rules:
  # hunger logic
  - match:
      type: actor
      hunger: full
    chance: 0.2
    set:
      hunger: hungry

  # hunger initialization
  - rule: |
      "hunger" not in attributes
    set:
      hunger: hungry

  # cooking logic
  - match:
      type: item
      edible: raw
    chance: 0.1
    set:
      edible: cooked
  - match:
      type: item
      edible: cooked
    chance: 0.1
    set:
      edible: rotten