void drawsprite()
{
  int i;
  char file[16];
  int target;
  int x, y, x1, x2, y1, y2, picx, picy;

  x1 = sprites[sc].mx-((64*xres/320)/sprites[sc].d);
  x2 = sprites[sc].mx+((64*xres/320)/sprites[sc].d);
  y1 = sprites[sc].my+((hy/1.25-(128*yres/240))/sprites[sc].d);
  y2 = sprites[sc].my+((hy/1.25)/sprites[sc].d);

  /* this should be a switch case. lazy me */
  if( sprites[sc].type == 1 ) { strcpy(file,"bub.bpf"); }
  if( sprites[sc].type == 2 ) { strcpy(file,"table.bpf"); }
  if( sprites[sc].type == 3 ) { strcpy(file,"column.bpf"); }
  if( sprites[sc].type == 4 ) { strcpy(file,"deadguy.bpf"); }
  if( sprites[sc].type == 5 ) { strcpy(file,"health.bpf"); }
  if( sprites[sc].type == 6 ) { strcpy(file,"ammo.bpf"); }
  target = open( file, O_BINARY|O_RDONLY, S_IREAD );
  read( target, &bpf, 2*64*64 );
  close( target );
 
  for( x=x1; x<x2; x++ )
  {
    if( x >= 0 && x < xres )
   {
      if( zbuffer[x] >= sprites[sc].d )
     {
       zbuffer[x] = sprites[sc].d;
      for( y=y1; y<y2; y++ )
      {
        picx = ((x-x1)*sprites[sc].d)/2;
        picy = ((y-y1)*sprites[sc].d)/2;
        if( bpf[picy][picx] != 13 )
            putpixel( x, y, bpf[picy][picx] );
      }
     }
   }
  }
}

Dynamic FindEnemy()
{
   Vec3 controlledObjPos = controlledObj.Position;

   Dynamic enemy = null;
   float enemyPriority = 0;

   float radius = controlledObj.ViewRadius;
   if (IsAttacking())
      radius = controlledObj.ChaseRadius;

   Map.Instance.GetObjects(new Sphere(controlledObjPos, radius),
      GameFilterGroups.UnitFilterGroup, delegate(MapObject mapObject)
   {
      Unit obj = (Unit)mapObject;

      Vec3 diff = obj.Position - controlledObj.Position;
      float objDistance = diff.LengthFast();
      if (objDistance > radius)
         return;

      Vec2 dir = controlledObj.Rotation.GetForward().ToVec2().GetNormalizeFast();
      Vec2 tar = diff.ToVec2().GetNormalizeFast();

      if (!IsAttacking())
      {
         float angle = MathUtils.GetVectorsAngle(dir, tar).InDegrees();
         if (float.IsNaN(angle))
            return;

         if (ControlledObject.FoV > 0 && ControlledObject.FoV < 360 &&
            angle > ControlledObject.FoV / 2)
            return;
      }

      float priority = GetAttackObjectPriority(obj, objDistance);

      if (priority != 0 && priority > enemyPriority)
      {
         enemy = obj;
         enemyPriority = priority;
      }
   });

   if (enemy != null && !IsAttacking())
      OnSpotEnemy();
   else if (enemy == null && isAgressive)
      OnLoseEnemy();

   return enemy;
}