用python+PYQT4写的一个俄罗斯方块游戏,pythonpyqt4,[Python]代码


[Python]代码

    #!/usr/bin/python      # tetris.py      import sys      import random      from PyQt4 import QtCore, QtGui      class Tetris(QtGui.QMainWindow):          def __init__(self):              QtGui.QMainWindow.__init__(self)              self.setGeometry(300, 300, 180, 380)              self.setWindowTitle('Tetris')              self.tetrisboard = Board(self)              self.setCentralWidget(self.tetrisboard)              self.statusbar = self.statusBar()              self.connect(self.tetrisboard, QtCore.SIGNAL("messageToStatusbar(QString)"),                  self.statusbar, QtCore.SLOT("showMessage(QString)"))              self.tetrisboard.start()              self.center()          def center(self):              screen = QtGui.QDesktopWidget().screenGeometry()              size =  self.geometry()              self.move((screen.width()-size.width())/2,                  (screen.height()-size.height())/2)      class Board(QtGui.QFrame):          BoardWidth = 10          BoardHeight = 22          Speed = 300          def __init__(self, parent):              QtGui.QFrame.__init__(self, parent)              self.timer = QtCore.QBasicTimer()              self.isWaitingAfterLine = False              self.curPiece = Shape()              self.nextPiece = Shape()              self.curX = 0              self.curY = 0              self.numLinesRemoved = 0              self.board = []              self.setFocusPolicy(QtCore.Qt.StrongFocus)              self.isStarted = False              self.isPaused = False              self.clearBoard()              self.nextPiece.setRandomShape()          def shapeAt(self, x, y):              return self.board[(y * Board.BoardWidth) + x]          def setShapeAt(self, x, y, shape):              self.board[(y * Board.BoardWidth) + x] = shape          def squareWidth(self):              return self.contentsRect().width() / Board.BoardWidth          def squareHeight(self):              return self.contentsRect().height() / Board.BoardHeight          def start(self):              if self.isPaused:                  return              self.isStarted = True              self.isWaitingAfterLine = False              self.numLinesRemoved = 0              self.clearBoard()              self.emit(QtCore.SIGNAL("messageToStatusbar(QString)"),                  str(self.numLinesRemoved))              self.newPiece()              self.timer.start(Board.Speed, self)          def pause(self):              if not self.isStarted:                  return              self.isPaused = not self.isPaused              if self.isPaused:                  self.timer.stop()                  self.emit(QtCore.SIGNAL("messageToStatusbar(QString)"), "paused")              else:                  self.timer.start(Board.Speed, self)                  self.emit(QtCore.SIGNAL("messageToStatusbar(QString)"),                      str(self.numLinesRemoved))              self.update()          def paintEvent(self, event):              painter = QtGui.QPainter(self)              rect = self.contentsRect()              boardTop = rect.bottom() - Board.BoardHeight * self.squareHeight()              for i in range(Board.BoardHeight):                  for j in range(Board.BoardWidth):                      shape = self.shapeAt(j, Board.BoardHeight - i - 1)                      if shape != Tetrominoes.NoShape:                          self.drawSquare(painter,                              rect.left() + j * self.squareWidth(),                              boardTop + i * self.squareHeight(), shape)              if self.curPiece.shape() != Tetrominoes.NoShape:                  for i in range(4):                      x = self.curX + self.curPiece.x(i)                      y = self.curY - self.curPiece.y(i)                      self.drawSquare(painter, rect.left() + x * self.squareWidth(),                          boardTop + (Board.BoardHeight - y - 1) * self.squareHeight(),                          self.curPiece.shape())          def keyPressEvent(self, event):              if not self.isStarted or self.curPiece.shape() == Tetrominoes.NoShape:                  QtGui.QWidget.keyPressEvent(self, event)                  return              key = event.key()              if key == QtCore.Qt.Key_P:                  self.pause()                  return              if self.isPaused:                  return              elif key == QtCore.Qt.Key_Left:                  self.tryMove(self.curPiece, self.curX - 1, self.curY)              elif key == QtCore.Qt.Key_Right:                  self.tryMove(self.curPiece, self.curX + 1, self.curY)              elif key == QtCore.Qt.Key_Down:                  self.tryMove(self.curPiece.rotatedRight(), self.curX, self.curY)              elif key == QtCore.Qt.Key_Up:                  self.tryMove(self.curPiece.rotatedLeft(), self.curX, self.curY)              elif key == QtCore.Qt.Key_Space:                  self.dropDown()              elif key == QtCore.Qt.Key_D:                  self.oneLineDown()              else:                  QtGui.QWidget.keyPressEvent(self, event)          def timerEvent(self, event):              if event.timerId() == self.timer.timerId():                  if self.isWaitingAfterLine:                      self.isWaitingAfterLine = False                      self.newPiece()                  else:                      self.oneLineDown()              else:                  QtGui.QFrame.timerEvent(self, event)          def clearBoard(self):              for i in range(Board.BoardHeight * Board.BoardWidth):                  self.board.append(Tetrominoes.NoShape)          def dropDown(self):              newY = self.curY              while newY > 0:                  if not self.tryMove(self.curPiece, self.curX, newY - 1):                      break                  newY -= 1              self.pieceDropped()          def oneLineDown(self):              if not self.tryMove(self.curPiece, self.curX, self.curY - 1):                  self.pieceDropped()          def pieceDropped(self):              for i in range(4):                  x = self.curX + self.curPiece.x(i)                  y = self.curY - self.curPiece.y(i)                  self.setShapeAt(x, y, self.curPiece.shape())              self.removeFullLines()              if not self.isWaitingAfterLine:                  self.newPiece()          def removeFullLines(self):              numFullLines = 0              rowsToRemove = []              for i in range(Board.BoardHeight):                  n = 0                  for j in range(Board.BoardWidth):                      if not self.shapeAt(j, i) == Tetrominoes.NoShape:                          n = n + 1                  if n == 10:                      rowsToRemove.append(i)              rowsToRemove.reverse()              for m in rowsToRemove:                  for k in range(m, Board.BoardHeight):                      for l in range(Board.BoardWidth):                          self.setShapeAt(l, k, self.shapeAt(l, k + 1))              numFullLines = numFullLines + len(rowsToRemove)              if numFullLines > 0:                  self.numLinesRemoved = self.numLinesRemoved + numFullLines                  self.emit(QtCore.SIGNAL("messageToStatusbar(QString)"),                      str(self.numLinesRemoved))                  self.isWaitingAfterLine = True                  self.curPiece.setShape(Tetrominoes.NoShape)                  self.update()          def newPiece(self):              self.curPiece = self.nextPiece              self.nextPiece.setRandomShape()              self.curX = Board.BoardWidth / 2 + 1              self.curY = Board.BoardHeight - 1 + self.curPiece.minY()              if not self.tryMove(self.curPiece, self.curX, self.curY):                  self.curPiece.setShape(Tetrominoes.NoShape)                  self.timer.stop()                  self.isStarted = False                  self.emit(QtCore.SIGNAL("messageToStatusbar(QString)"), "Game over")          def tryMove(self, newPiece, newX, newY):              for i in range(4):                  x = newX + newPiece.x(i)                  y = newY - newPiece.y(i)                  if x < 0 or x >= Board.BoardWidth or y < 0 or y >= Board.BoardHeight:                      return False                  if self.shapeAt(x, y) != Tetrominoes.NoShape:                      return False              self.curPiece = newPiece              self.curX = newX              self.curY = newY              self.update()              return True          def drawSquare(self, painter, x, y, shape):              colorTable = [0x000000, 0xCC6666, 0x66CC66, 0x6666CC,                            0xCCCC66, 0xCC66CC, 0x66CCCC, 0xDAAA00]              color = QtGui.QColor(colorTable[shape])              painter.fillRect(x + 1, y + 1, self.squareWidth() - 2,                  self.squareHeight() - 2, color)              painter.setPen(color.light())              painter.drawLine(x, y + self.squareHeight() - 1, x, y)              painter.drawLine(x, y, x + self.squareWidth() - 1, y)              painter.setPen(color.dark())              painter.drawLine(x + 1, y + self.squareHeight() - 1,                  x + self.squareWidth() - 1, y + self.squareHeight() - 1)              painter.drawLine(x + self.squareWidth() - 1,                  y + self.squareHeight() - 1, x + self.squareWidth() - 1, y + 1)      class Tetrominoes(object):          NoShape = 0          ZShape = 1          SShape = 2          LineShape = 3          TShape = 4          SquareShape = 5          LShape = 6          MirroredLShape = 7      class Shape(object):          coordsTable = (              ((0, 0),     (0, 0),     (0, 0),     (0, 0)),              ((0, -1),    (0, 0),     (-1, 0),    (-1, 1)),              ((0, -1),    (0, 0),     (1, 0),     (1, 1)),              ((0, -1),    (0, 0),     (0, 1),     (0, 2)),              ((-1, 0),    (0, 0),     (1, 0),     (0, 1)),              ((0, 0),     (1, 0),     (0, 1),     (1, 1)),              ((-1, -1),   (0, -1),    (0, 0),     (0, 1)),              ((1, -1),    (0, -1),    (0, 0),     (0, 1))          )          def __init__(self):              self.coords = [[0,0] for i in range(4)]              self.pieceShape = Tetrominoes.NoShape              self.setShape(Tetrominoes.NoShape)          def shape(self):              return self.pieceShape          def setShape(self, shape):              table = Shape.coordsTable[shape]              for i in range(4):                  for j in range(2):                      self.coords[i][j] = table[i][j]              self.pieceShape = shape          def setRandomShape(self):              self.setShape(random.randint(1, 7))          def x(self, index):              return self.coords[index][0]          def y(self, index):              return self.coords[index][1]          def setX(self, index, x):              self.coords[index][0] = x          def setY(self, index, y):              self.coords[index][1] = y          def minX(self):              m = self.coords[0][0]              for i in range(4):                  m = min(m, self.coords[i][0])              return m          def maxX(self):              m = self.coords[0][0]              for i in range(4):                  m = max(m, self.coords[i][0])              return m          def minY(self):              m = self.coords[0][1]              for i in range(4):                  m = min(m, self.coords[i][1])              return m          def maxY(self):              m = self.coords[0][1]              for i in range(4):                  m = max(m, self.coords[i][1])              return m          def rotatedLeft(self):              if self.pieceShape == Tetrominoes.SquareShape:                  return self              result = Shape()              result.pieceShape = self.pieceShape              for i in range(4):                  result.setX(i, self.y(i))                  result.setY(i, -self.x(i))              return result          def rotatedRight(self):              if self.pieceShape == Tetrominoes.SquareShape:                  return self              result = Shape()              result.pieceShape = self.pieceShape              for i in range(4):                  result.setX(i, -self.y(i))                  result.setY(i, self.x(i))              return result      app = QtGui.QApplication(sys.argv)      tetris = Tetris()      tetris.show()      sys.exit(app.exec_())  

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