scenarios.js

   1 /* The person who associated a work with this deed has dedicated the
   2    work to the public domain by waiving all of his or her rights to
   3    the work worldwide under copyright law, including all related and
   4    neighboring rights, to the extent allowed by law.
   5
   6    You can copy, modify, distribute and perform the work, even for
   7    commercial purposes, all without asking permission.
   8
   9    See https://creativecommons.org/publicdomain/zero/1.0/ for details.
  10 */
  11
  12 "use strict";
  13
  14 var EVENTS = [
  15     { name: "The Greenskins are mobilized.",
  16       effect: "Greenskins gain a bonus of +1 Strength." },
  17     { name: "Big eye is watching you.",
  18       effect: "Bubbleyes gain a bonus of +1 Strength.",
  19       requires: ["bubbleyes"] },
  20     { name: "General invocation.",
  21       effect: "Demons gain a bonus of +1 Strength.",
  22       requires: ["demons"] },
  23     { name: "Stronger than ever.",
  24       effect: "Undead gain a bonus of +1 Strength.",
  25       requires: ["undead"] },
  26     { name: "Meeting with Abunakkashi.",
  27       effect: "Abunakkashii and his Offspring gain a bonus of +2 Strength.",
  28       requires: ["abunakkashii"],
  29       unique: true },
  30     { name: "The start of a legend.",
  31       effect: "Abunakkashii and his Offspring gain a bonus of +1 Strength.",
  32       requires: ["abunakkashii"],
  33       unique: true },
  34     { name: "Technological prowess.",
  35       effect: "Traps gain a bonus of +1 Strength.",
  36       requires: ["traps"] },
  37
  38     { name: "Mental combat.",
  39       effect: "Psi monsters gain a bonus of +1 Strength.", },
  40     { name: "A cry in the night.",
  41       action: "An adventurer of your choice loses 1 Mana." },
  42     { name: "Vague psi.",
  43       action: "Lose all your Mana tokens." },
  44     { name: "It's an ambush!",
  45       action: "Place a Tenacity token on each monster that does not have one." },
  46     { name: "The alarm is sounded.",
  47       action: "Place a Tenacity token on the weakest monster or monsters that do not already have one." },
  48     { name: "Flank attack.",
  49       effect: "Cards on either side corridor gain a bonus of +1 Strength.",
  50       unique: true },
  51     { name: "Battle formation.",
  52       effect: "Cards in the central corridor(s) gain a bonus of +1 Strength.",
  53       unique: true },
  54     { name: "Last bastion.",
  55       effect: "All cards gain a bonus of +1 Strength.",
  56       unique: true },
  57
  58     { name: "Destruction.",
  59       action: "All equipment and items are destroyed.",
  60       unique: true },
  61     { name: "Epic combat.",
  62       effect: "The Final Monster gains a bonus of +3 Strength.",
  63       unique: true },
  64     { name: "Red herring.",
  65       action: "Shuffle the remaining corridors together and redistribute the cards as if you were setting up the game." },
  66     { name: "The torch has gone out.",
  67       action: "The next dungeon card is placed face-down.", },
  68
  69     { name: "Anti-psi zone.",
  70       effect: "You do not gain Mana tokens for the next three creatures you defeat, even if they have a Mana icon.",
  71       unique: true },
  72
  73     { name: "Necromancy.",
  74       action: "Return a random defeated dungeon card to the lowest corridor and shuffle it." },
  75     { name: "Reanimation.",
  76       action: "Return a random defeated dungeon card to the highest corridor and shuffle it." },
  77
  78     { name: "Malediction.",
  79       action: "Discard a quest or a magic item." },
  80
  81     { name: "False brethren.",
  82       effect: "All Demons gain Immunity 5 and Immunity 7.",
  83       requires: ["demons"],
  84       unique: true },
  85
  86     { name: "Psi assault.",
  87       effect: "You cannot use ultimate powers.",
  88       lock: ["ultimates"],
  89       unique: true },
  90     { name: "Entering an anti-magic zone.",
  91       effect: "You cannot use ultimate powers.",
  92       lock: ["ultimates"],
  93       duration: 3,
  94       later: { name: "Leaving the anti-magic zone.",
  95                effect: "You may use ultimate powers again.",
  96                clear: ["ultimates"] }
  97     },
  98
  99     // Events from Sean Allen's random scenario generator.
 100     // http://boardgamegeek.com/filepage/57107/random-scenario-generator
 101     { name: "Fire from above.",
 102       effect: "Dragons gain a bonus of +1 Strength.",
 103       requires: ["dragons", "noncanonical"],
 104       unique: true },
 105     { name: "Overwhelming fear.",
 106       action: "Lose 1 extra Courage token. (The dungeon does not gain another Fear token.)",
 107       requires: ["noncanonical"],
 108       unique: true },
 109     { name: "Backs against the wall.",
 110       effect: "Any monster with a Tenacity token is also <strong>Fierce</strong>.",
 111       requires: ["noncanonical"],
 112       unique: true },
 113     { name: "The tide has turned.",
 114       effect: "All monsters have <strong>Supremacy</strong>.",
 115       requires: ["noncanonical"],
 116       unique: true },
 117     { name: "Lost.",
 118       action: "Shuffle the remaining corridors together and redistribute the cards as if you were setting up the game.",
 119       requires: ["noncanonical"] },
 120     { name: "Into the darkness.",
 121       effect: "Choose one corridor. Its cards are now always placed face-down.",
 122       requires: ["noncanonical"] },
 123
 124     // Events of my own devising.
 125     { name: "Unwanted attention.",
 126       effect: "Unique monsters gain a bonus of +1 Strength.",
 127       requires: ["noncanonical"],
 128       unique: true },
 129     { name: "Spiked the punch.",
 130       effect: "Greenskins have 1d8 Strength.",
 131       requires: ["noncanonical"],
 132       unique: true },
 133     { name: "Twisty passages.",
 134       effect: "After defeating a card, roll a die. On an odd number its replacement is placed face-down.",
 135       requires: ["noncanonical"],
 136       unique: true },
 137     { name: "Closer than you think.",
 138       action: "The dungeon gains another Fear token, and a new event occurs.",
 139       requires: ["noncanonical"],
 140       another: true, unique: true },
 141     { name: "I thought you had it.",
 142       action: "Randomly discard four of your defeated dungeon cards.",
 143       requires: ["noncanonical"] },
 144     { name: "Adamantine armor.",
 145       effect: "All monsters gain <strong>Immunity&nbsp;1</strong>.",
 146       requires: ["noncanonical"],
 147       unique: true },
 148     { name: "Normative assumptions.",
 149       effect: "Effects concerning ♂ instead concern ♀, and vice versa.",
 150       requires: ["noncanonical"],
 151       unique: true },
 152     { name: "Infighting.",
 153       effect: "Greenskins have <strong>Undead&nbsp;+1</strong>, <strong>Demons&nbsp;-1</strong>. Demons have <strong>Greenskins&nbsp;+1</strong>, <strong>Undead&nbsp;-1</strong>. Undead have <strong>Demons&nbsp;+1</strong>, <strong>Greenskins&nbsp;-1</strong>.",
 154       requires: ["noncanonical", "demons", "undead"],
 155       unique: true },
 156     { name: "New moon.",
 157       effect: "Demons have <strong>Veil of Shadow</strong>.",
 158       requires: ["noncanonical", "demons"],
 159       unique: true },
 160     { name: "Camouflage.",
 161       effect: "Greenskins have <strong>Veil of Shadow</strong>.",
 162       requires: ["noncanonical"],
 163       unique: true },
 164     { name: "Cryptic shades.",
 165       effect: "Undead have <strong>Veil of Shadow</strong>.",
 166       requires: ["noncanonical", "undead"],
 167       unique: true },
 168     { name: "Lingering smoke.",
 169       effect: "Dragons have <strong>Veil of Shadow</strong>.",
 170       requires: ["noncanonical", "dragons"],
 171       unique: true },
 172     { name: "Hypnotizing gaze.",
 173       effect: "Bubbleyes have <strong>Veil of Shadow</strong>.",
 174       requires: ["noncanonical", "bubbleyes"],
 175       unique: true },
 176     { name: "Leeched power.",
 177       action: "A random adventurer loses a Mana token.",
 178       requires: ["noncanonical"] },
 179
 180 ];
 181
 182 var NOP = [
 183     { name: "Nothing happens." },
 184     { name: "A draft blows down the hallway.",
 185       unique: true, requires: ["noncanonical"] },
 186     { name: "You sneeze.",
 187       unique: true, requires: ["noncanonical"] },
 188     { name: "There's a skittering in the distance.",
 189       unique: true,  requires: ["noncanonical"] },
 190     { name: "The torch flickers.",
 191       unique: true, requires: ["noncanonical"] },
 192     { name: "Shadows dance across the walls.",
 193       unique: true, requires: ["noncanonical"] },
 194 ];
 195
 196 var HELPFUL = [
 197     { name: "It cuts both ways.",
 198       action: "Next time you roll a 1, put a Tenacity token on all face-up monsters and roll again.",
 199       requires: ["helpful"] },
 200     { name: "Breached their defense.",
 201       action: "Gain 2 Courage tokens and the dungeon gains 1 Fear token and the Fate Chart advances; <em>or</em> gain 1 Mana token.",
 202       requires: ["helpful"], unique: true },
 203     { name: "Mana ritual.",
 204       action: "Discard up to 2 Mana tokens. For each one discarded, gain 1 Courage token.",
 205       requires: ["helpful"] }
 206 ];
 207
 208 var LOSE = { name: "Your adventuring party is defeated!" };
 209
 210 function randrange (a, b) {
 211     return a + (Math.random() * (b - a)) | 0;
 212 }
 213
 214 function generate (flags, events, nop) {
 215     var chosen = [];
 216     var i;
 217
 218     var pending = [];
 219     var locks = [];
 220     var event;
 221
 222     function pend (event, i) {
 223         while (pending[i]) ++i
 224         pending[i] = event;
 225     }
 226
 227     function canStillHappen (event) {
 228         return issubset(event.requires || [], flags)
 229             && !(event.unique && contains.call(chosen, event))
 230             && !(event.lock && intersects(event.lock || [], locks));
 231     }
 232
 233     for (i = 0; i < events; ++i) {
 234         event = pending.shift()
 235             || choice(EVENTS.filter(canStillHappen));
 236         chosen.push(event);
 237         if (event.later)
 238             pend(event.later, (Math.random() * chosen[i].duration) | 0);
 239         locks = locks.concat(event.lock || [])
 240             .filter(not(contains), event.clear || []);
 241     }
 242
 243     for (i = 0; i < pending.length; ++i)
 244         if (pending[i])
 245             chosen.push(pending[i]);
 246
 247
 248     for (i = 0; i < nop / 2; ++i) {
 249         var helpful = HELPFUL.filter(canStillHappen);
 250         var neutral = NOP.filter(canStillHappen);
 251         chosen.splice(
 252             randrange(0, chosen.length), 0,
 253             choice(helpful.length ? helpful : neutral));
 254
 255     }
 256     for (;i < nop; ++i) {
 257         var neutral = NOP.filter(canStillHappen);
 258         chosen.splice(randrange(0, chosen.length), 0, choice(neutral));
 259
 260     }
 261
 262     chosen.push(LOSE);
 263     return chosen;
 264 }
 265
 266 function toHTML (event) {
 267     return ["<span class=fate-name>" + event.name + "</span>",
 268             event.action
 269             ? "<span class=fate-action>" + event.action + "</span>"
 270             : "",
 271             event.effect
 272             ? "<span class=fate-effect>" + event.effect + "</span>"
 273             : "",
 274         ].join(" ");
 275 }
 276
 277 var THEME = ("h1 { color: hsl(XXX, 25%, 75%); }\n\
 278 h2, .button, select { border-color: hsl(XXX, 30%, 85%); }\n\
 279 \n\
 280 a:link, a:visited, a:active {\n\
 281     color: hsl(XXX, 25%, 50%);\n\
 282 }\n\
 283 \n\
 284 select, .button, tbody tr:nth-last-child(odd) {\n\
 285     background-color: hsl(XXX, 30%, 85%);\n\
 286 }\n\
 287 \n\
 288 h1,\n\
 289 select:hover, select:focus,\n\
 290 .button:hover, .button:focus {\n\
 291     border-color: hsl(XXX, 25%, 50%);\n\
 292 }");
 293
 294 function randomizeName () {
 295     var name = generateName();
 296     document.getElementById("name").textContent = name;
 297     document.title = document.title.replace(/[^-]*-/, name + " -");
 298     document.head.lastChild.textContent = THEME.replace(
 299         /XXX/g, (Math.random() * 256) | 0);
 300 }
 301
 302 var events = [];
 303 var style;
 304
 305 function generateScenario () {
 306     var parts = location.hash.slice(1).split(',');
 307     events = generate(parts, parts.shift() | 0, parts.shift() | 0);
 308     style = document.createElement("style");
 309     document.head.appendChild(style);
 310     randomizeName();
 311 }
 312
 313 function getEvents (matcher) {
 314     return EVENTS.filter(matcher);
 315 }
 316
 317 function wrapRow (row) {
 318     return "<tr><td>" + row + "</td></tr>";
 319 }
 320
 321 function iscanonical (event) {
 322     return !isnoncanonical(event);
 323 }
 324 function isnoncanonical (event) {
 325     return ~(event.requires || []).indexOf('noncanonical');
 326 }
 327
 328 function canonicalToHTML (sender) {
 329     sender.innerHTML = EVENTS.filter(iscanonical)
 330         .map(toHTML).sort().map(wrapRow).join('');
 331 }
 332
 333 function noncanonicalToHTML (sender) {
 334     sender.innerHTML = EVENTS.filter(isnoncanonical)
 335         .map(toHTML).sort().map(wrapRow).join('');
 336 }
 337
 338 function nextEvent (sender) {
 339     if (!events.length) {
 340         location.reload();
 341         return;
 342     }
 343
 344     var event = events.shift();
 345     var body = document.querySelector("#fate tbody");
 346     var fate = body.children.length + 1;
 347     var tr = document.createElement('tr');
 348     tr.innerHTML = "<td><div>" + fate + "</div></td>"
 349         + "<td><div>" + toHTML(event) + "</div></td>";
 350     body.insertBefore(tr, body.firstChild);
 351
 352     if (events.length === 0) {
 353         sender.textContent = "Try Again ▲";
 354     }
 355
 356     if (event.another)
 357         setTimeout(function () { nextEvent(sender); }, 333);
 358 }