# UI use PyQt5 https://www.wenjiangs.com/doc/9twg2oyx
# Logic:QtCore.QBasicTimer() create a game cycle
# Model is down
# Model movement as a whole, not by piexl
# Model is a series of number: Tetrominoe class
# Game setting:
# Start Game, use "P" to pause, space to drop down shapes
# game speed is fixed
# score is the number of elminated lines
#! /usr/bin/python3
# -*- coding: utf-8 -*-
from PyQt5.QtWidgets import QMainWindow, QFrame, QDesktopWidget, QAapplication
from PyQt5.QtCore import Qt, QBasicTimer, pyqtSingnal
from PyQt5.QtGui import QPainter,QColor
import sys, random
class Tetris(QMainWindow)
def __init__(self):
super().__init__()
self.initUI()
def initUI(self):
# initiates application UI
self.tboard = Board(self)
self.setCentralWidget(self.tboard)
self.statusbar = self.statusBar()
self.tboard.msg2Statusbar[str].connect(self.statusbar.showMessage)
self.tboard.start()
self.resize(180,380)
self.center() # refere to center
self.setWindowTitle(Tetris)
self.show()
def center(self):
screen = QDesktopWidget().screenGeometry()
size = self.geometry()
self.move((screen.width()-size.width())/2,(screen.height()-size.height())/2)
class Board(QFrame):
msg2Statusbar = pyqtSingnal(str)
BoardWidth = 10
BoardHeight = 22
Speed = 300
def __init__(self,parent):
super().__init__(parent)
self.initBoard()
def initBoard(self):
self.timer = QBasicTimer()
self.isWaitingAfterline = False
self.curX = 0
self.curY = 0
self.numLinesRemoved = 0
self.isStarted = False
self.isPaused = False
self.clearBoard()
def shapeAt(self,x,y):
return self.board[(y*Board.BoardWidth)+x]
def setShapeAt(self,x,y,shape):
return self.board[(y*Board.BoardWidth)+x] = shape
def squareWidth(self):
return self.contentsRect().width()
def squareHeight(self):
return self.contentsRect().Height()
def start(self):
if self.isPaused:
return
self.isStarted = True
self.isWaitingAfterline = False
self.numLinesRemoved = 0
self.clearBoard()
self.msg2Statusbar.emit(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.msg2Statusbar.emit("paused")
else:
self.timer.start(Board.Speed, self)
self.msg2Statusbar.emit(str(self.numLinesRemoved))
self.update()
def painEvent(self,event):
painter = 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 != Tetrominoe.NoShape:
self.drawSquare(painter,rect.left()+j*self.squareWidth(),boardTop+i*self.squareHeight(),shape)
if self.curPiece.shape() != Tetrominoe.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() == Tetrominoe.NoShape:
super(Board,self).keyPressEvent(event)
return
key = event.key()
if key == Qt.Key_P:
self.pause()
return
if self.isPaused:
return
elif key == Qt.Key_Left:
self.tryMove(self.curPiece, self.curX - 1, self.curY)
elif key == Qt.Key_Right:
self.tryMove(self.curPiece, self.curX + 1, self.curY)
elif key == Qt.Key_Down:
self.tryMove(self.curPiece.rorotateRight(), self.curX , self.curY)
elif key == Qt.Key_up:
self.tryMove(self.curPiece.rorotateLeft(), self.curX , self.curY)
elif key == Qt.Key_space:
self.dropDown()
elif key == Qt.Key_D:
self.oneLineDown()
else:
super(Board,self).keyPressEvent(event)
def timeEvent(self,event):
if event.timerId() == self.timer.timerId():
if self.isWaitingAfterline:
self.isWaitingAfterline = False
self.newPiece()
else:
super(Board,self).timeEvent(event)
def clearBoard(self):
for i in range(Board.BoardHeight*Board.BoardWidth)
self.board.append(Tetrominoe.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) == Tetrominoe.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.msg2Statusbar.emit(self.numLinesRemoved)
self.isWaitingAfterline = True
self.curPiece.setShape(Tetrominoe.NoShape)
self.update()
def newPiece(self):
self.curPiece = Shape()
self.curPiece.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(Tetrominoe)
self.timer.stop()
self.isStarted = False
self.msg2Statusbar.emit("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) != Tetrominoe.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 = QColor(colorTable[shape])
painter.fillRect(x + 1, y + 1, self.squareWidth() - 2, self.squareHeight() - 2, color)
painter.setPen(color.lighter())
painter.drawLine(x, y + self.squareHeight() - 1, x, y)
painter.drawLine(x, y, x + self.squareWidth() - 1, y)
painter.setPen(color.darker())
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 Tetrominoe(object):
NoShape = 0
ZShape = 1
SShape = 2
LineShape = 3
TShape = 4
SquareShape = 5
LShape = 6
MirrorLShape = 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), (-1,0), (0,1)),
)
def __init__(self):
self.coords = [[0,0] for i in range(4)]
self.pieceShape = Tetrominoe.NoShape
self.setShape(Tetrominoe.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 rotateLeft(self):
if self.pieceShape == Tetrominoe.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 roteteRight(self):
if self.pieceShape == Tetrominoe.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
if __name__ == __main__:
app = QAapplication([])
tetris = Tetris()
sys.exit(app.exec_())