Disposition
Monsters in Crawl have one of four dispositions, or attitudes, towards the player:
- hostile (
ATT_HOSTILEin the source code), - neutral (
ATT_NEUTRAL), - peaceful (
ATT_GOOD_NEUTRAL), - allied (
ATT_FRIENDLY).
Contents
[hide]Hostile
Hostile monsters will actively pursue and try to kill the player, be it through spells, abilities, melee, ranged weapons, or whatever means they have coded. Hostile monsters will not generally attack each other, although monsters will destroy plants in an attempt to reach the player, and some monsters are rather indiscriminate with multiple-target spells.
By default, every monster in the game is hostile, though a few means can change this. Even monsters with no means of harming the player, like plants, are considered "hostile".
Neutral
Neutral (indifferent) monsters are those with no particular desire to kill the player. They will not pursue, and will not use ranged attacks. However, they will still attack in melee anything that gets in their way: the player, other monsters, plants, etc. You must use a dedicated attack command (Ctrl-direction or v) in order to attack these monsters, potentially getting a stab off and definitely making them hostile.
Monsters pacified by Elyvilon are neutral, attempting to find the nearest staircase and leave the level. Monsters produced by Lugonu's Corruption ability will also be neutral, and there are a few pregenerated vaults that contain neutral monsters (though are quite rare).
Frenzied
Frenzied is the result of the frenzy status. Frenzied monsters will actively attack the closest thing in sight, whether friend or foe.
Peaceful
Peaceful monsters are friendly toward the player, but are not allies. They will not attack the player, and attempting to move onto their square simply displaces them. They will roam around, attempting to kill hostile monsters, using all their abilities in doing so. They cannot be given commands to attack a specific monster, and will not follow the player.
Peaceful is a fairly rare trait. Fedhas turns all plants peaceful. Upon killing Kirke, her pigs will turn into peaceful humans. Some peaceful monsters are generated in vaults.
Allied
Allied monsters are most akin to "pets" in other roguelikes. They will follow the player, attacking his or her enemies at will, without much regard for their own safety. They can be given a few simple commands: "Guard the Area!" (stay close + attack enemies in range), "Follow me!", "Retreat!", "Attack [a specific target]!", and "Stop attacking." It is not possible to give commands to a single ally - you give them to all allies in LOS or none.
Permanent allies are incredibly sparse, and are only available from gods (including: Beogh orcs, the Hepliaklqana ancestor, and Yredelemnul's bound soul). Temporary allies, however, are quite common - they can be created by Summonings and Necromancy spells, while a wand of charming will temporarily convert one into your side.
Whenever an allied monster kills an enemy, you gain 100% of the XP, as if you killed the enemy yourself.
Limitations
Most (but not all) allied monsters are subject to the following limitations:
- Allies cannot attack monsters that are outside your line of sight, nor can they attack when they themselves are outside your line of sight.
- Allies cannot follow you through stairs.
Charmed monsters and bribed monsters are not subject to either of these restrictions, though bribed monsters can't leave their home branch.
Permanent allies (Beogh orcs, Hepliaklqana's ancestor and Yredelemnul's bound soul) can follow you through stairs, but not attack from outside LOS.
Fellow Slime
Jiyva worshippers will find all slimes turned friendly. This is technically a separate attitude (ATT_FELLOW_SLIME), with some changes to their AI. Unlike allied creatures, they will not follow you and are unable to be commanded. Unlike peaceful creatures, they do not actively hunt enemies, instead seeking out enemies that attack you.
