Swarmer

Swarmer
Mod	Born in Chaos
Type	Hostile
Health	40 ♥×20
Attack damage	4
Armor	4
Speed	0.2
Follow range	14
Knockback resist.	0.5
Size	0.8 × 1.9 blocks
XP dropped	14
Spawns in	283 biomes
Category	Monster
ID	born_in_chaos_v1:swarmer

Swarmer is a hostile mob added by Born in Chaos. It is a melee monster that roams the Overworld and attacks players and villagers. Each hit that the Swarmer takes can summon a Corpse Fly beside it, and its death releases several Corpse Flies and Corpse Maggots, so a fight with one can quickly become a fight with many. It belongs to the vanilla minecraft:undead mob tag, so Smite-enchanted weapons deal extra damage to it.

With 40 health (20 hearts), 4 armour and 4 attack damage, the Swarmer is sturdier than most common hostiles in the pack. Its movement speed is 0.2, its follow range is 14 blocks and its knockback resistance is 0.5.

Spawning

Swarmers are natural monsters of the Overworld. The pack limits the Born in Chaos spawn modifiers to the Overworld, so Swarmers do not spawn in the Nether or the End. Each natural spawn attempt creates a single Swarmer. The spawn table below lists the biomes in which Swarmers can appear, with each entry's weight and group size.

The Swarmer uses the same placement check as the Corpse Fly of Born in Chaos rather than the standard monster rule. A spawn spot is valid only when:

• it is on the ground and dimly lit: light level 4 or less when the sky is visible above, or light level 0 when the spot is covered;
• it is in an Overworld biome, excluding the Deep Dark and Mushroom Fields biomes. Terralith biomes and the Forlorn Hollows biome from Alex's Caves are accepted;
• the Corpse Fly spawn gamerule is enabled (on by default).

Because of this check, Swarmers appear in caves, underground areas and dark surface areas at night. Born in Chaos spawn weights were halved in Fear Nightfall to reduce the share of the mob cap that the mod uses.

A Swarmer Spawn Egg (born_in_chaos_v1:swarmer_spawn_egg) is also available. It stacks to 64.

Behavior

The Swarmer uses the standard melee AI of a hostile mob:

• Attack: It melee-attacks its target when it has line of sight to it. Its attack damage is 4 (2 hearts).
• Targeting: It targets the nearest player and the nearest villager. It also retaliates against any entity that damages it.
• Idle: Without a target, it wanders at 0.8 times its movement speed and looks around at random.

Effects on hit

When a Swarmer hits a player or a mob that is not blocking, the target receives two effects:

• Hunger I for 5 seconds (100 ticks);
• Rotten Smell for 30 seconds (600 ticks).

Corpse Fly summoning

Whenever a Swarmer takes damage from any source, it has an 80% chance to summon a Corpse Fly. The roll is skipped if the Swarmer is on fire or is still within the 4-second window after its previous roll, which is the internal Block Break effect lasting 80 ticks. The Corpse Fly appears on the first free side of the Swarmer in this order: east, west, north, then south. A side is free when the two blocks at feet and head height are not solid. If no side is free, nothing is summoned.

Because the roll applies to any damage, a ranged attack summons Corpse Flies just as a melee attack does.

Death

When a Swarmer dies, it plays its death animation for 5 ticks and is then removed. At that moment it releases the following mobs around its corpse:

The death also grants 14 experience points. The summoned flies and maggots keep a fight going after the Swarmer is gone.

Drops

The Swarmer drops items from two loot pools:

• Rotten Flesh: always 2 to 3.
• Corpse Maggot or Slime Ball: one of the two is dropped, chosen with weights 100 and 80. A Corpse Maggot is 1 to 3, and a Slime Ball is 1 to 2.

Item	Amount	Conditions
Rotten Flesh	x2.0-3.0
Corpse Maggot	x1.0-3.0
Slimeball	x1.0-2.0

Tips

• Fight a Swarmer where no other mobs are near. Every death releases several summoned flies and maggots, which are much harder to deal with when they surround you.
• Use a Smite-enchanted weapon for extra damage, since the Swarmer is an undead mob.
• Each hit can summon a Corpse Fly, so a quick, decisive fight is better than a long one. Expect extra flies from every hit.
• Keep an eye on Hunger and Rotten Smell after each hit. Eat food to offset Hunger, and move away from other undead until Rotten Smell expires.
• Light up caves and dark surfaces at night. The Swarmer spawns in dim light, so lit areas keep natural spawns away.