Script Java

11.3 Rekursion
}
position = new Point(clip.x + clip.width/2,clip.y + clip.height/2);
orientation = 0;
public void forward(int distance) {
int x = position.x +
(int)Math.round(distance*Math.sin(Math.PI*orientation/180));
int y = position.y -
(int)Math.round(distance*Math.cos(Math.PI*orientation/180));
graphics.drawLine(position.x, position.y, x, y);
position.setLocation(x, y);
}
public void right(int angle) {
orientation = (orientation + angle) % 360;
}
public void back(int distance) {forward(-distance);}
}
public void left(int angle) {right(-angle);}
public class PowerTurtle extends Turtle {
public PowerTurtle(Graphics g) {super(g);}
public void star(int n, int size) {
for (int i=0;i0) {
forward(size);
right(60);
spiral(size-3);
}
}
}
public void tree(int size) {
if (size>0) {
forward(size);
left(60);
tree(size/2);
right(120);
tree(size/2);
left(60);
back(size);
}
}
public class UserFrame extends Frame{
public UserFrame() {
setTitle("Drawing");
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