^ampl=(.*)(sin|cos|tan|pos [xy])(.*)
ampl=floor($2$3$4)

^(alpha|pos|offset)=(.*)(sin|cos|pos [xy]|\.\d)(.*)([^t]),(.*)
$1=floor($2$3$4$5),$6
^(alpha|pos|offset)=(.*)([^t]),(.*)(sin|cos|pos [xy]|\.\d)(.*)
$1=$2$3,floor($4$5$6)
