Keeping And Training Pets In Nethack And Slash'EM

Introduction

Tameness And Apport

The higher your pet's apport is, the better it is at stealing from shops. A pet with high apport has a greater tendency to pick up and drop objects, and also favours dropping objects close to the hero over dropping them anywhere else. Apport is reduced by 1 each time the pet drops an object, and can be increased by rewarding the pet with food it likes (tripe or meatballs for a cat or dog, apples or carrots for a horse) as soon as possible after it has dropped something. The reward must be a treat (corpses do not count) and the hero must have picked it up at some point, but it is not necessary to throw the treat to the pet. When the hero rewards the pet, its apport is increased by

where ``dropdist'' is the distance from you to your pet last time it dropped something. Thus the best-case scenario is when your pet drops an item at your feet and you reward it immediately, in which case its apport goes up by 100. In practice, when your pet's apport is very low, it is generally quicker to reward it as soon as possible after it drops an item anywhere. This will raise its apport and hence its tendency to drop items at your feet, and you can reward it again when it does so.

A pet's tameness is changed in the following circumstances. If its tameness falls to zero, it will no longer be tame, but will remain peaceful unless otherwise stated.

• Increased by 1 point up to a maximum of 20 whenever the pet eats.
• Reading the blessed Book of the Dead will tame nearby undead of your alignment, or if they were already tame, will increase their tameness by 1, up to a maximum of 20.

• When hero abuses pet by attacking it, displacing it into a trap or unsuccessfully trying to release it from a bear trap, halved if hero is aggravating monsters or causing conflict, and otherwise decreased by 1 point.
• Decreased by 1 point for every 150 moves spent on a different level from the hero. (In Slash'EM, only werecreatures, mindless creatures, undead, demons and animals will go feral when abandoned.) If this decreases tameness to zero or less, the pet is no longer tame and may be hostile. Also, if the pet would have starved to death while away from the hero, it becomes hostile instead.
• A steed's tameness is decreased by 1 point when the hero kicks or whips it. Unless you are a Knight, mounting a pet also decreases its tameness by 1 point.
• Decreased by 1 point when the pet becomes unleashed because it hit a trap which sent it to another level.
• May be decreased by 1 point when the pet chokes on a cursed leash. The chance of this not happening is 1 in its tameness, so a pet will never go wild as a result.
• A pet displaced out of a trap may become hostile, with a chance of 1 in its tameness.

In Slash'EM, the following types of pet can rebel (spontaneously turn hostile): migo drone, migo warrior, assassin bug, death dog, rabid wolf, shadow wolf, displacer beast, hellcat, gremlin, gargoyle, winged gargoyle, dwarf thief, deep one, deeper one, deepest one, mind flayer, master mind flayer, dretch, rutterkin, nupperibo, blood imp, all kobolds, quickling, all orcs, mangler, harpy, byakhee, nightgaunt, forest centaur, mountain centaur, deep dragon, red dragon, white dragon, orange dragon, black dragon, blue dragon, stalker, gnome thief, Ruggo the Gnome King, all gnolls, the Largest Giant, Father Dagon, Mother Hydra, all liches, all ogres, shoggoth, giant shoggoth, disenchanter, all trolls, all vampires, ghoul mages, ghoul queens, gugs, gibberlings, grimlocks, drow, mugger, gypsy, all demons except water demons, erinys and sandestins. This will only happen when the pet has at least as many HP as you do and is three or fewer squares away. Pets with high tameness or which haven't been abused much are less likely to rebel. Abusing your pet is likely to trigger a rebellion, but there is also a small chance that the pet will rebel at any time.

Tameness affects your chance of successfully saddling or riding a steed, but does not have any other effect on a pet's behaviour.

Things A Pet Eats

• Treats, which the pet really likes and which can be used as rewards to train it.
• Good food which doesn't count as a treat but which the pet will eat even when not hungry.
• Acceptable food which the pet will only eat when hungry.

Almost all monsters can be classfied as carnivorous, herbivorous, omnivorous, metallivorous or non-eating:

Carnivores

Giant ants, giant ticks, giant fleas, soldier ants, fire ants, snow ants, giant beetles, giant lice, spitting beetles, assassin bugs, killer beetles, all d, all f, all mimics, all piercers, giant badgers, scrampers, squealers, manglers, all rats, all s, all t, all w except larvae, echnidae, platypuses, all B except vampire bats, byakhees and nightgaunts, all D, all H except titans, the Cyclops, Lord Surtur, Father Dagon and Mother Hydra, (vorpal) jabberwocks, black naga hatchlings, black nagas, all ogres, disenchanters, all snakes, all trolls, all U, vampires, vampire lords, vampire mages, Vlad the Impaler, all Y except monkeys, (ordinary) apes and sasquatches, ghouls, ghasts, gugs, piranhas, giant eels, sharks, electric eels, kraken, all ``:'' except salamanders, all evil food, all evil coins.

Herbivores

Chickens, cockatoos, parrots, lambs, sheep, goats, cows, bulls, mumakil, titanotheres, baluchitheria, mastodons, Jumbo the Elephant, juggernauts, catoblepases, (rabid) rabbits, woodchucks, all u except Pegasus, koalas, wombats, wallabies, wallaroos, kangaroos, the Grand Master, Master Kaen, abbots, monks.

Omnivores

Migo drones, migo warriors, migo queens, gelatinous cubes, chickatrices, cockatrices, pyrolisks, hobbits, dwarves, bugbears, dwarf lords, dwarf kings, dwarf thieves, (master) mind flayers, deep ones, deeper ones, deepest ones, clear jellies, yellow jellies, orange jellies, rancid jellies, all kobolds, all orcs, rothes, leocrottas, wumpuses, Tasmanian devils, vampire bats, byakhees, nightgaunts, all centaurs, disgusting molds, black molds, all G, titans, all nagas except black nagas and black naga hatchlings, all P, all Q, monkeys, apes, sasquatches, all ``@'' except the Grand Master, Master Kaen, monks and abbots, the Cyclops, Lord Surtur, Father Dagon, Mother Hydra.

Metallivores

Rock moles, (giant) shoggoths, rust monsters, xorns.

Non-eating

Killer bees, tsetse flies, queen bees, yellow jackets, black wasps, giant wasps, all b except gelatinous cubes, all e, all g, gnolls, duergars, all i, blue jellies, spotted jellies, ochre jellies, all l, all nymphs, Pegasus, all v, larvae, all x, all y, all A, all E, all F except disgusting molds and black molds, all Kops, all liches, all mummies, fire vampires, star vampires, all W, all Z except ghouls, ghasts and gugs, all golems, shadows, ghosts, shades, all ``&'', jellyfish, giant crabs, salamanders, Count Dracula.

Pets will never eat anything which will do them harm. For example, they will not eat acidic or poisonous corpses unless they have acid or poison resistance. (Pets have resistances solely by virtue of their species - unlike the hero, they do not gain resistances from eating.)

• For carnivorous pets, tripe rations and meat created with the stone to flesh spell are treats, meaty corpses and eggs are good food, and ``people food'' other than fruits, vegetables and tins is acceptable food.
• For herbivorous pets, apples and carrots are treats, vegan corpses are good food, and other fruits and vegetables are acceptable food. Bananas are treats for monkeys and apes (anything represented by a Y).
• Omnivores like everything which carnivores and herbivores like, i.e.
  • Tripe rations, meat created with stone to flesh, apples and carrots are treats.
  • Corpses and eggs are good food.
  • All other people food except tins is acceptable food.
• For metallivores, non-rustproofed iron is a treat, and anything else metallic including tins is acceptable food.
• Ghouls and ghasts will only eat old corpses (at least 50 moves old), which count as treats.
• For gelatinous cubes and Tasmanian devils, anything organic is acceptable food.

In Nethack 3.4.1, starving pets find a few more types of food acceptable. Starving carnivores will eat fruits and vegetables, but not vegan corpses. Starving herbivores will eat "people food" other than tins, but not tripe, meat, meaty corpses or eggs.

In Slash'EM only:

• Koalas can only eat eucalyptus leaves, which are a treat.
• Vampires can only feed on blood from very fresh corpses, which counts as a treat.
• Pets will not eat their own class unless they are starving, and even then it only counts as acceptable food.

Chatting With Pets

Canines (anything represented by a ``d'')

At night when there is a full moon, will howl.
If confused, fleeing, trapped, hungry, or with tameness less than 5, will whine.
If they will be hungry within 1000 moves, will bark (except for dingoes, which will make no sound in this situation).
Otherwise, will yip.

Cats (only domestic cats)

Equines (unicorns, horses and ki-rin)

Some humanoids (hobbits, dwarves, centaurs, quantum mechanics and genetic engineers, elves and drow, giants, player monsters, muggers, ninja and ronin)