Python實(shí)現(xiàn)浪漫的煙花特效
現(xiàn)在很多地方都不能放煙花了，既然看不到，
那作為程序猿的我們還不能自己用代碼做一個(gè)嗎？
今天就帶大家用代碼做一個(gè)煙花特效吧。
pygame介紹
-
關(guān)于Pygame的基本信息，pygame是什么，誰(shuí)會(huì)被Pygame吸引，并且在哪里找到它。
-
Pygame是被設(shè)計(jì)用來(lái)寫(xiě)游戲的python模塊集合，Pygame是在優(yōu)秀的SDL庫(kù)之上開(kāi)發(fā)的功能性包。使用python可以導(dǎo)入pygame來(lái)開(kāi)發(fā)具有全部特性的游戲和多媒體軟件，Pygame是極度輕便的并且可以運(yùn)行在幾乎所有的平臺(tái)和操作系統(tǒng)上。Pygame包已經(jīng)被下載過(guò)成千上萬(wàn)次，并且也被訪問(wèn)過(guò)成千上萬(wàn)次。
-
Pygame是免費(fèi)的，發(fā)行遵守GPL，你可以利用它開(kāi)發(fā)開(kāi)源的、免費(fèi)的、免費(fèi)軟件、共享件、還有商業(yè)軟件等等。如果想要看到關(guān)于以上全部詳細(xì)信息請(qǐng)看GPL .
-
對(duì)于初學(xué)者可以查看 line-by-line chimp turtorial,或者是對(duì)python程序員查看第17~20章 通過(guò)python開(kāi)發(fā)屬于你自己的電腦游戲
環(huán)境準(zhǔn)備
這里使用到的庫(kù)有：pygame（用于游戲的編寫(xiě)）、random（用于產(chǎn)生隨機(jī)范圍數(shù)）、math（用于數(shù)學(xué)計(jì)算），期中pygame屬于第三方模塊，如果未安裝該模塊可以使用命令：pip install pygame 進(jìn)行安裝。
pip install pygame
代碼編寫(xiě)
全局變量：
vector = pygame.math.Vector2
# 重力變量
gravity = vector(0, 0.3)
# 控制窗口的大小
DISPLAY_WIDTH = DISPLAY_HEIGHT = 800
# 顏色選項(xiàng)
trail_colours = [(45, 45, 45), (60, 60, 60), (75, 75, 75), (125, 125, 125), (150, 150, 150)]
dynamic_offset = 1
static_offset = 3
Firework : 整體部分
class Firework:
def __init__(self):
# 隨機(jī)顏色
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): # 每幀調(diào)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 數(shù)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：煙花粒子（包含軌跡）
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 個(gè) tails總計(jì)
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: # 檢查粒子的爆炸范圍
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：煙花軌跡，本質(zhì)上是一個(gè)點(diǎn) 。創(chuàng)建 Trail 類，定義 show 方法繪制軌跡 、get_pos 實(shí)時(shí)獲取軌跡坐標(biāo)
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()
主函數(shù)部分：
def main():
pygame.init()
pygame.font.init()
pygame.display.set_caption("祝您新年快樂(lè)") # 標(biāo)題
background = pygame.image.load("./5.png") # 背景
sound_wav = pygame.mixer.music.load("2.mp3")
pygame.mixer.music.play()
pygame.init()
# 加載背景音樂(lè)
'''pygame.mixer.music.load("./res/音樂(lè)文件名")
# 循環(huán)播放背景音樂(lè)
pygame.mixer.music.play(-1)
# 停止背景音樂(lè)
pygame.mixer.music.stop()
# 加載音效
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 fireworks
running = 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個(gè)煙花
for i in range(10):
fireworks.append(Firework())
if event.key == pygame.K_3: # 按下 3 加入100個(gè)煙花
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: # 創(chuàng)建新的煙花
fireworks.append(Firework())
update(win, fireworks)
pygame.quit()
quit()
運(yùn)行：
if __name__ == 'main':
main()
效果：
關(guān)于Python的技術(shù)儲(chǔ)備
在這里給大家分享一些免費(fèi)的課程供大家學(xué)習(xí)，下面是課程里面的截圖，掃描最下方的二維碼就能全部領(lǐng)取
2.學(xué)習(xí)軟件
工欲善其事必先利其器。學(xué)習(xí)Python常用的開(kāi)發(fā)軟件都在這里了，給大家節(jié)省了很多時(shí)間。
3.學(xué)習(xí)資料
4.實(shí)戰(zhàn)資料
實(shí)踐是檢驗(yàn)真理的唯一標(biāo)準(zhǔn)。這里的壓縮包可以讓你再閑暇之余幫你提升你的個(gè)人能力。
5.視頻課程
文章來(lái)源：http://www.zghlxwxcb.cn/news/detail-714627.html
好啦今天的分享就到這里結(jié)束了，快樂(lè)的時(shí)光總是短暫呢，想學(xué)習(xí)更多課程的小伙伴不要著急，有更多驚喜哦~
?
文章來(lái)源地址http://www.zghlxwxcb.cn/news/detail-714627.html
到了這里，關(guān)于Python煙花代碼，用Python制作一個(gè)煙花特效的文章就介紹完了。如果您還想了解更多內(nèi)容，請(qǐng)?jiān)谟疑辖撬阉鱐OY模板網(wǎng)以前的文章或繼續(xù)瀏覽下面的相關(guān)文章，希望大家以后多多支持TOY模板網(wǎng)！
![很合適新手入門(mén)使用的Python游戲開(kāi)發(fā)包pygame實(shí)例教程-01[開(kāi)發(fā)環(huán)境配置與第一個(gè)界面]](https://imgs.yssmx.com/Uploads/2024/01/823365-1.gif)
