PONG_GAME.py

#This program was originaly created by pygame.org creator Baris Bayrak (garib) 
#His Code: http://www.pygame.org/project-Very+simple+Pong+game-816-.html

#I just added two players, and a play to 11 win by 2 mechanic (Although it may not be perfect)

import time
import pygame
from pygame.locals import *
from sys import exit
import random
import pygame.camera
from pygame.locals import *

pygame.init()
pygame.camera.init()

screen=pygame.display.set_mode((640,480),0,32)
pygame.display.set_caption("2P Pong!")

#Creating 2 bars, a ball and background.
back = pygame.Surface((640,480))
background = back.convert()
background.fill((3,31,64))
bar = pygame.Surface((10,50))
bar1 = bar.convert()
bar1.fill((0,0,255))
bar2 = bar.convert()
bar2.fill((255,0,0))
circ_sur = pygame.Surface((15,15))
circ = pygame.draw.circle(circ_sur,(0,255,0),(15/2,15/2),15/2)
circle = circ_sur.convert()
circle.set_colorkey((0,0,0))

# some definitions
bar1_x, bar2_x = 10. , 620.
bar1_y, bar2_y = 215. , 215.
circle_x, circle_y = 307.5, 232.5
bar1_move, bar2_move = 0. , 0.
speed_x, speed_y, speed_circ = 250., 250., 250.
bar1_score, bar2_score = 0,0
#clock and font objects
clock = pygame.time.Clock()
font = pygame.font.SysFont("calibri",40)

play = "y"
while play == "y":
    
    for event in pygame.event.get():
        if event.type == QUIT:
            exit()
        if event.type == KEYDOWN:
            if event.key == K_w:
                bar1_move = -ai_speed
            elif event.key == K_s:
                bar1_move = ai_speed
        elif event.type == KEYUP:
            if event.key == K_w:
                bar1_move = 0.
            elif event.key == K_s:
                bar1_move = 0.
        
        if event.type == QUIT:
            exit()
        if event.type == KEYDOWN:
            if event.key == K_UP:
                bar2_move = -ai_speed
            elif event.key == K_DOWN:
                bar2_move = ai_speed
        elif event.type == KEYUP:
            if event.key == K_UP:
                bar2_move = 0.
            elif event.key == K_DOWN:
                bar2_move = 0.

    
    score1 = font.render(str(bar1_score), True,(255,255,255))
    score2 = font.render(str(bar2_score), True,(255,255,255))

    screen.blit(background,(0,0))
    frame = pygame.draw.rect(screen,(255,255,255),Rect((5,5),(630,470)),2)
    middle_line = pygame.draw.aaline(screen,(255,255,255),(330,5),(330,475))
    screen.blit(bar1,(bar1_x,bar1_y))
    screen.blit(bar2,(bar2_x,bar2_y))
    screen.blit(circle,(circle_x,circle_y))
    screen.blit(score1,(250.,210.))
    screen.blit(score2,(380.,210.))

    bar1_y += bar1_move
    bar2_y += bar2_move
    
# movement of circle
    time_passed = clock.tick(20)
    time_sec = time_passed / 1000.0
    
    circle_x += speed_x * time_sec
    circle_y += speed_y * time_sec
    ai_speed = speed_circ * time_sec + 10
#AI of the computer.

#REMOVED TO HAVE SECOND PLAYER CONTROLS

#since i don't know anything about collision, ball hitting bars goes like this.
    if circle_x <= bar1_x + 10.:
        if circle_y >= bar1_y - 7.5 and circle_y <= bar1_y + 42.5:
            circle_x = 20.
            speed_x = -speed_x
    if circle_x >= bar2_x - 15.:
        if circle_y >= bar2_y - 7.5 and circle_y <= bar2_y + 42.5:
            circle_x = 605.
            speed_x = -speed_x
    if circle_x < 5.:
        bar2_score += 1
        circle_x, circle_y = 320., 232.5
        bar1_y,bar_2_y = 215., 215.
    elif circle_x > 620.:
        bar1_score += 1
        circle_x, circle_y = 307.5, 232.5
        bar1_y, bar2_y = 215., 215.
    if circle_y <= 10.:
        speed_y = -speed_y
        circle_y = 10.
    elif circle_y >= 457.5:
        speed_y = -speed_y
        circle_y = 457.5
    if bar2_score >= 11 and bar2_score > bar1_score + 2:
		    redwin = raw_input("Red Player Wins. Press Enter To Close Pygame Window.")
		    break
    if bar1_score >= 11 and bar1_score > bar2_score + 2:
		    bluewin = raw_input("Blue Player Wins. Press Enter To Close Pygame Window.")
		    break
		
    	

    pygame.display.update()