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feat: support random function range arguments #657

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feat: support random function range arguments #657

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19 changes: 17 additions & 2 deletions packages/webgal/src/Core/gameScripts/setVar.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -8,7 +8,10 @@ import { setScriptManagedGlobalVar } from '@/store/userDataReducer';
import { ActionCreatorWithPayload } from '@reduxjs/toolkit';
import { ISetGameVar } from '@/store/stageInterface';
import { dumpToStorageFast } from '@/Core/controller/storage/storageController';
import expression from 'angular-expressions';
import get from 'lodash/get';
import random from 'lodash/random';

/**
* 设置变量
* @param sentence
Expand All @@ -30,8 +33,8 @@ export const setVar = (sentence: ISentence): IPerform => {
if (sentence.content.match(/\s*=\s*/)) {
const key = sentence.content.split(/\s*=\s*/)[0];
const valExp = sentence.content.split(/\s*=\s*/)[1];
if (valExp === 'random()') {
webgalStore.dispatch(targetReducerFunction({ key, value: Math.random() }));
if (/^\s*[a-zA-Z_$][\w$]*\s*\(.*\)\s*$/.test(valExp)) {
webgalStore.dispatch(targetReducerFunction({ key, value: EvaluateExpression(valExp) }));
} else if (valExp.match(/[+\-*\/()]/)) {
// 如果包含加减乘除号，则运算
// 先取出运算表达式中的变量
Expand Down Expand Up @@ -92,6 +95,18 @@ export const setVar = (sentence: ISentence): IPerform => {

type BaseVal = string | number | boolean | undefined;

/**
* 执行函数
*/
function EvaluateExpression(val: string) {
const instance = expression.compile(val);
return instance({
random: (...args: any[]) => {
return args.length ? random(...args) : Math.random();
},
});
}

/**
* 取不到时返回 undefined
*/
Expand Down