上篇更新到pygame实现俄罗斯方块游戏（AI篇2） ，原本应该继续做优化，不过考虑到完成游戏完整性，这张就先把对战做好。

一、对战的方块管理

定义一个BlockManage管理对战的方块

class BlockManage(object):
 pnum=1
 blocks = []
 def __init__(self,pnum):
 self.pnum=pnum
 self.blocks=[[] for i in range(self.pnum)]

 def get_block(self, pid=0):
 if len(self.blocks[pid]) == 0:
 block = create_block()
 for arr in self.blocks:
 arr.append(pickle.loads(pickle.dumps(block)))
 return self.blocks[pid].pop(0)

根据BlockManage根据传入的玩家id返回方块，保证每个玩家拿到的方块序列十一致的，所以在每次创建方块时存放了玩家数量相同的拷贝，拷贝是避免对象的引用造成对同一个方块对象操作混乱。

然后HintBox里加入block_manage的引用并且在take_block函数里将创建Block改为使用block_manage去取方块

class HintBox(object):
 block_manage=None
 next_block=None
 def __init__(self, bg, block_size, position, block_manage):
 self._bg=bg;
 self._x,self._y,self._width,self._height=position
 self._block_size=block_size
 self._bgcolor=[0,0,0]
 self.block_manage=block_manage

 def take_block(self):
 block = self.next_block
 if block is None: # make first block
 block = self.block_manage.get_block()
 
 self.next_block = self.block_manage.get_block()
 return block

分别定义一个VirtualHintBox和一个VirtualScoreBox，用于给右下角面板上的

class VirtualHintBox(object):
 pid = 0
 block_manage=None
 next_block=None
 def __init__(self, pid, block_manage):
 print pid
 self.pid=pid
 self.block_manage=block_manage

 def take_block(self):
 block = self.next_block
 if block is None: # make first block
 block = block_manage.get_block(self.pid)
 
 self.next_block = block_manage.get_block(self.pid)
 return block

class VirtualScoreBox(object):
 total_score = 0
 def __init__(self):
 pass

 def add_score(self, score):
 self.total_score += score

使用block_manage并分别传递给主面板的hint_box和右下角面板的VirtualHintBox,右下角面板的定义和初使设置完了以后，将下面的player改为player1和player2两个玩家。

在游戏主循环增加完相应的设置和操作，现在就可以玩人机对战了。

当然如果你把

player1 = HumanPlayer()
player2 = AIPlayer(ai_diff_ticks=350)

改成

player1 = AIPlayer(ai_diff_ticks=150)
player2 = AIPlayer(ai_diff_ticks=350)

当然就是一场机器人对机器人的战斗

二、记分和增加对抗性

增加记分显示比较容易，给VirtualScoreBox实现下paint就行。

class VirtualScoreBox(object):
 total_score = 0
 def __init__(self, bg, position):
 self._bg=bg;
 self._x,self._y,self._width,self._height=position
 self._bgcolor=[0,0,0]

 def paint(self):
 myfont = pygame.font.Font(None,22)
 white = 255,255,255
 textImage = myfont.render('Player2 Score:%06d'%(self.total_score), True, white)
 self._bg.blit(textImage, (self._x,self._y))

 def add_score(self, score):
 self.total_score += score