react-native-filament/lib/commonjs/hooks/useLightEntity.js

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

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.useLightEntity = useLightEntity;
var _react = require("react");
var _useFilamentContext = require("./useFilamentContext");
/**
 * Creates a new memoized light entity based on the given configuration.
 */
function useLightEntity(lightManager, config) {
  var _config$direction, _config$direction2, _config$direction3, _config$position, _config$position2, _config$position3;
  const falloffRadius = 'falloffRadius' in config ? config.falloffRadius : undefined;
  const spotLightCone = 'spotLightCone' in config ? config.spotLightCone : undefined;

  // Unwrap all array-ish values so the user doesn't have to memo them!
  const directionX = ((_config$direction = config.direction) === null || _config$direction === void 0 ? void 0 : _config$direction[0]) ?? undefined;
  const directionY = ((_config$direction2 = config.direction) === null || _config$direction2 === void 0 ? void 0 : _config$direction2[1]) ?? undefined;
  const directionZ = ((_config$direction3 = config.direction) === null || _config$direction3 === void 0 ? void 0 : _config$direction3[2]) ?? undefined;
  const positionX = ((_config$position = config.position) === null || _config$position === void 0 ? void 0 : _config$position[0]) ?? undefined;
  const positionY = ((_config$position2 = config.position) === null || _config$position2 === void 0 ? void 0 : _config$position2[1]) ?? undefined;
  const positionZ = ((_config$position3 = config.position) === null || _config$position3 === void 0 ? void 0 : _config$position3[2]) ?? undefined;
  const innerSpotLightCone = (spotLightCone === null || spotLightCone === void 0 ? void 0 : spotLightCone[0]) ?? undefined;
  const outerSpotLightCone = (spotLightCone === null || spotLightCone === void 0 ? void 0 : spotLightCone[1]) ?? undefined;
  const entity = (0, _react.useMemo)(() => {
    var _config$intensity;
    return lightManager.createLightEntity(config.type, config.colorKelvin, typeof config.intensity === 'number' ? config.intensity : (_config$intensity = config.intensity) === null || _config$intensity === void 0 ? void 0 : _config$intensity.value, directionX != null && directionY != null && directionZ != null ? [directionX, directionY, directionZ] : undefined, positionX != null && positionY != null && positionZ != null ? [positionX, positionY, positionZ] : undefined, config.castShadows, falloffRadius, innerSpotLightCone != null && outerSpotLightCone != null ? [innerSpotLightCone, outerSpotLightCone] : undefined);
  }, [config.castShadows, config.colorKelvin, config.intensity, config.type, directionX, directionY, directionZ, falloffRadius, innerSpotLightCone, lightManager, outerSpotLightCone, positionX, positionY, positionZ]);

  // Eventually subscribe to the intensity shared value
  const {
    workletContext
  } = (0, _useFilamentContext.useFilamentContext)();
  (0, _react.useEffect)(() => {
    const intensity = config.intensity;
    if (intensity == null) return;
    if (typeof intensity === 'number') return;
    const setIntensity = lightManager.setIntensity;
    return intensity.addListener(workletContext.createRunAsync(() => {
      'worklet';

      setIntensity(entity, intensity.value);
    }));
  }, [config.intensity, entity, lightManager, workletContext]);
  return entity;
}
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