Config Explanation

BossName:
  networkId: minecraft:player
  x: 127.444900 # spawn position x
  "y": 4.000000 # spawn position y
  z: 160.134600 # spawn position z
  world: FLAT
  health: 20 # no. of half hearts
  range: 10 # no. of blocks to stay in from spawn position, if exceeded will teleport back to spawn and heal to full health
  attackDamage: 1 # no. of half hearts
  attackRate: 10 # in ticks
  attackRange: 1.5 # players will take damage within range
  speed: 1
  drops: # in the format: ID;Damage;Count;NBT hex/json;DropChance(1-100)
  - stone;0;1;;100
  - grass;0;1;;50
  - dirt;0;1;;25
  respawnTime: 100 # in ticks, if negative Boss will not respawn automatically
  skin: # applicable only to minecraft:player
    Name: ""
    Data: "" # skin hex
    CapeData: "" # skin cape hex
    GeometryName: ""
    GeometryData: "" # geometry hex/json
  heldItem: "276;0;1;" # cosmetic, in the format: ID;Damage;Count;NBT hex/json
  offhandItem: "276;0;1;" # cosmetic, in the format: ID;Damage;Count;NBT hex/json
  scale: 1
  autoAttack: false # auto attack players when they are in range
  width: 1 # before scale is applied
  height: 1 # before scale is applied
  jumpStrength: 2 # number of blocks to jump
  gravity: 0.08 # amount to subtract from motion y every tick, set to 0 for no gravity
  spreadDrops: false # whether to spread out the drops
  xpDrop: 0
  commands: # commands to execute when killed, command will not execute if player is required but boss is killed by non player damage
   - CONSOLE say Hi {PLAYER} {BOSS} # execute as console if prefixed with CONSOLE, {PLAYER} as player name, {BOSS} as boss name
   - OP say {BOSS} # temp set player as OP and execute command on behalf of player
   - me Hi
  projectiles:
    # [] for no projectile fired
  - networkId: minecraft:arrow # any entity except player, note arrow cannot be attacked due to client-side limitation
    fireRangeMin: 5 # fire projectile if target within range Min Max
    fireRangeMax: 10
    speed: 1
    attackRate: 10 # in ticks
    attackDamage: 2 # base damage, no. of half hearts, (For PM < 4.11 damage is scaled by speed just like any other projectile, damage no longer scaled in PM 4.11)
    explodeRadius: 0 # explodes whenever it hits entity/block if more than 0
    explodeDestroyBlocks: false # USE WITH CAUTION
    health: 1
    canBeAttacked: false # whether the projectile can be hurt and deflected
    despawnAfter: 0 # in ticks, 0 = never despawn
    gravity: 0.04
    canBeDeflected: true # player can change direction of projectile by attacking it, requires canBeAttacked to be true
    followNearest: false # follow the nearest player
    particle: minecraft:endrod # https://www.digminecraft.com/lists/particle_list_pe.php
    effects:
    - id: poison
      duration: 60
      amplifier: 0
      showParticles: true
      ambient: false
  armor: # will reduce damage taken, trigger enchantments etc
  - 310;0;1;0a000000 # ID;Damage;Count;NBT hex/json
  - 299;0;1;0a000000 # ID;Damage;Count;NBT hex/json
  - 300;0;1;0a000000 # ID;Damage;Count;NBT hex/json
  - 301;0;1;0a000000 # ID;Damage;Count;NBT hex/json
  hurtModifiers: # any damage cause (integer, See https://github.com/pmmp/PocketMine-MP/blob/stable/src/event/entity/EntityDamageEvent.php): multiplier
    1: 1 # entity attack: no change
    2: 0.2 # projectile: 80% damage reduction
    4: 0 # fall damage: negate all
  knockbackResistance: 0 # chance of negating knockback 0.00-1.00
  topRewards: # starts counting from 0, [] for no top rewards
  # top 1
  - - item 1;0;1; # ID;Damage;Count;NBT hex/json
    - command CONSOLE say [{BOSS}] Top Damage by {PLAYER}
  # top 2
  - - item 1;0;1; # ID;Damage;Count;NBT hex/json
    - command CONSOLE say [{BOSS}] Top 2 Damage by {PLAYER}
  minions: # minions will inherit data of respective Boss and any data specified below will override inherited data
  # minions will disappear once out of range from spawn position or if target is lost
  - name: BossName # you can use any boss, x,y,z,world will be automatically replaced with a random position within spawnRange
    spawnInterval: 100 # in ticks
    spawnRange: 5 # random position within this range from current Boss position will be selected as spawn position
    despawnAfter: 0 # optional, in ticks, 0 = never despawn
    health: 1 # optional override
    speed: 2 # optional override
    gravity: 0 # optional override
    drops: [] # recommended override, if not minion will drop Boss drops
    commands: [] # recommended override, if not minion will execute same commands in Boss
    topRewards: [] # recommended override, if not minion will give same rewards as Boss
    minions: [] # recommended override to prevent minion spawning minion disaster
    onSpawn: [] # recommended override
  displayHealth: "" # As of 1.19, this only works for minecraft:player. {HEALTH} => health value , {MAX_HEALTH} => maxHealth , {BAR} => health bar, example: "{HEALTH}/{MAX_HEALTH} {BAR}"
  movesByJumping: false # if true, boss will jump (jumpStrength) when it moves (like slime), configuration of hurt modifier is recommended to prevent/reduce fall damage
  onSpawn: # randomly selects 1 when Boss spawns
  - message {BOSS} spawned at {X} {Y} {Z} {WORLD}
  - command say {BOSS} spawned at {X} {Y} {Z} {WORLD}