public zConstraint(zUnit unit1, zUnit unit2, bool ishide)
{
this.unit1 = unit1;
this.unit2 = unit2;
length = SPACING * unit1.getDistanceTo(unit2);
tearDist = length * TEARDIST;
isHide = ishide;
minlength = length * SPRINGSTOP;
unit1.connectedTo.Add(unit2, this);
unit2.connectedTo.Add(unit1, this);
}
internal float getDistanceTo(zUnit unit2)
{
return((pos - unit2.pos).magnitude);
}