I have a problem of rollback on many of my pygame projects. When I use pygame.time.Clock(FPS) at the end of my code, the entity i move has rollback ( the movement of the character is not smooth as it should be ) . I try without the pygameclock but now my character is moving too fast . I also add the convert at the end of the pygame.load.image but no difference at all ... What can I do ? No matter the number of FPS, rollback still there ... There is my code :
import pygame from pygame.locals import * pygame.init() screen_width = 1000 screen_height = 1000 FPS = 60 clock = pygame.time.Clock() screen = pygame.display.set_mode((screen_width, screen_height)) pygame.display.set_caption('Platformer') tile_size = 50 sun_img = pygame.image.load('sun.png').convert_alpha() bg_img = pygame.image.load('sky.png').convert() class Player(): def __init__(self,x,y): img = pygame.image.load('guy1.png').convert_alpha() self.image = pygame.transform.scale(img,(40,80)) self.rect = self.image.get_rect() self.rect.x = x self.rect.y = y def update(self): dx = 0 dy = 0 # ket pressed key = pygame.key.get_pressed() if key[K_LEFT]: dx -= 5 if key[K_RIGHT]: dx += 5 # check for collisions # update player position self.rect.x += dx self.rect.x += dy screen.blit(self.image,self.rect) class World(): def __init__(self, data): self.tile_list = [] dirt_img = pygame.image.load('dirt.png').convert() grass_img = pygame.image.load('grass.png').convert() row_count = 0 for row in data: col_count = 0 for tile in row: if tile == 1: img = pygame.transform.scale(dirt_img, (tile_size, tile_size)) img_rect = img.get_rect() img_rect.x = col_count * tile_size img_rect.y = row_count * tile_size tile = (img, img_rect) # tuple avec l'image et ses coordonnées self.tile_list.append(tile) if tile == 2: img = pygame.transform.scale(grass_img, (tile_size, tile_size)) img_rect = img.get_rect() img_rect.x = col_count * tile_size img_rect.y = row_count * tile_size tile = (img, img_rect) self.tile_list.append(tile) col_count += 1 row_count += 1 def draw(self): for tile in self.tile_list: screen.blit(tile[0], tile[1]) # tile[0] = l'image / tile[1] = les coordonnées world_data = [ [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1], [1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1], [1, 0, 0, 0, 0, 7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 8, 1], [1, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 7, 0, 0, 0, 0, 0, 2, 2, 1], [1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 0, 7, 0, 5, 0, 0, 0, 1], [1, 0, 0, 0, 0, 0, 0, 0, 5, 0, 0, 0, 2, 2, 0, 0, 0, 0, 0, 1], [1, 7, 0, 0, 2, 2, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1], [1, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1], [1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 7, 0, 0, 7, 0, 0, 0, 0, 1], [1, 0, 2, 0, 0, 7, 0, 7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1], [1, 0, 0, 2, 0, 0, 4, 0, 0, 0, 0, 3, 0, 0, 3, 0, 0, 0, 0, 1], [1, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 2, 2, 2, 2, 2, 0, 0, 0, 1], [1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1], [1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 7, 0, 7, 0, 0, 0, 0, 2, 0, 1], [1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1], [1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 2, 0, 2, 2, 2, 2, 2, 1], [1, 0, 0, 0, 0, 0, 2, 2, 2, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1], [1, 0, 0, 0, 0, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1], [1, 0, 0, 0, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1], [1, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] ] player = Player(100,screen_height - 130) world = World(world_data) run = True while run: screen.blit(bg_img, (0, 0)) screen.blit(sun_img, (100, 100)) world.draw() player.update() for event in pygame.event.get(): if event.type == pygame.QUIT: run = False pygame.display.update() clock.tick(FPS) pygame.quit()
