Thanks for all the suggestions, folks. While that flip flop did work out as anticipated, it turns out thats not exactly what I thought I needed
What I ended up doing was sending all the data in the file to an array then incrementing the elements of that array in a for loop. Inside that for loop, I set a few triggers via a switch. Since the beginning value of each line tells me what sort of data it contains, I then split each line depending on what it was:

{{{vars}}}
my $infile = <STDIN>;
print"Your input file is $infile\n\n";

open (INFILE, "<$infile")||die "no such file";

while (<INFILE>) {

@data = <INFILE>;
    for ($x = 0; $x<=$#data; $x++){
    chomp ($data[$x]);
    switch ($data[$x]){
# If start of section, increment array by 3 to skip header
#
        case /^Begin Targets/ {
               $x += 3;
            }
            case /^0 / {
            # do not want
                last;
            
            } case /^1 / {
              @line = split(/ /,$data[$x]);
            # Get data out
              last;
            } case /^2 / {
              @line = split(/ /,$data[$x]);
            # Get data out
              last;
            } case /^3 / {
              @line = split(/ /,$data[$x]);
            # Get data out
              last;
          } # end case3
      } # end switch
  } # end for
} #end
[download]

In each case I can take the line and set it to some variable depending on which place in the field I want,

    $DistX[$x] = $line[2];
    $DistY[$x] = $line[3];
[download]

...etc
Well Im half way there, Now I just need to output this data to a csv spreadsheet to plot it...but thats for tomorrow :)