ability-schema.yaml

---
definitions:
  effect:
    type: object
    properties:
      id:
        oneOf:
        - type: integer
        - type: string
      name:
        type: string
      description:
        type: string
      effect:
        oneOf:
        - type: object
          properties:
            ref:
              type: string
            operator:
              type: string
              enum:
              - add
              - subtract
              - divide
              - multiply
            value:
              oneOf:
              - type: integer
              - type: string
                pattern: "^%\\d*$"
              - type: string
                pattern: "^\\d+d\\d+$"
          required:
          - ref
          - operator
          - value
        - type: object
          properties:
            ref:
              type: string
            operator:
              type: string
              enum:
              - add
              - subtract
              - divide
              - multiply
            expression:
              type: string
          required:
          - ref
          - operator
          - expression
    required:
    - effect
type: object
properties:
  id:
    oneOf:
    - type: integer
    - type: string
  name:
    type: string
  description:
    type: string
  target:
    type: string
    enum:
    - self
    - aoe
    - entity
  cost:
    type: object
    properties:
      type:
        type: string
        enum:
        - ap
      format:
        type: string
        enum:
        - exactly
        - upto
      value:
        type: integer
    required:
    - type
    - value
  duration:
    type: integer
  effect:
    "$ref": "#/definitions/effect"
  children:
    type: array
    items:
      ref: "#"
required:
- target
- effect

character-schema.yaml

---
"$schema": http://json-schema.org/draft-07/schema#
type: object
properties:
  id:
    type: number
    exclusiveMinimum: 0
  name:
    type: string
  level:
    type: integer
    minimum: 0
  morality:
    type: string
    enum:
    - good
    - neutral
    - evil
  lawfulness:
    type: string
    enum:
    - lawful
    - neutral
    - chaotic
  xp:
    type: integer
    minimum: 0
  items:
    type: array
    items:
      type: object
      properties:
        name:
          type: string
        description:
          type: string
        count:
          type: integer
          minimum: 1
      required:
      - name
required:
- id
- name
- level
- morality
- lawfulness
- xp

life-steal.yaml

---
id: live-steal
name: Life Steal
description: Do 1d8 damage to a target and receive damage done as health
target: entity
cost:
  type: ap
  format: upto
  value: 2
effect:
  effect:
    ref: "#/health"
    operator: subtract
    value: 2d10
children:
- target: self
  effect:
    ref: "#/health"
    operator: add
    value: "%"