_tuple=True) (11, None, None, (2, 5, 4)) print roll(2, 20, (‘-’, 2), conditional=(‘>=’, 10), return_tuple=True) (8, False, 2, (4, 6)) # roll was 4 + 6 - 2 = 8

class evennia.contrib.rpg.dice.dice.CmdDice(**kwargs)

Bases: evennia.commands.default.muxcommand.MuxCommand

roll dice

Usage:

dice[/switch] <nr>d<sides> [modifier] [success condition]

Switch:

hidden - tell the room the roll is being done, but don’t show the result secret - don’t inform the room about neither roll nor result

Examples

dice 3d6 + 4 dice 1d100 - 2 < 50

This will roll the given number of dice with given sides and modifiers. So e.g. 2d6 + 3 means to ‘roll a 6-sided die 2 times and add the result, then add 3 to the total’. Accepted modifiers are +, -, * and /. A success condition is given as normal Python conditionals (<,>,<=,>=,==,!=). So e.g. 2d6 + 3 > 10 means that the roll will succeed only if the final result is above 8. If a success condition is given, the outcome (pass/fail) will be echoed along with how much it succeeded/failed with. The hidden/secret switches will hide all or parts of the roll from everyone but the person rolling.

key = 'dice'

aliases = ['roll', '@dice']

locks = 'cmd:all()'

func()

Mostly parsing for calling the dice roller function

help_category = 'general'

lock_storage = 'cmd:all()'

search_index_entry = {'aliases': 'roll @dice', 'category': 'general', 'key': 'dice', 'no_prefix': ' roll dice', 'tags': '', 'text': "\n roll dice\n\n Usage:\n dice[/switch] <nr>d<sides> [modifier] [success condition]\n\n Switch:\n hidden - tell the room the roll is being done, but don't show the result\n secret - don't inform the room about neither roll nor result\n\n Examples:\n dice 3d6 + 4\n dice 1d100 - 2 < 50\n\n This will roll the given number of dice with given sides and modifiers.\n So e.g. 2d6 + 3 means to 'roll a 6-sided die 2 times and add the result,\n then add 3 to the total'.\n Accepted modifiers are +, -, * and /.\n A success condition is given as normal Python conditionals\n (<,>,<=,>=,==,!=). So e.g. 2d6 + 3 > 10 means that the roll will succeed\n only if the final result is above 8. If a success condition is given, the\n outcome (pass/fail) will be echoed along with how much it succeeded/failed\n with. The hidden/secret switches will hide all or parts of the roll from\n everyone but the person rolling.\n "}

class evennia.contrib.rpg.dice.dice.DiceCmdSet(cmdsetobj=None, key=None)

Bases: evennia.commands.cmdset.CmdSet

a small cmdset for testing purposes. Add with @py self.cmdset.add(“contrib.dice.DiceCmdSet”)

at_cmdset_creation()

Called when set is created

path = 'evennia.contrib.rpg.dice.dice.DiceCmdSet'