Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.
Common duplication problems, and corresponding solutions are:
| 1 | <?php |
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| 37 | class Entity implements EntityInterface |
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| 38 | { |
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| 39 | /** |
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| 40 | * Array of used components |
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| 41 | * |
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| 42 | * @var array |
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| 43 | */ |
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| 44 | protected $components = array(); |
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| 45 | |||
| 46 | /** |
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| 47 | * Array of used animations |
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| 48 | * |
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| 49 | * @var array |
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| 50 | */ |
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| 51 | protected $animations = array(); |
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| 52 | |||
| 53 | /** |
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| 54 | * Dom element attributes |
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| 55 | * |
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| 56 | * @var unknown |
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| 57 | */ |
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| 58 | protected $attrs = array(); |
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| 59 | |||
| 60 | /** |
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| 61 | * Children Factory |
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| 62 | * |
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| 63 | * @var array |
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| 64 | */ |
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| 65 | protected $childrenFactory; |
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| 66 | |||
| 67 | /** |
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| 68 | * Indent used when rendering formated outout |
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| 69 | * |
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| 70 | * @var unknown |
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| 71 | */ |
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| 72 | private $indentation = 0; |
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| 73 | |||
| 74 | /** |
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| 75 | * Constructor |
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| 76 | * |
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| 77 | * @param string $id |
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| 78 | */ |
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| 79 | 76 | public function __construct(string $id = 'untitled') |
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| 94 | |||
| 95 | 45 | public function init() |
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| 98 | |||
| 99 | 45 | public function defaults() |
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| 102 | |||
| 103 | /** |
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| 104 | * Set DOM attributes |
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| 105 | * |
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| 106 | * @param string $attr |
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| 107 | * @param string $val |
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| 108 | * @return void |
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| 109 | */ |
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| 110 | 76 | public function attr(string $attr, string $val) |
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| 114 | |||
| 115 | /** |
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| 116 | * Child entity / primitive |
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| 117 | * |
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| 118 | * @return EntityChildrenFactory |
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| 119 | */ |
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| 120 | 7 | public function child(): EntityChildrenFactory |
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| 124 | |||
| 125 | /** |
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| 126 | * Position component |
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| 127 | * |
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| 128 | * All entities inherently have the position component. |
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| 129 | * |
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| 130 | * @param int|float $x_axis |
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| 131 | * @param int|float $y_axis |
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| 132 | * @param int|float $z_axis |
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| 133 | * @return \AframeVR\Core\Entity |
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| 134 | */ |
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| 135 | 15 | public function position(float $x_axis = 0, float $y_axis = 0, float $z_axis = 0): Entity |
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| 142 | |||
| 143 | /** |
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| 144 | * Rotation component |
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| 145 | * |
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| 146 | * All entities inherently have the rotation component. |
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| 147 | * |
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| 148 | * @param int|float $roll |
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| 149 | * @param int|float $pitch |
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| 150 | * @param int|float $yaw |
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| 151 | * @return \AframeVR\Core\Entity |
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| 152 | */ |
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| 153 | 14 | public function rotation(float $roll = 0, float $pitch = 0, float $yaw = 0): Entity |
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| 160 | |||
| 161 | /** |
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| 162 | * Scale component |
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| 163 | * |
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| 164 | * All entities inherently have the scale component. |
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| 165 | * |
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| 166 | * @param int|float $scale_x |
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| 167 | * @param int|float $scale_y |
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| 168 | * @param int|float $scale_z |
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| 169 | * @return \AframeVR\Core\Entity |
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| 170 | */ |
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| 171 | 9 | public function scale(float $scale_x = 1, float $scale_y = 1, float $scale_z = 1): Entity |
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| 178 | |||
| 179 | /** |
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| 180 | * Animations |
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| 181 | * |
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| 182 | * @param mixed $name |
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| 183 | * @return \AframeVR\Interfaces\AnimationInterface |
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| 184 | */ |
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| 185 | 5 | public function animation($name = 'untitled'): AnimationInterface |
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| 189 | |||
| 190 | /** |
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| 191 | * Set mixin attribute |
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| 192 | * |
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| 193 | * @param string $id |
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| 194 | * @return \AframeVR\Core\Entity |
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| 195 | */ |
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| 196 | 3 | public function mixin(string $id) |
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| 201 | |||
| 202 | /** |
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| 203 | * Load component for this entity |
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| 204 | * |
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| 205 | * @param string $component_name |
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| 206 | * @throws \AframeVR\Core\Exceptions\BadComponentCallException |
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| 207 | * @return object|null |
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| 208 | */ |
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| 209 | 76 | public function component(string $component_name) |
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| 223 | |||
| 224 | /** |
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| 225 | * Handle entity components |
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| 226 | * |
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| 227 | * Since we might need to customize these to have |
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| 228 | * custom components loaded as $this->methosd aswell therefore |
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| 229 | * we have these placeholder magic methods here |
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| 230 | * |
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| 231 | * @param string $component_name |
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| 232 | * @param array $args |
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| 233 | */ |
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| 234 | 21 | View Code Duplication | public function __call(string $component_name, array $args) |
| 245 | |||
| 246 | /** |
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| 247 | * Create and add DOM element of the entity |
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| 248 | * |
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| 249 | * @param \DOMDocument $aframe_dom |
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| 250 | * @return \DOMElement |
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| 251 | */ |
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| 252 | 4 | public function domElement(\DOMDocument &$aframe_dom): DOMElement |
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| 271 | |||
| 272 | /** |
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| 273 | * Append DOM attributes no set by components |
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| 274 | * |
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| 275 | * @param \DOMElement $a_entity |
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| 276 | */ |
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| 277 | 4 | View Code Duplication | private function appendAttributes(\DOMElement &$a_entity) |
| 285 | |||
| 286 | /** |
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| 287 | * Append childern to entities DOM element |
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| 288 | * |
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| 289 | * @param \DOMDocument $aframe_dom |
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| 290 | * @param \DOMElement $a_entity |
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| 291 | */ |
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| 292 | 4 | View Code Duplication | private function appendChildren(\DOMDocument &$aframe_dom, \DOMElement &$a_entity) |
| 308 | |||
| 309 | /** |
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| 310 | * Append childern to entities DOM element |
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| 311 | * |
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| 312 | * @param \DOMDocument $aframe_dom |
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| 313 | * @param \DOMElement $a_entity |
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| 314 | */ |
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| 315 | 4 | View Code Duplication | private function appendAnimations(\DOMDocument &$aframe_dom, \DOMElement &$a_entity) |
| 329 | } |
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| 330 |
Our type inference engine has found an assignment to a property that is incompatible with the declared type of that property.
Either this assignment is in error or the assigned type should be added to the documentation/type hint for that property..