caseEditor/src/core/Scene.js

import * as THREE from "three";
import Stats from "three/examples/jsm/libs/stats.module.js";
import Player from "./player/Player.js";
import BoxManager from "./box/BoxManager.js";
import { Mitt } from "./mitt.js";
import testData from "./save.json";
const stats = new Stats();

function sleep(ms) {
  return new Promise((resolve) => setTimeout(resolve, ms));
}
const saveFile = function (strData, filename) {
  var link = document.createElement("a");
  if (typeof link.download === "string") {
    document.body.appendChild(link); //Firefox requires the link to be in the body
    link.download = filename;
    link.href = strData;
    link.click();
    document.body.removeChild(link); //remove the link when done
  } else {
    location.replace(uri);
  }
};

export default class Scene extends Mitt {
  constructor(domElement) {
    super();
    this.domElement = domElement;
    this.scene = null;
    this.renderer = null;
    this.orthCamera = null;
    this.player = null;
    this.sceneType = 1;
    this.width = 0;
    this.height = 0;
    this.defaultZoom = 250;
    this.initCamPView = new THREE.Vector3();
    this.initCamRView = new THREE.Vector3();

    this.inited = false;

    this.init = () => {
      this.scene = new THREE.Scene();
      this.scene.background = new THREE.Color(0xf0f2f5);
      this.renderer = new THREE.WebGLRenderer({
        canvas: this.domElement,
        antialias: true,
        autoClear: true,
        preserveDrawingBuffer: true,
      });

      this.width = this.domElement.clientWidth;
      this.height = this.domElement.clientHeight;
      this.renderRes = window.devicePixelRatio;

      this.renderer.setSize(this.width, this.height);
      this.renderer.setPixelRatio(this.renderRes);
      console.log(this.width, this.height, this.renderRes);

      this.orthCamera = new THREE.OrthographicCamera(
        -this.width / 2,
        this.width / 2,
        this.height / 2,
        -this.height / 2,
        0.1,
        1000
      );
      this.orthCamera.zoom = this.defaultZoom;

      this.orthCamera.position.set(0, 10, 0);
      this.orthCamera.lookAt(0, 0, 0);
      // this.orthCamera.setViewOffset(this.width, this.height, 0, 0);
      this.orthCamera.updateProjectionMatrix();

      //player
      this.player = new Player(this);

      //stats
      domElement.parentNode.appendChild(stats.dom);
      stats.dom.style.pointerEvents = "none";
      stats.dom.style.left = "15%";
      stats.dom.style.display = "none";

      this.onBindEvent();

      this.inited = true;
      this.load();
      this.animate();
    };
  }

  load = (list, type, data) => {
    if (!list) return;
    // console.log("scene: ", list, type, data);
    //axesHeloer
    this.clearScene();
    this.sceneType = type;
    // const axesHelper = new THREE.AxesHelper(1);
    // this.scene.add(axesHelper);
    this.boxManager = new BoxManager(this);
    this.boxManager.load(list, type);
    //light
    this.loadLight();
    this.player.load(type, data || []);
    this.initCamPView.copy(this.orthCamera.position);
    this.initCamRView.copy(this.orthCamera.rotation);
  };

  clearScene() {
    for (var i = this.scene.children.length - 1; i >= 0; i--) {
      let obj = this.scene.children[i];
      this.scene.remove(obj);
    }
  }
  clearDrawScene() {
    for (var i = this.scene.children.length - 1; i >= 0; i--) {
      let obj = this.scene.children[i];
      if (
        String(obj.name).includes("marker_") ||
        String(obj.name).includes("line_") ||
        String(obj.name).includes("line_point_") ||
        String(obj.name).includes("circle_") ||
        String(obj.name).includes("pureText_")
      ) {
        this.scene.remove(obj);
      }
    }
  }

  deleteItemById(uuid, type) {
    for (var i = this.scene.children.length - 1; i >= 0; i--) {
      let obj = this.scene.children[i];
      if (obj.uuid === uuid) {
        console.log("deleteItemById-userData", obj.userData);
        this.player.deleteItemByType(type, obj.userData);
        this.scene.remove(obj);
      }
    }
  }
  loadLight = () => {
    const light = new THREE.AmbientLight(0xffffff, 1.5); // 柔和的白光
    this.scene.add(light);
  };

  setCamera = () => {};

  toHorizontal = () => {};

  toVertical = () => {};

  lockView(open) {
    if (open) {
      this.player.floorplanControls.enablePan = true;
    } else {
      this.player.floorplanControls.enablePan = false;
    }
  }
  setMode(mode) {
    this.player.setMode(mode);
  }
  onResize = (width, height) => {
    this.width = width !== undefined ? width : this.domElement.clientWidth;
    this.height = height !== undefined ? height : this.domElement.clientHeight;
    console.log("resize", this.width, this.height);

    (this.orthCamera.left = -this.width / 2),
      (this.orthCamera.right = this.width / 2),
      (this.orthCamera.bottom = -this.height / 2),
      (this.orthCamera.top = this.height / 2),
      this.orthCamera.updateProjectionMatrix();

    this.renderer.setSize(this.width, this.height);
  };
  render = () => {
    if (this.player) {
      this.player.update();
      this.renderer.render(this.scene, this.orthCamera);
    }
  };
  animate = () => {
    stats.begin();
    this.render();
    stats.end();
    requestAnimationFrame(this.animate);
  };

  resetCameraView() {
    this.orthCamera.zoom = this.defaultZoom;
    this.orthCamera.position.copy(this.initCamPView);
    this.orthCamera.rotation.copy(this.initCamRView);
    // this.orthCamera.updateMatrixWorld();
  }

  editing(item) {
    this.player.editing(item);
  }

  screenshot(x, index) {
    var imgData, imgNode;
    const times = 4;
    this.orthCamera.zoom = this.defaultZoom;
    this.scene.position.x = x || 0;

    this.renderer.setSize(this.width * times, this.height * times);
    this.orthCamera.aspect = this.width / this.height;

    // this.player.floorplanControls.minZoom = 1;
    // this.orthCamera.zoom = 50;
    this.orthCamera.updateProjectionMatrix();
    this.renderer.render(this.scene, this.orthCamera, null, false);

    const dataURL = this.renderer.domElement.toDataURL("image/jpeg");

    saveFile(dataURL, `${index}.jpg`);
    this.onResize(this.width, this.height);
  }

  test() {
    this.orthCamera.zoom = this.defaultZoom;
    const object = this.boxManager.model;
    let total;
    if (this.sceneType === 2) {
      total = this.boxManager.imgList.length;
    } else {
      total = this.boxManager.imgList.length / 2;
    }

    object.updateMatrixWorld();
    this.orthCamera.updateProjectionMatrix();
    const boundingBox = new THREE.Box3().setFromObject(object);

    // 计算宽度、高度和深度
    const width = boundingBox.max.x - boundingBox.min.x;
    const one = width / total;
    let slides = Math.floor(total / 3);
    console.log("slides", slides);
    if (slides > 1) {
      for (var i = 0; i <= slides; i++) {
        (function (index, that) {
          setTimeout(function () {
            const offset = -(one * 3 * index);
            console.log("Iteration:", offset);
            that.screenshot(offset, index);

            console.log(`Width: ${offset}`);
          }, index * 1000);
        })(i, this); // 传递当前迭代的索引i给setTimeout的回调函数
      }
    }
  }

  test1() {
    const object = this.boxManager.model;
    for (var i = 0; i <= object.children.length; i++) {
      console.log(object.children[i]);
      this.scene.lookAt(this.boxManager.model);
    }
  }

  onBindEvent = () => {
    //window.addEventListener('resize', this.onResize)
  };
}