Adding the "distortion" option

DependencyInjection/Configuration.php

@@ -38,6 +38,7 @@ class Configuration implements ConfigurationInterface
                 ->scalarNode('bypass_code')->defaultValue(null)->end()
                 ->scalarNode('whitelist_key')->defaultValue('captcha_whitelist_key')->end()
                 ->scalarNode('humanity')->defaultValue(0)->end()
+                ->scalarNode('distortion')->defaultValue(true)->end()
             ->end()
         ;
 

Generator/CaptchaGenerator.php

@@ -105,6 +105,8 @@ class CaptchaGenerator
     {
         $fingerprint = $this->getFingerprint($key, $options);
 
+        $this->builder->setDistortion($options['distortion']);
+
         $content = $this->builder->build(
             $options['width'],
             $options['height'],

README.md

@@ -135,6 +135,7 @@ You can define the following configuration options globally or on the CaptchaTyp
 * **whitelist_key**: the session key to use for keep the session keys that can be used for captcha storage, when using as_url (default=captcha_whitelist_key)
 * **reload**: adds a link to reload the code
 * **humanity**: number of extra forms that the user can submit after a correct validation, if set to a value different of 0, only 1 over (1+humanity) forms will contain a CAPTCHA (default=0, i.e each form will contain the CAPTCHA)
+* **distortion**: enable or disable the distortion on the image (default=true, enabled)
 
 Example :