Day 19

176 Goals: what we will make by the end of the day

177 Python Higher Oder Functions & Event Listeners

• 177 Python Higher Oder Functions & Event Listeners

178 Make an Etch-A-Sketch App

• 178 Make an Etch-A-Sketch App

#載入函式不然不能使用 random.randint(0, 10), 或是 Turtle(), Screen()
from turtle import Turtle, Screen
import random

is_race_on=False
screen = Screen()
screen.setup(width=500,height=500)
user_bet = screen.textinput(title="Make your bet", prompt="Which tutle will win the race? Enter a color: ")
colors = ["red", "orange", "yellow", "green", "blue", "purple"]
y_positions = [-70,-40,-10,20,50,80]
all_turtles = []

for turtle_index in range(0,6):
  new_turtle = Turtle(shape="turtle")
  new_turtle.penup()
  new_turtle.color(colors[turtle_index])
  new_turtle.goto(x=-230,y=y_positions[turtle_index])
  all_turtles.append(new_turtle)

if user_bet:
    is_race_on=True

#控制比賽結束了沒有
while is_race_on: 
		#一次看一隻Turtle，用 for loop, 如果 這隻超過 x 位置 230 就代表第一名產生了，以後的不用再跑了
    for turtle in all_turtles:
        if turtle.xcor() > 230:
             #冠軍產生，比賽結束
             is_race_on = False
             winning_color = turtle.pencolor ()
             if winning_color == user_bet: 
                print (f"You've won! The {winning_color} turtle is the winner!")
             else:
                print (f"You've lost! The {winning_color} turtle is the winner!")    
        #看這次的這一隻 turtle 可以走幾步。有點像大富翁的擲骰子 
        rand_distance = random.randint(0, 10)
        turtle.forward(rand_distance)
        
screen.exitonclick()