python game development code

 import pygame

pygame.init()

Above, we've imported PyGame, which is obviously necessary to make use of the module! Then, we run pygame.init(), which is integral to every single PyGame application that you will ever write. This will initiate PyGame, and allow you to then make various commands with PyGame and our game.

gameDisplay = pygame.display.set_mode((800,600))

pygame.display.set_caption('A bit Racey')

 

Next, we define our game's display, which is the main "display" for our game. You may also see this referred to as a "surface," as this is basically our canvas that we will draw things to, and the function literally returns a pygame.Surface object. We are saying right now that we want the resolution of our game to be 800 px wide and 600 px tall. Take note that this is a tuple as a function argument. If you do not make this a tuple with parenthesis, then 600 and 800 will be treated as separate parameters and the function will blow up. It's a big deal.

After that, we define our display's "caption." To me, it's more like a title, and is the title of the window. We've decided to call our game "A bit Racey." (tm!)

clock = pygame.time.Clock()

Simple enough, this is a our game clock. We use this to track time within the game, and this is mostly used for FPS, or "frames per second." While somewhat trivial seeming, FPS is very important, and can be tweaked as we will see later. For the most part, the average human eye can see ~30 FPS. It's important to note, however, that this is only a very general statement, since every human eye is slightly different, and the human eye does not process things in "frames." The better way to put it is that after about 30 FPS, people generally cannot tell the difference.

Take that 60 FPS YouTube. Anyway, we can increase FPS to literally speed up the game, or slow them down to slow down the game. This isn't ideal, especially when speeding up FPS, as the entire game loop is run per frame, and might be a massive waste of processing. More on this later though!

 

crashed = False

while not crashed:

    for event in pygame.event.get():

        if event.type == pygame.QUIT:

            crashed = True

        print(event)

    pygame.display.update()

    clock.tick(60)

Okay, a bit more here. I don't like to separate loops and functions if I don't have to, since it can cause people to get indentation wrong. So, first, we've got a crashed = False statement, which is just a variable that we set initially. Then, we run our "game loop," which will run until we crash. Currently, the only way we're saying crashed = True is if the user exits out of the window, however.