Check if player exits OnTouch Zone

[Syouji]

So what I'm trying to do is to have the script check if a player is still within the OnTouch zone. Here is an example NPC:

brasilis,249,60,0 script School of Fish#fs1 723,2,2,{
end;
OnTouch:
set .fishno,1;
callfunc "fishfunc",.fishno;
end;
}

In the function "fishfunc" I want it to perform a check to see if that player is still within the 2x2 cell radius around 249,60. If the user is still in that area they can continue with fishing, if not, they cannot fish. There is already a menu that pops up immediately stating if they wish to fish when they enter that OnTouch zone as long as they meet the required conditions. I just dont want people to walk across an OnTouch zone bypassing the area around the fishing zone and continue to fish. Just doesn't make sense.

getmapxy(.npcMap$, .npcX, .npcY, 1, strnpcinfo(0)) might somehow be used in this. I need some help here ;x

[Emistry]

erm..i think you can try make use of the distance...

brasilis,249,60,0 script School of Fish#fs1 723,2,2,{
end;
OnTouch:
do{
set .@fishno,1;
callfunc "fishfunc",.@fishno;
getmapxy( .@NPCMAP,.@NPCX,.@NPCY,1 );
getmapxy( .@PCMAP,.@PCX,.@PCY,0 );
}while( distance( .@NPCX,.@NPXY,.@PCX,.@PCY ) <= 2 );
end;
}

[Syouji]

Thanks Emistry. Ill try it out =)

Edit: SOLVED

For those who are interested in how I did it, using Emistry's idea:

// Player and npc coordinates at the time of the shot
getmapxy $@mapname$,$@mapxNPC,$@mapyNPC,1;
getmapxy $@mapname$,$@mapxPC,$@mapyPC,0;
// verification of the player's distance
if (distance($@mapxNPC,$@mapyNPC,$@mapxPC,$@mapyPC)>2) {
mes "You cannot fish at this distance.";
close;
}