Synchrony

(Z1 floor)
Skeleton = "Xylobones"
Bat = "Fangdango"
Ghoul = "Spiritoso"
Ghost = "Backbeat"
Slime = "Boogie"
Monkey = "Chimptune"
Zombie = "Zombeat"
Trapchest = "Claptrap"
Shopkeeper = "Freddy\nMerchantry"
(switch to Z2 floor)
Mushroom = "Shiitake Shake"
Tarmonster = "Sitar"
Armadillo = "Ariamadillo"
Armoredskeleton = "Bone Thug"
Skeletonmage2 = "Woodwind"
Golem = "Hard Rock"
Clone = "Echo"
Mole = "Fortissimole" (unburrows on middle tile)
Skeletonknight3 = "Boogie Knight"
(switch to Z3 floor... yes this happens one enemy too late)
Hellhound = "Hotdog"
Beetle = "Jitterbug"
Yeti = "Klappa"
Fireelemental = "Accapellemental"
Shovemonster = "Spinto"
Goblin = "Backup Dancer"
ShopkeeperGhost = "Phantom of the Shopera"
(switch to Z4 floor)
Spider = "8-Legato"
Warlock = "Transposer"
Lich = "Gillespie"
Blademaster2 = "Counterpoint"
Gargoyle = "Gwargoyle"
Harpy = "Harpie"
GoblinBomber = "Pop Star"
SleepingGoblin = "Yawni"
Pixie = "Whistlin’ Pixie"
Mummy = "Young MC"
(switch to boss floor)
BatMiniboss = "Fang you.\nFang you very much"
Dragon3 = "Major Scale"
Minotaur = "Head Lyreicist"
Banshee = "Siouxsie"
Nightmare = "No Name"
Mommy = "Old School\nWrapper"
Ogre = "Trollolo"
(switch to Z5 floor)
Devil = "Deviled Egg" (unshells on middle tile)
Gorgon = "Classical Rocker"
ElectricMage = "Fran Zappa"
Orc = "Orchestrator"
Skull = "Head Banger"
Evileye = "EyeTUNES"
ZombieElectric = "The Wire Dept."
Metrognome = "Walk the Tock"
(bosses use more complex scenes, not just one enemy walking through)
"King Conga"
"Death Metal"
"Deep Blues"
"Coral Riff"
"Fortissimole"
"Dead Ringer" / "???"
"The NecroDancer" / "???"
"The Golen Lute" / "???"
"Frankensteinway" / "???"
"The Conductor" / "???"

#!/bin/perl

use v5.016;
use warnings;

# Sample rate used by the intermediate .wav file.
# Higher values give more accurate results, at the cost of more processing time.
# 8000 is probably more than enough.
my $SAMPLE_RATE = 8000;

# Number of samples to use per bit of output.
# Each bit of output corresponds to ($INTERVAL / $SAMPLE_RATE) seconds of audio.
my $INTERVAL = 128;

# The coefficient for the exponentially weighted moving average.
# Lower values make the output smoother and less sensible to noise.
my $ALPHA = 0.01;

# Sound intensity threshold above which to emit lipflaps (on a scale of 0-127).
# Higher values mean the singer will keep its mouth closed more often.
my $THRESHOLD = 8;


sub slurp {
    open my $fh, pop;
    binmode $fh;
    local $/;
    <$fh>
}

slurp('<../config.cfg') =~ /"path":\s*"([^"]+)"/;

for my $ogg (<"$1"/data/sounds_streaming/*_{shopkeeper,vocal}.ogg>) {
    $_ = slurp qq(ffmpeg -y -loglevel quiet -i "$ogg" -ac 1 -ar "$SAMPLE_RATE" -c:a pcm_u8 -f wav -|);

    my ($name, $size, @samples) = unpack "x40L/xa4LC*";
    die "Unexpected tag: $name" unless $name eq "data";

    my $ewma = 0;
    my $output = "";

    for my $i (0 .. $#samples) {
        $ewma *= 1 - $ALPHA;
        $ewma += abs($samples[$i] - 128) * $ALPHA;
        vec($output, $i / $INTERVAL, 1) = $ewma > $THRESHOLD if ($i + 1) % $INTERVAL == 0;
    }

    $ogg =~ /(zone\d|boss)_\d/;
    say "$&: OK";
    open my $fh_out, '>', "$&.lipmap";
    binmode($fh_out);
    print $fh_out $output =~ s/\0*$//r;
}

- Playable characters
    - All
        - Innate wall vision
        - Innate light source
        - Starting bomb count: 0, 1, 2, 3
        - Cursed hearts take damage first
    - Melody
        - Starting health: 2 hearts, 3 hearts
    - Aria
        - Enemy pool: default, scrambled
        - Zone order: reverse, normal
        - Starting health: 0.5 hearts, 1 heart
    - Monk
        - Starting health: 2 hearts, 3 hearts
        - Start with Nazar Charm
        - Vow of Poverty damage: lethal, near-lethal, 0.5 hearts per coin, 1 heart, 0.5 heart, curse health, none
        - Vow of Poverty recoil (1 coin in boss can be picked up still)
        - Vow of Poverty respects potion
    - Coda
        - Vow of Poverty damage: lethal, near-lethal, 0.5 hearts per coin, 1 heart, 0.5 heart, curse health, none
        - Vow of Poverty recoil
        - Vow of Poverty respects potion
    - Bard
        - Starting health: 2 hearts, 3 hearts
    - Mary
        - Sheep damage: grieve, transfer 1x, transfer 2x
        - Sheep affected by Luck items
        - Sheep drinks potions
        - Mary leaps to protect sheep
- Items
    - Item Pools
        - Bomb Charm: fully removed, removed, default, zone 4 boss chest, (pawnbroker)
        - Boots of Leaping
        - Boots of Lunging
        - Charm of Strength
        - Map
        - Monkey's Paw
        - Ring of Courage
        - Shovel of Courage
        - Axe (basic)
        - Axe (blood)
        - Axe (glass)
        - Axe (gold)
        - Axe (titanium)
        - Axe (obsidian)
    - Action items
        - Cursed Potion activation: manual, automatic
        - Cursed Potion bonus health: 0
        - War Drum dig strength boost
        - Magic food overheal hearts: full, cursed, empty
        - Magic food overheal rounding: up, off, down
        - Magic cookie stack size: 6
        - Stack any food
    - Armor
        - Heavy Glass knockback immunity: always, 3 hits only, never
        - Karate Gi damage boost: +1, +2, x2
        - Karate Gi vulnerability: none, +1 damage, x2 damage
    - Charms
        - Frost Charm: greater freeze, freeze
        - Bomb Charm explosion size: small, large
        - Bomb Charm bonus damage: 0, +2, ∞
        - Bomb Charm doubles bomb count
        - Bomb Charm grants bomb vision
        - Bomb Charm generates one bomb per floor
        - Grenade Charm bonus bombs: 0, 1, 2, 3
        - Grenade Charm bomb damage: 0, +2, ∞
        - Grenade Charm replaced by consumable
        - Map aggro range: 0, 1, 2, 3
        - Monkey's Paw: freeze monkeys, charm monkeys, shield 3 grabs, Goof
        - Monkey's Paw affects Tar Monsters
        - Monkey's Paw affects Shovemonsters
        - Monkey's Paw toggleable
        - Potion multi-pickup
    - Bags
        - Holster auto-switch on shatter
        - Holster auto-switch on throw
    - Headgear
        - Blast Helm bonus bombs: 0, 1, 2, 3
        - Telepathy spirits: manifest, reveal, ignore
        - Monocle spirits: manifest, reveal, ignore
    - Footwear
        - Boots of Leaping off penalty: none, drop groove chain, 0.5 damage
        - Boots of Lunging off penalty: none, drop groove chain, 0.5 damage
        - Winged Boots: always on, toggleable, toggleable with damage, destructible
    - Weapons
        - Axe sweep limited to single target
        - Axe sweep limited to 1 damage
        - Whip penetration: default, piercing far, piercing near, piercing always
    - Rings
        - Ring of Gold pickup range boost: 0, +1, +2, ∞
        - Ring of Gold auto-collect on descent
        - Ring of Luck quantum superposition
        - Ring of Mana innate spell: none, spark
    - Spells
        - Cooldowns for all spells
        - Greater Bomb bonus damage: 0, +2, ∞
        - Greater Bomb radius: small, large
        - Greater Bomb only harms enemies
        - Pulse radius: 1, 2, 3, 4, 5, 6, infinite
        - Pulse damage: 1, 2, 3, 4, 5, 6, infinite
        - Pulse collision: stop at walls, pierce walls, attack into walls
        - Greater Pulse radius: 1, 2, 3, 4, 5, 6, infinite
        - Greater Pulse damage: 1, 2, 3, 4, 5, 6, infinite
        - Greater Pulse collision: stop at walls, pierce walls, attack into walls
        - Bomb dig strength: Shop, Catacomb, Stone, Dirt, None
        - Greater Fireball shape: horizontal line, surround, extra-wide, cross
    - Shovels
        - Battle Shovel dig strength: Shop, Catacomb, Stone, Dirt, None
        - Pickaxe insta-digs with Blood Drum
        - Shovel of Courage dig strength: Shop, Catacomb, Stone, Dirt, None
        - Shovel of Courage available to Monk/Coda
        - Shovel of Strength damage boost
        - Shovel of Strength dig strength
        - Shovel of Strength dig radius
    - Torches
        - Bright Torch aggro range: 2
        - Luminous Torch aggro range: 3
- NPCs
    - Pawnbroker
        - Item purchase price multiplier: 0x, 0.25x, 0.5x, 0.75x, 1x
        - Special offer: none, match sold slot, random slot
        - Special offer repeatable: off, once, infinite
        - Special offer allow reselling ("no refunds")
        - Special offer count: 1, 2, 3
        - Special offer price multiplier: 0.125x, 0.25x, 0.375x, 0.5x ..., 1x
        - Special offer single choice
- Shrines
    - Glass Shrine grants Heavy Glass Armor
    - Shrine of Pain drops contain food
    - Shrine of Pain basic reward threshold: 0.5 hearts
    - Shrine of Pain special reward threshold: 2 hearts
- Enemies
    - Activation radius
        - Zone 1 range: 3
        - Zone 2 range: 5
        - Zone 3 range: 7
        - Zone 4 range: 3
        - Zone 5 range: 3
        - Skeleton Knight range limit: 7
    - Damage (maybe generalize?)
        - Purple Goblin damage
        - Grey Goblin damage
        - Black Skeleton damage
        - Black Armored Skeleton damage
        - Black Skeleton Knight damage
    - Spirits
        - Wraith effect: attack, attack and despawn, curse all hearts, weaken, horrify, corrode, blind, shadow, expose, confuse
        - Wight effect
        - Ghast effect
        - Ghoul effect
        - Cursed wraith effect
- Zones
    - Zone 5: At the start, After Zone 1, After Zone 2, After Zone 3, After Zone 4
- Boss fights
    - Death Metal
        - Zone 1 spawn limit
        - Zone 1 spawn wave minimum
        - Zone 1 spawn wave maximum
        - Zone 3 Skeleton Knight parity: random, aligned
    - Coral Riff
        - Black Tentacles protective shell
        - Fewer Black Tentacles
    - Deep Blues
        - Red Pieces protective shell
        - Deep Blues 2 Red Pieces: Random, Knights, Bishops + Knight, Rooks + Knight
    - NecroDancer
        - Stage immune to explosions
        - Stage immune to high-tier shovels
    - The Conductor
        - Enemy spawn limit
        - Enemy spawns per wave: 4
        - Enemy spawn minimum distance
        - Battery health
        - Batteries immune to explosions
        - Batteries extra damage on kill
        - Batteries drained by Conductor spells
        - Battery wire works while levitating
        - Battery wire works while transformed

- Lobby shrines
    - Last One Dancing (Shrine of Glass)
    - Deathmatch (Boss Shrine)
    - Trick or Treat (Shrine of the Feast)
    - Toggle Raveyard generator (Shrine of Space)

- Mechanics
    - All enemies drop candy in addition to gold
        - Candy drops are based on the enemy's natural gold drop amount
        - No coin multiplier is applied when candy is dropped
- Objects
    - Jumpscare chests
        - Some chests do not contain items, but enemies, minibosses or even bosses
    - Spooky barrels
        - Some barrels start rolling themselves at any (non-adjacent) approaching player
    - Sarcophagi as player spawn points
        - Players respawn from a random sarcophagus (instead of at a random point on the floor), replacing the next enemy
        - Walking in any direction frees the player from the sarcophagus, even if the direction is obstructed
    - Mountain of Candy
        - Dropped by bosses, attackable like a crate
        - Yields candy multiple times per hit: 30, 20, 10, 5
        - If multiple players hit it in the same beat, all players get the full amount of candy
- Enemies
    - Skeleton Tombkeeper
        - Periodically picks up the sarcophagus it spawned from, and carries it in a random direction by a few tiles
    - Goblin Trapper
        - When within 3 tiles of a player, leaves behind a trail of traps
    - Pink Leprechaun
        - Spawns when a candy pile of 25 or more is left alone for 7 beats
        - Steals all candy on hit, then disappears
        - Leaves behind a trail of 5 candy per tile, with the same rules as the regular Leprechaun
        - Drops the Candy Magnet on death, on top of a pile of 30 candy pieces
        - Can spawn once per floor
- Events
    - Candy Leak
        - All players leave behind a trail of candy
        - Players can only pick up the candy trails left behind by other players
- Items
    - Goodie Bag
        - Permanent backpack slot item, replaces the default holster in Halloween mode
        - Contains collected candy and allows eating 10 candy to regain half a heart
    - Pumpkin Crown
        - Slotless
        - Indicates top-score, automatically travels to the highest-scoring player using a visual animation
    - Candy Magnet
        - Dagger-range melee weapon
        - Steal 1 candy per non-shielded hit against players or enemies
        - First extra candy is free, further stolen candy is deducted from the monster's natural drops
    - Ghost Costume
        - Armor slot
        - Restricts vision like Ring of Shadows
        - When killed while wearing it, no candy is dropped, and the Ghost Costume is passed on to the killer
        - Disintegrates when wearer is killed by an enemy
    - Shovel of Shove
        - Pushes walls instead of digging them
        - All walls in a row are pushed simultaneously
        - When a wall is pushed into an obstacle (Shop wall or level border), the furthest wall in the row disintegrates
        - When a wall is pushed into a player or enemy, damage is dealt based on the wall's dig strength
    - Infernal Boots
        - Leaves behind a short-lived trail of hot coals
        - Grants immunity to hot coals (both permanent and temporary)
- Spells
    - Possession spell (looks like a lantern)
        - Temporarily take control of a monster or player
    - Ethereal spell (looks like a wraith)
        - Temporarily phase through walls for 8 or 16 beats
        - Can be extended by staying in the wall, but starts dealing suffocation damage until leaving the wall
    - Necromancy spell (looks like a skull)
        - Undead enemies (skeletons, zombies) leave behind bone piles, which can be resurrected
        - The spell resurrects bone piles in a Ring-of-Shadows-like radius around the player
        - Resurrecting a bone pile creates a Red Skeleton, which mirrors the player's movement and drops no candy/gold
    - Invisibility spell
        - Temporarily become invisible for 4 beats
        - No longer targeted by enemies or visible to other players
        - Visibility is broken upon being hit or upon digging
        - It is not possible to attack or use items during invisibility
        - Last beat of invisibility is telegraphed
    - Projection spell
        - Creates fake, non-colliding ghost copies of the player that mirror the player's movement
        - To the caster, they appear semi-transparent and can be walked through
        - To other players, they appear as exact copies of the player and can be attacked
        - To monsters, they appear as a valid target
        - They despawn when hit, when bumping into an obstacle, or automatically after a few beats
    - Curse spell (looks like a weird Transmute Spell)
        - Curses nearby entities on adjacent tiles in various ways
        - Cursing an enemy causes it to split into two copies of itself upon death
        - Cursing a mushroom light causes it to turn into an angry giant mushroom light on the next hit
        - Cursing a shopkeeper causes them to start chasing players without attacking
        - Cursing an item causes it to disintegrate on pickup, forcing the player to step off and pick up the old item
        - Cursing a bomb turns it into what seems like a normal bomb item, which immediately drops a lit bomb on pickup
        - Cursing a chest causes it to spawn an enemy or miniboss instead of an item
        - Cursing an urn causes it to spawn two minibosses and a boss instead of three items
        - Cursing a wall causes it to spawn a skeleton when dug
        - Cursing a trap causes it to stick to the first player to step on it, leaving behind a trail of traps
        - Cursing a travel rune causes it to teleport players to a random location on the floor
        - Cursing a player causes them to get teleported to a random location on the floor
    - Levitation spell
        - Grants temporary levitation for 16 beats