aframe-area-light-component.js

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/******/ ([
/* 0 */
/***/ (function(module, exports) {

	'use strict';
	
	/**
	 * A-Frame Wrapper for THREE.JS RectAreaLight
	 * @author Mo Kargas (DEVLAD) mo@devlad.com
	 */
	
	/* global AFRAME */
	/* global THREE */
	
	if (typeof AFRAME === 'undefined') {
	  throw new Error('Component attempted to register before AFRAME was available.');
	}
	
	if (typeof THREE === 'undefined') {
	  throw new Error('Component attempted to register before THREE was available.');
	}
	
	AFRAME.registerComponent('area-light', {
	  schema: {
	    intensity: {
	      type: 'number',
	      default: 1.0
	    },
	    color: {
	      type: 'color',
	      default: '#FFFFFF'
	    },
	    width: {
	      type: 'number',
	      default: 2.0
	    },
	    height: {
	      type: 'number',
	      default: 2.0
	    },
	    helperColor: {
	      type: 'color',
	      default: undefined
	    },
	    showHelper: {
	      type: 'boolean',
	      default: true
	    }
	  },
	
	  init: function init() {
	    this.setHelperColor = this.setHelperColor.bind(this);
	
	    this.rectLight = new THREE.RectAreaLight(this.data.color, this.data.intensity, this.data.width, this.data.height);
	    this.rectLight.position.set(this.data.width / 2, 0, 0);
	    this.el.object3D.add(this.rectLight);
	
	    //Helper set, assign to scene
	    if (this.data.showHelper) {
	
	      this.rectLightHelper = new THREE.RectAreaLightHelper(this.rectLight);
	      this.rectLightHelper.position.set(this.rectLight.position.x, 0, 0);
	      this.el.object3D.add(this.rectLightHelper);
	
	      //Determine if we have a different helperColor set
	      if (this.data.helperColor !== undefined) {
	        this.setHelperColor(this.data.helperColor);
	      } else {
	        this.setHelperColor(this.data.color);
	      }
	    }
	  },
	
	  setHelperColor: function setHelperColor(color) {
	    //Set helper material color if enabled
	    //NOTE: RectLightHelper consists of submeshes https://github.com/mrdoob/three.js/blob/master/src/helpers/RectAreaLightHelper.js
	    this.rectLightHelper.children.forEach(function (node) {
	      return node.material.color.set(color);
	    });
	  },
	
	  update: function update(oldData) {
	
	    //Update light values
	    this.rectLight.intensity = this.data.intensity;
	    this.rectLight.width = this.data.width;
	    this.rectLight.height = this.data.height;
	    this.rectLight.color.set(this.data.color);
	
	    if (this.rectLightHelper !== undefined) {
	      this.rectLightHelper.visible = this.data.showHelper;
	
	      //Update, as child light may have changed dimensions
	      this.rectLightHelper.update();
	
	      if (this.data.helperColor !== undefined) {
	        this.setHelperColor(this.data.helperColor);
	      } else {
	        this.setHelperColor(this.data.color);
	      }
	    }
	  }
	});

/***/ })
/******/ ]);
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