The A-Ping Pong V0.01

import pygame,sys
from pygame.locals import*
pygame.init()
SF=pygame.display.set_mode((600,600), pygame.DOUBLEBUF)
pygame.display.set_caption('A-Ping Pong (Idea by Hackermakduf)')
SF.fill((0, 0, 0))
FPS=60
pygame.mouse.set_visible(False)
ball={"rect":[SF.get_rect().centerx, SF.get_rect().centery, 20, 20],
      "dir_vector" : [-5, 3],
      "radius" : 10,
      "color": (0, 255, 0)}
plate_1={"rect": [250, SF.get_height()-25, 100, 50],
        "color": (255, 0, 0), "speed":10}
plate_2={"rect": [250, -25, 100, 50],
        "color": (0, 0, 255), "speed":10}

FPS_CLOCK=pygame.time.Clock()
RIGHT1, RIGHT2, LEFT1, LEFT2 = False, False, False, False
while True:
    for event in pygame.event.get():
        if event.type==QUIT:
            pygame.quit()
            sys.exit()
        if event.type==KEYDOWN:
            if event.key==K_RIGHT:
                RIGHT1= True
            if event.key==K_d:
                RIGHT2= True
            if event.key==K_LEFT:
                LEFT1=True
            if event.key==K_a:
                LEFT2=True
        if event.type==KEYUP:
            if event.key==K_RIGHT:
                RIGHT1= False
            if event.key==K_d:
                RIGHT2= False
            if event.key==K_LEFT:
                LEFT1=False
            if event.key==K_a:
                LEFT2=False

    SF.fill((0, 0, 0))

    #Check_For_Collision:
    if ball["rect"][0]-ball["radius"] <= 10 or ball["rect"][0]+ball["radius"] >= SF.get_width()-10:
        ball["dir_vector"][0]*=-1
    if ball["rect"][1] <= 5 or ball["rect"][1]+ball["radius"] >= SF.get_height()-10:
        ball["dir_vector"][1]*=-1
    #Check_For_Collision_end:
    #Add_Velocities:
    ball["rect"][0]+=ball["dir_vector"][0]
    if ball["rect"][0]-ball["radius"] < 10:
        ball["rect"][0]=10+ball["radius"]
    elif ball["rect"][0]+ball["radius"] > SF.get_width()-10:
        ball["rect"][0]=SF.get_width()-10-ball["radius"]


    ball["rect"][1]+=ball["dir_vector"][1]
    #Add_Velocities_end:
    #Draw_Borders:
    pygame.draw.line(SF, (255, 255, 255),(5, SF.get_height()), (5, 0), 10)
    pygame.draw.line(SF, (255, 255, 255),(SF.get_width()-5, SF.get_height()), (SF.get_width()-5, 0), 10)
    #Draw_Borders_end:
    #Draw_Ball:
    pygame.draw.circle(SF, ball["color"], (ball["rect"][0], ball["rect"][1]),
                       ball["radius"], 4)

    #Draw_Ball_end:
    #Draw_Plate_1:
    pygame.draw.arc(SF, plate_1["color"], plate_1["rect"], 20, 160, 10)

    #Draw_Plate_2:
    pygame.draw.arc(SF, plate_2["color"], plate_2["rect"], 20, 160, 10)
    if RIGHT1:
        plate_1["rect"][0]+=plate_1["speed"]
    if LEFT1:
        plate_1["rect"][0]-=plate_1["speed"]
    if RIGHT2:
        plate_2["rect"][0]+=plate_2["speed"]
    if LEFT2:
        plate_2["rect"][0]-=plate_2["speed"]
    pygame.display.flip()
    FPS_CLOCK.tick(FPS)