Random Text using only these four letters GCTA

[Kevin Camp]

create a text layer and type GCTA into it, then add this expression to the source text and it will randomly jumble just those letters.

myText = text.sourceText.split( "" );
newText = "";

for ( i = 0 ; i < 4 ; i++ ){
r = Math.floor( random( 4 ) );
newText = newText + myText[ r ];
}

newText

then you could simply cut between the text layer with the expression and a text layer with final letters in the right order…. but i think you may have something else planned as it animates to the final resolve, so the expression may need to change to accomplish what you are after.

Kevin Camp
Art Director
KCPQ, KZJO & KRCW

[Kevin Camp]

This expression will resolve the text one character at a time based on layer markers. simply add a layer marker at the point at which you want a letter to resolve.

myText = text.sourceText.split( "" );

n = 0;
if (marker.numKeys > 0){
n = marker.nearestKey(time).index;
if (marker.key(n).time > time){
n--;
}
}

newText = "";
for ( i=n ; i<4 ; i++ ){
r = Math.floor( random( 4 ) );
newText = newText + myText[ r ];
}

text.sourceText.substr( 0,n ) + newText

Kevin Camp
Art Director
KCPQ, KZJO & KRCW