795-prerequisite-or.yaml

version: 1
name: |
  Prerequisite objectives: OR
description: |
  Complete an objective with a prerequisite of either of two other objectives.
objectives:
  - goal:
      - Achieve one of two other objectives
    condition: |
      return true;
    prerequisite:
      previewable: true
      logic:
        or:
          - id: have_furnace
          - id: have_gear
  - id: have_furnace
    goal:
      - Make a "furnace".
    condition: |
      as base {has "furnace"};
    optional: true
  - id: have_gear
    goal:
      - Make a "wooden gear".
    condition: |
      as base {has "wooden gear"};
    optional: true
solution: |
  make "wooden gear"
robots:
  - name: base
    display:
      char: 'Ω'
      attr: robot
    dir: [0, 1]
    devices:
      - workbench
      - grabber
    inventory:
      - [2, board]
      - [5, rock]
world:
  default: [blank]
  palette:
    'x': [grass, flower, base]
  upperleft: [0, 0]
  map: |
    x