运行截图
什么？你说你看不清烟花？那我换一种颜色，请点开看。
实现过程
准备工作
使用语言和框架：python、pygame。
安装pygame:
pip install -i https://pypi.tuna.tsinghua.edu.cn/simple/ --trusted-host pypi.tuna.tsinghua.edu.cn pygame
你需要知道的基础知识
首先，pygame渲染是同步的，所以同屏渲染的点过多之后，就会造成卡顿的情况。
其次，pygame的代码逻辑是，周期性渲染一系列的屏，从而产生连续的动画。
你需要掌握的框架基础知识：
初始化过程
import pygame pygame.init() pygame.mixer.init() pygame.font.init()
获取字体
myfont = pygame.font.SysFont('simHei', 30)
textsurface = myfont.render(a[i], False, random_color(150, 255))
screen.blit(textsurface, (80, 30))
画圈
pygame.draw.circle(screen, (snow_list[i][4], snow_list[i][5], snow_list[i][6]), snow_list[i][:2],
snow_list[i][3] - 3)
加载背景音乐
screen = pygame.display.set_mode(bg_size)
pygame.display.set_caption("新年快乐")
bg = pygame.image.load(bg_img)
pygame.mixer.music.load('D:\\CloudMusic\\小时姑娘 - 霞光-《精灵世纪》片尾曲.mp3')
核心代码
基础架子
首先，需要实现一个基础的事件循环的架子，如下：
def main():
global show_n
global fk_list
bg_size = (WIN_W, WIN_H)
screen = pygame.display.set_mode(bg_size)
pygame.display.set_caption("新年快乐")
pygame.mixer.music.load('D:\\CloudMusic\\小时姑娘 - 霞光-《精灵世纪》片尾曲.mp3')
font_values = ['新年快乐']
grand_has = set()
clock = pygame.time.Clock()
while True:
if not pygame.mixer.music.get_busy():
pygame.mixer.music.play()
for event in pygame.event.get():
if event.type == pygame.QUIT:
exit()
screen.fill((0, 0, 0))
... ...
pygame.display.update()
time_passed = clock.tick(50)
if __name__ == '__main__':
main()
下雪的过程
现在，需要实现下雪的过程，首先，考虑定义定义一堆初始化的下雪点
def init_xue(bg_size):
snow_list = []
for i in range(200):
x_site = random.randrange(0, bg_size[0]) # 雪花圆心位置
y_site = random.randrange(0, bg_size[1]) # 雪花圆心位置
X_shift = random.randint(-1, 1) # x 轴偏移量
radius = random.randint(4, 6) # 半径和 y 周下降量
xxxxx = random_color(150, 255)
snow_list.append([x_site, y_site, X_shift, radius, 255, 255, 255])
return snow_list
然后实现渲染雪的过程
def draw_xue(snow_list: [], screen, bg_size: [], grand_has: set, grand_list: []):
# 雪花列表循环
# todo 空中的雪
for i in range(len(snow_list)):
# 绘制雪花，颜色、位置、大小
pygame.draw.circle(screen, (snow_list[i][4], snow_list[i][5], snow_list[i][6]), snow_list[i][:2],
snow_list[i][3] - 3)
# 移动雪花位置（下一次循环起效）
snow_list[i][0] += snow_list[i][2]
snow_list[i][1] += snow_list[i][3]
# 如果雪花落出屏幕，重设位置
if snow_list[i][1] > bg_size[1]:
# tmp = []
snow_list[i][1] = random.randrange(-50, -10)
snow_list[i][0] = random.randrange(0, bg_size[0])
x = snow_list[i][0]
y = bg_size[1]
while (grand_has.__contains__(x * 10000 + y)):
y = y - snow_list[i][3]
grand_has.add(x * 10000 + y)
grand_list.append(
[x, y, snow_list[i][2], snow_list[i][3], snow_list[i][4], snow_list[i][5],
snow_list[i][6]])
集成到上面的架子中，效果如下：
不过目前的下雪没有质感，可以考虑在底部堆一些雪，只需要在雪落到地上做特判即可。
雪落到地上堆起来的过程
在前面的下雪过程的代码中，我们维护了一个Grand_list的数组，目的就是维护堆雪的效果
min_height = 100000
# todo 地上的积雪
for i in range(len(grand_list)):
if grand_list[i][0] < 375:
min_height = min(min_height, grand_list[i][1])
然后进入维护程序：
draw_xue(snow_list, screen, bg_size, grand_has, grand_list)
最后再将雪画出来
for i in range(len(grand_list)):
pygame.draw.circle(screen, (grand_list[i][4], grand_list[i][5], grand_list[i][6]), grand_list[i][:2],
grand_list[i][3] - 3)
效果图如上。
实现烟花的过程
首先定义出烟花类：
class Fireworks():
is_show = False
x, y = 0, 0
vy = 0
p_list = []
color = [0, 0, 0]
v = 0
def __init__(self, x, y, vy, n=300, color=[0, 255, 0], v=10):
self.x = x
self.y = y
self.vy = vy
self.color = color
self.v = v
for i in range(n):
self.p_list.append([random.random() * 2 * math.pi, 0, v * math.pow(random.random(), 1 / 3)])
def run(self):
global show_n
for p in self.p_list:
p[1] = p[1] + (random.random() * 0.6 + 0.7) * p[2]
p[2] = p[2] * 0.97
if p[2] < 1.2:
self.color[0] *= 0.9999
self.color[1] *= 0.9999
self.color[2] *= 0.9999
if max(self.color) < 10 or self.y > WIN_H + p[1]:
show_n -= 1
self.is_show = False
break
self.vy += 10 * t1
self.y += self.vy * t1
然后，我们需要画出烟花释放前上升的过程点，这部分与下雪的初始化差不多。
def init_yanhua(bg_size):
yanhua_list = []
for i in range(5):
x_site = random.randrange(0, WIN_W) # 雪花圆心位置
y_site = WIN_H # 雪花圆心位置
X_shift = 0 # x 轴偏移量
radius = random.randint(6, 10) # 半径和 y 周上升降量
xxxxx = random_color(150, 255)
red = xxxxx[0]
green = xxxxx[1]
blue = xxxxx[2]
yanhua_list.append([x_site, y_site, X_shift, radius, red, green, blue])
return yanhua_list
然后是画上升过程
def draw_yanhua(yanhua_list: [], screen, bg_size: []):
global fk_list
for i in range(len(yanhua_list)):
# 绘制雪花，颜色、位置、大小
pygame.draw.circle(screen, (yanhua_list[i][4], yanhua_list[i][5], yanhua_list[i][6]), yanhua_list[i][:2],
yanhua_list[i][3] - 3)
yanhua_list[i][0] += yanhua_list[i][2]
yanhua_list[i][1] -= yanhua_list[i][3]
if yanhua_list[i][1] <= 0:
# tmp = []
yanhua_list[i][1] = WIN_H
yanhua_list[i][0] = random.randrange(0, bg_size[0])
if yanhua_list[i][1] <= random.randint(200, 400):
# todo 放烟花
fk = Fireworks(yanhua_list[i][0], yanhua_list[i][1], -20, n=300, color=red_random(1, 150), v=10)
fk_list.append(fk)
yanhua_list[i][1] = WIN_H
yanhua_list[i][0] = random.randrange(0, bg_size[0])
效果图如下：
圈出来的就是上升过程的烟花。
最后就是绽放部分，其实在上升过程的代码中有维护，如果超过某个随机高度，就会生成一个烟花，只是没有渲染，现在我们把渲染加上。
for fk in fk_list:
fk.run()
for p in fk.p_list:
x, y = fk.x + p[1] * math.cos(p[0]), fk.y + p[1] * math.sin(p[0])
if random.random() < 0.055:
screen.set_at((int(x), int(y)), (255, 255, 255))
else:
screen.set_at((int(x), int(y)), (int(fk.color[0]), int(fk.color[1]), int(fk.color[2])))
tmp = []
for fk in fk_list:
for p in fk.p_list:
x, y = fk.x + p[1] * math.cos(p[0]), fk.y + p[1] * math.sin(p[0])
if y < WIN_H - 1000:
tmp.append(fk)
break
fk_list = tmp
最终的运行效果就如最顶上的效果一样。
完整代码
将上述过程进行组合，结果如下，感兴趣的朋友可以按自己的需求进行优化。
import pygame
import random
import math
pygame.init()
pygame.mixer.init()
pygame.font.init()
WIN_W = 2200
WIN_H = 1300
t1 = 0.18 # 时间流速
show_n = 0
show_frequency = 0.0015 # 烟花绽放频率，数值越大频率越高
color_list = [
[255, 0, 0]
]
yanhua_map = {}
fk_list = []
class Fireworks():
is_show = False
x, y = 0, 0
vy = 0
p_list = []
color = [0, 0, 0]
v = 0
def __init__(self, x, y, vy, n=300, color=[0, 255, 0], v=10):
self.x = x
self.y = y
self.vy = vy
self.color = color
self.v = v
for i in range(n):
self.p_list.append([random.random() * 2 * math.pi, 0, v * math.pow(random.random(), 1 / 3)])
def run(self):
global show_n
for p in self.p_list:
p[1] = p[1] + (random.random() * 0.6 + 0.7) * p[2]
p[2] = p[2] * 0.97
if p[2] < 1.2:
self.color[0] *= 0.9999
self.color[1] *= 0.9999
self.color[2] *= 0.9999
if max(self.color) < 10 or self.y > WIN_H + p[1]:
show_n -= 1
self.is_show = False
break
self.vy += 10 * t1
self.y += self.vy * t1
def random_color(l, r):
return [random.randint(l, r), random.randint(l, r), random.randint(l, r)]
def red_random(l, r):
return [255, random.randint(l, r), random.randint(l, r)]
def init_yanhua(bg_size):
yanhua_list = []
for i in range(5):
x_site = random.randrange(0, WIN_W) # 雪花圆心位置
y_site = WIN_H # 雪花圆心位置
X_shift = 0 # x 轴偏移量
radius = random.randint(6, 10) # 半径和 y 周上升降量
xxxxx = random_color(150, 255)
red = xxxxx[0]
green = xxxxx[1]
blue = xxxxx[2]
yanhua_list.append([x_site, y_site, X_shift, radius, red, green, blue])
return yanhua_list
def init_xue(bg_size):
snow_list = []
for i in range(200):
x_site = random.randrange(0, bg_size[0]) # 雪花圆心位置
y_site = random.randrange(0, bg_size[1]) # 雪花圆心位置
X_shift = random.randint(-1, 1) # x 轴偏移量
radius = random.randint(4, 6) # 半径和 y 周下降量
xxxxx = random_color(150, 255)
# red = xxxxx[0]
# green = xxxxx[1]
# blue = xxxxx[2]
snow_list.append([x_site, y_site, X_shift, radius, 255, 255, 255])
return snow_list
def draw_xue(snow_list: [], screen, bg_size: [], grand_has: set, grand_list: []):
# 雪花列表循环
# todo 空中的雪
for i in range(len(snow_list)):
# 绘制雪花，颜色、位置、大小
pygame.draw.circle(screen, (snow_list[i][4], snow_list[i][5], snow_list[i][6]), snow_list[i][:2],
snow_list[i][3] - 3)
# 移动雪花位置（下一次循环起效）
snow_list[i][0] += snow_list[i][2]
snow_list[i][1] += snow_list[i][3]
# 如果雪花落出屏幕，重设位置
if snow_list[i][1] > bg_size[1]:
# tmp = []
snow_list[i][1] = random.randrange(-50, -10)
snow_list[i][0] = random.randrange(0, bg_size[0])
x = snow_list[i][0]
y = bg_size[1]
while (grand_has.__contains__(x * 10000 + y)):
y = y - snow_list[i][3]
grand_has.add(x * 10000 + y)
grand_list.append(
[x, y, snow_list[i][2], snow_list[i][3], snow_list[i][4], snow_list[i][5],
snow_list[i][6]])
def draw_yanhua(yanhua_list: [], screen, bg_size: []):
global fk_list
for i in range(len(yanhua_list)):
# 绘制雪花，颜色、位置、大小
pygame.draw.circle(screen, (yanhua_list[i][4], yanhua_list[i][5], yanhua_list[i][6]), yanhua_list[i][:2],
yanhua_list[i][3] - 3)
# 移动雪花位置（下一次循环起效）
yanhua_list[i][0] += yanhua_list[i][2]
yanhua_list[i][1] -= yanhua_list[i][3]
# 如果雪花落出屏幕，重设位置
if yanhua_list[i][1] <= 0:
# tmp = []
yanhua_list[i][1] = WIN_H
yanhua_list[i][0] = random.randrange(0, bg_size[0])
if yanhua_list[i][1] <= random.randint(200, 400):
# todo 放烟花
fk = Fireworks(yanhua_list[i][0], yanhua_list[i][1], -20, n=300, color=red_random(1, 150), v=10)
fk_list.append(fk)
yanhua_list[i][1] = WIN_H
yanhua_list[i][0] = random.randrange(0, bg_size[0])
def show_shi(a: list, n, screen):
i = 2 * n - 1
j = 2 * n
if i >= len(a):
i = len(a) - 2
j = len(a) - 1
if i >= 0:
myfont = pygame.font.SysFont('simHei', 30)
textsurface = myfont.render(a[i], False, random_color(150, 255))
screen.blit(textsurface, (WIN_W / 2, 30))
if j >= 0:
myfont = pygame.font.SysFont('simHei', 100)
textsurface = myfont.render(a[j], False, red_random(1, 1))
screen.blit(textsurface, (WIN_W / 2 - 200, 50))
def main():
global show_n
global fk_list
bg_size = (WIN_W, WIN_H)
screen = pygame.display.set_mode(bg_size)
# bg_img = "./1.png"
pygame.display.set_caption("新年快乐")
# bg = pygame.image.load(bg_img)
pygame.mixer.music.load('D:\\CloudMusic\\小时姑娘 - 霞光-《精灵世纪》片尾曲.mp3')
grand_list = []
font_values = ['新年快乐']
grand_has = set()
clock = pygame.time.Clock()
yanhua_list = init_yanhua(bg_size)
snow_list = init_xue(bg_size)
# 游戏主循环
while True:
if not pygame.mixer.music.get_busy():
pygame.mixer.music.play()
for event in pygame.event.get():
if event.type == pygame.QUIT:
exit()
screen.fill((0, 0, 0))
draw_yanhua(yanhua_list, screen, bg_size)
if len(fk_list) != 0:
print(len(fk_list))
# # 放烟花
show_shi(font_values, 0, screen)
for fk in fk_list:
fk.run()
for p in fk.p_list:
x, y = fk.x + p[1] * math.cos(p[0]), fk.y + p[1] * math.sin(p[0])
if random.random() < 0.055:
screen.set_at((int(x), int(y)), (255, 255, 255))
else:
screen.set_at((int(x), int(y)), (int(fk.color[0]), int(fk.color[1]), int(fk.color[2])))
tmp = []
for fk in fk_list:
for p in fk.p_list:
x, y = fk.x + p[1] * math.cos(p[0]), fk.y + p[1] * math.sin(p[0])
if y < WIN_H - 1000:
tmp.append(fk)
break
fk_list = tmp
min_height = 100000
# todo 地上的积雪
for i in range(len(grand_list)):
if grand_list[i][0] < 375:
min_height = min(min_height, grand_list[i][1])
draw_xue(snow_list, screen, bg_size, grand_has, grand_list)
for i in range(len(grand_list)):
pygame.draw.circle(screen, (grand_list[i][4], grand_list[i][5], grand_list[i][6]), grand_list[i][:2],
grand_list[i][3] - 3)
pygame.display.update()
time_passed = clock.tick(50)
if __name__ == '__main__':
main()
到此这篇关于新年到教你如何用Python实现雪夜烟花景的文章就介绍到这了,更多相关Python雪夜烟花景内容请搜索服务器之家以前的文章或继续浏览下面的相关文章希望大家以后多多支持服务器之家！
原文链接：https://blog.csdn.net/xielinrui123/article/details/122701390
