import turtle
import time
turtle.speed(100)
turtle.screensize()
turtle.setup(1.0,1.0)

def clear_all():
    turtle.penup()
    turtle.goto(0, 0)
    turtle.color('white')
    turtle.pensize(800)
    turtle.pendown()
    turtle.setheading(0)
    turtle.fd(300)
    turtle.bk(600)

def go_to(x, y, state):
    turtle.pendown() if state else turtle.penup()
    turtle.goto(x, y)

def draw_line(length, angle, state):
    turtle.pensize(1)
    turtle.pendown()
    turtle.setheading(angle)
    turtle.fd(length)
    turtle.bk(length) if state else turtle.penup()
    turtle.penup()

def draw_feather(size):
    angle = 30  
    feather_num = size // 6  
    feather_length = size // 3  
    feather_gap = size // 10
    for i in range(feather_num):
        draw_line(feather_gap, angle + 180, False) 
        draw_line(feather_length, angle + 145, True)  
    draw_line(feather_length, angle + 145, False)
    draw_line(feather_num * feather_gap, angle, False)
    draw_line(feather_length, angle + 145 + 180, False)
    for i in range(feather_num):
        draw_line(feather_gap, angle + 180, False)  
        draw_line(feather_length, angle - 145, True)  
    draw_line(feather_length, angle - 145, False)
    draw_line(feather_num * feather_gap, angle, False)
    draw_line(feather_length, angle - 145 + 180, False)

def draw_heart(size):
    turtle.color('red', 'pink')
    turtle.pensize(2)
    turtle.pendown()
    turtle.setheading(150)
    turtle.begin_fill()
    turtle.fd(size)
    turtle.circle(size * -3.745, 45)
    turtle.circle(size * -1.431, 165)
    turtle.left(120)
    turtle.circle(size * -1.431, 165)
    turtle.circle(size * -3.745, 45)
    turtle.fd(size)
    turtle.end_fill()

def draw_arrow(size):
    angle = 30
    turtle.color('black')
    draw_feather(size)
    turtle.pensize(4)
    turtle.setheading(angle)
    turtle.pendown()
    turtle.fd(size * 2)

def arrow_heart(x, y, size):
    go_to(x, y, False)
    draw_heart(size * 1.15)
    turtle.setheading(-150)
    turtle.penup()
    turtle.fd(size * 2.2)
    draw_heart(size)
    turtle.penup()
    turtle.setheading(150)
    turtle.fd(size * 2.2)
    draw_arrow(size)

def draw_people(x, y):
    turtle.penup()
    turtle.goto(x, y)
    turtle.pendown()
    turtle.pensize(2)
    turtle.color('black')
    turtle.setheading(0)
    turtle.circle(60, 360)
    turtle.penup()
    turtle.setheading(90)
    turtle.fd(75)
    turtle.setheading(180)
    turtle.fd(20)
    turtle.pensize(4)
    turtle.pendown()
    turtle.circle(2, 360)
    turtle.setheading(0)
    turtle.penup()
    turtle.fd(40)
    turtle.pensize(4)
    turtle.pendown()
    turtle.circle(-2, 360)
    turtle.penup()
    turtle.goto(x, y)
    turtle.setheading(-90)
    turtle.pendown()
    turtle.fd(20)
    turtle.setheading(0)
    turtle.fd(35)
    turtle.setheading(60)
    turtle.fd(10)
    turtle.penup()
    turtle.goto(x, y)
    turtle.setheading(-90)
    turtle.pendown()
    turtle.fd(40)
    turtle.setheading(0)
    turtle.fd(35)
    turtle.setheading(-60)
    turtle.fd(10)
    turtle.penup()
    turtle.goto(x, y)
    turtle.setheading(-90)
    turtle.pendown()
    turtle.fd(60)
    turtle.setheading(-135)
    turtle.fd(60)
    turtle.bk(60)
    turtle.setheading(-45)
    turtle.fd(30)
    turtle.setheading(-135)
    turtle.fd(35)
    turtle.penup()

def page0():
    turtle.penup()
    turtle.goto(-350, 0)
    turtle.color('black')
    turtle.write('专属于WT的浪漫！', font=('新宋体', 60, 'normal'))
    time.sleep(1)

def page1():
    turtle.speed(100)
    draw_people(-250, 20)
    turtle.penup()
    turtle.goto(-150, -30)
    draw_heart(14)
    turtle.penup()
    turtle.goto(-20, -60)
    draw_heart(25)
    turtle.penup()
    turtle.goto(250, -100)
    draw_heart(45)
    turtle.hideturtle()
    time.sleep(1)

def page2():
    turtle.speed(100)
    turtle.penup()
    turtle.goto(-200, -200)
    turtle.color('green')
    turtle.pendown()
    turtle.write('Chen', font=('华文彩云', 50, 'normal'))
    turtle.penup()
    turtle.goto(0, -180)
    draw_heart(10)
    arrow_heart(20, -60, 51)
    turtle.penup()
    turtle.goto(70, -200)
    turtle.color('green')
    turtle.pendown()
    turtle.write('Ting', font=('华文彩云', 50, 'normal'))
    turtle.showturtle()


def main():
    turtle.setup(900, 500)
    page0()
    clear_all()
    page1()
    clear_all()
    page2()
    turtle.done()


main()