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if event.type == pygame.KEYDOWN:
if event.key == pygame.K_LEFT:
PlayerX_Change += -3
if event.key == pygame.K_RIGHT:
PlayerX_Change += 3
if event.type == pygame.KEYUP:
if event.key == pygame.K_LEFT or event.key == pygame.K_RIGHT:
PlayerX_Change = 0
playerX += PlayerX_Change