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# This Xom vault features the "Monty Hall" problem.
# There are three doors. The idea is to have the player pick one of the
# doors, two have jellies, one has a sheep (the sheep is the 'win' here,
# since it is no threat opposed to the jellies).
# If the player approaches one door, Xom shows where one jelly is hidden.
# The player then can choose to open the door or pick the third one.
{{
function dk_xom_monty_hall(door_char, sheep_char)
local str = "abc"
str = str:gsub(door_char, "")
str = str:gsub(sheep_char, "")
if #str == 2 then
local r = crawl.one_chance_in(2) and 1 or 2
str = str:sub(r, r)
end
crawl.god_speaks("Xom", "You feel as though Xom is toying with you.")
crawl.mpr("Suddenly, the walls become transparent!")
for slave in iter.slave_iterator('char', str) do
dgn.terrain_changed(slave.x, slave.y, "clear_rock_wall", false, false, false)
end
end
function callback.dk_xom_monty_hall_move(data, triggerable, triggerer, marker, ev)
if dgn.persist.dk_xom_monty_hall_triggered then
return
end
dk_xom_monty_hall(data.door, data.sheep)
dgn.persist.dk_xom_monty_hall_triggered = true
end
}}
NAME: dk_xom_monty_hall
TAGS: no_item_gen no_monster_gen temple_overflow_xom uniq_altar_xom
WEIGHT: 3
DEPTH: D:2-7
KFEAT: _ = altar_xom
MONS: generate_awake sheep hd:1
MONS: generate_awake jelly
KFEAT: + = runed_door
{{
dgn.persist.dk_xom_monty_hall_triggered = false
local str = "abc"
local r = crawl.random2(2) + 1
local sheep_char = str:sub(r, r)
local mon = {a ='Q',
b ='W',
c ='E'}
subst(mon[sheep_char] .. '=1')
str = str:gsub(sheep_char, "")
str:gsub(".", function(c)
subst(mon[c] .. '=2')
end)
function get_marker(char)
local marker = TriggerableFunction:new{
func="callback.dk_xom_monty_hall_move",
repeated=true,
data={sheep=sheep_char,
door=char}
}
marker:add_triggerer(DgnTriggerer:new {
type="player_move"})
return marker
end
local str = "abc"
str:gsub(".", function(c)
lua_marker(c, get_marker(c))
lua_marker(string.upper(c), props_marker {char=c})
end)
}}
SUBST: abc = .
SUBST: ABC = x
SUBST: x = ccbbv
KPROP: ._-123 = no_tele_into
MAP
xnxnxnx
xn-----nx
n---_---n
x-------x
x+xx+xx+x
AQABWBCEC
A+AB+BC+C
aaabbbccc
@@@@@@@@@
ENDMAP
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