A typewriter effect is a text effect where text is shown letter by letter, instead of all at once (the default behavior). This article provides a tutorial on how to make a typewriter effect.
First, create these local variables.
(i)- a variable used for iteration
(text shown)- the contents of the "say" message every iteration
define typewrite (text) how long? (sec) ask? <ask> speed: (speed) set [text shown v] to  set [i v] to  // initialize variables repeat (length of (text)) // it is required to repeat to 'typewrite' every letter set [text shown v] to (join (text shown) (letter (i) of (text))) // this will take the previous text shown and add the next letter say (text shown) // display text change [i v] by (1) // iterate wait ((1) / (speed)) secs // wait for a little bit, based on speed end if <ask> then // checks if it should ask the resulting text ask (text) and wait // if so, asks text else wait (sec) secs // if not, wait a little longer to read say  // say nothing to 'delete' text off of the message end
This block can now be used multiple times by dragging the custom block out and filling out the parameters.
The parameters to be filled in, in order, are:
- The text to be shown
- The number of seconds to wait after the typewriting is finished
- "yes" if the typewriting should end by asking the text as a question, leave it blank otherwise. (If this is "yes", leave the number of seconds to wait blank.)
- The number of characters per second to show. For example, if this is set to 5, 5 characters will appear every second.
|Caution:||Do not leave this blank, because otherwise the block will wait forever.|