bitburner-src/src/Locations/ui/City.tsx

/**
 * React Component for displaying a City's UI.
 * This UI shows all of the available locations in the city, and lets the player
 * visit those locations
 */
import * as React from "react";

import { City } from "../City";
import { LocationName } from "../data/LocationNames";
import { Settings } from "../../Settings/Settings";

import { StdButton } from "../../ui/React/StdButton";

type IProps = {
  city: City;
  enterLocation: (to: LocationName) => void;
};

export class LocationCity extends React.Component<IProps, any> {
  asciiCity(): React.ReactNode {
    const LocationLetter = (location: LocationName): JSX.Element => {
      if (location)
        return (
          <span
            key={location}
            className="tooltip"
            style={{
              color: "white",
              whiteSpace: "nowrap",
              margin: "0px",
              padding: "0px",
              cursor: "pointer",
            }}
            onClick={this.props.enterLocation.bind(this, location)}
          >
            <b>X</b>
          </span>
        );
      return <span>*</span>;
    };

    const locationLettersRegex = /[A-Z]/g;
    const letterMap: any = {
      A: 0,
      B: 1,
      C: 2,
      D: 3,
      E: 4,
      F: 5,
      G: 6,
      H: 7,
      I: 8,
      J: 9,
      K: 10,
      L: 11,
      M: 12,
      N: 13,
      O: 14,
      P: 15,
      Q: 16,
      R: 17,
      S: 18,
      T: 19,
      U: 20,
      V: 21,
      W: 22,
      X: 23,
      Y: 24,
      Z: 25,
    };

    const lineElems = (s: string): JSX.Element[] => {
      const elems: any[] = [];
      const matches: any[] = [];
      let match: any;
      while ((match = locationLettersRegex.exec(s)) !== null) {
        matches.push(match);
      }
      if (matches.length === 0) {
        elems.push(s);
        return elems;
      }

      for (let i = 0; i < matches.length; i++) {
        const startI = i === 0 ? 0 : matches[i - 1].index + 1;
        const endI = matches[i].index;
        elems.push(s.slice(startI, endI));
        const locationI = letterMap[s[matches[i].index]];
        elems.push(LocationLetter(this.props.city.locations[locationI]));
      }
      elems.push(s.slice(matches[matches.length - 1].index + 1));
      return elems;
    };

    const elems: JSX.Element[] = [];
    const lines = this.props.city.asciiArt.split("\n");
    for (const i in lines) {
      elems.push(<pre key={i}>{lineElems(lines[i])}</pre>);
    }

    return <div className="noselect">{elems}</div>;
  }

  listCity(): React.ReactNode {
    const locationButtons = this.props.city.locations.map((locName) => {
      return (
        <li key={locName}>
          <StdButton onClick={this.props.enterLocation.bind(this, locName)} text={locName} />
        </li>
      );
    });

    return <ul>{locationButtons}</ul>;
  }

  render(): React.ReactNode {
    return <>{Settings.DisableASCIIArt ? this.listCity() : this.asciiCity()}</>;
  }
}