Re: [pygame] pygame metronome

["Shandy (Andy) Brown" <sjbrown@xxxxxxxxx>]

This doesn't answer your question, but if you want to look at a
metronome I created:

http://ezide.com/metronome/

It's only around 200 lines of code.

On Tue, Jul 27, 2010 at 10:01 PM, Brian Gryder <bgryderclock@xxxxxxxxx> wrote:
> I am working on writing a metronome with Pygame.
> http://www.pygame.org/project-Innep+Metronome-1594-2808.html
> Here is a screenshot:
> http://www.pygame.org/shots/1594.png
> I am using "print \a" as the metronome click sound. I am using the
> pygame.time.Clock() to move the position of the metronome meter (called x)
> left and right across the screen. Occasionally the program will stutter and
> the sound with play a little early or late. Is this because I am using
> "print \a" instead of playing a wav file with the pygame library? Any
> suggestions for improvement?
> ~Thank you
> Brian
> here is my code:
> ############## start innep.py #########
> import pygame
> from pygame.locals import *
> from sys import exit
> instr1 = "Up/Down Arrow = Increase/Decrease Tempo"
> instr2 = "Right/Left Arrow = Increase/Decrease Tempo Range "
> instr3 = "Space Bar = Disable/Enable graphic"
> instr4 = "Tab Key = Disable/Enable sound"
> instr5 = "S-Key/A-Key = Increase/Decrease Tempo Change Rate"
> screenwidth = 800
> screenheight = 600
> bpm = 100.0
> orgbpm = bpm
> direction = "right"
> tempochange = "increase"
> showelements = "all"
> tempochangerange = 0.05
> tempochangerate = 0.02
> green = (138,226,52)
> blue = (114,159,207)
> black = (46,52,54)
> white = (238,238,236)
> backgroundcolor = (0,0,255)
> mute = False
>
> pygame.init()
> SCREEN_SIZE = (screenwidth, screenheight)
> linestart = (0,0)
> lineend = (0,screenheight)
> screen = pygame.display.set_mode(SCREEN_SIZE, RESIZABLE, 32)
> pygame.display.set_caption("Innep Metronome ~ (Penni Spelled Backwards)")
> font = pygame.font.SysFont("arial",16);
> distance_moved = 0.0
> clock = pygame.time.Clock()
> # X coordinate of our sprite
> x = 0.0
> # Speed in pixels per second Âscreenwidth = 1 bps or 60 bpm
> #speed = screenwidth * bpm / 60
> timer_seconds = 0.0
> while True:
> for event in pygame.event.get():
> if event.type == QUIT:
> exit()
> if event.type == VIDEORESIZE:
> SCREEN_SIZE = event.size
> screenwidth,screenheight = SCREEN_SIZE
> screen = pygame.display.set_mode(SCREEN_SIZE, RESIZABLE, 32)
> if event.type == KEYDOWN:
> if event.key == K_UP:
> orgbpm = orgbpm + 1.
> print "increasing orgbpm"
> if event.key == K_DOWN:
> orgbpm = orgbpm - 1.
> print "decreasing orgbpm"
> if event.key == K_LEFT:
> tempochangerange = tempochangerange - 1.
> print "decreasing tempochangerange"
> if event.key == K_RIGHT:
> tempochangerange = tempochangerange + 1.
> print "increasing tempochangerange"
> if event.key == K_a:
> tempochangerate = tempochangerate - .01
> print "decreasing tempochangerate"
> if event.key == K_s:
> tempochangerate = tempochangerate + .01
> print "increasing tempochangerate"
> if event.key == K_SPACE:
> if showelements == "all":
> showelements = "none"
> print "showelements = none"
> elif showelements == "none":
> showelements = "all"
> print "showelements = all"
> if event.key == K_TAB:
> if mute == False:
> mute = True
> print "muted"
> elif mute == True:
> mute = False
> print "unmuted"
> speed = screenwidth * (bpm / 60)
> time_passed = clock.tick(30)
> time_passed_seconds = time_passed / 1000.0
> timer_seconds = timer_seconds + time_passed_seconds
> if x >= screenwidth:
> if mute == False:
> print "\a"
> direction = "left"
> if x < 0:
> if mute == False:
> print "\a"
> direction = "right"
> if direction == "left":
> distance_moved = time_passed_seconds * speed * -1
> backgroundcolor = green
> linestart = (x,0)
> lineend = (x,(screenheight/2))
> if direction == "right":
> distance_moved = time_passed_seconds * speed * 1
> backgroundcolor = blue
> linestart = (x,(screenheight/2))
> lineend = (x,screenheight)
> if bpm > (orgbpm + tempochangerange):
> tempochange = "decrease"
> if bpm < (orgbpm - tempochangerange):
> tempochange = "increase"
> if bpm == orgbpm:
> tempochange = "nochange"
> if tempochange == "increase":
> bpm = bpm + tempochangerate
> if tempochange == "decrease":
> bpm = bpm - tempochangerate
> x = x + distance_moved
> if showelements == "all":
> screen.fill(backgroundcolor)
> screen.blit(font.render(instr3,True,black),(0,0) )
> screen.blit(font.render(instr4,True,black),(0,20) )
> screen.blit(font.render(instr1,True,black),(0,40) )
> screen.blit(font.render(instr2,True,black),(0,60) )
> screen.blit(font.render(instr5,True,black),(0,80) )
> screen.blit(font.render("Tempo:"+str(orgbpm),True,black),(0,100) )
> screen.blit(font.render("Varying Tempo:"+str(bpm),True,black),(0,120) )
> screen.blit(font.render("Tempo Range:" + \
> str(tempochangerange),True,black),(0,140) )
> screen.blit(font.render("Tempo Range Rate:" + \
> str(tempochangerate),True,black),(0,160) )
>
> pygame.draw.line(screen, white, linestart, lineend, 50)
> pygame.display.update()
> ############### end innep.py Â#########
>
>