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firework.py
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firework.py
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import pygame
import random
import time
import math
from common import SpriteCounter, BaseSprite
max_mass = 2500
screen_size = (800, 600)
colours = [
"#8e946eff",
"#795e55ff",
"#d8a57aff",
"#b4d1d5ff",
"#008fadff",
"#354894ff",
"#f5c4caff",
"#df4f66ff",
"#a04a6dff",
"#db487eff",
"#b35d68ff",
"#dec8ecff",
"#725782ff",
"#cf734aff",
"#fe8453ff",
"#cf734aff",
"#635c56ff",
"#ae956cff",
"#555a5dff",
"#b5b6baff",
"#ffe89eff",
"#7ad3b7ff",
"#79a1a9ff",
"#f28e7fff"
]
def get_random_colour():
i = random.randint(0, len(colours) - 1)
return pygame.Color(colours[i])
class Debris(BaseSprite):
degrade_speed = 3
containers = []
debris_count = 0
explode_debris_count = 0
def __init__(self, position, angle, speed, size=3, colour=(255, 255, 255)):
BaseSprite.__init__(self)
self.position = position
self.speed = speed
self.colour = colour
self.set_angle(angle)
self.rect = pygame.Rect(position, (size, size))
self.image = pygame.Surface((size, size))
# self.image = draw_star(5, size)
self.image.fill(colour)
self.size = size
def set_angle(self, angle):
self.angle = angle
self.dx = self.speed * math.cos(math.radians(self.angle))
self.dy = self.speed * math.sin(math.radians(self.angle))
def update_dt(self, dt):
prev_size = self.size
self.size -= self.degrade_speed * dt
if self.size < 1:
self.kill()
elif int(prev_size) != int(self.size):
self.update_image()
if self.speed != 0:
self.speed -= self.degrade_speed * dt
if self.speed < 0:
self.speed = 0
# apply gravity
self.dy += 9.81*dt*75 # 75px is a meter because YOLO
x, y = self.position
if self.speed:
self.dirty = 1
x += self.dx * dt
y += self.dy * dt
self.rect.center = self.position = (x, y)
update_angle = False
if (self.rect.left < 0 and self.dx < 0) \
or (self.rect.right > screen_size[0] and self.dx > 0):
self.dx *= -1
update_angle = True
if (self.rect.top < 0 and self.dy < 0) \
or (self.rect.bottom > screen_size[1] and self.dy > 0):
self.dy *= -1
update_angle = True
if update_angle:
self.angle = math.degrees(math.atan2(self.dy, self.dx))
def update_image(self):
self.image = pygame.Surface((self.size, self.size))
self.image.fill(self.colour)
class Emitter(BaseSprite):
containers = []
def __init__(self, position, angle, emit_speed_range=(100, 500)):
BaseSprite.__init__(self)
self.position = position
self.angle = angle
self.emit_speed_range = emit_speed_range
self.image = pygame.Surface((5,5))
self.image.fill((255,255,255))
self.rect = self.image.get_rect(center=self.position)
def update_dt(self, dt):
speed = random.randint(*self.emit_speed_range)
size = random.randint(1, 5)
angle = self.angle + random.randint(-30, 30)
colour = get_random_colour()
Debris(self.position, angle, speed, size=size, colour=colour)
def main():
pygame.init()
screen = pygame.display.set_mode(screen_size)
all_sprites = pygame.sprite.RenderUpdates()
# stars = pygame.sprite.RenderUpdates()
fworks = pygame.sprite.RenderUpdates()
debris = pygame.sprite.RenderUpdates()
# Star.containers = [stars, all_sprites]
Emitter.containers = [fworks, all_sprites]
Debris.containers = [debris, all_sprites]
# Emitter((200,200), -90)
counter = SpriteCounter()
start_point = (0, 0)
try:
while not pygame.event.peek(pygame.QUIT):
# pygame.event.poll()
for event in pygame.event.get(pygame.KEYDOWN):
if event.unicode == "s":
make_star()
for event in pygame.event.get(pygame.MOUSEBUTTONDOWN):
if event.button == 1:
start_point = event.pos
for event in pygame.event.get(pygame.MOUSEBUTTONUP):
if event.button == 1:
dx = event.pos[0] - start_point[0]
dy = event.pos[1] - start_point[1]
max_speed = int(math.sqrt(dy**2 + dx**2))*10
Emitter((start_point), math.degrees(math.atan2(dy, dx)), emit_speed_range=(max_speed//5, max_speed))
pygame.event.clear()
screen.fill((0, 0, 0))
all_sprites.update()
all_sprites.draw(screen)
if pygame.mouse.get_pressed()[0]:
pygame.draw.aaline(screen, (255,0,255), start_point, pygame.mouse.get_pos())
counter.update_counts({
"debris": len(debris),
"stars": len(fworks),
"all": len(all_sprites)
})
counter.update()
screen.blit(counter.image, counter.rect)
pygame.display.flip()
except KeyboardInterrupt:
pass
print("Quitting...")
if __name__ == "__main__":
main()