snake.yaml

version: 1
name: Snake
author: Karl Ostmo
seed: 1
description: |
  Watch the snake eat the apples
creative: false
objectives:
  - goal:
      - |
        Eat and "digest" many apples
    condition: |
      r <- robotnamed "snake";
      as r {
        appleCoreCount <- count "apple core";
        return $ appleCoreCount >= 40;
      }
robots:
  - name: base
    dir: north
    devices:
      - ADT calculator
      - branch predictor
      - clock
      - comparator
      - compass
      - dictionary
      - grabber
      - hourglass
      - hearing aid
      - keyboard
      - lambda
      - logger
      - net
      - scanner
      - strange loop
      - string
      - treads
      - wayfinder
  - name: snake
    dir: north
    system: true
    display:
      attr: green
      invisible: false
    devices:
      - rattle
    program: |
      run "scenarios/Fun/_snake/snake.sw"
  - name: spawn
    dir: north
    system: true
    display:
      invisible: true
    inventory:
      - [100, apple]
    program: |
      run "scenarios/Fun/_snake/spawn.sw"
solution: |
  noop
entities:
  - name: wayfinder
    display:
      char: 'w'
    description:
      - |
        Enables the `path` command
    properties: [known, pickable]
    capabilities: [path]
  - name: apple
    display:
      char: 'a'
      attr: red
    description:
      - |
        Tasty snack
    properties: [known, pickable]
  - name: apple core
    display:
      char: 'I'
      attr: wood
    description:
      - |
        Remains of an eaten apple
    properties: [known, pickable]
  - name: rattle
    display:
      char: 'r'
      attr: green
    description:
      - |
        Device unique to a snake
    properties: [known]
  - name: tail
    display:
      char: '@'
      attr: green
    description:
      - |
        Segment of snake's tail
    properties: [known, unwalkable]
recipes:
  - in:
      - [3, apple]
    out:
      - [1, tail]
      - [3, apple core]
    required:
      - [1, rattle]
known: []
world:
  dsl: |
    {grass}
  upperleft: [0, 0]
  palette:
    'B': [grass, erase, base]
    'S': [grass, erase, snake]
    's': [grass, erase, spawn]
    '.': [grass, erase]
  map: |
    B..
    s.S