Python|Python 浪漫烟花实现代码全解 Python浪漫烟花实现代码全解

1 旖旎风景
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马上虎年了，也是我的生肖年，很激动!（不小心暴露了年龄，哈哈哈......),这里先给大家拜年啦，祝大家虎年快乐，虎年爆富！

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首先一首原创诗分享给大家，然后欣赏一下烟花代码，用Python实现的。
魏巍中华龙在飞,能驭其者方可主沉浮,今夕新年，晚风过威奢, 请卿听我歌:
新年傲啸
烟花冲破九霄,
正如神雕在傲啸;
黑夜捅了它一刀;
五彩的血溅在黑夜外套;
于是傲啸浸透夜的衣角;
只愿与卿震响九霄!
龙吟虎啸!

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2 请卿赏之
3 Python代码实现

#=================导入包===================='''导入pygame,Python Pygame 是一款专门为开发和设计 2D 电子游戏而生的软件包，它支 Windows、Linux、Mac OS 等操作系统，具有良好的跨平台性。'''import pygamefrom random import randint, uniform, choiceimport math #===========首先设置全局变量====================vector = pygame.math.Vector2# 重力变量gravity = vector(0, 0.3)# 控制窗口的大小DISPLAY_WIDTH = DISPLAY_HEIGHT = 800 # 颜色选项trail_colours = [(45, 45, 45), (60, 60, 60), (75, 75, 75), (125, 125, 125), (150, 150, 150)]dynamic_offset = 1static_offset = 3#=======Firework : 整体部分；================class Firework:def __init__(self):# 随机颜色self.colour = (randint(0, 255), randint(0, 255), randint(0, 255))self.colours = ((randint(0, 255), randint(0, 255), randint(0, 255)),(randint(0, 255), randint(0, 255), randint(0, 255)),(randint(0, 255), randint(0, 255), randint(0, 255)))self.firework = Particle(randint(0, DISPLAY_WIDTH), DISPLAY_HEIGHT, True,self.colour)# Creates the firework particleself.exploded = Falseself.particles = []self.min_max_particles = vector(100, 225) def update(self, win):# 每帧调用if not self.exploded:self.firework.apply_force(gravity)self.firework.move()for tf in self.firework.trails:tf.show(win) self.show(win) if self.firework.vel.y >= 0:self.exploded = Trueself.explode()else:for particle in self.particles:particle.apply_force(vector(gravity.x + uniform(-1, 1) / 20, gravity.y / 2 + (randint(1, 8) / 100)))particle.move()for t in particle.trails:t.show(win)particle.show(win) def explode(self):# amount 数量amount = randint(self.min_max_particles.x, self.min_max_particles.y)for i in range(amount):self.particles.append(Particle(self.firework.pos.x, self.firework.pos.y, False, self.colours)) def show(self, win):pygame.draw.circle(win, self.colour, (int(self.firework.pos.x), int(self.firework.pos.y)), self.firework.size) def remove(self):if self.exploded:for p in self.particles:if p.remove is True:self.particles.remove(p) if len(self.particles) == 0:return Trueelse:return False #================Particle：烟花粒子（包含轨迹）======================class Particle:def __init__(self, x, y, firework, colour):self.firework = fireworkself.pos = vector(x, y)self.origin = vector(x, y)self.radius = 20self.remove = Falseself.explosion_radius = randint(5, 18)self.life = 0self.acc = vector(0, 0)# trail variablesself.trails = []# stores the particles trail objectsself.prev_posx = [-10] * 10# stores the 10 last positionsself.prev_posy = [-10] * 10# stores the 10 last positions if self.firework:self.vel = vector(0, -randint(17, 20))self.size = 5self.colour = colourfor i in range(5):self.trails.append(Trail(i, self.size, True))else:self.vel = vector(uniform(-1, 1), uniform(-1, 1))self.vel.x *= randint(7, self.explosion_radius + 2)self.vel.y *= randint(7, self.explosion_radius + 2)# 向量self.size = randint(2, 4)self.colour = choice(colour)# 5 个 tails总计for i in range(5):self.trails.append(Trail(i, self.size, False)) def apply_force(self, force):self.acc += force def move(self):if not self.firework:self.vel.x *= 0.8self.vel.y *= 0.8self.vel += self.accself.pos += self.velself.acc *= 0 if self.life == 0 and not self.firework:# 检查粒子的爆炸范围distance = math.sqrt((self.pos.x - self.origin.x) ** 2 + (self.pos.y - self.origin.y) ** 2)if distance > self.explosion_radius:self.remove = True self.decay() self.trail_update() self.life += 1 def show(self, win):pygame.draw.circle(win, (self.colour[0], self.colour[1], self.colour[2], 0), (int(self.pos.x), int(self.pos.y)),self.size) def decay(self):# random decay of the particlesif 50 > self.life > 10:# early stage their is a small chance of decayran = randint(0, 30)if ran == 0:self.remove = Trueelif self.life > 50:ran = randint(0, 5)if ran == 0:self.remove = True def trail_update(self):self.prev_posx.pop()self.prev_posx.insert(0, int(self.pos.x))self.prev_posy.pop()self.prev_posy.insert(0, int(self.pos.y)) for n, t in enumerate(self.trails):if t.dynamic:t.get_pos(self.prev_posx[n + dynamic_offset], self.prev_posy[n + dynamic_offset])else:t.get_pos(self.prev_posx[n + static_offset], self.prev_posy[n + static_offset]) #=======Trail：烟花轨迹，本质上是一个点。创建 Trail 类，定义 show 方法绘制轨迹、get_pos实时获取轨迹坐标====class Trail:def __init__(self, n, size, dynamic):self.pos_in_line = nself.pos = vector(-10, -10)self.dynamic = dynamic if self.dynamic:self.colour = trail_colours[n]self.size = int(size - n / 2)else:self.colour = (255, 255, 200)self.size = size - 2if self.size < 0:self.size = 0 def get_pos(self, x, y):self.pos = vector(x, y) def show(self, win):pygame.draw.circle(win, self.colour, (int(self.pos.x), int(self.pos.y)), self.size) def update(win, fireworks):for fw in fireworks:fw.update(win)if fw.remove():fireworks.remove(fw) pygame.display.update() #=======================主函数=======================def main():pygame.init()pygame.font.init()pygame.display.set_caption("祝您新年快乐")# 标题background = pygame.image.load("./5.png")# 背景sound_wav = pygame.mixer.music.load("2.mp3")pygame.mixer.music.play() pygame.init()# 加载背景音乐'''pygame.mixer.music.load("./res/音乐文件名")# 循环播放背景音乐pygame.mixer.music.play(-1)# 停止背景音乐pygame.mixer.music.stop()# 加载音效boom_sound = pygame.mixer.Sound("./res/音效名")# 播放音效boom_sound.play()boom_sound.stop()myfont = pygame.font.Font("simkai.TTF", 80)myfont1 = pygame.font.Font("simkai.ttf", 30)testsurface = myfont.render("虎虎生威", False, (0, 0, 0), (220, 20, 60))testsurface1 = myfont1.render("", False, (251, 59, 85))''' # pygame.image.load("")win = pygame.display.set_mode((DISPLAY_WIDTH, DISPLAY_HEIGHT))# win.blit(background)clock = pygame.time.Clock() fireworks = [Firework() for i in range(2)]# create the first fireworksrunning = True while running:clock.tick(60)for event in pygame.event.get():if event.type == pygame.QUIT:running = Falseif event.type == pygame.KEYDOWN:# Change game speed with number keysif event.key == pygame.K_1:# 按下 1fireworks.append(Firework())if event.key == pygame.K_2:# 按下 2 加入10个烟花for i in range(10):fireworks.append(Firework())if event.key == pygame.K_3:# 按下 3 加入100个烟花for i in range(100):fireworks.append(Firework())win.fill((20, 20, 30))# draw background#win.blit(background, (0, 0))#win.blit(testsurface, (200, 30))#win.blit(testsurface1, (520, 80)) if randint(0, 20) == 1:# 创建新的烟花 fireworks.append(Firework()) update(win, fireworks)pygame.quit()quit() if __name__ == 'main':main()

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