71 lines
2.0 KiB
JavaScript
71 lines
2.0 KiB
JavaScript
import ParseNode from '/imports/parser/parseTree/ParseNode.js';
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import RollArrayNode from '/imports/parser/parseTree/RollArrayNode.js';
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import ErrorNode from '/imports/parser/parseTree/ErrorNode.js';
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import roll from '/imports/parser/roll.js';
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import STORAGE_LIMITS from '/imports/constants/STORAGE_LIMITS.js';
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export default class RollNode extends ParseNode {
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constructor({left, right}) {
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super(...arguments);
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this.left = left;
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this.right = right;
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}
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compile(scope, context){
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let left = this.left.compile(scope, context);
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let right = this.right.compile(scope, context);
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return new RollNode({left, right, previousNodes: [this]});
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}
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toString(){
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if (
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this.left.isNumberNode && this.left.value === 1
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){
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return `d${this.right.toString()}`;
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} else {
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return `${this.left.toString()}d${this.right.toString()}`;
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}
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}
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roll(scope, context){
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let left = this.left.reduce(scope, context);
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let right = this.right.reduce(scope, context);
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if (!left.isInteger){
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return new ErrorNode({
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node: this,
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error: 'Number of dice is not an integer',
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});
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}
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if (!right.isInteger){
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return new ErrorNode({
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node: this,
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error: 'Dice size is not an integer',
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});
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}
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let number = left.value;
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if (context.doubleRolls){
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number *= 2;
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}
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if (number > STORAGE_LIMITS.diceRollValuesCount) return new ErrorNode({
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node: this,
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error: `Can't roll more than ${STORAGE_LIMITS.diceRollValuesCount} dice at once`,
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context,
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});
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let diceSize = right.value;
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let values = roll(number, diceSize);
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if (context){
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context.storeRoll({number, diceSize, values});
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}
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return new RollArrayNode({values});
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}
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reduce(scope, context){
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return this.roll(scope, context).reduce(scope, context);
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}
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traverse(fn){
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fn(this);
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this.left.traverse(fn);
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this.right.traverse(fn);
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}
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replaceChildren(fn){
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this.left = this.left.replaceNodes(fn);
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this.right = this.right.replaceNodes(fn);
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}
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}
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