Random Stars

Random Circles

In this exercise we will draw 5 stars of different colors: The colors are randomly picked from the list of colors

colorList = ['red', 'orange', 'green', 'blue', 'purple', 'pink', 'brown', 'gray', 'gold']
mycolor = colorList[random.randint(0,len(colorList)-1)]

After these line runs, the variable mycolor will be assigned some random color from the list of colors myColorList. We will then use this color to fill a star. The stars are drawn at random locations selected in x = random.randint(-max_distance, max_distance) y = random.randint(-max_distance, max_distance) The size of star is also randomly picked size = random.randint(15, 30)

Sample Code

import turtle
import random
# this is a list of colors
colorList = ['red', 'orange', 'green', 'blue', 'purple', 'pink', 'brown', 'gray', 'gold']
dan = turtle.Turtle()
dan.shape('turtle')
dan.delay(1)
dan.clear()
dan.penup()

max_distance = 160

# draw an eight sided star
def star(x, y, size, color):
  dan.goto(x, y)
  dan.color(colorList[random.randint(0,len(colorList)-1)])
  dan.pendown()
  dan.begin_fill()
  for i in range(1,8):
     dan.forward(size)
     dan.right(150)
     dan.forward(size)
     dan.left(100)
  dan.end_fill()
  dan.right(10)
  dan.penup()

# draw a pattern at a random location on the screen
for i in range(5):
   x = random.randint(-max_distance, max_distance)
   y = random.randint(-max_distance, max_distance)
   size = random.randint(15, 30)
   color_index = random.randint(0,8)
   # draw a star with size and color
   star(x,y,size, color_index)

# hide so we have a nice drawing
dan.hideturtle()

Experiments

1. Can you create a variable for the number of circles to draw?
2. Go to the Trinket colors page and see the name of other colors you can use. Note that you can use any of these colors in your lists.