PrimeSpawners idea

# Global spawner configuration
# Each individual spawner will override these global settings
global:

  # The general name of this spawner
  name: '&b&l%type%'

  # The visual block of this spawner
  material: MOB_SPAWNER

  # Spawner hologram options
  hologram:
    title: '&b&l%name%%type% &e(%level%)'
    subtitle: '&aSpawning in %time%!'
    playerRadius: 70

  # Players within this radius will allow the spawner to spawn
  playerRadius: 30

  # Only applies to specific spawners
  allowHoppers: true

  # Allow players to manage this spawner, otherwise it will be restricted
  # to the owner of the spawner
  allowPlayerAccess: true

  # Allows players to toggle spawn protection for items/entities
  allowSpawnProtection: true

  # Permits players to adjust the speed of the spawner or disable it
  allowSpeedToggle: true

  # Maximum players that can be assigned to a spawner
  maximumPlayers: 10

  # Spawner upgrading abilities
  upgrade:
    # Maximum level for spawners, set to 0 for no limit
    maxLevel: 15

    # Allows players to stack spawners of the same type
    allowStacking: true

  # Options related to removing/breaking this spawner
  destruction:
    # If true, the player MUST use silk touch to harvest this spawner
    requireSilkTouch: true

    # Permit spawner owners to remove the spawner in the GUI
    allowGuiRemove: true

    # If a player is in creative mode, the spawner will drop when broken
    allowCreative: true

  # General costs for spawners
  costs:
    # The cost to upgrade per level
    upgradeCost: 1500

    # If negative you can refund the player money, recommended ONLY if you prevent
    # players from removing/breaking their spawners
    destructionCost: 25

    # The price to add a player to the spawner
    addPlayer: 50

    # Which currency to charge players for: money or experience
    currency: money

  # General spawning configuration
  spawning:
    # Maximum number of entities/items to be alive at once
    maximum: 30

    # Time to spawn in seconds
    # if 0, then we'll go by the tickRate and use random percentage
    time: 60

    # Random chance to spawn
    # if 0 or 100, then the spawner will spawn when the `time` has elapsed
    baseRandom: 25

    # Amount of entities to spawn
    baseAmount: 1

    # Adjust spawning amounts
    amountPerLevel:
      # Amount of entities to spawn
      amount: 0.25

      # Either add, subtract, divide or multiply the amount
      # For example, if we subtract:
      #   Spawner Amount = Base Time + (amount * level)
      operation: add

    # Adjust the spawning time PER level
    timePerLevel:
      # Amount of time to adjust
      amount: 5

      # Either add, subtract, divide or multiply the base spawn time by this amount
      # For example, if we subtract:
      #   Spawner Time = Base Time - (amount * level)
      operation: subtract

    # Randomness multiplier PER level
    randomPerLevel:
      # The additional amount of randomness %
      amount: 5

      # Either add, subtract, divide or multiply the base randomness by this amount
      # For example, if we add:
      #   Spawner Randomness = Base Random + (amount * level)
      operation: add

  # General protection for spawners
  protection:
    # Protects against explosions
    explosion: true

    # Protects against entity damages
    entityDamage: true