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<?php |
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/** @formatter:off |
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* ****************************************************************** |
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* Created by Marko Kungla on Jun 21, 2016 - 1:43:40 AM |
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* Contact [email protected] |
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* @copyright 2016 Marko Kungla - https://github.com/mkungla |
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* @license The MIT License (MIT) |
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* |
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* @category AframeVR |
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* @package aframe-php |
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* |
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* Lang PHP (php version >= 7) |
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* Encoding UTF-8 |
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* File Material.php |
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* Code format PSR-2 and 12 |
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* @link https://github.com/mkungla/aframe-php |
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^ @issues https://github.com/mkungla/aframe-php/issues |
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* ******************************************************************** |
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* Contributors: |
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* @author Marko Kungla <[email protected]> |
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* ******************************************************************** |
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* Comments: |
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* @formatter:on */ |
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namespace AframeVR\Components; |
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use \AframeVR\Interfaces\ComponentInterface; |
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use \AframeVR\Interfaces\ShaderInterface; |
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use \AframeVR\Core\Exceptions\BadShaderCallException; |
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use \DOMAttr; |
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class Material implements ComponentInterface |
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{ |
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private $shaderObj; |
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/** |
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* Whether depth testing is enabled when rendering the material. |
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* |
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* @var string true |
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*/ |
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protected $depthTest = 'true'; |
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/** |
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* Extent of transparency. |
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* If the transparent property is not true, |
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* then the material will remain opaque and opacity will only affect color. |
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* |
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* @var float 1.0 |
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*/ |
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protected $opacity = 1.0; |
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/** |
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* Whether material is transparent. |
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* Transparent entities are rendered after non-transparent entities. |
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* |
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* @var string false |
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*/ |
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protected $transparent = 'false'; |
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/** |
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* Which sides of the mesh to render. |
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* Can be one of front, back, or double. |
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* |
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* @var string front |
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*/ |
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protected $side = 'front'; |
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/** |
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* To set a texture using one of the built-in shading models, specify the src property. |
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* |
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* src can be a selector to either an <img> or <video> element: |
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*/ |
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protected $src = false; |
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/** |
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* Get Component scripts |
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* |
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* {@inheritdoc} |
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* |
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* @return array |
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*/ |
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public function getScripts(): array |
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{ |
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return array(); |
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} |
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/** |
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* Does component have DOM Atributes |
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* |
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* {@inheritdoc} |
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* |
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* @return bool |
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*/ |
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public function hasDOMAttributes(): bool |
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{ |
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$this_attributes = get_object_vars($this); |
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$shader_attributes = is_object($this->shaderObj) ? get_object_vars($this->shaderObj) : []; |
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$attributes = array_merge($this_attributes, $shader_attributes); |
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unset($attributes['shaderObj']); |
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return !empty($attributes); |
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} |
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/** |
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* Remove default DOMElement Attributes which are not required |
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* |
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* @return void |
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*/ |
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public function removeDefaultDOMAttributes() |
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{ |
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$defaults = array( |
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'depthTest' => 'true', |
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'opacity' => 1.0, |
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'transparent' => 'false', |
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'side' => 'front' |
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); |
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$ignore = array( |
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'shaderObj' |
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); |
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foreach (get_object_vars($this) as $name => $value) { |
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if ((empty($value) || (array_key_exists($name, $defaults) && $value === $defaults[$name])) && ! in_array($name, $ignore)) |
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unset($this->$name); |
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} |
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/* Remove defaults from current shader */ |
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if(is_object($this->shaderObj)) |
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$this->shaderObj->removeDefaultDOMAttributes(); |
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} |
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/** |
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* Get DOMAttr for the entity |
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* |
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* @return DOMAttr |
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*/ |
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public function getDOMAttributes(): DOMAttr |
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{ |
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$attributes = []; |
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$material = array( |
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'depthTest' => $this->depthTest ?? null, |
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'opacity' => $this->opacity ?? null, |
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'transparent' => $this->transparent ?? null, |
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'side' => $this->side ?? null |
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); |
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foreach ($material as $key => $val) { |
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if (empty($val) || ! property_exists($key, $this)) |
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unset($material[$key]); |
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} |
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if (! empty($material)) { |
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$material_format = implode(': %s; ', array_keys($material)) . ': %s;'; |
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$attributes[] = vsprintf($material_format, array_values($material)); |
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} |
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/* Load shader if not loaded yet */ |
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if(is_object($this->shaderObj)) { |
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$shader_format = implode(': %s; ', array_keys(get_object_vars($this->shaderObj))) . ': %s;'; |
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$attributes[] = vsprintf($shader_format, array_values(get_object_vars($this->shaderObj))); |
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} |
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$format = count($attributes) === 1 ? '%s' : '%s %s'; |
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return new \DOMAttr('material', vsprintf($format, $attributes)); |
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} |
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/** |
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* Which shader or shading model to use. |
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* Defaults to the built-in standard shading model. |
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* Can be set to the built-in flat shading model or to a registered custom shader |
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* |
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* @var string standard |
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*/ |
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public function shader(string $shader = 'standard') |
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{ |
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if ($this->shaderObj instanceof ShaderInterface) |
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return $this->shaderObj; |
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try { |
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$shader = sprintf('\AframeVR\Core\Shaders\%s', ucfirst($shader)); |
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if (class_exists($shader)) { |
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$this->shaderObj = new $shader(); |
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} else { |
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throw new BadShaderCallException($shader); |
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} |
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} catch (BadShaderCallException $e) { |
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die($e->getMessage()); |
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} |
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return $this->shaderObj; |
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} |
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/** |
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* opacity |
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* |
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* Extent of transparency. If the transparent property is not true, |
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* then the material will remain opaque and opacity will only affect color. |
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* |
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* @param float $opacity |
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*/ |
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public function opacity(float $opacity = 1.0) |
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{ |
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$this->opacity = $opacity; |
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} |
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/** |
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* transparent |
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* |
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* Whether material is transparent. Transparent entities are rendered after non-transparent entities. |
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* |
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* @param string $transparent |
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*/ |
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public function transparent(string $transparent = 'false') |
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{ |
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$this->transparent = $transparent; |
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} |
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/** |
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* side |
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* |
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* Which sides of the mesh to render. Can be one of front, back, or double |
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* |
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* @param string $side |
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* @return EntityInterface |
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*/ |
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public function side(string $side = 'front'): EntityInterface |
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{ |
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$this->side = $side; |
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} |
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} |
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