ArkaPyGame 1.3 – Adding a background

Now we added a background to the game

I made it 500×500 and saved it into a folder called img.

I loaded with this function that makes it a surface

background = pygame.image.load("img\\background.png")

And I blitted it in the while loop at the start replacing screen.fill, because now this one deletes the previous blits on the screen so that it is all nice and clean.

while loop:
    screen.blit(background, (0, 0))

I also used another way to draw the ball

I imported this

from pygame import gfxdraw

And substituted the ellipse, in the move_ball() function with this

    # pygame.draw.ellipse(screen, GREEN, (xb, yb, 13, 13))
    gfxdraw.filled_circle(screen, xb, yb, 5, GREEN)

The whole code

# pong!
import pygame
from random import choice, randrange
from pygame import gfxdraw

BLACK = (0, 0, 0)
RED = (255, 0, 0)
GREEN = (0, 255, 0)

# Coordinates p1, p2 and ball
x1 = 490
y1 = 490
x2 = 0
y2 = 250
xb = 500
yb = 300

dbo = 'left'
dbv = 'down'

scorep1 = 0
scorep2 = 0

vel_bal = 2

clock = pygame.time.Clock()
screen = pygame.display.set_mode((500, 500))
pygame.display.set_caption("Game")

pygame.init()




def sprite1(x, y):
    "Draw Player 1"
    pygame.draw.rect(screen, RED, (x, y, 50, 10))


class Sprite:
    "Draw Player 2"

    def __init__(self, x, y):
        self.x = x
        self.y = y
        self.update()

    def update(self):
        pygame.draw.rect(screen, GREEN, (self.x, self.y, 50, 10))


def move_ball(x, y):
    "The ball moves"
    global xb, yb, dbo, dbv
    if dbo == "left":
        xb -= vel_bal
        if xb < 10:
            dbo = "right"
    if dbv == 'down':
        yb += vel_bal
    if dbv == 'up':
        yb -= vel_bal
        if yb < 10:
            dbv = 'down'
    if dbo == "right":
        xb += vel_bal
        if xb > 480:
            dbo = "left"
    # pygame.draw.ellipse(screen, GREEN, (xb, yb, 13, 13))
    gfxdraw.filled_circle(screen, xb, yb, 5, GREEN)


def collision():
    global startx
    global x1, y1
    global x2, y2
    global xb, yb
    global x, y
    global dbo, dbv, vel_bal
    global scorep1, scorep2
    if dbo == "left":
        if yb > 480:
            if (xb >= x and xb < x + 50):
                print("Collision detected")
                dbv = "up"
                print(dbv)
                print(yb)
                speed_up()
            else:
                pygame.draw.ellipse(screen, BLACK, (xb, yb, 20, 20))
                xb, yb = 500, 300


def move1():
    global y2
    if y2 <= 450:
        if keys[pygame.K_z]:
            y2 += 10
    if y2 > 0:
        if keys[pygame.K_a]:
            y2 -= 10


def move2():
    global y1
    if y1 <= 450:
        if keys[pygame.K_m]:
            y1 += 10
    if y1 > 0:
        if keys[pygame.K_k]:
            y1 -= 10

def exit(event):
    global loop

    if event.type == pygame.QUIT:
        loop = 0
    if event.type == pygame.KEYUP:
        if event.key == pygame.K_ESCAPE:
            loop = 0
    return loop


def speed_up():
    global vel_bal
    x, y = pygame.mouse.get_pos()
    if startx == x:
        vel_bal = 2
        print("Normal speed")
    else:
        vel_bal = 3
        print("Speed up")


pygame.mouse.set_visible(False)
loop = 1

# This is to increase ball speed
startx = 0

def create_bricks():
    blist = """
10111111
11111011
    """
    bricks = []
    h = 20
    w = 0
    for brick in blist[1:-1]:
        if brick == "1":
            bricks.append(Sprite(20 + w * 60, h))
            if w > 7:
                w = 0
                h += 20
        w += 1
    return bricks

bricks = create_bricks()
background = pygame.image.load("img\\background.png")
while loop:
    screen.blit(background, (0, 0))
    keys = pygame.key.get_pressed()
    for event in pygame.event.get():
        loop = exit(event)
    move1()
    move2()
    move_ball(xb, yb)
    x, y = pygame.mouse.get_pos()
    sprite1(x, y1)
    collision()
    startx = x
    for brick in bricks:
        brick.update()
    pygame.display.update()

    pygame.display.update()
    clock.tick(120)



pygame.quit()

Now it looks a lot more the original

1.1 – Pong the father of Arkanoid