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Hello Gilga,
I tried out your code and I was able to get 60 FPS on my dual-core 3GHz machine with a very basic Radeon graphics card. But Iâm running Kubuntu Linux 15.04 with OpenGL 3.0 / Mesa 10.5.2. I didnât experience any crash either, although Iâm not a piano player so I didnât do a lot with it.
By the way, I had to modify your code to get it to run. Iâm wondering if you havenât checked in your latest code?
Anyway, I had to add
# -*- coding: utf-8 -*-
as the 2nd line because the Python 2 parser wouldnât start without it. Yes, Iâm using Python 2, and on Linux. Are you using Windows?
In your Key.update() function, I had to change the directory name to pythonpiano_pictures instead of pictures.
I also commented out
self.background = "">
because I donât see how itâs necessary to change the format of the screen buffer to what it already has. I think that function is more for sprite images that you load in and that you want to have as the same format as the screen buffer.
I just looked at your update function for the Key class. That needs attention. And now I can see why it is causing your frame rate to be artificially lower that it needs to be; it could be causing your crashes; and is something that no one tells you but you find out the hard way.
In your update function, you need it to be as fast as possible. I see that youâre *loading* the appropriate key image from disk every time it needs to *draw* the image. Not good. Very slow. Think fast.
Instead, preload all game assets--images and sound--before the main update loop begins.
Good luck and let us know how it goes!
~ Michael
> Hi! > I've created a simple 2D graphic program to play the piano thanks to a computer keyboard: see https://github.com/gustavklopp/pypiano > (you can clone it, it's only 2 files and the sound ressource) > > Even if setting the FPS to 40, I can't even get that with my not so weak laptop (AMD A4-5000 1.5 GHz, AMD Radeon HD 8330, RAM 4096MB), and I'm stuck to just 30FPS. Sometimes, if I play a little longer than a few minutes, the program even crash (no more sound and I can't exit without Ctrl+Alt+Sup). > For a music program, at 30FPS, you can detect the delay between the typing and the playing of the sound... > > I think the problem is with loading my 48 OGG sounds (48-key keyboard) at the beginning: I'm using: > `pygame.mixer.pre_init(44100, -16, 2, 4096)` > > Is there some solutions to have this program not crashing when trying to play the sounds and improve the FPS? > Maybe if you try it on your computer, the FPS are better and it's a problem with my OpenGL and Radeon Driver (known to be quite touchy)? > > Thanks a lot for your help! > > > |