Python 决定如何首先选择它们并实现它和取消选择），然后像单个图像一样移动它们（请记住：移动到当前鼠标位置+-偏移，而不是在鼠标方向上每次移动一个像素）。[我没有使用pygame，所以我的评论是一般性的，关于它在图像渲染和处理鼠标事件中的工作原理-但我使用了两种编译

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决定如何首先选择它们并实现它和取消选择），然后像单个图像一样移动它们（请记住：移动到当前鼠标位置+-偏移，而不是在鼠标方向上每次移动一个像素）。[我没有使用pygame，所以我的评论是一般性的，关于它在图像渲染和处理鼠标事件中的工作原理-但我使用了两种编译语言，而不是解释Python，因此如果Python中有什么不同，请纠正我。]你必须比较

if even.type==pygame.MOUSEBUTTONDOWN:drag=1

在

while

循环中。

pygame

是低级库，而不是游戏引擎，所以它需要50多行代码才能使事情变得简单。嘿，sloth，回顾这一点，他想将图像而不是字母合并到片段中，我对此感到困惑图像和矩形之间的区别，你能帮上忙吗？矩形只是一个，嗯，一个矩形，有位置（x，y）和大小（宽度，高度）。当谈到图像时，假设图像是计算机上的图像文件，要使用pygame对其进行处理，必须从该图像创建曲面。通常使用pygame.image.load（）之类的工具从磁盘加载图像。请注意，当使用font.render（）时，就像我在上面的例子中所做的那样，该函数的结果也是一个曲面。然后你可以将曲面blit到其他曲面上，复制它们，用颜色填充它们，调整它们的大小等。通常，在使用pygame时，你总是使用一个曲面……和一个矩形。曲面保存图像，矩形保存ima的位置和大小Pygame提供了一种将两者结合使用的简洁方法：sprite类。sprite有一个image属性和一个rect属性，您可以通过更改rect来更改sprite的位置等。Pygame可以通过group类为您处理绘制和更新sprite。请看一下这个示例：作为第一步，如果您查看draw\p在上面的ieces函数中，您可以看到s1和s2变量。您可能会从驱动器加载图像并使用该曲面，而不是使用font.render创建它们。

import pygame

# --- constants ---

RED = (213, 43, 67)

# --- main ---

pygame.init()
screen = pygame.display.set_mode((800,600))

chew1 = pygame.image.load("chew.png")
chew1_rect = chew1.get_rect(x=400, y=400)

chew2 = pygame.image.load("chew.png") # use different image
chew2_rect = chew1.get_rect(x=200, y=200)

drag = 0

# --- mainloop ---

clock = pygame.time.Clock()
game_exit = False

while not game_exit:

    # - events -
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            game_exit = True

        elif event.type == pygame.MOUSEBUTTONDOWN:
            drag = 1
        elif event.type == pygame.MOUSEBUTTONUP:
            drag = 0
        elif event.type == pygame.MOUSEMOTION:
            if drag:
                chew1_rect.move_ip(event.rel)
                chew2_rect.move_ip(event.rel)

    # - draws -            
    screen.fill(RED)
    screen.blit(chew1, chew1_rect)
    screen.blit(chew2, chew2_rect)
    pygame.display.update()

    # - FPS -
    clock.tick(30)

# --- end ---

pygame.quit()

import pygame

# --- constants ---

RED = (213, 43, 67)

# --- classes ---

class Item(pygame.sprite.Sprite):

    def __init__(self, image, x, y):
        super().__init__()
        self.image = pygame.image.load(image)
        self.rect = self.image.get_rect(x=x, y=y)

    def update(self, rel):
        self.rect.move_ip(rel)

# --- main ---

pygame.init()
screen = pygame.display.set_mode((800,600))

items = pygame.sprite.Group(
    Item("chew.png", 200, 200),
    Item("chew.png", 400, 200), 
    Item("chew.png", 200, 400),
    Item("chew.png", 400, 400),
)

drag = 0

# --- mainloop ---

clock = pygame.time.Clock()
game_exit = False

while not game_exit:

    # - events -
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            game_exit = True
        elif event.type == pygame.MOUSEBUTTONDOWN:
            drag = 1
        elif event.type == pygame.MOUSEBUTTONUP:
            drag = 0
        elif event.type == pygame.MOUSEMOTION:
            if drag:
                items.update(event.rel)

    # - draws -            
    screen.fill(RED)
    items.draw(screen)
    pygame.display.update()

    # - FPS -
    clock.tick(30)

# --- end ---

pygame.quit()

import pygame

# --- constants ---

RED = (213, 43, 67)

# --- classes ---

class Item(pygame.sprite.Sprite):

    def __init__(self, image, x, y):
        super().__init__()
        self.image = pygame.image.load(image)
        self.rect = self.image.get_rect(x=x, y=y)

    def update(self, rel):
        self.rect.move_ip(rel)

# --- main ---

pygame.init()
screen = pygame.display.set_mode((800,600))

items = pygame.sprite.Group(
    Item("chew.png", 150, 50),
    Item("chew.png", 400, 50), 
    Item("chew.png", 150, 300),
    Item("chew.png", 400, 300),
)

dragged = pygame.sprite.Group()

# --- mainloop ---

clock = pygame.time.Clock()
game_exit = False

while not game_exit:

    # - events -
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            game_exit = True
        elif event.type == pygame.MOUSEBUTTONDOWN:
            dragged.add(x for x in items if x.rect.collidepoint(event.pos))          
        elif event.type == pygame.MOUSEBUTTONUP:
            dragged.empty()
        elif event.type == pygame.MOUSEMOTION:
            dragged.update(event.rel)

    # - draws -            
    screen.fill(RED)
    items.draw(screen)
    pygame.display.update()

    # - FPS -
    clock.tick(30)

# --- end ---

pygame.quit() 

import pyglet

window = pyglet.window.Window(width=800, height=600)

batch = pyglet.graphics.Batch()
items = [
    pyglet.sprite.Sprite(pyglet.resource.image('chew.png'), x=200, y=100, batch=batch),
    pyglet.sprite.Sprite(pyglet.resource.image('chew.png'), x=400, y=300, batch=batch),
]

@window.event
def on_draw():
    #window.clear()
    pyglet.graphics.draw(4, pyglet.gl.GL_QUADS, ('v2f', [0,0, 800,0, 800,600, 0,600]), ('c3B', [213,43,67, 213,43,67, 213,43,67, 213,43,67])) #RED = (213, 43, 67)
    batch.draw()

@window.event
def on_mouse_drag(x, y, dx, dy, buttons, modifiers):
    for i in items:
        i.x += dx
        i.y += dy

pyglet.app.run()

import pygame

def main():
    screen = pygame.display.set_mode((640, 480))
    clock = pygame.time.Clock()
    while True:
        events = pygame.event.get()
        for e in events:
            if e.type == pygame.QUIT:
                return
        screen.fill(pygame.Color('grey'))
        pygame.display.flip()
        clock.tick(60)

if __name__ == '__main__':
    main()

import pygame

TILESIZE = 32

def create_board_surf():
    board_surf = pygame.Surface((TILESIZE*8, TILESIZE*8))
    dark = False
    for y in range(8):
        for x in range(8):
            rect = pygame.Rect(x*TILESIZE, y*TILESIZE, TILESIZE, TILESIZE)
            pygame.draw.rect(board_surf, pygame.Color('black' if dark else 'white'), rect)
            dark = not dark
        dark = not dark
    return board_surf

def create_board():
    board = []
    for y in range(8):
        board.append([])
        for x in range(8):
            board[y].append(None)
    return board

def main():
    screen = pygame.display.set_mode((640, 480))
    board = create_board()
    board_surf = create_board_surf()
    clock = pygame.time.Clock()
    while True:
        events = pygame.event.get()
        for e in events:
            if e.type == pygame.QUIT:
                return
        screen.fill(pygame.Color('grey'))
        screen.blit(board_surf, (0, 0))
        pygame.display.flip()
        clock.tick(60)

if __name__ == '__main__':
    main()

import pygame

TILESIZE = 32
BOARD_POS = (10, 10)

def create_board_surf():
    board_surf = pygame.Surface((TILESIZE*8, TILESIZE*8))
    dark = False
    for y in range(8):
        for x in range(8):
            rect = pygame.Rect(x*TILESIZE, y*TILESIZE, TILESIZE, TILESIZE)
            pygame.draw.rect(board_surf, pygame.Color('black' if dark else 'white'), rect)
            dark = not dark
        dark = not dark
    return board_surf

def create_board():
    board = []
    for y in range(8):
        board.append([])
        for x in range(8):
            board[y].append(None)
    return board

def get_square_under_mouse(board):
    mouse_pos = pygame.Vector2(pygame.mouse.get_pos()) - BOARD_POS
    x, y = [int(v // TILESIZE) for v in mouse_pos]
    try: 
        if x >= 0 and y >= 0: return (board[y][x], x, y)
    except IndexError: pass
    return None, None, None

def main():
    screen = pygame.display.set_mode((640, 480))
    board = create_board()
    board_surf = create_board_surf()
    clock = pygame.time.Clock()
    while True:
        events = pygame.event.get()
        for e in events:
            if e.type == pygame.QUIT:
                return

        piece, x, y = get_square_under_mouse(board)

        screen.fill(pygame.Color('grey'))
        screen.blit(board_surf, BOARD_POS)

        if x != None:
            rect = (BOARD_POS[0] + x * TILESIZE, BOARD_POS[1] + y * TILESIZE, TILESIZE, TILESIZE)
            pygame.draw.rect(screen, (255, 0, 0, 50), rect, 2)
        pygame.display.flip()
        clock.tick(60)

if __name__ == '__main__':
    main()

import pygame

TILESIZE = 32
BOARD_POS = (10, 10)

def create_board_surf():
    board_surf = pygame.Surface((TILESIZE*8, TILESIZE*8))
    dark = False
    for y in range(8):
        for x in range(8):
            rect = pygame.Rect(x*TILESIZE, y*TILESIZE, TILESIZE, TILESIZE)
            pygame.draw.rect(board_surf, pygame.Color('darkgrey' if dark else 'beige'), rect)
            dark = not dark
        dark = not dark
    return board_surf

def get_square_under_mouse(board):
    mouse_pos = pygame.Vector2(pygame.mouse.get_pos()) - BOARD_POS
    x, y = [int(v // TILESIZE) for v in mouse_pos]
    try: 
        if x >= 0 and y >= 0: return (board[y][x], x, y)
    except IndexError: pass
    return None, None, None

def create_board():
    board = []
    for y in range(8):
        board.append([])
        for x in range(8):
            board[y].append(None)

    for x in range(0, 8):
        board[1][x] = ('black', 'pawn')
    for x in range(0, 8):
        board[6][x] = ('white', 'pawn') 

    return board

def draw_pieces(screen, board, font):
    for y in range(8):
        for x in range(8): 
            piece = board[y][x]
            if piece:
                color, type = piece
                s1 = font.render(type[0], True, pygame.Color(color))
                s2 = font.render(type[0], True, pygame.Color('darkgrey'))
                pos = pygame.Rect(BOARD_POS[0] + x * TILESIZE+1, BOARD_POS[1] + y * TILESIZE + 1, TILESIZE, TILESIZE)
                screen.blit(s2, s2.get_rect(center=pos.center).move(1, 1))
                screen.blit(s1, s1.get_rect(center=pos.center))

def draw_selector(screen, piece, x, y):
    if piece != None:
        rect = (BOARD_POS[0] + x * TILESIZE, BOARD_POS[1] + y * TILESIZE, TILESIZE, TILESIZE)
        pygame.draw.rect(screen, (255, 0, 0, 50), rect, 2)

def main():
    pygame.init()
    font = pygame.font.SysFont('', 32)
    screen = pygame.display.set_mode((640, 480))
    board = create_board()
    board_surf = create_board_surf()
    clock = pygame.time.Clock()
    while True:
        events = pygame.event.get()
        for e in events:
            if e.type == pygame.QUIT:
                return

        piece, x, y = get_square_under_mouse(board)

        screen.fill(pygame.Color('grey'))
        screen.blit(board_surf, BOARD_POS)
        draw_pieces(screen, board, font)
        draw_selector(screen, piece, x, y)

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

if __name__ == '__main__':
    main()

import pygame

TILESIZE = 32
BOARD_POS = (10, 10)

def create_board_surf():
    board_surf = pygame.Surface((TILESIZE*8, TILESIZE*8))
    dark = False
    for y in range(8):
        for x in range(8):
            rect = pygame.Rect(x*TILESIZE, y*TILESIZE, TILESIZE, TILESIZE)
            pygame.draw.rect(board_surf, pygame.Color('darkgrey' if dark else 'beige'), rect)
            dark = not dark
        dark = not dark
    return board_surf

def get_square_under_mouse(board):
    mouse_pos = pygame.Vector2(pygame.mouse.get_pos()) - BOARD_POS
    x, y = [int(v // TILESIZE) for v in mouse_pos]
    try: 
        if x >= 0 and y >= 0: return (board[y][x], x, y)
    except IndexError: pass
    return None, None, None

def create_board():
    board = []
    for y in range(8):
        board.append([])
        for x in range(8):
            board[y].append(None)

    for x in range(0, 8):
        board[1][x] = ('black', 'pawn')
    for x in range(0, 8):
        board[6][x] = ('white', 'pawn') 

    return board

def draw_pieces(screen, board, font, selected_piece):
    sx, sy = None, None
    if selected_piece:
        piece, sx, sy = selected_piece

    for y in range(8):
        for x in range(8): 
            piece = board[y][x]
            if piece:
                selected = x == sx and y == sy
                color, type = piece
                s1 = font.render(type[0], True, pygame.Color('red' if selected else color))
                s2 = font.render(type[0], True, pygame.Color('darkgrey'))
                pos = pygame.Rect(BOARD_POS[0] + x * TILESIZE+1, BOARD_POS[1] + y * TILESIZE + 1, TILESIZE, TILESIZE)
                screen.blit(s2, s2.get_rect(center=pos.center).move(1, 1))
                screen.blit(s1, s1.get_rect(center=pos.center))

def draw_selector(screen, piece, x, y):
    if piece != None:
        rect = (BOARD_POS[0] + x * TILESIZE, BOARD_POS[1] + y * TILESIZE, TILESIZE, TILESIZE)
        pygame.draw.rect(screen, (255, 0, 0, 50), rect, 2)

def draw_drag(screen, board, selected_piece, font):
    if selected_piece:
        piece, x, y = get_square_under_mouse(board)
        if x != None:
            rect = (BOARD_POS[0] + x * TILESIZE, BOARD_POS[1] + y * TILESIZE, TILESIZE, TILESIZE)
            pygame.draw.rect(screen, (0, 255, 0, 50), rect, 2)

        color, type = selected_piece[0]
        s1 = font.render(type[0], True, pygame.Color(color))
        s2 = font.render(type[0], True, pygame.Color('darkgrey'))
        pos = pygame.Vector2(pygame.mouse.get_pos())
        screen.blit(s2, s2.get_rect(center=pos + (1, 1)))
        screen.blit(s1, s1.get_rect(center=pos))
        selected_rect = pygame.Rect(BOARD_POS[0] + selected_piece[1] * TILESIZE, BOARD_POS[1] + selected_piece[2] * TILESIZE, TILESIZE, TILESIZE)
        pygame.draw.line(screen, pygame.Color('red'), selected_rect.center, pos)
        return (x, y)

def main():
    pygame.init()
    font = pygame.font.SysFont('', 32)
    screen = pygame.display.set_mode((640, 480))
    board = create_board()
    board_surf = create_board_surf()
    clock = pygame.time.Clock()
    selected_piece = None
    drop_pos = None
    while True:
        piece, x, y = get_square_under_mouse(board)
        events = pygame.event.get()
        for e in events:
            if e.type == pygame.QUIT:
                return
            if e.type == pygame.MOUSEBUTTONDOWN:
                if piece != None:
                    selected_piece = piece, x, y
            if e.type == pygame.MOUSEBUTTONUP:
                if drop_pos:
                    piece, old_x, old_y = selected_piece
                    board[old_y][old_x] = 0
                    new_x, new_y = drop_pos
                    board[new_y][new_x] = piece
                selected_piece = None
                drop_pos = None

        screen.fill(pygame.Color('grey'))
        screen.blit(board_surf, BOARD_POS)
        draw_pieces(screen, board, font, selected_piece)
        draw_selector(screen, piece, x, y)
        drop_pos = draw_drag(screen, board, selected_piece, font)

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

if __name__ == '__main__':
    main()