58 lines
1.5 KiB
JavaScript
58 lines
1.5 KiB
JavaScript
import ParseNode from '/imports/parser/parseTree/ParseNode.js';
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import ArrayNode from '/imports/parser/parseTree/ArrayNode.js';
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import ErrorNode from '/imports/parser/parseTree/ErrorNode.js';
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export default class RollNode extends ParseNode {
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constructor({left, right}) {
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super();
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this.left = left;
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this.right = right;
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}
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compile(){
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let left = this.left.compile();
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let right = this.right.compile();
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return new RollNode({left, right});
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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(){
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let left = this.left.reduce();
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let right = this.right.reduce();
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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 (number > 100) return new ErrorNode({
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node: this,
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error: 'Can\'t roll more than 100 dice at once'
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});
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let diceSize = right.value;
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let randomSrc = DDP.randomStream('diceRoller');
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let rolls = [];
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for (let i = 0; i < number; i++){
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let roll = ~~(randomSrc.fraction() * diceSize) + 1
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rolls.push(roll);
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}
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return new ArrayNode({values: rolls});
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}
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reduce(){
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this.roll().reduce();
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}
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}
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