import pygame
from pygame.locals import *
import sys

pygame.init()

displaysurface = pygame.display.set_mode((1920,1080))
background = pygame.Surface((1920,1080))

mySurface = pygame.Surface((25,25))
mySurface.fill((0,255,0))

mySurface2 = pygame.Surface((25,25))
mySurface2.fill((255,0,0))

pos1 = [50,50]
pos2 = [50,150]
speed = 30

while True:
    for event in pygame.event.get():
        if event.type == QUIT:
            pygame.quit()
            sys.exit()
        if event.type == pygame.KEYDOWN:
            if event.key == pygame.K_RIGHT:
                pos1[0] += speed
            if event.key == pygame.K_LEFT:
                pos1[0] -= speed
            if event.key == pygame.K_DOWN:
                pos1[1] += speed
            if event.key == pygame.K_UP:
                pos1[1] -= speed
            if event.key == pygame.K_d:
                pos2[0] += speed
            if event.key == pygame.K_a:
                pos2[0] -= speed
            if event.key == pygame.K_s:
                pos2[1] += speed
            if event.key == pygame.K_w:
                pos2[1] -= speed
        
    displaysurface.blit(background, (0,0))
    displaysurface.blit(mySurface, pos1)
    displaysurface.blit(mySurface2, pos2)

    pygame.display.update()