pygame游戏之旅12：调用按钮实现游戏开始功能

实现点击功能：

click = pygame.mouse.get_pressed()print(click)if x + w > mouse[0] > x and y + h > mouse[1] > y:    pygame.draw.rect(gameDisplay, ac, (x,y,w,h))    if click[0] == 1 and action != None:        action()

修改显示文字：

pygame.font.SysFont('comicsansms',115)

源代码：

import pygameimport timeimport randompygame.init()white = (255,255,255)black = (0,0,0)gray = (128,128,128)red = (200,0,0)green = (0,200,0)bright_red = (255,0,0)bright_green = (0,255,0)blue = (0,0,255)car_width = 100display_width = 800display_height = 600gameDisplay = pygame.display.set_mode( (display_width,display_height) )pygame.display.set_caption('A bit Racey')clock = pygame.time.Clock()carImg = pygame.image.load('car.png')def things_dodged(count):    font = pygame.font.SysFont(None, 25)    text = font.render("Dodged:"+str(count), True, black)    gameDisplay.blit(text,(0,0))def things(thingx, thingy, thingw, thingh, color):    pygame.draw.rect(gameDisplay, color, [thingx, thingy, thingw, thingh])def car(x, y):    gameDisplay.blit(carImg, (x,y))    def text_objects(text, font):    textSurface = font.render(text, True, black)    return textSurface, textSurface.get_rect()def message_diaplay(text):    largeText = pygame.font.SysFont('comicsansms',115)    TextSurf, TextRect = text_objects(text, largeText)    TextRect.center = ((display_width/2),(display_height/2))    gameDisplay.blit(TextSurf, TextRect)    pygame.display.update()    time.sleep(2)    game_loop()def crash():    message_diaplay('You Crashed!')def button (msg, x, y, w, h, ic, ac, action=None):        mouse =pygame.mouse.get_pos()        click = pygame.mouse.get_pressed()        print(click)        if x + w > mouse[0] > x and y + h > mouse[1] > y:            pygame.draw.rect(gameDisplay, ac, (x,y,w,h))            if click[0] == 1 and action != None:                action()##                if action == "play":##                    action()##                if action == "quit":##                    pygame.quit()##                    quit()        else:            pygame.draw.rect(gameDisplay, ic, (x,y,w,h))        smallText = pygame.font.SysFont('comicsansms', 20)        textSurf, textRect = text_objects(msg, smallText)        textRect.center = ( (x+(w/2)), (y+(h/2)))        gameDisplay.blit(textSurf, textRect)def quitgame():    pygame.quit()    quit()def game_intro():    intro = True    while intro:        for event in pygame.event.get():            print(event)            if event.type == pygame.QUIT:                pygame.quit()                quit()        gameDisplay.fill(white)        largeText = pygame.font.SysFont('comicsansms',115)        TextSurf, TextRect = text_objects('A bit Racey', largeText)        TextRect.center = ((display_width/2),(display_height/2))        gameDisplay.blit(TextSurf, TextRect)        button("GO", 150, 450, 100, 50, green, bright_green,game_loop)        button("Quit",550, 450, 100, 50, red, bright_red,quitgame)        pygame.display.update()        clock.tick(15)def game_loop():    x = display_width * 0.45    y = display_height * 0.8    x_change = 0    dodged = 0    gameExit = False    thing_startx = random.randrange(0, display_width)    thing_starty = -600    thing_speed = 7    thing_width = 100    thing_height = 100    while not gameExit:        for event in pygame.event.get():            if event.type == pygame.QUIT:                pygame.quit()                quit()            if event.type == pygame.KEYDOWN:                if event.key == pygame.K_LEFT:                    x_change = -5                elif event.key == pygame.K_RIGHT:                    x_change = 5            if event.type == pygame.KEYUP:                if event.key == pygame.K_LEFT or event.key == pygame.K_RIGHT:                    x_change = 0            print(event)        x += x_change        gameDisplay.fill(white)        things(thing_startx, thing_starty, thing_width, thing_height, black)        thing_starty += thing_speed                car(x,y)        things_dodged(dodged)        if x > display_width - car_width or x < 0:            gameExit = True        if thing_starty > display_height:            thing_starty = 0 - thing_height            thing_startx = random.randrange(0, display_width)            dodged += 1            thing_speed += 1            thing_width += (dodged * 1.2)        if y < thing_starty + thing_height:            print('y crossover')            if x > thing_startx and x < thing_startx + thing_width or x + car_width > thing_startx and x + car_width < thing_startx + thing_width:                print('x crossover')                crash()        pygame.display.update()        clock.tick(60)#crash()game_intro()game_loop()pygame.quit()quit()

结果图：