pygame游戏之旅 按钮上添加文字的方法

本文为大家分享了pygame游戏之旅的第11篇，供大家参考，具体内容如下

定义一个button函数，将文字，颜色等作为参数。

def button (msg, x, y, w, h, ic, ac):
mouse =pygame.mouse.get_pos()
if x + w > mouse[0] > x and y + h > mouse[1] > y:
pygame.draw.rect(gameDisplay, ac, (x,y,w,h))
else:
pygame.draw.rect(gameDisplay, ic, (x,y,w,h))
smallText = pygame.font.Font("freesansbold.ttf", 20)
textSurf, textRect = text_objects(msg, smallText)
textRect.center = ( (x+(w/2)), (y+(h/2)))
gameDisplay.blit(textSurf, textRect)

全部代码为：

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 button (msg, x, y, w, h, ic, ac):
mouse =pygame.mouse.get_pos()
if x + w > mouse[0] > x and y + h > mouse[1] > y:
pygame.draw.rect(gameDisplay, ac, (x,y,w,h))
else:
pygame.draw.rect(gameDisplay, ic, (x,y,w,h))
smallText = pygame.font.Font("freesansbold.ttf", 20)
textSurf, textRect = text_objects(msg, smallText)
textRect.center = ( (x+(w/2)), (y+(h/2)))
gameDisplay.blit(textSurf, textRect)

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)
button("GO", 150, 450, 100, 50, green, bright_green)
button("Quit",550, 450, 100, 50, red, bright_red)
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：

来源：https://blog.csdn.net/pianzang5201/article/details/78404137