set term x11 noraise
set xrange [-0.6:0.6]
set yrange [-0.6:0.6]
set size square
set key outside top center
set object rectangle from -0.5,-0.5 to 0.5,0.5 dt 3

stats 'trajectories.out' nooutput

do for [i=0:STATS_blocks-1] {
    plot 'trajectories.out' index i with points pt 7 ps 0.5 title sprintf("Frame %i out of %i", i, STATS_blocks-1)
    pause 0.0001
}

set term gif size 500,500 animate delay 0.001
set output "wiggly.gif"

do for [i=0:STATS_blocks-1:5] {
    plot 'trajectories.out' index i with points pt 7 ps 0.5 title sprintf("Frame %i out of %i", i, STATS_blocks-1)
}