mirror of
https://github.com/Foundryborne/daggerheart.git
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93 lines
No EOL
2.8 KiB
JavaScript
93 lines
No EOL
2.8 KiB
JavaScript
/**
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* @typedef {foundry.data.types.StringFieldOptions} StringFieldOptions
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* @typedef {foundry.data.types.DataFieldContext} DataFieldContext
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*/
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/**
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* @typedef _FormulaFieldOptions
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* @property {boolean} [deterministic] - Is this formula not allowed to have dice values?
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*/
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/**
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* @typedef {StringFieldOptions & _FormulaFieldOptions} FormulaFieldOptions
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*/
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/**
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* Special case StringField which represents a formula.
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*/
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export default class FormulaField extends foundry.data.fields.StringField {
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/**
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* @param {FormulaFieldOptions} [options] - Options which configure the behavior of the field
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* @param {foundry.data.types.DataFieldContext} [context] - Additional context which describes the field
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*/
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constructor(options, context) {
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super(options, context);
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}
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/** @inheritDoc */
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static get _defaults() {
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return foundry.utils.mergeObject(super._defaults, {
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deterministic: false
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});
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}
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/* -------------------------------------------- */
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/** @inheritDoc */
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_validateType(value) {
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const roll = new Roll(value.replace(/@([a-z.0-9_-]+)/gi, "1"));
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roll.evaluateSync({ strict: false });
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if (this.options.deterministic && !roll.isDeterministic) throw new Error(`must not contain dice terms: ${value}`);
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super._validateType(value);
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}
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/* -------------------------------------------- */
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/* Active Effect Integration */
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/* -------------------------------------------- */
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/** @override */
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_castChangeDelta(delta) {
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return this._cast(delta).trim();
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}
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/* -------------------------------------------- */
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/** @override */
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_applyChangeAdd(value, delta, model, change) {
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if (!value) return delta;
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const operator = delta.startsWith("-") ? "-" : "+";
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delta = delta.replace(/^[+-]/, "").trim();
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return `${value} ${operator} ${delta}`;
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}
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/* -------------------------------------------- */
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/** @override */
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_applyChangeMultiply(value, delta, model, change) {
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if (!value) return delta;
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const terms = new Roll(value).terms;
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if (terms.length > 1) return `(${value}) * ${delta}`;
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return `${value} * ${delta}`;
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}
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/* -------------------------------------------- */
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/** @override */
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_applyChangeUpgrade(value, delta, model, change) {
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if (!value) return delta;
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const terms = new Roll(value).terms;
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if ((terms.length === 1) && (terms[0].fn === "max")) return value.replace(/\)$/, `, ${delta})`);
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return `max(${value}, ${delta})`;
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}
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/* -------------------------------------------- */
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/** @override */
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_applyChangeDowngrade(value, delta, model, change) {
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if (!value) return delta;
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const terms = new Roll(value).terms;
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if ((terms.length === 1) && (terms[0].fn === "min")) return value.replace(/\)$/, `, ${delta})`);
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return `min(${value}, ${delta})`;
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}
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} |