import random
from math import sin, cos, pi, log
from tkinter import *
CANVAS_WIDTH = 980 # 画布的宽
CANVAS_HEIGHT = 720 # 画布的高
CANVAS_CENTER_X = CANVAS_WIDTH / 2 # 画布中心的X轴坐标
CANVAS_CENTER_Y = CANVAS_HEIGHT / 2 # 画布中心的Y轴坐标
IMAGE_ENLARGE = 11 # 放大比例
# color list
HEART_COLOR_LIST = ["#ff4d4d", "#ff1a1a", "#ff6666", "#ff9999", "#ffcccc"] # 柔和红
# HEART_COLOR_LIST = ['#A1CAF1', '#ADD8E6', '#B3E5FC', '#B0C4DE', '#E0FFFF'] # 柔和蓝
# HEART_COLOR_LIST = ['#8B4513', '#CD853F', '#556B2F', '#FFD700', '#DAA520'] # 土黄
# HEART_COLOR_LIST = ['#DA70D6', '#EE82EE', '#DDA0DD', '#BA55D3', '#9370DB'] # 中兰花紫
# HEART_COLOR_LIST = ['#6A5ACD', '#7B68EE', '#9370DB', '#8A2BE2', '#4B0082'] # 暗紫
# HEART_COLOR_LIST = ['#B0E0E6', '#6495ED', '#87CEEB', '#87CEFA', '#4169E1'] # 中蓝
# HEART_COLOR_LIST = ['#66CDAA', '#40E0D0', '#48D1CC', '#20B2AA', '#008080'] # 中绿
# HEART_COLOR_LIST = ['#BDB76B', '#808000', '#9ACD32', '#6B8E23', '#556B2F'] # 嫩绿
def heart_function(t, shrink_ratio: float = IMAGE_ENLARGE):
"""
爱心函数生成器
:param shrink_ratio: 放大比例
:param t: 参数
:return: 坐标
"""
# 基础函数size
x = 16 * (sin(t) ** 3)
y = -(13 * cos(t) - 5 * cos(2 * t) - 2 * cos(3 * t) - cos(4 * t))
# 倒过来的
# 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=1.15):
"""
随机内部扩散
:param x: 原x
:param y: 原y
:param beta: 强度
:return: 新坐标
"""
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):
"""
抖动
:param x: 原x
:param y: 原y
:param ratio: 比例
:return: 新坐标
"""
force = -1 / (((x - CANVAS_CENTER_X) ** 2 + (y - CANVAS_CENTER_Y) ** 2) ** 0.6) # 这个参数...
dx = ratio * force * (x - CANVAS_CENTER_X)
dy = ratio * force * (y - CANVAS_CENTER_Y)
return x - dx, y - dy
def curve(p):
"""
自定义曲线函数，调整跳动周期
:param p: 参数
:return: 正弦
"""
return 2 * (2 * sin(4 * p)) / (2 * pi)
class Heart:
"""
爱心类，负责生成和渲染爱心形状。
"""
def __init__(self, generate_frame=20):
"""
初始化爱心类。
:param generate_frame: 生成的帧数，用于控制动画的流畅度。
"""
self._points = set() # 存储爱心的基本点坐标
self._edge_diffusion_points = set() # 存储爱心边缘扩散的点坐标
self._center_diffusion_points = set() # 存储爱心中心扩散的点坐标
self.all_points = {} # 存储每帧的点坐标
self.build(2000) # 构建爱心的基本点
self.random_halo = 1000 # 随机光环的数量
self.generate_frame = generate_frame # 设置生成帧数
for frame in range(generate_frame):
self.calc(frame) # 计算每帧的点坐标
def build(self, number):
"""
构建爱心的基本点和扩散点。
:param number: 生成的基本点数量。
"""
# 生成爱心的基本点
for _ in range(number):
t = random.uniform(0, 2 * pi) # 随机参数
x, y = heart_function(t)
self._points.add((x, y))
# 生成爱心边缘扩散的点
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))
# 生成爱心中心扩散的点
point_list = list(self._points)
for _ in range(6000):
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):
"""
计算点的位置，添加随机抖动效果。
:param x: 原始x坐标
:param y: 原始y坐标
:param ratio: 缩放比例
:return: 新的坐标
"""
# 计算缩放比例和抖动
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):
"""
计算每帧的点坐标。
:param generate_frame: 当前帧数
"""
ratio = 10 * curve(generate_frame / 10 * pi) # 计算缩放比例
# 计算光环的半径和数量
halo_radius = int(4 + 6 * (1 + curve(generate_frame / 10 * pi)))
halo_number = int(3000 + 6000 * abs(curve(generate_frame / 10 * pi) ** 2))
all_points = []
# 生成光环点
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))
# 处理爱心轮廓点
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))
# 处理边缘扩散点
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))
# 处理中心扩散点
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):
"""
在画布上渲染爱心。
:param render_canvas: 画布对象
:param render_frame: 当前帧数
"""
for x, y, size in self.all_points[render_frame % self.generate_frame]:
# 随机选择颜色并绘制圆形
render_canvas.create_oval(x, y, x + size, y + size, width=0, fill=random.choice(HEART_COLOR_LIST))
def draw(main: Tk, render_canvas: Canvas, render_heart: Heart, render_frame=0):
"""
绘制爱心动画。
:param main: 主窗口对象
:param render_canvas: 画布对象
:param render_heart: 爱心对象
:param render_frame: 当前帧数
"""
render_canvas.delete('all') # 清除画布上的所有内容
render_heart.render(render_canvas, render_frame) # 渲染当前帧的爱心
main.after(99, draw, main, render_canvas, render_heart, render_frame + 1) # 设置下一帧的绘制
if __name__ == '__main__':
root = Tk() # Tk
root.title("艳之心") # 窗口标题
canvas = Canvas(root, bg='black', height=CANVAS_HEIGHT, width=CANVAS_WIDTH)
canvas.pack()
heart = Heart()
draw(root, canvas, heart) # 开始绘制爱心动画
root.mainloop() # 进入Tkinter事件循环
更多源码：https://ms3.ishenglu.com/
扫一扫
被折叠的 条评论
为什么被折叠?
到【灌水乐园】发言
