### Python 实现 3D 烟花动画 为了实现一个简单的 3D 烟花效果，可以利用 `Pygame` 和 `NumPy` 库来处理图形渲染和数值计算。下面是一个基本的例子： ```python import pygame import numpy as np from itertools import cycle # 初始化 Pygame 并设置屏幕参数 pygame.init() screen_width, screen_height = 800, 600 screen = pygame.display.set_mode((screen_width, screen_height)) clock = pygame.time.Clock() class Firework: def __init__(self): self.color = (np.random.randint(0, 255), np.random.randint(0, 255), np.random.randint(0, 255)) self.particles = [] self.create_particles(np.array([np.random.uniform(100, 700), screen_height])) def create_particles(self, origin): for _ in range(100): velocity = np.random.randn(2) * 2 lifetime = np.random.uniform(0.5, 2) self.particles.append([origin.copy(), velocity, lifetime]) def update(self): alive = False for particle in self.particles[:]: particle[2] -= 0.02 if particle[2] > 0: alive = True particle[0] += particle[1] gravity = np.array([0, 0.05]) resistance = -0.9 * particle[1] particle[1] = particle[1] + gravity + resistance size = int(max(0, min(4, particle[2] * 4))) pygame.draw.circle(screen, self.color, particle[0].astype(int), size) else: self.particles.remove(particle) return alive def main(): firework_cycle = cycle(range(5)) # 控制烟花发射频率 fireworks = [] running = True while running: for event in pygame.event.get(): if event.type == pygame.QUIT: running = False next(firework_cycle) if not next(firework_cycle): fireworks.append(Firework()) screen.fill((0, 0, 0)) still_alive = [] for fw in fireworks: if fw.update(): still_alive.append(fw) fireworks[:] = still_alive pygame.display.flip() clock.tick(60) if __name__ == "__main__": try: main() finally: pygame.quit() ``` 这段代码展示了如何通过粒子系统模拟烟花爆炸的效果[^1]。