Python-动态烟花【附完整源码】

烟花代码

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import pygamefrom random import randintfrom random import uniformfrom random import choiceimport  mathvector = 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 = 3class 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)          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 = 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 Falseclass 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)        self.trails = []          self.prev_posx = [-10] * 10          self.prev_posy = [-10] * 10                  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):         if 50 > self.life > 10:             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])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