/*global define*/
define([
'../Core/freezeObject'
], function(
freezeObject) {
'use strict';
/**
* Specifies whether the object casts or receives shadows from each light source when
* shadows are enabled.
*
* @exports ShadowMode
*/
var ShadowMode = {
/**
* The object does not cast or receive shadows.
*
* @type {Number}
* @constant
*/
DISABLED : 0,
/**
* The object casts and receives shadows.
*
* @type {Number}
* @constant
*/
ENABLED : 1,
/**
* The object casts shadows only.
*
* @type {Number}
* @constant
*/
CAST_ONLY : 2,
/**
* The object receives shadows only.
*
* @type {Number}
* @constant
*/
RECEIVE_ONLY : 3,
/**
* @private
*/
NUMBER_OF_SHADOW_MODES : 4
};
/**
* @private
*/
ShadowMode.castShadows = function(shadowMode) {
return (shadowMode === ShadowMode.ENABLED) || (shadowMode === ShadowMode.CAST_ONLY);
};
/**
* @private
*/
ShadowMode.receiveShadows = function(shadowMode) {
return (shadowMode === ShadowMode.ENABLED) || (shadowMode === ShadowMode.RECEIVE_ONLY);
};
/**
* @private
*/
ShadowMode.fromCastReceive = function(castShadows, receiveShadows) {
if (castShadows && receiveShadows) {
return ShadowMode.ENABLED;
} else if (castShadows) {
return ShadowMode.CAST_ONLY;
} else if (receiveShadows) {
return ShadowMode.RECEIVE_ONLY;
} else {
return ShadowMode.DISABLED;
}
};
return freezeObject(ShadowMode);
});