Particles Of Blue

Something I have not used in a PyGame game yet is particles of any sort. Thinking over a few ideas for a mining game, it seemed like a fun idea to have some sort of soil. This lead to a quick half-hour of coding and here is the result:


It is not terribly efficient or a good colour for soil but has potential.

Here's the code:

importpygame
importsys
importrandom

frompygame.eventimport*
frompygame.localsimport*

TIMEREVENT=pygame.USEREVENT
FPS=50
pygame.init()
window=pygame.display.set_mode((640,480))
background=None
background=pygame.Surface(window.get_size())
background.fill((0,0,0))
pygame.time.set_timer(TIMEREVENT,int(1000/FPS))
colour3=Color(0,0,255)
ground=Color(0,255,0)
y=100

defDrawText(bg,x,y,text,size=24,color=(255,255,255)):
inst1_font=pygame.font.Font(None,size)
inst1_surf=inst1_font.render(text,1,color)
bg.blit(inst1_surf,[x,y])

classgrit(object):
def__init__(self):
self.x=random.randint(0,639)
self.y=random.randint(0,125)-50
self.width=random.randint(1,6)
self.height=random.randint(1,6)
self.color=Color(0,0,random.randint(119,255))
self.active=True

definit():
gritsL=1000
agrits=[]
whilelen(agrits)<gritsL:
agrits.append(grit())
returnagrits

grits=init()

whileTrue:

foreventinpygame.event.get():
ifevent.type==TIMEREVENT:
background.fill(pygame.Color("black"))
DrawText(background,25,120,"Daftspaniel",126)
pygame.draw.rect(background,ground,Rect(0,450,640,280),0)
pygame.draw.rect(background,ground,Rect(300,250,340,180),0)

forgingrits:
pygame.draw.rect(background,g.color,Rect(g.x,g.y,g.width,g.height),0)
ifg.active:
ifg.y>-1andg.y<(480-g.height):
c=background.get_at((g.x,g.y+g.height));
ifc.r==0andc.g==0:
g.y=g.y+5
else:
g.active=False
ifg.y<0:
g.y=g.y+5
window.blit(background,(0,0))
pygame.display.flip()
elifevent.type==pygame.KEYDOWN:
keystate=pygame.key.get_pressed()
ifnotkeystate[K_w]==1:
grits=init()
elifevent.type==pygame.QUIT:
sys.exit()

Any suggested improvements? I would like to use this for a treaure hunt game. Two players digging for gold. Soil lumps might have to be bigger for a game.