traffic-laser/src/graphic/Geometry/Road.js

import VectorType from "../enum/VectorType.js";
import Geometry from "./Geometry.js";
import Settings from "../Settings";
import Constant from "../Constant";

export default class Road extends Geometry {
  constructor(startId, endId, vectorId) {
    super();
    this.startId = startId;
    this.endId = endId;
    this.leftEdgeId = null;
    this.rightEdgeId = null;
    this.leftLanes = []; //二维数组。第一维表示第几个车道，第二维是一组点
    this.rightLanes = [];
    this.singleLanes = []; //单向车道
    //道路中间隔离栏 ，起点和终点与startId和endId方向一致。但是坐标有区别。因为隔离栏要比start-end短一些
    //单向车道没有中间栏
    this.midDivide = {
      leftMidDivide: {},
      rightMidDivide: {},
      midDivideWidth: Settings.roadMidDivideWidth,
    };

    this.leftDrivewayCount = Settings.roadLeftDrivewayCount; //左边的车道个数
    this.rightDrivewayCount = Settings.roadRightDrivewayCount; //右边的车道个数
    this.geoType = VectorType.Road;
    this.leftWidth = Settings.leftRoadWidth;
    this.rightWidth = Settings.rightRoadWidth;
    this.singleRoadWidth = Settings.singleRoadWidth;
    this.singleRoadDrivewayCount = Settings.singleRoadDrivewayCount;
    this.way = Settings.wayType;
    this.setId(vectorId);
  }

  setWidth(value, dir) {
    if (this.way == Constant.twoWay) {
      if (dir == "left") {
        this.leftWidth = value;
      } else if (dir == "right") {
        this.rightWidth = value;
      }
    } else if (this.way == Constant.oneWay) {
      this.singleRoadWidth = value;
    }
  }

  getOtherPointId(pointId) {
    if (this.startId == pointId) {
      return this.endId;
    } else if (this.endId == pointId) {
      return this.startId;
    } else {
      return null;
    }
  }

  getPointId(dir) {
    if (dir == "start") {
      return this.startId;
    } else {
      return this.endId;
    }
  }

  addLeftDrivewayCount() {
    ++this.leftDrivewayCount;
  }

  subtractLeftDrivewayCount() {
    --this.leftDrivewayCount;
    if (this.leftDrivewayCount < 0) {
      this.leftDrivewayCount = 0;
    }
  }

  addRightDrivewayCount() {
    ++this.rightDrivewayCount;
  }

  subtractRightDrivewayCount() {
    ++this.rightDrivewayCount;
    if (this.rightDrivewayCount < 0) {
      this.rightDrivewayCount = 0;
    }
  }

  setWay(value) {
    this.way = value;
  }

  getLanesCount(dir) {
    if (this.way == Constant.oneWay) {
      return this.singleRoadDrivewayCount;
    } else if (this.way == Constant.twoWay) {
      if (dir == "left") {
        return this.leftDrivewayCount;
      } else {
        return this.rightDrivewayCount;
      }
    }
  }
}