pygame游戏之旅10：添加界面按键图形

通过获取鼠标的位置然后进行高亮显示：

mouse =pygame.mouse.get_pos()    if 150 + 100 > mouse[0] > 150 and 450 + 50 > mouse[1] > 450:        pygame.draw.rect(gameDisplay, bright_green, (150,450,100,50))    else:        pygame.draw.rect(gameDisplay, green, (150,450,100,50))    if 550 + 100 > mouse[0] > 550 and 450 + 50 > mouse[1] > 450:        pygame.draw.rect(gameDisplay, bright_red, (550,450,100,50))    else:        pygame.draw.rect(gameDisplay, red, (550,450,100,50))

全部代码：

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.Font('freesansbold.ttf',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 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.Font('freesansbold.ttf',115)        TextSurf, TextRect = text_objects('A bit Racey', largeText)        TextRect.center = ((display_width/2),(display_height/2))        gameDisplay.blit(TextSurf, TextRect)        mouse =pygame.mouse.get_pos()        if 150 + 100 > mouse[0] > 150 and 450 + 50 > mouse[1] > 450:            pygame.draw.rect(gameDisplay, bright_green, (150,450,100,50))        else:            pygame.draw.rect(gameDisplay, green, (150,450,100,50))        if 550 + 100 > mouse[0] > 550 and 450 + 50 > mouse[1] > 450:            pygame.draw.rect(gameDisplay, bright_red, (550,450,100,50))        else:            pygame.draw.rect(gameDisplay, red, (550,450,100,50))        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()

效果图（高亮图没有截图可以自己试试编译代码）：