Turning this off

[ShockwaveISTHEBEST]

Ok I got the npc person so that he wouldnt do anything form the start and so that he would attack if you said "intruder". I was trying to find a way to turn him off and set him back to his old location. How would I do this? I have this much.

// Graal2001 NPC by Stefan Knorr
if (created) {
// Initialize the attributes
showcharacter;
setcharprop #3,head16.png;
setcharprop #C0,orange;
setcharprop #C1,gray;
setcharprop #C2,darkblue;
setcharprop #C3,darkblue;
setcharprop #C4,darkblue;
setcharprop #n,Gaurd (Graal Royal Army);
setcharprop #2,no-shield.gif;
shieldpower = 1;
dir = 2;
swordpower = 1;
}
if (playerchats && strequals(#c,intruder) && strequals(#g,Graal Royal Army)) {
// Initialize the this. variables
message;
this.huntspeed = 0.4;
timeout = 0.05;
this.walkmode = 1;
if (wasthrown && this.walkmode>1) this.walkmode = 1;
this.x1 = 30;
this.x2 = 38;
this.y1 = 22;
this.y2 = 38;
this.speed = 0.4;
this.mode = 0;
setcharani idle,;
this.runcounter = int(random(22,38));
}
// Walking stuff
if (timeout && this.mode==0) { // WALKING
setcharani walk,;
newx = x + vecx(dir)*this.speed;
newy = y + vecy(dir)*this.speed;
this.runcounter--;
if (this.walkmode==1) { // RANDOM
if (this.runcounter>0) {
testx = newx + 1.5 + vecx(dir);
testy = newy + 2 + vecy(dir);
if (onwall(testx,testy)) {
dir = (dir+2)%4;
this.runcounter = int(random(0,60));
} else {
x = newx;
y = newy;
}
} else {
this.runcounter = int(random(10,40));
dir = (dir+1+int(random(0,2))*2)%4;
}
} else if (this.walkmode==2) { // LEFTRIGHT
if (dir!=1 && dir!=3) dir = 3;
else {
x = newx;
y = newy;
if ((dir==1 && x<=this.x1) || (dir==3 && x>=this.x2))
dir = (dir+2)%4;
}
} else if (this.walkmode==3) { // UPDOWN
if (dir!=0 && dir!=2) dir = 2;
else {
x = newx;
y = newy;
if ((dir==0 && y<=this.y1) || (dir==2 && y>=this.y2))
dir = (dir+2)%4;
}
} else if (this.walkmode==4) { // RECTANGLE
x = newx;
y = newy;
if ((dir==0 && y<=this.y1) || (dir==1 && x<=this.x1) ||
(dir==2 && y>=this.y2) || (dir==3 && x>=this.x2))
dir = (dir+3)%4;
}
if (this.walkmode>1 && this.runcounter<=0)
this.runcounter = 20;
message;
timeout = 0.05;
}

// Sword attacking stuff
if (timeout && (this.mode==0 || this.mode==2)) {
// Look for players
mindist = 1000;
for (i=0; i<playerscount; i++)
if (players[i].hearts>0 && players[i].id>=0) {
dx = players[i].x - x;
dy = players[i].y - y;
if (abs(dx)>abs(dy)) {
if (dx>0) pdir=3; else pdir=1;
} else {
if (dy>0) pdir=2; else pdir=0;
}
if (pdir==dir) {
dist = (dx*dx+dy*dy)^0.5;
if (dist<mindist) {
cansee = 1;
if (abs(dx)>abs(dy)) k = int(abs(dx));
else k = int(abs(dy));
for (j=0; j<=k-2; j++)
if (onwall(x+1.5+dx*j/k,y+2+dy*j/k)) cansee = 0;
if (cansee!=0) {
mindist = dist;
aimplayer = i;
this.aimx = players[i].x;
this.aimy = players[i].y;
}
}
}
}
if (mindist<=3) {
this.runcounter = -1;
this.mode = 3; // SLAYING
setcharani sword,;
timeout = 0.05;
} else if (mindist<20) {
if (this.mode!=2) message Intruder;
this.runcounter = 100;
this.mode = 2; // HUNTING
} else timeout = 0.05;
}
if (timeout && this.mode==3) { // SLAYING
this.runcounter++;
if (this.runcounter>4) {
this.runcounter = 100;
this.mode = 2; // HUNTING
setcharani idle,;
}
message;
timeout = 0.05;
}
if (timeout && this.mode==2) { // HUNTING
setcharani walk,;
this.runcounter--;
if (this.runcounter>0 && aimplayer<playerscount && players[aimplayer].hearts>0) {
// Get new direction
dx = players[aimplayer].x-x;
dy = players[aimplayer].y-y;
if (abs(dx)>abs(dy)) {
if (dx>0) dir=3; else dir=1;
} else {
if (dy>0) dir=2; else dir=0;
}

// Test if we can do a step
dx = this.aimx-x;
dy = this.aimy-y;
if (abs(dx)<=1 && abs(dy)<=1) {
this.aimx = players[aimplayer].x;;
this.aimy = players[aimplayer].y;
dx = this.aimx-x;
dy = this.aimy-y;
}
if (abs(dx)>abs(dy)) {
if (dx>0) testdir=3; else testdir=1;
} else {
if (dy>0) testdir=2; else testdir=0;
}
len = (dx*dx+dy*dy)^0.5;
addx = (dx/len)*this.huntspeed;
addy = (dy/len)*this.huntspeed;
testx = x + 1.5;
testy = y + 2;
if (!onwall(testx+addx,testy+addy)) {
// Do a step
x += addx;
y += addy;
} else if (!onwall(testx+addx,testy)) x += addx;
else if (!onwall(testx,testy+addy)) y += addy;
} else {
this.mode = 0; // WALKING
this.walkmode = 1; // RANDOM
this.runcounter = int(random(22,38));
setcharani idle,;
dir = (dir+2)%4;
message;
}
timeout = 0.05;
}