showpoly question

[prozac424242]

How come this npc does not show the poly
that I want it to draw?
It looks right to me, and the item placement for
the x and y check work.
Ideally I want just a line to draw from the player then to go up
till it hits an onwall or the top of the level.

NPC Code:

---

// NPC made by Prozac

if (created || playertouchsme) {show; toweapons Line npc;}



if (weaponfired)

  {

  //draw a line going up this level or until till onwall

  this.y=playery-.5;

  this.x=playerx+1;

  while (this.y>0 || !(onwall(this.x,this.y)))

    {

    showpoly 10,(playerx,playery,this.x,this.y);

    changeimgvis 10,2;

    changeimgcolors 10,1,1,1,1;



//the bombs show up .. why not the line?

 //  putbomb 1,this.x,this.y;



    this.y--;

    sleep .05;

  }

}

---

Any help would be appreciated!