Using Expressions to stop and start movement of solid layers

i have 2 solid layers ( red square , blue square). position of red square [129,239] , blue square right of red square position [301, 240].  blue square move right 2 seconds, 1 second after start timeline.  when blue square stops moving trigger red square move right 2 seconds.  perform using expressions code without creating keyframes on timeline , i'm having trouble.  please help!

 

thanks

you didn't how far want solids move in 2 seconds example assumes 100 pixels right.

 

red position:

 

dist = 100;

startpos = [129,239];

linear(time,3,5,startpos,startpos+[dist,0])

 

 

 

blue postion:

 

dist = 100;

startpos = [301,240];

linear(time,1,3,startpos,startpos+[dist,0])

 

 

 

dan

More discussions in After Effects Expressions

adobe