import org.teachingextensions.logo.Colors;

import org.teachingextensions.logo.Tortoise;

public class holidaytree {

public static void main(String[] args) {

holidaytree ohChristmasTree = new holidaytree();

ohChristmasTree.drawStar();

ohChristmasTree.drawTreeBody();

ohChristmasTree.drawTreeTrunk();

}

double treeWidth = 15;

double scale = 1.1; //This is how much the width of the tree increases with each layer down

void drawTreeBody() {

// 8. Change the color of the line the tortoise draws to forest green

Tortoise.setSpeed(10);

Tortoise.setPenColor(Colors.Greens.Chartreuse);

// 1. Make a variable for turnAmount and set it to 175

int turnAmount = 175;

// 2. Start the Tortoise facing to the right

Tortoise.turn(90);

// 5. Repeat steps 3 through 11, 11 times

for (int i=0; i<11; i++) {

// 3. Move the tortoise the width of the tree

Tortoise.move(treeWidth);

// 4. Turn the tortoise the current turnAmount to the right

Tortoise.turn(turnAmount);

// 6. Set the treeWidth to the current treeWidth times the scale

treeWidth=treeWidth*scale;

// 7. Move the tortoise the width of a tree again

Tortoise.move(treeWidth);

// 9. Turn the tortoise the current turn amount to the LEFT

Tortoise.turn(-turnAmount);

// 10. Set the treeWidth to the current treeWidth times the scale again

treeWidth=treeWidth*scale;

// 11. Decrease turnAmount by 1

turnAmount--;

}

}

void drawTreeTrunk() {

// 1. Move the tortoise half the width of the tree

Tortoise.move(treeWidth/2);

// 2. Change the tortoise so that it is pointing straight down

Tortoise.turn(90);

// 4. Set the pen width to the tree width divided by 10

Tortoise.setPenWidth(treeWidth/10);

// 5. Change the color of the line the tortoise draws to brown

Tortoise.setPenColor(Colors.Browns.Chocolate);

// 3. Move the tortoise a quarter the tree width

Tortoise.move(treeWidth/4);

}

void drawStar() {

// * Optional: Draw a red star on top of the tree. Hint: 144 degrees makes a star.

Tortoise.setPenColor(Colors.Reds.IndianRed);

for (int i=0; i<5; i++) {

Tortoise.move(15);

Tortoise.turn(144);

}

}

}