### Python动态爱心烟花效果实现 以下是基于Pygame库的一个简单实现方案，用于创建动态爱心形状的烟花效果。代码通过模拟烟花爆炸并生成随机颜色和大小的心形图案来展示视觉效果。 ```python import pygame from random import randint, uniform import math # 初始化 Pygame 和屏幕设置 pygame.init() WIDTH, HEIGHT = 800, 600 win = pygame.display.set_mode((WIDTH, HEIGHT)) pygame.display.set_caption("Dynamic Heart Fireworks") BLACK = (0, 0, 0) class Particle: def __init__(self, x, y, color): self.x = x self.y = y self.color = color self.size = uniform(2, 7) self.angle = uniform(0, 2 * math.pi) self.speed = uniform(0.5, 3) self.gravity = 0.1 self.life = 40 def update(self): self.speed += self.gravity self.x += self.speed * math.cos(self.angle) self.y -= self.speed * math.sin(self.angle) self.life -= 1 def draw(self): heart_points = [] t_values = [t / 10 for t in range(-15, 16)] for t in t_values: r = 15 * (1 - abs(t) ** 0.5) * (abs(math.sin(t)) ** 0.3) px = int(r * math.cos(t) * self.size + self.x) py = int(-r * math.sin(t) * self.size + self.y) heart_points.append((px, py)) if len(heart_points) >= 3: pygame.draw.polygon(win, self.color, heart_points) class Firework: def __init__(self): self.x = randint(0, WIDTH) self.y = HEIGHT self.color = (randint(0, 255), randint(0, 255), randint(0, 255)) self.speed = uniform(4, 6) self.exploded = False self.particles = [] def update(self): if not self.exploded: self.y -= self.speed if self.y <= 0 or randint(0, 100) < 5: self.explode() for particle in self.particles[:]: particle.update() if particle.life <= 0: self.particles.remove(particle) def explode(self): self.exploded = True for _ in range(randint(50, 100)): self.particles.append(Particle(self.x, self.y, self.color)) def draw(self): if not self.exploded: pygame.draw.circle(win, self.color, (int(self.x), int(self.y)), 5) for particle in self.particles: particle.draw() def main(): fireworks = [] running = True clock = pygame.time.Clock() while running: clock.tick(60) win.fill(BLACK) for event in pygame.event.get(): if event.type == pygame.QUIT: running = False if len(fireworks) < 10 and randint(0, 100) < 2: fireworks.append(Firework()) for firework in fireworks[:]: firework.update() firework.draw() if firework.exploded and len(firework.particles) == 0: fireworks.remove(firework) pygame.display.flip() pygame.quit() if __name__ == "__main__": main() ``` #### 关键点说明 - 使用 `Particle` 类定义单个粒子的行为，包括位置、速度、角度以及生命周期[^1]。 - 定义了一个心形函数 `(x,y)` 的参数方程，并将其应用于每个粒子的位置计算中[^2]。 - 主循环负责管理事件、更新状态和渲染画面，确保程序流畅运行[^1]。