6) Distance and Heading

bob.distance(x,y) will measure how far the turtle is from a given location (x,y). bob.getDirection() will tell you what direction you are facing. bob.towards(x,y) will tell you what direction you would face if you are looking at the location. bob.stamp() will stamp the canvas with the turtle's shape.

Now, let's try it out. Suppose you want to place 7 stamps evenly spaced from the center to the top-right corner (180,200).

Turtle bob = new Turtle();

double x=180;

double y=200;

double turnAngle=bob.towards(x,y)-bob.getDirection();

bob.left(turnAngle);

double dist=bob.distance(x,y);

for(int i=0;i<7;i++)

{

bob.forward(dist/7);

bob.stamp();

}