420 lines
14 KiB
TypeScript
420 lines
14 KiB
TypeScript
import autobind from 'autobind-decorator';
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import * as seedrandom from 'seedrandom';
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import Chart from 'chart.js';
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import * as tinycolor from 'tinycolor2';
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import { Variable, PageVar, envVarsDef, funcDefs, Block, isFnBlock } from '.';
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import { version } from '../../config';
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import { AiScript, utils, parse, values } from '@syuilo/aiscript';
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import { createAiScriptEnv } from '../create-aiscript-env';
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// https://stackoverflow.com/questions/38493564/chart-area-background-color-chartjs
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Chart.pluginService.register({
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beforeDraw: function (chart, easing) {
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if (chart.config.options.chartArea && chart.config.options.chartArea.backgroundColor) {
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var ctx = chart.chart.ctx;
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ctx.save();
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ctx.fillStyle = chart.config.options.chartArea.backgroundColor;
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ctx.fillRect(0, 0, chart.chart.width, chart.chart.height);
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ctx.restore();
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}
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}
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});
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type Fn = {
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slots: string[];
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exec: (args: Record<string, any>) => ReturnType<ASEvaluator['evaluate']>;
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};
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/**
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* AoiScript evaluator
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*/
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export class ASEvaluator {
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private variables: Variable[];
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private pageVars: PageVar[];
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private envVars: Record<keyof typeof envVarsDef, any>;
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public aiscript?: AiScript;
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private pageVarUpdatedCallback;
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private canvases: Record<string, HTMLCanvasElement> = {};
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private opts: {
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randomSeed: string; visitor?: any; page?: any; url?: string;
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enableAiScript: boolean;
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};
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constructor(vm: any, variables: Variable[], pageVars: PageVar[], opts: ASEvaluator['opts']) {
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this.variables = variables;
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this.pageVars = pageVars;
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this.opts = opts;
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if (this.opts.enableAiScript) {
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this.aiscript = new AiScript({ ...createAiScriptEnv(vm, {
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storageKey: 'pages:' + opts.page.id
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}), ...{
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'MkPages:updated': values.FN_NATIVE(([callback]) => {
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this.pageVarUpdatedCallback = callback;
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}),
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'MkPages:get_canvas': values.FN_NATIVE(([id]) => {
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utils.assertString(id);
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const canvas = this.canvases[id.value];
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const ctx = canvas.getContext('2d');
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return values.OBJ(new Map([
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['clear_rect', values.FN_NATIVE(([x, y, width, height]) => { ctx.clearRect(x.value, y.value, width.value, height.value) })],
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['fill_rect', values.FN_NATIVE(([x, y, width, height]) => { ctx.fillRect(x.value, y.value, width.value, height.value) })],
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['stroke_rect', values.FN_NATIVE(([x, y, width, height]) => { ctx.strokeRect(x.value, y.value, width.value, height.value) })],
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['fill_text', values.FN_NATIVE(([text, x, y, width]) => { ctx.fillText(text.value, x.value, y.value, width ? width.value : undefined) })],
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['stroke_text', values.FN_NATIVE(([text, x, y, width]) => { ctx.strokeText(text.value, x.value, y.value, width ? width.value : undefined) })],
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['set_line_width', values.FN_NATIVE(([width]) => { ctx.lineWidth = width.value })],
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['set_font', values.FN_NATIVE(([font]) => { ctx.font = font.value })],
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['set_fill_style', values.FN_NATIVE(([style]) => { ctx.fillStyle = style.value })],
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['set_stroke_style', values.FN_NATIVE(([style]) => { ctx.strokeStyle = style.value })],
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['begin_path', values.FN_NATIVE(() => { ctx.beginPath() })],
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['close_path', values.FN_NATIVE(() => { ctx.closePath() })],
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['move_to', values.FN_NATIVE(([x, y]) => { ctx.moveTo(x.value, y.value) })],
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['line_to', values.FN_NATIVE(([x, y]) => { ctx.lineTo(x.value, y.value) })],
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['arc', values.FN_NATIVE(([x, y, radius, startAngle, endAngle]) => { ctx.arc(x.value, y.value, radius.value, startAngle.value, endAngle.value) })],
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['rect', values.FN_NATIVE(([x, y, width, height]) => { ctx.rect(x.value, y.value, width.value, height.value) })],
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['fill', values.FN_NATIVE(() => { ctx.fill() })],
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['stroke', values.FN_NATIVE(() => { ctx.stroke() })],
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]));
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}),
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'MkPages:chart': values.FN_NATIVE(([id, opts]) => {
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utils.assertString(id);
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utils.assertObject(opts);
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const canvas = this.canvases[id.value];
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const color = getComputedStyle(document.documentElement).getPropertyValue('--accent');
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const chart = new Chart(canvas, {
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type: opts.value.get('type').value,
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data: {
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labels: opts.value.get('labels').value.map(x => x.value),
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datasets: opts.value.get('datasets').value.map(x => ({
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label: x.value.has('label') ? x.value.get('label').value : '',
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data: x.value.get('data').value.map(x => x.value),
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pointRadius: 0,
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lineTension: 0,
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borderWidth: 2,
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borderColor: x.value.has('color') ? x.value.get('color') : color,
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backgroundColor: tinycolor(x.value.has('color') ? x.value.get('color') : color).setAlpha(0.1).toRgbString(),
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}))
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},
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options: {
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responsive: false,
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title: {
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display: opts.value.has('title'),
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text: opts.value.has('title') ? opts.value.get('title').value : ''
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},
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layout: {
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padding: {
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left: 0,
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right: 0,
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top: 8,
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bottom: 0
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}
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},
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legend: {
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display: opts.value.get('datasets').value.filter(x => x.value.has('label') && x.value.get('label').value).length === 0 ? false : true,
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position: 'bottom',
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labels: {
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boxWidth: 16,
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}
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},
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tooltips: {
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enabled: false,
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},
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chartArea: {
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backgroundColor: '#fff'
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},
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...(opts.value.get('type').value === 'rader' ? {
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scale: {
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ticks: {
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beginAtZero: opts.value.has('begin_at_zero') ? opts.value.get('begin_at_zero') : false
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}
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}
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} : {
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scales: {
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yAxes: [{
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ticks: {
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beginAtZero: opts.value.has('begin_at_zero') ? opts.value.get('begin_at_zero') : false
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}
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}]
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}
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})
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}
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});
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}),
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}}, {
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in: (q) => {
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return new Promise(ok => {
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vm.$root.dialog({
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title: q,
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input: {}
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}).then(({ canceled, result: a }) => {
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ok(a);
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});
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});
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},
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out: (value) => {
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console.log(value);
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},
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log: (type, params) => {
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},
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});
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}
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const date = new Date();
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this.envVars = {
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AI: 'kawaii',
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VERSION: version,
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URL: opts.page ? `${opts.url}/@${opts.page.user.username}/pages/${opts.page.name}` : '',
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LOGIN: opts.visitor != null,
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NAME: opts.visitor ? opts.visitor.name || opts.visitor.username : '',
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USERNAME: opts.visitor ? opts.visitor.username : '',
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USERID: opts.visitor ? opts.visitor.id : '',
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NOTES_COUNT: opts.visitor ? opts.visitor.notesCount : 0,
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FOLLOWERS_COUNT: opts.visitor ? opts.visitor.followersCount : 0,
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FOLLOWING_COUNT: opts.visitor ? opts.visitor.followingCount : 0,
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IS_CAT: opts.visitor ? opts.visitor.isCat : false,
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SEED: opts.randomSeed ? opts.randomSeed : '',
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YMD: `${date.getFullYear()}/${date.getMonth() + 1}/${date.getDate()}`,
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AISCRIPT_DISABLED: !this.opts.enableAiScript,
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NULL: null
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};
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}
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public registerCanvas(id: string, canvas: any) {
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this.canvases[id] = canvas;
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}
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@autobind
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public updatePageVar(name: string, value: any) {
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const pageVar = this.pageVars.find(v => v.name === name);
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if (pageVar !== undefined) {
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pageVar.value = value;
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if (this.pageVarUpdatedCallback) {
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if (this.aiscript) this.aiscript.execFn(this.pageVarUpdatedCallback, [values.STR(name), utils.jsToVal(value)]);
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}
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} else {
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throw new AoiScriptError(`No such page var '${name}'`);
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}
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}
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@autobind
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public updateRandomSeed(seed: string) {
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this.opts.randomSeed = seed;
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this.envVars.SEED = seed;
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}
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@autobind
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private interpolate(str: string, scope: Scope) {
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return str.replace(/{(.+?)}/g, match => {
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const v = scope.getState(match.slice(1, -1).trim());
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return v == null ? 'NULL' : v.toString();
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});
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}
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@autobind
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public evaluateVars(): Record<string, any> {
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const values: Record<string, any> = {};
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for (const [k, v] of Object.entries(this.envVars)) {
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values[k] = v;
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}
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for (const v of this.pageVars) {
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values[v.name] = v.value;
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}
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for (const v of this.variables) {
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values[v.name] = this.evaluate(v, new Scope([values]));
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}
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return values;
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}
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@autobind
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private evaluate(block: Block, scope: Scope): any {
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if (block.type === null) {
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return null;
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}
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if (block.type === 'number') {
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return parseInt(block.value, 10);
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}
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if (block.type === 'text' || block.type === 'multiLineText') {
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return this.interpolate(block.value || '', scope);
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}
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if (block.type === 'textList') {
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return this.interpolate(block.value || '', scope).trim().split('\n');
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}
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if (block.type === 'ref') {
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return scope.getState(block.value);
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}
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if (block.type === 'aiScriptVar') {
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if (this.aiscript) {
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try {
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return utils.valToJs(this.aiscript.scope.get(block.value));
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} catch (e) {
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return null;
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}
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} else {
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return null;
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}
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}
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if (isFnBlock(block)) { // ユーザー関数定義
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return {
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slots: block.value.slots.map(x => x.name),
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exec: (slotArg: Record<string, any>) => {
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return this.evaluate(block.value.expression, scope.createChildScope(slotArg, block.id));
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}
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} as Fn;
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}
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if (block.type.startsWith('fn:')) { // ユーザー関数呼び出し
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const fnName = block.type.split(':')[1];
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const fn = scope.getState(fnName);
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const args = {} as Record<string, any>;
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for (let i = 0; i < fn.slots.length; i++) {
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const name = fn.slots[i];
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args[name] = this.evaluate(block.args[i], scope);
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}
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return fn.exec(args);
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}
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if (block.args === undefined) return null;
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const date = new Date();
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const day = `${this.opts.visitor ? this.opts.visitor.id : ''} ${date.getFullYear()}/${date.getMonth() + 1}/${date.getDate()}`;
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const funcs: { [p in keyof typeof funcDefs]: Function } = {
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not: (a: boolean) => !a,
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or: (a: boolean, b: boolean) => a || b,
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and: (a: boolean, b: boolean) => a && b,
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eq: (a: any, b: any) => a === b,
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notEq: (a: any, b: any) => a !== b,
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gt: (a: number, b: number) => a > b,
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lt: (a: number, b: number) => a < b,
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gtEq: (a: number, b: number) => a >= b,
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ltEq: (a: number, b: number) => a <= b,
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if: (bool: boolean, a: any, b: any) => bool ? a : b,
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for: (times: number, fn: Fn) => {
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const result = [];
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for (let i = 0; i < times; i++) {
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result.push(fn.exec({
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[fn.slots[0]]: i + 1
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}));
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}
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return result;
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},
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add: (a: number, b: number) => a + b,
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subtract: (a: number, b: number) => a - b,
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multiply: (a: number, b: number) => a * b,
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divide: (a: number, b: number) => a / b,
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mod: (a: number, b: number) => a % b,
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round: (a: number) => Math.round(a),
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strLen: (a: string) => a.length,
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strPick: (a: string, b: number) => a[b - 1],
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strReplace: (a: string, b: string, c: string) => a.split(b).join(c),
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strReverse: (a: string) => a.split('').reverse().join(''),
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join: (texts: string[], separator: string) => texts.join(separator || ''),
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stringToNumber: (a: string) => parseInt(a),
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numberToString: (a: number) => a.toString(),
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splitStrByLine: (a: string) => a.split('\n'),
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pick: (list: any[], i: number) => list[i - 1],
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listLen: (list: any[]) => list.length,
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random: (probability: number) => Math.floor(seedrandom(`${this.opts.randomSeed}:${block.id}`)() * 100) < probability,
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rannum: (min: number, max: number) => min + Math.floor(seedrandom(`${this.opts.randomSeed}:${block.id}`)() * (max - min + 1)),
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randomPick: (list: any[]) => list[Math.floor(seedrandom(`${this.opts.randomSeed}:${block.id}`)() * list.length)],
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dailyRandom: (probability: number) => Math.floor(seedrandom(`${day}:${block.id}`)() * 100) < probability,
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dailyRannum: (min: number, max: number) => min + Math.floor(seedrandom(`${day}:${block.id}`)() * (max - min + 1)),
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dailyRandomPick: (list: any[]) => list[Math.floor(seedrandom(`${day}:${block.id}`)() * list.length)],
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seedRandom: (seed: any, probability: number) => Math.floor(seedrandom(seed)() * 100) < probability,
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seedRannum: (seed: any, min: number, max: number) => min + Math.floor(seedrandom(seed)() * (max - min + 1)),
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seedRandomPick: (seed: any, list: any[]) => list[Math.floor(seedrandom(seed)() * list.length)],
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DRPWPM: (list: string[]) => {
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const xs = [];
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let totalFactor = 0;
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for (const x of list) {
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const parts = x.split(' ');
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const factor = parseInt(parts.pop()!, 10);
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const text = parts.join(' ');
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totalFactor += factor;
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xs.push({ factor, text });
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}
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const r = seedrandom(`${day}:${block.id}`)() * totalFactor;
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let stackedFactor = 0;
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for (const x of xs) {
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if (r >= stackedFactor && r <= stackedFactor + x.factor) {
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return x.text;
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} else {
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stackedFactor += x.factor;
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}
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}
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return xs[0].text;
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},
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};
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const fnName = block.type;
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const fn = (funcs as any)[fnName];
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if (fn == null) {
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throw new AoiScriptError(`No such function '${fnName}'`);
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} else {
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return fn(...block.args.map(x => this.evaluate(x, scope)));
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}
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}
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}
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class AoiScriptError extends Error {
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public info?: any;
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constructor(message: string, info?: any) {
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super(message);
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this.info = info;
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// Maintains proper stack trace for where our error was thrown (only available on V8)
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if (Error.captureStackTrace) {
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Error.captureStackTrace(this, AoiScriptError);
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}
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}
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}
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class Scope {
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private layerdStates: Record<string, any>[];
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public name: string;
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constructor(layerdStates: Scope['layerdStates'], name?: Scope['name']) {
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this.layerdStates = layerdStates;
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this.name = name || 'anonymous';
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}
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@autobind
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public createChildScope(states: Record<string, any>, name?: Scope['name']): Scope {
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const layer = [states, ...this.layerdStates];
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return new Scope(layer, name);
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}
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/**
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* 指定した名前の変数の値を取得します
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* @param name 変数名
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*/
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@autobind
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public getState(name: string): any {
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for (const later of this.layerdStates) {
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const state = later[name];
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if (state !== undefined) {
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return state;
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}
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}
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throw new AoiScriptError(
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`No such variable '${name}' in scope '${this.name}'`, {
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scope: this.layerdStates
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});
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}
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}
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