README.md

Baby Focus Book for My Son

• Reference ☞ https://docs.python.org/ko/3.10/library/turtle.html

As-Is

• Language : Python (Turtle Graphics)
• Functions
  • Randomly generate N-polygon figures including circle
  • Can choose color mode and set border size

To-Be

• Other language candidates : Web, VBA, BASIC, ……
• Functions to add
  • Randomly generate and eliminate figures
  • Improve figures : ex) star, butterfly, ……
  • Operate based on touch response

List

• Black & White 1 - BW01.py (2021.06.15)

Black & White 1 (2021.06.15)

BW01.py

from turtle import *
import random
import time

def drawFigures(bw = 0, penSize = 0) :

    # locate at random position
    penup()                             # penup() = pu() = up() : move without drawing
    posX = random.randint(-250, 250)
    posY = random.randint(-150, 50)
    setpos(posX, posY)

    # set pen size
    pensize(penSize)

    # choose a random RGB color
    if (bw == 0) :
        hexNum1 = str(hex(random.randint(0, pow(256, 3) - 1))[2:])
        hexNum2 = str(hex(random.randint(0, pow(256, 3) - 1))[2:])
        col1 = '#' + '0' * (6 - len(hexNum1)) + hexNum1
        col2 = '#' + '0' * (6 - len(hexNum2)) + hexNum2
        color(col1, col2)               # color(pencolor, fillcolor)
    elif (bw == 1) :
        color("white", "black")
    else :                              # bw == 2 : black or white figures
        if (random.randint(0, 1)) :
            penColor = "white"
            fillColor = "black"
        else :
            penColor = "black"
            fillColor = "white"
        color(penColor, fillColor)


    # draw a random n-polygon figure
    pendown()                           # pendown() = pd() = down() : move with drawing
    begin_fill()
    size = random.randint(25, 100)
    nPolygon = random.randint(1,10)
    if (nPolygon < 3) :                 # steps < 3 : draw just a line
        circle(size)
    else :
        circle(size, steps = nPolygon)
    end_fill()
    time.sleep(1)

# main part

setup(width = 600, height = 300)
title("My Baby Black & White Book 1")

hideturtle()                            # hide turtle : make the moving speed faster
delay(0)                                # 0 : mostly faster

n = 0
while (True) :
    drawFigures(bw = 2, penSize = 10)   # bw : 0 - color (default), 1 - black, 2 - b/w
    n += 1
    if (n > 9) :
        clearscreen()
        hideturtle()                    # clearscreen() initializes visibility of the turtle
        n = 0

Output 1 : bw = 1, penSize = 0

Output 2 : bw = 0, penSize = 0

Output 3 : bw = 1, penSize = 5

Output 4 : bw = 2, penSize = 10