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众所周知，Google浏览器再没网的时候都会有一个小恐龙的游戏一按空格他就会跳起来，你每跳过一个障碍物就可以得到一分，要是不小心碰到的话就游戏结束啦。
今天我们就利用python来还原小恐龙这一游戏
首先我们要导入写这个会用到的库，最主要的是pygame这个咯
import sys
import math
import time
import random
import pygame
from pygame.locals import *
from Scene import Scene
from Obstacle import Plant, Ptera
from Dinosaur import Dinosaur
?定义一些常量
BACKGROUND = (250, 250, 250)
WIDTH = 800
HEIGHT = 400
?显示Gameover界面
def show_gameover(screen):
screen.fill(BACKGROUND)
gameover_img = pygame.image.load('./images/others/gameover.png').convert_alpha()
gameover_rect = gameover_img.get_rect()
gameover_rect.left, gameover_rect.top = WIDTH//3, int(HEIGHT/2.4)
screen.blit(gameover_img, gameover_rect)
restart_img = pygame.image.load('./images/others/restart.png').convert_alpha()
restart_rect = restart_img.get_rect()
restart_rect.left, restart_rect.top = int(WIDTH/2.25), int(HEIGHT/2)
screen.blit(restart_img, restart_rect)
pygame.display.update()
while True:
for event in pygame.event.get():
if event.type == QUIT:
sys.exit()
pygame.quit()
if event.type == pygame.MOUSEBUTTONDOWN:
mouse_pos = pygame.mouse.get_pos()
if mouse_pos[0] < restart_rect.right and mouse_pos[0] > restart_rect.left and\
mouse_pos[1] < restart_rect.bottom and mouse_pos[1] > restart_rect.top:
return True
将Score转为生成障碍物的概率
def sigmoid(score):
probability = 1 / (1 + math.exp(-score))
return min(probability, 0.6)
主函数
初始化窗口
pygame.init()
screen = pygame.display.set_mode((WIDTH, HEIGHT))
pygame.display.set_caption("QQ群：932574150")
clock = pygame.time.Clock()
?得分
score = 0
?加载一些自己喜欢的素材
jump_sound = pygame.mixer.Sound("./music/jump.wav")
jump_sound.set_volume(6)
die_sound = pygame.mixer.Sound("./music/die.wav")
die_sound.set_volume(6)
pygame.mixer.init()
pygame.mixer.music.load("./music/bg_music.mp3")
pygame.mixer.music.set_volume(0.6)
pygame.mixer.music.play(-1)
font = pygame.font.Font('./font/simkai.ttf', 20)
?实例化
dinosaur = Dinosaur(WIDTH, HEIGHT)
scene = Scene(WIDTH, HEIGHT)
plants = pygame.sprite.Group()
pteras = pygame.sprite.Group()
?设置产生障碍事件
GenPlantEvent = pygame.constants.USEREVENT + 0
pygame.time.set_timer(GenPlantEvent, 1500)
GenPteraEvent = pygame.constants.USEREVENT + 1
pygame.time.set_timer(GenPteraEvent, 5000)
检测游戏是否结束了
running = True
?检测是否产生障碍物false
flag_plant = False
flag_ptera = False
t0 = time.time()
主循环
while running:
for event in pygame.event.get():
if event.type == QUIT:
sys.exit()
pygame.quit()
if event.type == GenPlantEvent:
flag_plant = True
if event.type == GenPteraEvent:
if score > 50:
flag_ptera = True
key_pressed = pygame.key.get_pressed()
if key_pressed[pygame.K_SPACE]:
dinosaur.is_jumping = True
jump_sound.play()
screen.fill(BACKGROUND)
time_passed = time.time() - t0
t0 = time.time()
?场景
scene.move()
scene.draw(screen)
小恐龙
dinosaur.is_running = True
if dinosaur.is_jumping:
dinosaur.be_afraid()
dinosaur.jump(time_passed)
dinosaur.draw(screen)
障碍物植物
if random.random() < sigmoid(score) and flag_plant:
plant = Plant(WIDTH, HEIGHT)
plants.add(plant)
flag_plant = False
for plant in plants:
plant.move()
if dinosaur.rect.left > plant.rect.right and not plant.added_score:
score += 1
plant.added_score = True
if plant.rect.right < 0:
plants.remove(plant)
continue
plant.draw(screen)
?障碍物飞龙
if random.random() < sigmoid(score) and flag_ptera:
if len(pteras) > 1:
continue
ptera = Ptera(WIDTH, HEIGHT)
pteras.add(ptera)
flag_ptera = False
for ptera in pteras:
ptera.move()
if dinosaur.rect.left > ptera.rect.right and not ptera.added_score:
score += 5
ptera.added_score = True
if ptera.rect.right < 0:
pteras.remove(ptera)
continue
ptera.draw(screen)
检测是否碰撞上
if pygame.sprite.spritecollide(dinosaur, plants, False) or pygame.sprite.spritecollide(dinosaur, pteras, False):
die_sound.play()
running = False
显示得分
score_text = font.render("Score: "+str(score), 1, (0, 0, 0))
screen.blit(score_text, [10, 10])
pygame.display.flip()
clock.tick(60)
res = show_gameover(screen)
return res
?运行
if __name__ == '__main__':
res = True
while res:
res = main()
?这样我们就可以得到我们的Google小恐龙游戏了，不对应该说是模仿出来了，大家快去试试吧。
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