@eva/react-eva/lib/misc/instance.js

React EVA是一个让开发同学能够在React技术体系下，利用EVA JS的游戏研发能力，开发动画、游戏类场景的框架。它可以让开发同学用熟悉的JSX和Hooks语法编写动画、游戏场景的代码。

"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

exports.__esModule = true;
exports["default"] = exports.EvaInstance = void 0;

var _extends2 = _interopRequireDefault(require("@babel/runtime/helpers/extends"));

var _createClass2 = _interopRequireDefault(require("@babel/runtime/helpers/createClass"));

var EvaInstance = /*#__PURE__*/function () {
  function EvaInstance() {
    this.rootElement = null;
    this.canvasElement = null;
    this.backgroundElement = null;
    this.hudElement = null;
    this.gameInstance = null;
    this.systems = [];
    this.listeningProps = [];
  }

  var _proto = EvaInstance.prototype;

  _proto.fromDOMRect = function fromDOMRect(rect) {
    if (this.currentScene) {
      var _this$currentScene$tr = this.currentScene.transform.scale,
          x = _this$currentScene$tr.x,
          y = _this$currentScene$tr.y;
      var newRect = {};

      for (var _i = 0, _arr = ['x', 'width', 'left', 'right']; _i < _arr.length; _i++) {
        var key = _arr[_i];

        if (rect[key] !== undefined) {
          newRect[key] = rect[key] / x;
        }
      }

      for (var _i2 = 0, _arr2 = ['y', 'height', 'top', 'bottom']; _i2 < _arr2.length; _i2++) {
        var _key = _arr2[_i2];

        if (rect[_key] !== undefined) {
          newRect[_key] = rect[_key] / y;
        }
      }

      return Object.freeze(newRect);
    } else {
      return Object.freeze((0, _extends2["default"])({}, rect));
    }
  };

  _proto.toDOMRect = function toDOMRect(rect) {
    if (this.currentScene) {
      var _this$currentScene$tr2 = this.currentScene.transform.scale,
          x = _this$currentScene$tr2.x,
          y = _this$currentScene$tr2.y;
      var newRect = {};

      for (var _i3 = 0, _arr3 = ['x', 'width', 'left', 'right']; _i3 < _arr3.length; _i3++) {
        var key = _arr3[_i3];

        if (rect[key] !== undefined) {
          newRect[key] = rect[key] * x;
        }
      }

      for (var _i4 = 0, _arr4 = ['y', 'height', 'top', 'bottom']; _i4 < _arr4.length; _i4++) {
        var _key2 = _arr4[_i4];

        if (rect[_key2] !== undefined) {
          newRect[_key2] = rect[_key2] * y;
        }
      }

      return Object.freeze(newRect);
    } else {
      return Object.freeze((0, _extends2["default"])({}, rect));
    }
  };

  (0, _createClass2["default"])(EvaInstance, [{
    key: "scene",
    get: function get() {
      return [].concat(this.gameInstance.scene.transform.children).map(function (child) {
        return child.gameObject;
      });
    }
  }, {
    key: "currentScene",
    get: function get() {
      return this.scene[0];
    }
  }, {
    key: "currentSceneSize",
    get: function get() {
      if (this.currentScene) {
        return Object.freeze((0, _extends2["default"])({}, this.currentScene.transform.size));
      } else {
        return {
          width: 0,
          height: 0
        };
      }
    }
  }]);
  return EvaInstance;
}();

exports.EvaInstance = EvaInstance;

var _default = new EvaInstance();

exports["default"] = _default;