pygame游戏之旅 调用按钮实现游戏开始功能

本文为大家分享了pygame游戏之旅的第12篇，供大家参考，具体内容如下

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 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.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：

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