evennia.contrib.dice

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

Evennia contribution - Griatch 2012

This module implements a full-fledged dice-roller and a ‘dice’ 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.

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:

To use in your code, just import the roll_dice function from this module.

To use the dice/roll command, just import this module in your custom cmdset module and add the following line to the end of DefaultCmdSet’s at_cmdset_creation():

self.add(dice.CmdDice())

After a reload the dice (or roll) command will be available in-game.

evennia.contrib.dice.roll_dice(dicenum, dicetype, modifier=None, conditional=None, return_tuple=False)[source]

This is a standard dice roller.

Parameters
  • dicenum (int) – Number of dice to roll (the result to be added).

  • dicetype (int) – Number of sides of the dice to be rolled.

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

  • conditional (tuple) – A tuple (conditional, value), where conditional is one of “==”,**”<”,”>”,”>=”,”<=**” or “!=”. This allows the roller to directly return a result depending on if the conditional was passed or not.

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

Returns

roll_result (int)

The result of the roll + modifiers. This is the

default return.

condition_result (bool): A True/False value returned if conditional

is set but not return_tuple. This effectively hides the result of the roll.

full_result (tuple): If, return_tuple** is True, instead

return a tuple (result, outcome, diff, rolls). Here, result is the normal result of the roll + modifiers. outcome and diff are the boolean result of the roll and absolute difference to the conditional input; they will be will be None if conditional is not set. rolls is itself a tuple holding all the individual rolls in the case of multiple die-rolls.

Raises

TypeError if non-supported modifiers or conditionals are given.

Notes

All input numbers are converted to integers.

Examples

print roll_dice(2, 6) # 2d6 <<< 7 print roll_dice(1, 100, (‘+’, 5) # 1d100 + 5 <<< 34 print roll_dice(1, 20, conditional=(‘<’, 10) # let’say we roll 3 <<< True print roll_dice(3, 10, return_tuple=True) <<< (11, None, None, (2, 5, 4)) print roll_dice(2, 20, (‘-’, 2), conditional=(‘>=’, 10), return_tuple=True) <<< (8, False, 2, (4, 6)) # roll was 4 + 6 - 2 = 8

class evennia.contrib.dice.CmdDice(**kwargs)[source]

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()[source]

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', '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.dice.DiceCmdSet(cmdsetobj=None, key=None)[source]

Bases: evennia.commands.cmdset.CmdSet

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

at_cmdset_creation()[source]

Called when set is created

path = 'evennia.contrib.dice.DiceCmdSet'