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|
#!/usr/bin/env ruby
require 'discordrb'
def make_roll(dX = 100)
rand(100_000_000 * dX) % dX
end
def calc_sups(roll, vs)
case roll
when 0
success = true
when 99
success = false
else
success = roll <= vs
end
(success ? roll : (99 - roll)) / 33
end
def calc_crit(roll)
roll / 10 == roll % 10
end
def human_result(name, data, prefix = "")
roll, vs, fr, flip, up, down = data
case roll
when 0
crit = true
success = true
when 99
crit = true
success = false
else
crit = calc_crit(roll)
success = roll <= vs
end
sups = calc_sups(roll, vs)
sups += 1 if up
crit = false if down
prefix + "#{name} rolled `#{roll}` against `#{vs}`" +
"#{fr.empty? ? "" : " for \"#{fr.join(' ')}\""}. " +
"That is " +
(sups > 1 ? "two " : "a ") +
(sups > 0 ? "_superior_ " : "") +
(crit ? "_**critical**_ " : "") +
(success ? "success" : "failure") +
(sups > 1 ? (success ? "es" : "s") : "")
end
last_roll = {}
bot = Discordrb::Commands::CommandBot.new token: ENV['DISCORD_TOKEN'], client_id: ENV['DISCORD_ID'], prefix: '!'
bot.command(:vs, description: "Roll a d100 (0-99) against a target number, with optional comment.") do |event, vs, *fr|
vs = vs.to_i
roll = make_roll
data = [roll, vs, fr, false, false, false]
last_roll[event.author.id] = data
res = human_result(event.author.display_name, data)
puts res
res
end
bot.command(:again, description: "Repeat your last vs roll.") do |event|
data = last_roll[event.author.id]
roll, vs, fr, flip, up, down = data
if roll.nil?
res = "You need to roll something first, #{event.author.display_name}!"
else
roll = make_roll
data = [roll, vs, fr, false, false, false]
last_roll[event.author.id] = data
res = human_result(event.author.display_name, data , "Repeat: ")
end
puts res
res
end
bot.command(:flipflop, description: "Swap the digits on your last vs roll.") do |event|
data = last_roll[event.author.id]
roll, vs, fr, flip, up, down = data
if roll.nil?
res = "You need to roll something first, #{event.author.display_name}!"
elsif up
res = "You have already upgraded this success, #{event.author.display_name}."
elsif up
res = "You have already downgraded this failure, #{event.author.display_name}."
else
roll = ((roll % 10) * 10) + (roll / 10)
last_roll[event.author.id] = [roll, vs, fr, !flip, up, down]
res = human_result(event.author.display_name, data, (flip ? "Unflip-flop: " : "Flip-flop: "))
end
puts res
res
end
bot.command(:upgrade, description: "Increase the number of superiors on your last vs roll.") do |event|
data = last_roll[event.author.id]
roll, vs, fr, flip, up, down = data
if roll.nil?
res = "You need to roll something first, #{event.author.display_name}!"
elsif flip
res = "You have already flip-flopped this roll, #{event.author.display_name}."
elsif down
res = "You have already downgraded this failure, #{event.author.display_name}."
elsif calc_sups(roll, vs) > 1
res = "This is already two superior successes, #{event.author.display_name}!"
else
last_roll[event.author.id] = [roll, vs, fr, flip, !up, down]
res = human_result(event.author.display_name, data, (up ? "Unupgrade: " : "Upgrade: "))
end
puts res
res
end
bot.command(:downgrade, description: " last vs roll.") do |event|
data = last_roll[event.author.id]
roll, vs, fr, flip, up, down = data
if roll.nil?
res = "You need to roll something first, #{event.author.display_name}!"
elsif flip
res = "You have already flip-flopped this roll, #{event.author.display_name}."
elsif up
res = "You have already upgraded this success, #{event.author.display_name}."
elsif !calc_crit(roll)
res = "This isn't a critical failure, #{event.author.display_name}."
else
last_roll[event.author.id] = [roll, vs, fr, flip, up, !down]
res = human_result(event.author.display_name, data, (down ? "Undowngrade: " : "Downgrade: "))
end
puts res
res
end
bot.command(:remind, description: "Get a reminder of the result of your last vs roll.") do |event|
data = last_roll[event.author.id]
if roll.nil?
res = "You need to roll something first, #{event.author.display_name}!"
else
res = human_result(event.author.display_name, data, "Reminder: ")
end
puts res
res
end
bot.command(:init, description: "Roll a d6 (1-6) and add an init modifier, with two tie-break d6 (0-5) rolloffs.") do |event, mod|
mod = mod.to_i
roll = make_roll(6) + 1
tot = roll + mod
d1 = make_roll(6)
d2 = make_roll(6)
res = "#{event.author.display_name} rolled `#{roll}` and scored `#{tot}.#{d1}#{d2}` for initiative."
puts res
res
end
bot.command(:unitest, description: "Perform a uniformity test for peace of mind.") do |event|
t = 10_000_000
u = t / 100
a = Array.new(100, 0)
t.times { a[make_roll] += 1 }
d2 = a.map { |o| (o - u) ** 2 }
s2 = d2.sum / 100.0
s = s2 ** 0.5
res = "#{event.author.display_name} requested a uniformity test. #{t} d100s were rolled and counted. The standard deviation was #{"%.2f" % s}, which means 68% of the possible outcomes each appeared within #{s.ceil} of the expected #{u} times, 95% within #{(s*2).ceil}, and 99.7% within #{(s*3).ceil}."
puts res
res
end
bot.command(:reseed, description: "Reseed the PRNG if you're feeling particularly superstitious about the rolls.") do |event|
srand
res = "#{event.author.display_name} requested the PRNG be reseeded."
puts res
res
end
bot.run
|
