Question

我已经制作了这个代码，但是如果我复制它或其他东西我就无法制作更多按钮所以无论如何我可以获得更多按钮，就像我设置这个代码一样？是否可以放入def display_button（）并在循环中调用它？

def Main():

pygame.font.init()
font = pygame.font.Font(None, 25)
my_font = pygame.font.SysFont("segoe print", 16)

button_surf = pygame.Surface((60, 40))
button_rect = button_surf.get_rect()
button_surf.fill(WHITE)
button_rect.center = (500, 750)
txt_surf = my_font.render("LEFT", 1, BLACK)
txt_rect = txt_surf.get_rect(center=(30,20))
button_surf.blit(txt_surf, txt_rect)


Seconds = 0
Frame=0

gameExit = False
while not gameExit:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            pygame.quit()
            sys.exit()

    Screen.fill(BLACK)
    Screen.blit(button_surf, button_rect)

这是我的代码

Answer 1

您应该为按钮创建一个单独的功能：

def button(x, y, w, h, inactive, active, action=None):
    mouse = pygame.mouse.get_pos()
    click = pygame.mouse.get_pressed()

    if x + w > mouse[0] > x and y + h > mouse[1] > y:
        gameDisplay.blit(active, (x, y))
        if click[0] == 1 and action is not None:
            action()
    else:
        gameDisplay.blit(inactive, (x, y))

完成此操作后，您可以这样称呼它：

#For Example
button(100, 350, 195, 80, startBtn, startBtn_hover, game_loop)

这是每个参数的含义：

x：按钮的x坐标
y：按钮的y坐标
w：按钮的宽度
h：按钮的高度
活动：鼠标悬停在按钮上时按钮的图片
无效：按钮处于空闲状态时的图片
action：单击按钮时执行的功能

Answer 2

Just repeat the same code with different rect locations, and different variable names.

button_surf2 = pygame.Surface((60, 40))
button_rect2 = button_surf.get_rect()
button_surf2.fill(WHITE)
button_rect2.center = (600, 850)
txt_surf2 = my_font.render("LEFT", 1, BLACK)
txt_rect2 = txt_surf2.get_rect(center=(30,20))
button_surf2.blit(txt_surf2, txt_rect2)

Or, if you want it a bit neater, you could make a button class.

def Button:
    def __init__(self, width, height, center, text):
        self.surface = pygame.Surface((width, height))
        self.rect = self.surface.get_rect()
        self.surface.fill(WHITE)
        self.rect.center = center
        self.textSurf = my_font.render(text, 1, BLACK)
        self.textRect = self.textSurf.get_rect(center = (30, 20))
        self.surf.blit(self.textSurf, self.textRect)

Then you should make a list of all your buttons, and iterate through them when you want to draw, or check for clicks.

Answer 3

我认为你应该使用Groups

我使用这些，这是例子：

buttons = pygame.sprite.Group()
picnames = ["Play","Quit"]
place = y/2 - 10 * (len(picnames) - 1) - 8
for picname in picnames:
    button = pygame.sprite.Sprite()
    button.name = picname
    button.image = pygame.image.load("pic/" + picname + ".PNG").convert_alpha()
    button.rect = button.image.get_rect()
    button.rect.center = (x/2, place)
    place += 20
    buttons.add(button)

buttons.draw(screen)

Here完全是我的代码。

如何在pygame中创建多个按钮？

3 个答案: