version: 1
name: Active trapdoor
author: Karl Ostmo
description: |
  This gate closes once you have passed.

  This is an "active" trapdoor in the sense that a system robot
  continuously monitors its status and operates it.
  It is in contrast with a sokoban-style trapdoor
  that is "passive" in its operation.
creative: false
objectives:
  - goal:
      - Grab the flower.
    condition: |
      as base {has "flower"}
robots:
  - name: base
    display:
      char: 'ω'
      attr: robot
    dir: [0, 1]
    devices:
      - treads
      - 3D printer
      - ADT calculator
      - branch predictor
      - clock
      - comparator
      - counter
      - dictionary
      - grabber
      - hearing aid
      - lambda
      - logger
      - mirror
      - net
      - scanner
      - strange loop
      - string
      - workbench
    inventory:
      - [1, treads]
  - name: gate
    system: true
    dir: [0, 1]
    display:
      invisible: true
    inventory:
      - [1, boulder]
    program: |
      run "scenarios/Mechanics/_active-trapdoor/gate.sw"
solution: |
  run "scenarios/Mechanics/_active-trapdoor/solution.sw"
known: [water, boulder, flower]
seed: 0
world:
  dsl: |
    {stone, water}
  upperleft: [0, 0]
  palette:
    '@': [stone, boulder]
    '.': [grass, erase]
    G: [stone, erase, gate]
    Ω: [grass, erase, base]
    f: [grass, flower]
  map: |
    .....
    ..f..
    .....
    @@.@@
    .@.@.
    .@.@.
    .@G@.
    .@.@.
    .@.@.
    @@.@@
    .....
    ..Ω..
    .....