react-native-filament/lib/commonjs/react/Model.js

A real-time physically based 3D rendering engine for React Native

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.Model = Model;
exports.ModelRenderer = ModelRenderer;
var _react = _interopRequireWildcard(require("react"));
var _useModel = require("../hooks/useModel");
var _getAssetFromModel = require("../utilities/getAssetFromModel");
var _useFilamentContext = require("../hooks/useFilamentContext");
var _Logger = require("../utilities/logger/Logger");
var _TouchHandlerContext = require("./TouchHandlerContext");
var _useApplyTransformations = require("../hooks/internal/useApplyTransformations");
var _TransformProps = require("../types/TransformProps");
var _ParentInstancesContext = require("./ParentInstancesContext");
var _useConfigureAssetShadow = require("../hooks/useConfigureAssetShadow");
var _jsxRuntime = require("react/jsx-runtime");
function _interopRequireWildcard(e, t) { if ("function" == typeof WeakMap) var r = new WeakMap(), n = new WeakMap(); return (_interopRequireWildcard = function (e, t) { if (!t && e && e.__esModule) return e; var o, i, f = { __proto__: null, default: e }; if (null === e || "object" != typeof e && "function" != typeof e) return f; if (o = t ? n : r) { if (o.has(e)) return o.get(e); o.set(e, f); } for (const t in e) "default" !== t && {}.hasOwnProperty.call(e, t) && ((i = (o = Object.defineProperty) && Object.getOwnPropertyDescriptor(e, t)) && (i.get || i.set) ? o(f, t, i) : f[t] = e[t]); return f; })(e, t); }
// Props we need for loading the model

/**
 * Loads a model from the given source.
 *
 *
 * If you are passing in a `.glb` model or similar from your app's bundle using `require(..)`, make sure to add `glb` as an asset extension to `metro.config.js`!
 * If you are passing in a `{ uri: ... }`, make sure the URL points directly to a `.glb` model. This can either be a web URL (`http://..`/`https://..`), a local file (`file://..`), or an native asset path (`path/to/asset.glb`)
 */
function Model({
  source,
  ...restProps
}) {
  const [_transformProps, modelProps] = (0, _TransformProps.extractTransformationProps)(restProps);
  const model = (0, _useModel.useModel)(source, modelProps);
  return /*#__PURE__*/(0, _jsxRuntime.jsx)(ModelRenderer, {
    model: model,
    ...restProps
  });
}
/**
 * Renders a model that was loaded with `useModel`.
 * Always prefer the `Model` component, except when you explicitly need to access the model instance imperatively.
 */
function ModelRenderer({
  model,
  onPress,
  children,
  ...restProps
}) {
  const [transformProps] = (0, _TransformProps.extractTransformationProps)(restProps);
  const asset = (0, _getAssetFromModel.getAssetFromModel)(model);
  const boundingBox = model.state === 'loaded' ? model.boundingBox : undefined;
  const rootEntity = model.state === 'loaded' ? model.rootEntity : undefined;
  (0, _useApplyTransformations.useApplyTransformations)({
    transformProps: transformProps,
    to: rootEntity,
    aabb: boundingBox
  });
  const renderableEntities = (0, _react.useMemo)(() => {
    // The entities are only needed for touch events, so only load them if a touch handler is provided
    if (asset == null || onPress == null) return [];
    return asset.getRenderableEntities();
  }, [asset, onPress]);
  const {
    view,
    renderableManager
  } = (0, _useFilamentContext.useFilamentContext)();
  const onTouchStart = (0, _react.useCallback)(async event => {
    if (renderableEntities == null || onPress == null) return;
    const {
      locationX,
      locationY
    } = event.nativeEvent;
    const entity = await view.pickEntity(locationX, locationY);
    _Logger.Logger.debug('Picked entity', entity, 'at', locationX, locationY);
    if (entity == null) {
      _Logger.Logger.debug('No entity was picked');
      return;
    }

    // Check if the model was picked
    for (const renderableEntity of renderableEntities) {
      if (entity?.id === renderableEntity.id) {
        _Logger.Logger.debug('entity', entity.id, 'renderableEntity', renderableEntity.id);
        onPress(entity, renderableEntities);
        return;
      }
    }
    _Logger.Logger.debug('No renderable entity of the model was picked:', renderableEntities);
  }, [onPress, renderableEntities, view]);
  const {
    addTouchHandler
  } = (0, _react.useContext)(_TouchHandlerContext.TouchHandlerContext);
  (0, _react.useEffect)(() => {
    if (onPress == null) return;
    const id = Math.random().toString(36).substring(7);
    _Logger.Logger.debug('Adding touch handler', id);
    const removeHandler = addTouchHandler(onTouchStart);
    return () => {
      _Logger.Logger.debug('Removing touch handler', id);
      removeHandler();
    };
  }, [addTouchHandler, onPress, onTouchStart]);
  const instances = (0, _react.useMemo)(() => {
    if (asset === undefined) {
      return null;
    }
    return asset.getAssetInstances();
  }, [asset]);
  (0, _useConfigureAssetShadow.useConfigureAssetShadow)({
    renderableManager,
    asset,
    castShadow: restProps.castShadow,
    receiveShadow: restProps.receiveShadow
  });
  if (asset == null) {
    return null;
  }
  return /*#__PURE__*/(0, _jsxRuntime.jsx)(_ParentInstancesContext.ParentInstancesContext.Provider, {
    value: instances,
    children: children
  });
}
//# sourceMappingURL=Model.js.map