Table of contents
1.Preliminary preparation
2. Code content
3. Effect display
1.Preliminary preparation
1.1. Because background music is required, background music needs to be prepared. Here we choose confession balloons.
Note, it is best to put the background music and .py file in the same folder.
1.2, the tool used is pycharm, so you need to configure Python environment variables and install pycharm.
1.3, two third-party libraries are used here, tkinter and pygame. Use pip install to install.
Click Terminal under pycharm.
Then enter pip install tkinter, press Enter and wait for the installation to complete, and then pip install pygame.
2. Code content
import random
from math import sin, cos, pi, log
from tkinter import *
import pygame.mixer
CANVAS_WIDTH = 640
CANVAS_HEIGHT = 480
CANVAS_CENTER_X = CANVAS_WIDTH / 2
CANVAS_CENTER_Y = CANVAS_HEIGHT / 2
IMAGE_ENLARGE = 11
HEART_COLOR = "#FF99CC"
def center_window(root, width, height):
screenwidth = root.winfo_screenwidth() # 获取显示屏宽度
screenheight = root.winfo_screenheight() # 获取显示屏高度
size = '%dx%d+%d+%d' % (width, height, (screenwidth - width) /
2, (screenheight - height) / 2) # 设置窗口居中参数
root.geometry(size) # 让窗口居中显示
def heart_function(t, shrink_ratio: float = IMAGE_ENLARGE):
x = 16 * (sin(t) ** 3)
y = -(13 * cos(t) - 5 * cos(2 * t) - 2 * cos(3 * t) - cos(4 * t))
# 放大
x *= shrink_ratio
y *= shrink_ratio
# 移到画布中央
x += CANVAS_CENTER_X
y += CANVAS_CENTER_Y
return int(x), int(y)
def scatter_inside(x, y, beta=0.15):
ratio_x = - beta * log(random.random())
ratio_y = - beta * log(random.random())
dx = ratio_x * (x - CANVAS_CENTER_X)
dy = ratio_y * (y - CANVAS_CENTER_Y)
return x - dx, y - dy
def shrink(x, y, ratio):
force = -1 / (((x - CANVAS_CENTER_X) ** 2 +
(y - CANVAS_CENTER_Y) ** 2) ** 0.6)
dx = ratio * force * (x - CANVAS_CENTER_X)
dy = ratio * force * (y - CANVAS_CENTER_Y)
return x - dx, y - dy
def curve(p):
return 2 * (2 * sin(4 * p)) / (2 * pi)
class Heart:
def __init__(self, generate_frame=20):
self._points = set() # 原始爱心坐标集合
self._edge_diffusion_points = set() # 边缘扩散效果点坐标集合
self._center_diffusion_points = set() # 中心扩散效果点坐标集合
self.all_points = {} # 每帧动态点坐标
self.build(2000)
self.random_halo = 1000
self.generate_frame = generate_frame
for frame in range(generate_frame):
self.calc(frame)
def build(self, number):
for _ in range(number):
t = random.uniform(0, 2 * pi)
x, y = heart_function(t)
self._points.add((x, y))
# 爱心内扩散
for _x, _y in list(self._points):
for _ in range(3):
x, y = scatter_inside(_x, _y, 0.05)
self._edge_diffusion_points.add((x, y))
# 爱心内再次扩散
point_list = list(self._points)
for _ in range(4000):
x, y = random.choice(point_list)
x, y = scatter_inside(x, y, 0.17)
self._center_diffusion_points.add((x, y))
@staticmethod
def calc_position(x, y, ratio):
force = 1 / (((x - CANVAS_CENTER_X) ** 2 +
(y - CANVAS_CENTER_Y) ** 2) ** 0.520)
dx = ratio * force * (x - CANVAS_CENTER_X) + random.randint(-1, 1)
dy = ratio * force * (y - CANVAS_CENTER_Y) + random.randint(-1, 1)
return x - dx, y - dy
def calc(self, generate_frame):
ratio = 10 * curve(generate_frame / 10 * pi)
halo_radius = int(4 + 6 * (1 + curve(generate_frame / 10 * pi)))
halo_number = int(
3000 + 4000 * abs(curve(generate_frame / 10 * pi) ** 2))
all_points = []
# 光环
heart_halo_point = set()
for _ in range(halo_number):
t = random.uniform(0, 2 * pi)
x, y = heart_function(t, shrink_ratio=11.6)
x, y = shrink(x, y, halo_radius)
if (x, y) not in heart_halo_point:
heart_halo_point.add((x, y))
x += random.randint(-14, 14)
y += random.randint(-14, 14)
size = random.choice((1, 2, 2))
all_points.append((x, y, size))
# 轮廓
for x, y in self._points:
x, y = self.calc_position(x, y, ratio)
size = random.randint(1, 3)
all_points.append((x, y, size))
# 内容
for x, y in self._edge_diffusion_points:
x, y = self.calc_position(x, y, ratio)
size = random.randint(1, 2)
all_points.append((x, y, size))
self.all_points[generate_frame] = all_points
for x, y in self._center_diffusion_points:
x, y = self.calc_position(x, y, ratio)
size = random.randint(1, 2)
all_points.append((x, y, size))
self.all_points[generate_frame] = all_points
def render(self, render_canvas, render_frame):
for x, y, size in self.all_points[render_frame % self.generate_frame]:
render_canvas.create_rectangle(
x, y, x + size, y + size, width=0, fill=HEART_COLOR)
def draw(main: Tk, render_canvas: Canvas, render_heart: Heart, render_frame=0):
render_canvas.delete('all')
render_heart.render(render_canvas, render_frame)
main.after(160, draw, main, render_canvas, render_heart, render_frame + 1)
if __name__ == '__main__':
root = Tk()
root.title("爱心")
center_window(root, CANVAS_WIDTH, CANVAS_HEIGHT) # 窗口居中显示
canvas = Canvas(root, bg='black', height=CANVAS_HEIGHT, width=CANVAS_WIDTH)
canvas.pack()
heart = Heart()
draw(root, canvas, heart)
# 初始化音频
pygame.mixer.init()
pygame.mixer.music.load("告白气球.mp3") # 加载音乐文件
pygame.mixer.music.set_volume(0.5) # 设置音量（0.0-1.0）
pygame.mixer.music.play(-1, start=42) # 从第是四十二秒开始循环播放
Label(root, text="你想要替换的文字", bg="black", fg="#FF99CC", font="Helvetic 20 bold").place(
relx=.5, rely=.5, anchor=CENTER)
root.mainloop()
After if __name__ == '__main__':, you can replace the text you want, modify the music, the playback segment of the music, and whether to repeat it.
3. Effect display
