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 pygame
import time
import random

pygame.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 = 100

display_width = 800
display_height = 600


gameDisplay = 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）：