Python小游戏源码

四、俄罗斯方块

 
import os
import sys
import random
from modules import *
from PyQt5.QtGui import *
from PyQt5.QtCore import *
from PyQt5.QtWidgets import *


'''定义俄罗斯方块游戏类'''
class TetrisGame(QMainWindow):
def __init__(self, parent=None):
super(TetrisGame, self).__init__(parent)
# 是否暂停ing
self.is_paused = False
# 是否开始ing
self.is_started = False
self.initUI()
'''界面初始化'''
def initUI(self):
# icon
self.setWindowIcon(QIcon(os.path.join(os.getcwd(), 'resources/icon.jpg')))
# 块大小
self.grid_size = 22
# 游戏帧率
self.fps = 200
self.timer = QBasicTimer()
# 焦点
self.setFocusPolicy(Qt.StrongFocus)
# 水平布局
layout_horizontal = QHBoxLayout()
self.inner_board = InnerBoard()
self.external_board = ExternalBoard(self, self.grid_size, self.inner_board)
layout_horizontal.addWidget(self.external_board)
self.side_panel = SidePanel(self, self.grid_size, self.inner_board)
layout_horizontal.addWidget(self.side_panel)
self.status_bar = self.statusBar()
self.external_board.score_signal[str].connect(self.status_bar.showMessage)
self.start()
self.center()
self.setWindowTitle('Tetris —— 九歌')
self.show()
self.setFixedSize(self.external_board.width() + self.side_panel.width(), self.side_panel.height() + self.status_bar.height())
'''游戏界面移动到屏幕中间'''
def center(self):
screen = QDesktopWidget().screenGeometry()
size = self.geometry()
self.move((screen.width() - size.width()) // 2, (screen.height() - size.height()) // 2)
'''更新界面'''
def updateWindow(self):
self.external_board.updateData()
self.side_panel.updateData()
self.update()
'''开始'''
def start(self):
if self.is_started:
return
self.is_started = True
self.inner_board.createNewTetris()
self.timer.start(self.fps, self)
'''暂停/不暂停'''
def pause(self):
if not self.is_started:
return
self.is_paused = not self.is_paused
if self.is_paused:
self.timer.stop()
self.external_board.score_signal.emit('Paused')
else:
self.timer.start(self.fps, self)
self.updateWindow()
'''计时器事件'''
def timerEvent(self, event):
if event.timerId() == self.timer.timerId():
removed_lines = self.inner_board.moveDown()
self.external_board.score += removed_lines
self.updateWindow()
else:
super(TetrisGame, self).timerEvent(event)
'''按键事件'''
def keyPressEvent(self, event):
if not self.is_started or self.inner_board.current_tetris == tetrisShape().shape_empty:
super(TetrisGame, self).keyPressEvent(event)
return
key = event.key()
# P键暂停
if key == Qt.Key_P:
self.pause()
return
if self.is_paused:
return
# 向左
elif key == Qt.Key_Left:
self.inner_board.moveLeft()
# 向右
elif key == Qt.Key_Right:
self.inner_board.moveRight()
# 旋转
elif key == Qt.Key_Up:
self.inner_board.rotateAnticlockwise()
# 快速坠落
elif key == Qt.Key_Space:
self.external_board.score += self.inner_board.dropDown()
else:
super(TetrisGame, self).keyPressEvent(event)
self.updateWindow()


'''run'''
if __name__ == '__main__':
app = QApplication([])
tetris = TetrisGame()
sys.exit(app.exec_())