Untitled

import pygame, sys

clock = pygame.time.Clock()

from pygame.locals import *

pygame.init() # initiates pygame

pygame.display.set_caption("First Game ")

WINDOW_SIZE = (400,400)

screen = pygame.display.set_mode(WINDOW_SIZE,0,32) #Initiates window

player_image = pygame.image.load("player.png")

moving_right = False
moving_left = False

player_location = [50,50]
player_y_momentum = 0


while True: #game loop

    screen.fill((0,255,0))

    screen.blit(player_image,player_location)

    if player_location[1] > WINDOW_SIZE[1]-player_image.get_height(): #IF A PLAYER LOCATION IS MORE THAN THE WINDOW SIZE Y VALUE MINUS THE PLAYER HEIGHT (BASICALLY BOTTOM OF IMAGE)
        player_y_momentum = -player_y_momentum                                
    else:
        player_y_momentum += 0.2
    player_location[1] += player_y_momentum
    
    if moving_right == True:
        player_location[0] += 4
    if moving_left == True:
        player_location[0] -= 4




    for event in pygame.event.get():
        if event.type == QUIT:
            sys.exit()
    if event.type == KEYDOWN:
        if event.key == K_RIGHT:
            moving_right = True
        if event.key == K_LEFT:
            moving_left = True

    if event.type == KEYUP:
        if event.key == K_RIGHT:
            moving_right = False
        if event.key == K_LEFT:
            moving_left= False

    pygame.display.update()
    clock.tick(60)