moonlit-engine/example/game.json

{
  "meta": { "name": "skeleton-demo", "version": 1, "blurb": "Engine exercise, not a game idea: two rooms, one object you can take, one character to talk to, one branching dialogue, one intro scene." },
  "startRoom": "jetty",
  "startInventory": [],
  "walkSpeed": 80,
  "defaultVerb": "look",
  "moveVerb": "walk",

  "verbs": [
    { "id": "look",  "label": "Look",  "default": "You see nothing extraordinary." },
    { "id": "use",   "label": "Use",   "default": "That doesn't seem to work." },
    { "id": "talk",  "label": "Talk",  "default": "They're not talking." },
    { "id": "give",  "label": "Give",  "default": "They're not interested." },
    { "id": "walk",  "label": "Walk",  "default": "You can't walk there." }
  ],

  "rooms": [
    {
      "id": "jetty",
      "bg": "bg_jetty",
      "walkable": [ [[40,300],[600,300],[600,440],[40,440]] ],
      "entry": [120, 380],
      "exits": [ { "to": "tavern", "at": [580, 340], "label": "Tavern" } ],
      "onEnter": [ { "playMusic": "calypso" } ]
    },
    {
      "id": "tavern",
      "bg": "bg_tavern",
      "walkable": [ [[60,280],[580,280],[580,440],[60,440]] ],
      "entry": [120, 380],
      "exits": [ { "to": "jetty", "at": [80, 340], "label": "Back to the jetty" } ]
    }
  ],

  "objects": [
    { "id": "post", "room": "jetty", "name": "a mooring post",
      "hotspot": { "x": 480, "y": 300, "w": 40, "h": 90 } },
    { "id": "mug", "room": "jetty", "name": "a suspicious mug", "takes": true,
      "hotspot": { "x": 200, "y": 360, "w": 40, "h": 30 }, "tags": ["container"] }
  ],

  "characters": [
    { "id": "player", "room": "jetty", "x": 120, "y": 380, "sprite": "player" },
    { "id": "barkeep", "room": "tavern", "x": 400, "y": 320, "name": "the barkeep",
      "sprite": "barkeep", "tags": ["talker"] }
  ],

  "interactions": [
    { "verb": "look", "noun": "post", "response": "Sturdy. Smells of rope and regret." },
    { "verb": "look", "noun": "mug", "conditions": { "has": "mug" },
      "response": "The mug is in your pocket. It feels important." },
    { "verb": "look", "noun": "mug", "response": "A suspicious mug. Definitely suspicious." },
    { "verb": "use", "noun": "mug", "response": "You pocket the mug. Nobody objects.",
      "effects": [ { "give": "mug" }, { "setFlag": "tookMug" } ] },
    { "verb": "talk", "noun": "barkeep", "response": null,
      "effects": [ { "startDialogue": "barkeep_intro" } ] },
    { "verb": "give", "with": "mug", "noun": "barkeep",
      "conditions": { "not": { "flag": "gaveMug" } },
      "response": "\"Where'd you get that?\" The barkeep goes very quiet.",
      "effects": [ { "remove": "mug" }, { "setFlag": "gaveMug" }, { "addVar": "barkeepTrust", "value": 1 } ] },
    { "verb": "give", "with": "mug", "noun": "barkeep",
      "conditions": { "flag": "gaveMug" },
      "response": "You already handed it over." },
    { "verb": "look", "noun": "*", "tag": "talker", "response": "They look like they'd rather not be looked at." }
  ],

  "dialogues": {
    "barkeep_intro": {
      "start": "greet",
      "nodes": {
        "greet": {
          "speaker": "barkeep",
          "text": "We're closed. Also we're open. Don't ask.",
          "choices": [
            { "text": "What's in the mug?", "to": "mug" },
            { "text": "Nothing. Sorry.", "end": true }
          ]
        },
        "mug": {
          "speaker": "barkeep",
          "text": "What mug? There was never a mug.",
          "onEnter": [ { "setFlag": "heardAboutMug" } ],
          "next": "greet"
        }
      }
    }
  },

  "scenes": {
    "intro": [
      { "music": "calypso" },
      { "slide": "title", "ms": 4000 },
      { "text": "A skeleton of a game, in the style of something.", "ms": 3500 },
      { "goto": "jetty" }
    ]
  },

  "music": [
    { "id": "calypso", "file": "assets/music/moonlit_mangrove_calypso.ogg",
      "loopStartMs": 8460, "loopEndMs": 76920 }
  ],
  "sfx": [
    { "id": "click", "file": "assets/sfx/click.ogg" }
  ],
  "assets": [
    { "id": "bg_jetty", "file": "assets/img/jetty.png", "w": 640, "h": 480 },
    { "id": "bg_tavern", "file": "assets/img/tavern.png", "w": 640, "h": 480 },
    { "id": "title", "file": "assets/img/title.png", "w": 640, "h": 480 },
    { "id": "player", "file": "assets/img/player.png", "frames": { "idle": [0], "walk": [0,1,1,0] }, "framesPerRow": 4 },
    { "id": "barkeep", "file": "assets/img/barkeep.png", "frames": { "idle": [0] }, "framesPerRow": 1 }
  ]
}