Text Jumping

jumpSize = 150;
stayX = transform.position[0];
newY = transform.position[1];
n = 0;
if (marker.numKeys > 0){n = marker.nearestKey(time).index;
if (marker.key(n).time > time){
n--;}}
if (n == 0){
[stayX,newY]
}else{
[stayX, (newY-((n+0)*jumpSize))]
}

pixels = -100;
f = 10; // number of transition frames

dur = (f*thisComp.frameDuration);

if (marker.numKeys > 0){
n = marker.nearestKey(time).index;
if (marker.key(n).time < time){
n++;
if (n > marker.numKeys) n = 0;}
if (n == 0){
p = marker.numKeys;
value + [0, p_pixels]
}else{t = marker.key(n).time;
p = ease(time,t - dur,t,n-1,n);
value + [0, p_pixels]
}
}else{
value
}