K1 turtle: add dots every 50px

- Change dropdown images to include dots

![image](https://cloud.githubusercontent.com/assets/206973/3771638/1fff3d1c-18f7-11e4-85de-35e92edb921d.png)

![image](https://cloud.githubusercontent.com/assets/206973/3771772/69800308-18f8-11e4-8e18-67084651af25.png)

I suppose you could have a drawWordWith and a drawForwardWithout, then have
drawForward call these as necessary, but I wouldn't necessarily both with
the extra effort since what you have is working.


On Thu, Jul 31, 2014 at 2:45 PM, Brian Jordan <notifications@github.com>
wrote:

> In src/turtle/turtle.js:
>
> > @@ -522,10 +520,62 @@ Turtle.constrainDegrees_ = function (degrees) {
> >    return degrees;
> >  };
> >
> > -Turtle.moveForwardAndDraw_ = function (distance) {
> > -  Turtle.startPathIfPenDown_();
> > -  Turtle.moveForward_(distance);
> > -  Turtle.drawToTurtleIfPenDown_(distance);
> > +Turtle.moveForward_ = function (distance) {
> > +  if (!Turtle.penDownValue) {
> > +    Turtle.jumpForward_(distance);
> > +    return;
> > +  }
> > +
> > +  if (Turtle.shouldDrawJoints_()) {
> > +    Turtle.drawForwardWithJoints_(distance);
> > +  } else {
> > +    Turtle.drawForward_(distance);
> > +  }
>
> Tricky part is that drawForwardWithJoints is using drawForward as a helper
>
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> <https://github.com/code-dot-org/blockly/pull/782/files#r15672091>.
>