一、前言
🎄为了庆祝我们副山羊勒布朗詹姆斯，连续刷分6场30+，特此画一幅圣诞雪人，也祝福湖人12月26日圣诞大战，再我詹的带领下，刷分60+，圣诞之夜历史第一人。
二、创意名
Lebron James It’s for you！
三、效果展示
四、实现步骤
创建画布，设置背景，图片，设置雪球参数，风参数
创建画布中所有圆形对象
创建雪球
创建雪球移动函数
创建雪人
创建地面
五、编码实现
创建画布，设置背景，图片，设置雪球参数，风参数
import turtle import random import time width = height = 500 window = turtle.Screen() window.setup(width, height) window.bgcolor("sky blue") window.bgpic('jm.gif') window.title("Happy Holidays") snowball_rate = 1, 3 snowball_size = 5, 15 wind_change = 1, 5 max_wind = 3
turtle.bgpic函数只接受gif格式的图片
创建画布中所有圆形对象
def make_circle(turtle_name, x, y, size, colour): turtle_name.color(colour) turtle_name.penup() turtle_name.setposition(x, y) turtle_name.dot(size)
创建雪球
list_of_snowballs = [] def make_snowball(): snowball = turtle.Turtle() snowball.color("white") snowball.penup() snowball.setposition(random.randint(-2*width, width/2), height/2) snowball.hideturtle() snowball.size = random.randint(*snowball_size) list_of_snowballs.append(snowball)
创建雪球移动函数
def move_snowball(turtle_name, falling_speed=1, wind=0): turtle_name.clear() turtle_name.sety(turtle_name.ycor() - falling_speed) if wind: turtle_name.setx(turtle_name.xcor() + wind) turtle_name.dot(turtle_name.size)
创建雪人
# 雪人：身体 snowman = turtle.Turtle() x_position = 100 y_positions = 75, 0, -100 size = 75 for y in y_positions: make_circle(snowman, x_position, y, size, "white") size = size *1.5 # 雪人：按钮 button_seperation = 25 button_y_positions = [y_positions[1]-button_seperation, y_positions[1], y_positions[1]+button_seperation] for y in button_y_positions: make_circle(snowman, x_position, y, 10, "black") # 雪人：眼睛 y_offset = 10 x_seperation = 15 for x in x_position-x_seperation, x_position+x_seperation: make_circle(snowman, x, y_positions[0] + y_offset, 20, "green") make_circle(snowman, x, y_positions[0] + y_offset, 10, "black") # 雪人：鼻子 snowman.color("orange") snowman.setposition(x_position - 10, y_positions[0]-y_offset) snowman.shape("triangle") snowman.setheading(200) snowman.turtlesize(0.5, 2.5) window.tracer(0)
创建地面
grass = turtle.Turtle() grass.fillcolor("forest green") grass.penup() grass.setposition(-width/2, -height/2) grass.begin_fill() for _ in range(2): grass.forward(width) grass.left(90) grass.forward(70) grass.left(90) grass.end_fill() ground = turtle.Turtle() for x in range(int(-width/2), int(width/2), int(width/200)): make_circle(ground, x, -180, random.randint(5, 20), "white")
给画布添加文字
text = turtle.Turtle() text.color("red") text.penup() text.setposition(-100,170) text.write("Happy Holidays", font=("Apple Chancery", 30, "bold"), align="center") text.setposition(130, 140) text.color("dark green") text.write("Lebron", font=("Avenir", 30, "normal"), align="right") text.color("black") text.write("James", font=("Avenir", 30, "normal"), align="left") text.setx(50) text.write("It's for you！", font=("Apple Chancery", 20, "bold"), align="right") text.hideturtle()
定义画布的时间函数
time_delay = 0 start_time = time.time() wind = 0 wind_delay = 5 wind_timer = time.time() wind_step = 0.1 while True: if time.time() - start_time > time_delay: make_snowball() start_time = time.time() time_delay = random.randint(*snowball_rate)/10 for snowball in list_of_snowballs: move_snowball(snowball, wind=wind) if snowball.ycor() < -height/2: snowball.clear() list_of_snowballs.remove(snowball) if time.time() - wind_timer > wind_delay: wind += wind_step if wind >= max_wind: wind_step = -wind_step elif wind <= 0: wind_step = abs(wind_step) wind_timer = time.time() wind_delay = random.randint(*wind_change)/10 window.update() turtle.done()
