【Python】用Python写个开心消消乐小游戏

提到开心消消乐这款小游戏,相信大家都不陌生,其曾在 2015 年获得过玩家最喜爱的移动单机游戏奖,受欢迎程度可见一斑,本文我们使用 Python 来做个简单的消消乐小游戏。

实现

消消乐的构成主要包括三部分:游戏主体、计分器、计时器,下面来看一下具体实现。

先来看一下游戏所需 Python 库。

python">import os

import sys

import time

import pygame

import random

定义一些常量,比如:窗口宽高、网格行列数等,代码如下:

WIDTH = 400

HEIGHT = 400

NUMGRID = 8

GRIDSIZE = 36

XMARGIN = (WIDTH - GRIDSIZE * NUMGRID) // 2

YMARGIN = (HEIGHT - GRIDSIZE * NUMGRID) // 2

ROOTDIR = os.getcwd()

FPS = 30

接着创建一个主窗口,代码如下:

pygame.init()

screen = pygame.display.set_mode((WIDTH, HEIGHT))

pygame.display.set_caption('消消乐')

看一下效果:

【Python】用Python写个开心消消乐小游戏

再接着在窗口中画一个 8 x 8 的网格,代码如下:

screen.fill((255, 255, 220))

# 游戏界面的网格绘制

def drawGrids(self):

for x in range(NUMGRID):

for y in range(NUMGRID):

rect = pygame.Rect((XMARGIN+x*GRIDSIZE, YMARGIN+y*GRIDSIZE, GRIDSIZE, GRIDSIZE))

self.drawBlock(rect, color=(255, 165, 0), size=1

# 画矩形 block 框

def drawBlock(self, block, color=(255, 0, 0), size=2):

pygame.draw.rect(self.screen, color, block, size)

看一下效果:

【Python】用Python写个开心消消乐小游戏

再接着在网格中随机放入各种拼图块,代码如下:

while True:

self.all_gems = []

self.gems_group = pygame.sprite.Group()

for x in range(NUMGRID):

self.all_gems.append([])

for y in range(NUMGRID):

gem = Puzzle(img_path=random.choice(self.gem_imgs), size=(GRIDSIZE, GRIDSIZE), position=[XMARGIN+x*GRIDSIZE, YMARGIN+y*GRIDSIZE-NUMGRID*GRIDSIZE], downlen=NUMGRID*GRIDSIZE)

self.all_gems[x].append(gem)

self.gems_group.add(gem)

if self.isMatch()[0] == 0:

break

看一下效果:

【Python】用Python写个开心消消乐小游戏

再接着加入计分器和计时器,代码如下:

# 显示得分

def drawScore(self):

score_render = self.font.render('分数:'+str(self.score), 1, (85, 65, 0))

rect = score_render.get_rect()

rect.left, rect.top = (55, 15)

self.screen.blit(score_render, rect)

# 显示加分

def drawAddScore(self, add_score):

score_render = self.font.render('+'+str(add_score), 1, (255, 100, 100))

rect = score_render.get_rect()

rect.left, rect.top = (250, 250)

self.screen.blit(score_render, rect)

# 显示剩余时间

def showRemainingTime(self):

remaining_time_render = self.font.render('倒计时: %ss' % str(self.remaining_time), 1, (85, 65, 0))

rect = remaining_time_render.get_rect()

rect.left, rect.top = (WIDTH-190, 15)

self.screen.blit(remaining_time_render, rect)

看一下效果:

【Python】用Python写个开心消消乐小游戏

当设置的游戏时间用尽时,我们可以生成一些提示信息,代码如下:

while True:

for event in pygame.event.get():

if event.type == pygame.QUIT:

pygame.quit()

sys.exit()

if event.type == pygame.KEYUP and event.key == pygame.K_r:

flag = True

if flag:

break

screen.fill((255, 255, 220))

text0 = '最终得分: %s' % score

text1 = '按 R 键重新开始'

y = 140

for idx, text in enumerate([text0, text1]):

text_render = font.render(text, 1, (85, 65, 0))

rect = text_render.get_rect()

if idx == 0:

rect.left, rect.top = (100, y)

elif idx == 1:

rect.left, rect.top = (100, y)

y += 60

screen.blit(text_render, rect)

pygame.display.update()

看一下效果:

【Python】用Python写个开心消消乐小游戏

说完了游戏图形化界面相关的部分,我们再看一下游戏的主要处理逻辑。

我们通过鼠标来操纵拼图块,因此程序需要检查有无拼图块被选中,代码实现如下:

def checkSelected(self, position):

for x in range(NUMGRID):

for y in range(NUMGRID):

if self.getGemByPos(x, y).rect.collidepoint(*position):

return [x, y]

return None

我们需要将鼠标连续选择的拼图块进行位置交换,代码实现如下:

def swapGem(self, gem1_pos, gem2_pos):

margin = gem1_pos[0] - gem2_pos[0] + gem1_pos[1] - gem2_pos[1]

if abs(margin) != 1:

return False

gem1 = self.getGemByPos(*gem1_pos)

gem2 = self.getGemByPos(*gem2_pos)

if gem1_pos[0] - gem2_pos[0] == 1:

gem1.direction = 'left'

gem2.direction = 'right'

elif gem1_pos[0] - gem2_pos[0] == -1:

gem2.direction = 'left'

gem1.direction = 'right'

elif gem1_pos[1] - gem2_pos[1] == 1:

gem1.direction = 'up'

gem2.direction = 'down'

elif gem1_pos[1] - gem2_pos[1] == -1:

gem2.direction = 'up'

gem1.direction = 'down'

gem1.target_x = gem2.rect.left

gem1.target_y = gem2.rect.top

gem1.fixed = False

gem2.target_x = gem1.rect.left

gem2.target_y = gem1.rect.top

gem2.fixed = False

self.all_gems[gem2_pos[0]][gem2_pos[1]] = gem1

self.all_gems[gem1_pos[0]][gem1_pos[1]] = gem2

return True

每一次交换拼图块时,我们需要判断是否有连续一样的三个及以上拼图块,代码实现如下:

def isMatch(self):

for x in range(NUMGRID):

for y in range(NUMGRID):

if x + 2 < NUMGRID:

if self.getGemByPos(x, y).type == self.getGemByPos(x+1, y).type == self.getGemByPos(x+2, y).type:

return [1, x, y]

if y + 2 < NUMGRID:

if self.getGemByPos(x, y).type == self.getGemByPos(x, y+1).type == self.getGemByPos(x, y+2).type:

return [2, x, y]

return [0, x, y]

当出现三个及以上拼图块时,需要将这些拼图块消除,代码实现如下:

def removeMatched(self, res_match):

if res_match[0] > 0:

self.generateNewGems(res_match)

self.score += self.reward

return self.reward

return 0

将匹配的拼图块消除之后,我们还需要随机生成新的拼图块,代码实现如下:

def generateNewGems(self, res_match):

if res_match[0] == 1:

start = res_match[2]

while start > -2:

for each in [res_match[1], res_match[1]+1, res_match[1]+2]:

gem = self.getGemByPos(*[each, start])

if start == res_match[2]:

self.gems_group.remove(gem)

self.all_gems[each][start] = None

elif start >= 0:

gem.target_y += GRIDSIZE

gem.fixed = False

gem.direction = 'down'

self.all_gems[each][start+1] = gem

else:

gem = Puzzle(img_path=random.choice(self.gem_imgs), size=(GRIDSIZE, GRIDSIZE), position=[XMARGIN+each*GRIDSIZE, YMARGIN-GRIDSIZE], downlen=GRIDSIZE)

self.gems_group.add(gem)

self.all_gems[each][start+1] = gem

start -= 1

elif res_match[0] == 2:

start = res_match[2]

while start > -4:

if start == res_match[2]:

for each in range(0, 3):

gem = self.getGemByPos(*[res_match[1], start+each])

self.gems_group.remove(gem)

self.all_gems[res_match[1]][start+each] = None

elif start >= 0:

gem = self.getGemByPos(*[res_match[1], start])

gem.target_y += GRIDSIZE * 3

gem.fixed = False

gem.direction = 'down'

self.all_gems[res_match[1]][start+3] = gem

else:

gem = Puzzle(img_path=random.choice(self.gem_imgs), size=(GRIDSIZE, GRIDSIZE), position=[XMARGIN+res_match[1]*GRIDSIZE, YMARGIN+start*GRIDSIZE], downlen=GRIDSIZE*3)

self.gems_group.add(gem)

self.all_gems[res_match[1]][start+3] = gem

start -= 1

之后反复执行这个过程,直至耗尽游戏时间,游戏结束。

最后,我们动态看一下游戏效果。

【Python】用Python写个开心消消乐小游戏

总结

本文我们使用 Python 实现了一个简单的消消乐游戏,有兴趣的可以对游戏做进一步扩展,比如增加关卡等。

源码在公众号 Python小二 后台回复 200727 获取。

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