皮格姆的摄像机不动了

import pygame pygame.init() # global constants SCREEN_WIDTH, SCREEN_HEIGHT = 800, 640 RESOLUTION = (SCREEN_WIDTH, SCREEN_HEIGHT) BLACK = (0, 0, 0) WHITE = (255, 255, 255) BLUE = (0, 0, 255) class Player(pygame.sprite.Sprite): def __init__(self, x, y): # get sprite class attributes super(Player, self).__init__() # create the player image and hit box self.image = pygame.Surface([32, 32]) self.image.fill(BLACK) self.rect = self.image.get_rect() # the player pos self.rect.x = x self.rect.y = y self.facing = "left" # player movement vectors self.change_x = 0 self.change_y = 0 self.walls = None # current level the player is in self.level = None # change the movement vectors def change_speed(self, x, y): self.change_x += x self.change_y += y def update(self): # move the player # calc the gravity effect self.calc_gravity() # move left/right self.rect.x += self.change_x # see if we hit anything block_hit_list = pygame.sprite.spritecollide(self, self.level.block_list, False) for block in block_hit_list: # if we are moving right, # set our right side to the left side of the item we hit if self.change_x > 0: self.rect.right = block.rect.left elif self.change_x < 0: # otherwise if we are moving left, do the opposite self.rect.left = block.rect.right # move up/down self.rect.y += self.change_y # check and see if we hit anything block_hit_list = pygame.sprite.spritecollide(self, self.level.block_list, False) for block in block_hit_list: # reset our position based on the top/bottom of the object if self.change_y > 0: self.rect.bottom = block.rect.top elif self.change_y < 0: self.rect.top = block.rect.bottom # stop our vertical movement self.change_y = 0 def calc_gravity(self): # calculate effect of gravity if self.change_y == 0: self.change_y = 1 else: # maximum downward velocity if self.change_y < 10: # gravity self.change_y += 0.45 else: pass # the player's jump def jump(self): # move down a bit and see if there is a platform below us # move down 2 pixels because it doesn't work well if we only move down # 1 when working with a platform moving down self.rect.y += 2 block_hit_list = pygame.sprite.spritecollide(self, self.level.block_list, False) self.rect.y -= 2 # If it is ok to jump, set our speed upwards if len(block_hit_list) > 0 or self.rect.bottom >= SCREEN_HEIGHT: self.change_y = -7 # player-controlled movement def go_left(self): self.change_x = -5 self.facing = "left" def go_right(self): self.change_x = 5 self.facing = "right" def stop(self): self.change_x = 0 # blocks the player can stand on or to limit his movement in the map class Blocks(pygame.sprite.Sprite): # create the block def __init__(self, width, height): super(Blocks, self).__init__() self.image = pygame.Surface([width, height]) self.image.fill(BLUE) self.rect = self.image.get_rect() # super class for levels, each level will be a sub class of Level and have a different layout class Level(object): def __init__(self, player): self.block_list = pygame.sprite.Group() self.player = player # updates the level def update(self): self.block_list.update() # draw all the level objects def draw(self, screen): # the background screen.fill(WHITE) self.block_list.draw(screen) # level one sub class class LevelOne(Level): def __init__(self, player): super(LevelOne, self).__init__(player) self.level_width = 2500 self.level_height = 1400 # level one blocks blocks_loc = [[0, 0, 10, 800], [10, 790, 2500, 10], [2500, 0, 10, 800]] for x in blocks_loc: block = Blocks(x[2], x[3]) block.rect.x = x[0] block.rect.y = x[1] self.block_list.add(block) # camera class that follows the player around the screen class Camera(object): def __init__(self, width, height): self.camera = pygame.Rect(0, 0, width, height) self.width = width self.height = height def apply(self, entity): return entity.rect.move(self.camera.topleft) def update(self, target): x = -target.rect.x + int(SCREEN_WIDTH/2) y = -target.rect.y + int(SCREEN_HEIGHT/2) self.camera = pygame.Rect(x, y, self.width, self.height) # create the game screen screen = pygame.display.set_mode(RESOLUTION) # window title pygame.display.set_caption("test") # create the player object player = Player(600, 50) # create the levels levels_list = [] levels_list.append(LevelOne(player)) active_sprite_list = pygame.sprite.Group() current_level_num = 0 current_level = levels_list[current_level_num] player.level = current_level active_sprite_list.add(player) camera = Camera(current_level.level_width, current_level.level_height) # the clock will be used for the frame rate of the game clock = pygame.time.Clock() # flag to know when the game is done done = False while not done: for event in pygame.event.get(): if event.type == pygame.QUIT: done = True if event.type == pygame.KEYDOWN: if event.key == pygame.K_LEFT: player.go_left() if event.key == pygame.K_RIGHT: player.go_right() if event.key == pygame.K_UP: player.jump() if event.key == pygame.K_ESCAPE: done = True if event.type == pygame.KEYUP: if event.key == pygame.K_LEFT and player.change_x < 0: player.stop() if event.key == pygame.K_RIGHT and player.change_x > 0: player.stop() # update part current_level.update() active_sprite_list.update() camera.update(player) # draw part current_level.draw(screen) for sprite in active_sprite_list: screen.blit(sprite.image, camera.apply(sprite)) # refresh part pygame.display.flip() clock.tick(60) pygame.quit()

1条回答

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1楼 · 发布于 2024-06-01 09:34:08

还必须将摄影机偏移应用于标高中的块精灵。一个简单的解决方案是将摄影机传递给level实例的draw方法：

def draw(self, screen, camera):
    screen.fill(WHITE)
    for block in current_level.block_list:
        screen.blit(block.image, camera.apply(block))

您还可以将级别中的块添加到active_sprite_list。你知道吗

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