Aperture Test

{
  "title": "Prism Laboratory: Aperture Test",
  "introduction": "Enter a fictional laboratory inspired by Newton’s prism experiments. Investigate light, then compare observations with historical sources.",
  "start": "study",
  "rooms": {
    "study": {
      "name": "Study",
      "description": "A notebook asks whether a prism creates colours or separates light. A storeroom lies north; a dark laboratory lies east.",
      "exits": {
        "north": "storeroom",
        "east": "laboratory"
      },
      "items": []
    },
    "storeroom": {
      "name": "Storeroom",
      "description": "A glass prism and a screen with a narrow opening rest on a shelf.",
      "exits": {
        "south": "study"
      },
      "items": [
        "prism",
        "screen"
      ]
    },
    "laboratory": {
      "name": "Laboratory",
      "description": "A shutter controls a narrow beam of sunlight. A pale wall faces the window. You can open or close the shutter, use a prism and screen, test red light, and record a result.",
      "exits": {
        "west": "study"
      },
      "items": []
    }
  },
  "actions": [
    {
      "command": "open shutter",
      "room": "laboratory",
      "requires_items": [],
      "requires_flags": [],
      "sets_flags": [
        "beam"
      ],
      "clears_flags": [],
      "text": "A narrow beam of sunlight crosses the dark room and reaches the wall."
    },
    {
      "command": "close shutter",
      "room": "laboratory",
      "requires_items": [],
      "requires_flags": [],
      "sets_flags": [],
      "clears_flags": [
        "beam",
        "spectrum",
        "red_selected",
        "red_tested",
        "recorded",
        "aperture_tested"
      ],
      "text": "The shutter closes. The beam and visible spectrum disappear. Reopen it to repeat the experiment."
    },
    {
      "command": "use prism",
      "room": "laboratory",
      "requires_items": [
        "prism"
      ],
      "requires_flags": [
        "beam"
      ],
      "sets_flags": [
        "spectrum"
      ],
      "clears_flags": [],
      "text": "You place the prism in the beam. An elongated band of colours appears on the wall. This observation alone does not settle whether the prism creates or separates colours."
    },
    {
      "command": "use screen",
      "room": "laboratory",
      "requires_items": [
        "screen"
      ],
      "requires_flags": [
        "spectrum"
      ],
      "sets_flags": [
        "red_selected"
      ],
      "clears_flags": [],
      "text": "The screen's opening isolates red light from the coloured band. You can test how that selected light behaves under further refraction."
    },
    {
      "command": "test red light",
      "room": "laboratory",
      "requires_items": [
        "prism"
      ],
      "requires_flags": [
        "red_selected",
        "beam"
      ],
      "sets_flags": [
        "red_tested"
      ],
      "clears_flags": [],
      "text": "In this simplified repeat of the experiment, selected red light is refracted again and remains red. Compare this result with Newton's account before interpreting it."
    },
    {
      "command": "record result",
      "room": "laboratory",
      "requires_items": [],
      "requires_flags": [
        "red_tested"
      ],
      "sets_flags": [
        "recorded"
      ],
      "clears_flags": [],
      "text": "Recorded: sunlight formed a spectrum, and selected red light remained red after further refraction. Complete the aperture comparison as well, then export your record to examine both procedures."
    },
    {
      "command": "narrow aperture",
      "room": "laboratory",
      "requires_items": [
        "screen"
      ],
      "requires_flags": [
        "spectrum"
      ],
      "sets_flags": [
        "aperture_tested"
      ],
      "clears_flags": [],
      "text": "In this scripted comparison, reducing the aperture narrows the image without shortening its spectrum. This simplifies the particular arrangement described in Moray’s 1672 proposals and Newton’s observations; it is not a universal prediction for every optical setup."
    }
  ],
  "goal_flags": [
    "recorded",
    "aperture_tested"
  ]
}