90 lines
2.3 KiB
JavaScript
90 lines
2.3 KiB
JavaScript
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import DiceTerm from "./dice.mjs";
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/**
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* A type of DiceTerm used to represent flipping a two-sided coin.
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* @implements {DiceTerm}
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*/
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export default class Coin extends DiceTerm {
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constructor(termData) {
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termData.faces = 2;
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super(termData);
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}
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/** @inheritdoc */
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static DENOMINATION = "c";
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/** @inheritdoc */
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static MODIFIERS = {
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"c": "call"
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};
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/* -------------------------------------------- */
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/** @inheritdoc */
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async roll({minimize=false, maximize=false, ...options}={}) {
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const roll = {result: undefined, active: true};
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if ( minimize ) roll.result = 0;
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else if ( maximize ) roll.result = 1;
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else roll.result = await this._roll(options);
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if ( roll.result === undefined ) roll.result = this.randomFace();
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this.results.push(roll);
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return roll;
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}
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/* -------------------------------------------- */
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/** @inheritdoc */
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getResultLabel(result) {
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return {
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"0": "T",
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"1": "H"
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}[result.result];
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}
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/* -------------------------------------------- */
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/** @inheritdoc */
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getResultCSS(result) {
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return [
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this.constructor.name.toLowerCase(),
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result.result === 1 ? "heads" : "tails",
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result.success ? "success" : null,
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result.failure ? "failure" : null
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]
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}
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/* -------------------------------------------- */
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/** @override */
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mapRandomFace(randomUniform) {
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return Math.round(randomUniform);
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}
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/* -------------------------------------------- */
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/* Term Modifiers */
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/* -------------------------------------------- */
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/**
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* Call the result of the coin flip, marking any coins that matched the called target as a success
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* 3dcc1 Flip 3 coins and treat "heads" as successes
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* 2dcc0 Flip 2 coins and treat "tails" as successes
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* @param {string} modifier The matched modifier query
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*/
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call(modifier) {
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// Match the modifier
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const rgx = /c([01])/i;
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const match = modifier.match(rgx);
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if ( !match ) return false;
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let [target] = match.slice(1);
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target = parseInt(target);
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// Treat each result which matched the call as a success
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for ( let r of this.results ) {
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const match = r.result === target;
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r.count = match ? 1 : 0;
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r.success = match;
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}
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}
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}
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