Python 3 WxPython Tetris Game GUI Script Desktop App Full Project For Beginners

Python 3 WxPython Tetris Game GUI Script Desktop App Full Project For Beginners

 

Welcome folks today in this blog post we will be building a tetris game in python using wxpython library. All the full source code of the application is shown below.

 

 

Get Started

 

 

In order to get started you need to install the following library using the pip command as shown below

 

pip install wxpython

 

After installing this library make an app.py file and copy paste the following code

 

app.py

 

 

#!/usr/bin/env python

"""
ZetCode wxPython tutorial

This is Tetris game clone in wxPython.

author: Jan Bodnar
website: www.zetcode.com
last modified: July 2020
"""

import wx
import random

class Tetris(wx.Frame):

    def __init__(self, parent):
        wx.Frame.__init__(self, parent, size=(180, 380),
            style=wx.DEFAULT_FRAME_STYLE ^ wx.RESIZE_BORDER ^ wx.MAXIMIZE_BOX)

        self.initFrame()

    def initFrame(self):

        self.statusbar = self.CreateStatusBar()
        self.statusbar.SetStatusText('0')
        self.board = Board(self)
        self.board.SetFocus()
        self.board.start()

        self.SetTitle("Tetris")
        self.Centre()


class Board(wx.Panel):

    BoardWidth = 10
    BoardHeight = 22
    Speed = 300
    ID_TIMER = 1

    def __init__(self, *args, **kw):

        super(Board, self).__init__(*args, **kw)

        self.initBoard()

    def initBoard(self):

        self.timer = wx.Timer(self, Board.ID_TIMER)
        self.isWaitingAfterLine = False
        self.curPiece = Shape()
        self.nextPiece = Shape()
        self.curX = 0
        self.curY = 0
        self.numLinesRemoved = 0
        self.board = []

        self.isStarted = False
        self.isPaused = False

        self.Bind(wx.EVT_PAINT, self.OnPaint)
        self.Bind(wx.EVT_KEY_DOWN, self.OnKeyDown)
        self.Bind(wx.EVT_TIMER, self.OnTimer, id=Board.ID_TIMER)

        self.clearBoard()

    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.GetClientSize().GetWidth() // Board.BoardWidth

    def squareHeight(self):

        return self.GetClientSize().GetHeight() // Board.BoardHeight

    def start(self):

        if self.isPaused:
            return

        self.isStarted = True
        self.isWaitingAfterLine = False
        self.numLinesRemoved = 0
        self.clearBoard()

        self.newPiece()
        self.timer.Start(Board.Speed)

    def pause(self):

        if not self.isStarted:
            return

        self.isPaused = not self.isPaused
        statusbar = self.GetParent().statusbar

        if self.isPaused:
            self.timer.Stop()
            statusbar.SetStatusText('paused')
        else:
            self.timer.Start(Board.Speed)
            statusbar.SetStatusText(str(self.numLinesRemoved))

        self.Refresh()

    def clearBoard(self):

        for i in range(Board.BoardHeight * Board.BoardWidth):
            self.board.append(Tetrominoes.NoShape)

    def OnPaint(self, event):

        dc = wx.PaintDC(self)

        size = self.GetClientSize()
        boardTop = size.GetHeight() - 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(dc,
                        0 + 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(dc, 0 + x * self.squareWidth(),
                    boardTop + (Board.BoardHeight - y - 1) * self.squareHeight(),
                    self.curPiece.shape())


    def OnKeyDown(self, event):

        if not self.isStarted or self.curPiece.shape() == Tetrominoes.NoShape:
            event.Skip()
            return

        keycode = event.GetKeyCode()

        if keycode == ord('P') or keycode == ord('p'):
            self.pause()
            return

        if self.isPaused:
            return

        elif keycode == wx.WXK_LEFT:
            self.tryMove(self.curPiece, self.curX - 1, self.curY)

        elif keycode == wx.WXK_RIGHT:
            self.tryMove(self.curPiece, self.curX + 1, self.curY)

        elif keycode == wx.WXK_DOWN:
            self.tryMove(self.curPiece.rotatedRight(), self.curX, self.curY)

        elif keycode == wx.WXK_UP:
            self.tryMove(self.curPiece.rotatedLeft(), self.curX, self.curY)

        elif keycode == wx.WXK_SPACE:
            self.dropDown()

        elif keycode == ord('D') or keycode == ord('d'):
            self.oneLineDown()

        else:
            event.Skip()


    def OnTimer(self, event):

        if event.GetId() == Board.ID_TIMER:

            if self.isWaitingAfterLine:
                self.isWaitingAfterLine = False
                self.newPiece()

            else:
                self.oneLineDown()

        else:
            event.Skip()


    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

        statusbar = self.GetParent().statusbar

        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
                statusbar.SetStatusText(str(self.numLinesRemoved))
                self.isWaitingAfterLine = True
                self.curPiece.setShape(Tetrominoes.NoShape)
                self.Refresh()


    def newPiece(self):

        self.curPiece = self.nextPiece
        statusbar = self.GetParent().statusbar
        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
            statusbar.SetStatusText('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.Refresh()

        return True


    def drawSquare(self, dc, x, y, shape):

        colors = ['#000000', '#CC6666', '#66CC66', '#6666CC',
                  '#CCCC66', '#CC66CC', '#66CCCC', '#DAAA00']

        light = ['#000000', '#F89FAB', '#79FC79', '#7979FC',
                 '#FCFC79', '#FC79FC', '#79FCFC', '#FCC600']

        dark = ['#000000', '#803C3B', '#3B803B', '#3B3B80',
                 '#80803B', '#803B80', '#3B8080', '#806200']

        pen = wx.Pen(light[shape])
        pen.SetCap(wx.CAP_PROJECTING)
        dc.SetPen(pen)

        dc.DrawLine(x, y + self.squareHeight() - 1, x, y)
        dc.DrawLine(x, y, x + self.squareWidth() - 1, y)

        darkpen = wx.Pen(dark[shape])
        darkpen.SetCap(wx.CAP_PROJECTING)
        dc.SetPen(darkpen)

        dc.DrawLine(x + 1, y + self.squareHeight() - 1,
            x + self.squareWidth() - 1, y + self.squareHeight() - 1)
        dc.DrawLine(x + self.squareWidth() - 1,
        y + self.squareHeight() - 1, x + self.squareWidth() - 1, y + 1)

        dc.SetPen(wx.TRANSPARENT_PEN)
        dc.SetBrush(wx.Brush(colors[shape]))
        dc.DrawRectangle(x + 1, y + 1, self.squareWidth() - 2,
        self.squareHeight() - 2)


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


def main():

    app = wx.App()
    ex = Tetris(None)
    ex.Show()
    app.MainLoop()


if __name__ == '__main__':
    main()

 

See also  Python 3 PyGame 2D Ping Pong Table Tennis Multiplayer Game GUI Desktop App Full Project For Beginners

 

Now if you execute the python script by typing the below command as shown below

 

python app.py

 

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