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June 15th, 2010
Simple-Case PyGame Example
I'm starting to investigate PyGame as an alternative to PIL and K for my QRSS VD spectrograph project. This sample code makes a box bounce around a window.
import pygame, sys
pygame.init() #load pygame modules
size = width, height = 320, 240 #size of window
speed = [2, 2] #speed and direction
screen = pygame.display.set_mode(size) #make window
s=pygame.Surface((100,50)) #create surface 100px by 50px
s.fill((33,66,99)) #color the surface blue
r=s.get_rect() #get the rectangle bounds for the surface
clock=pygame.time.Clock() #make a clock
while 1: #infinite loop
clock.tick(30) #limit framerate to 30 FPS
for event in pygame.event.get(): #if something clicked
if event.type == pygame.QUIT: #if EXIT clicked
sys.exit() #close cleanly
r=r.move(speed) #move the box by the "speed" coordinates
#if we hit a wall, change direction
if r.left < 0 or r.right > width: speed[0] = -speed[0]
if r.top < 0 or r.bottom > height: speed[1] = -speed[1]
screen.fill((0,0,0)) #make redraw background black
screen.blit(s,r) #render the surface into the rectangle
pygame.display.flip() #update the screen
Markdown source code last modified on January 18th, 2021
---
title: Simple-Case PyGame Example
date: 2010-06-15 08:29:03
tags: python, old
---
# Simple-Case PyGame Example
__I'm starting to investigate PyGame__ as an alternative to PIL and K for my QRSS VD spectrograph project. This sample code makes a box bounce around a window.
<div class="text-center img-border">
[](example_pygame.png)
</div>
```python
import pygame, sys
pygame.init() #load pygame modules
size = width, height = 320, 240 #size of window
speed = [2, 2] #speed and direction
screen = pygame.display.set_mode(size) #make window
s=pygame.Surface((100,50)) #create surface 100px by 50px
s.fill((33,66,99)) #color the surface blue
r=s.get_rect() #get the rectangle bounds for the surface
clock=pygame.time.Clock() #make a clock
while 1: #infinite loop
clock.tick(30) #limit framerate to 30 FPS
for event in pygame.event.get(): #if something clicked
if event.type == pygame.QUIT: #if EXIT clicked
sys.exit() #close cleanly
r=r.move(speed) #move the box by the "speed" coordinates
#if we hit a wall, change direction
if r.left < 0 or r.right > width: speed[0] = -speed[0]
if r.top < 0 or r.bottom > height: speed[1] = -speed[1]
screen.fill((0,0,0)) #make redraw background black
screen.blit(s,r) #render the surface into the rectangle
pygame.display.flip() #update the screen
```
