旖旎风景

#===========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 particle self.exploded = False self.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 = True self.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 True else: return False

#================Particle：烟花粒子（包含轨迹）======================class Particle: def __init__(self, x, y, firework, colour): self.firework = firework self.pos = vector(x, y) self.origin = vector(x, y) self.radius = 20 self.remove = False self.explosion_radius = randint(5, 18) self.life = 0 self.acc = vector(0, 0) # trail variables self.trails = [] # stores the particles trail objects self.prev_posx = [-10] * 10 # stores the 10 last positions self.prev_posy = [-10] * 10 # stores the 10 last positions

if self.firework: self.vel = vector(0, -randint(17, 20)) self.size = 5 self.colour = colour for 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 *= 0.8 self.vel.y *= 0.8 self.vel += self.acc self.pos += self.vel self.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 particles if 50 > self.life > 10: # early stage their is a small chance of decay ran = randint(0, 30) if ran == 0: self.remove = True elif 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 = n self.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 - 2 if 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 = False if event.type == pygame.KEYDOWN: # Change game speed with number keys if event.key == pygame.K_1: # 按下 1 fireworks.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()