* creates a temp text
* hides the actual text that contains the string (_temp_field)
* after that, it takes the string from the text (take a look at the example above)
* then, it detects the number of characters in the actual string
* it starts adding those characters (from the text's string) into the temp text, one by one (letter by letter)
* it does that with the given delay time (_delay)
* at the end, it hides the temp text and destroys it
* it shows the actual text (_temp_field)