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-
-#############################################################################
-##
-## Copyright (C) 2016 The Qt Company Ltd.
-## Contact: http://www.qt.io/licensing/
-##
-## This file is part of the Qt for Python examples of the Qt Toolkit.
-##
-## $QT_BEGIN_LICENSE:BSD$
-## You may use this file under the terms of the BSD license as follows:
-##
-## "Redistribution and use in source and binary forms, with or without
-## modification, are permitted provided that the following conditions are
-## met:
-## * Redistributions of source code must retain the above copyright
-## notice, this list of conditions and the following disclaimer.
-## * Redistributions in binary form must reproduce the above copyright
-## notice, this list of conditions and the following disclaimer in
-## the documentation and/or other materials provided with the
-## distribution.
-## * Neither the name of The Qt Company Ltd nor the names of its
-## contributors may be used to endorse or promote products derived
-## from this software without specific prior written permission.
-##
-##
-## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-## "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-## LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-## A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-## OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-## SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-## LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-## DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-## THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-## (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-## OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
-##
-## $QT_END_LICENSE$
-##
-#############################################################################
-
-# PySide2 tutorial 14
-
-
-import sys
-import math
-import random
-from PySide2 import QtCore, QtGui, QtWidgets
-
-
-class LCDRange(QtWidgets.QWidget):
- valueChanged = QtCore.Signal(int)
- def __init__(self, text=None, parent=None):
- if isinstance(text, QtWidgets.QWidget):
- parent = text
- text = None
-
- QtWidgets.QWidget.__init__(self, parent)
-
- self.init()
-
- if text:
- self.setText(text)
-
- def init(self):
- lcd = QtWidgets.QLCDNumber(2)
- self.slider = QtWidgets.QSlider(QtCore.Qt.Horizontal)
- self.slider.setRange(0, 99)
- self.slider.setValue(0)
- self.label = QtWidgets.QLabel()
- self.label.setAlignment(QtCore.Qt.AlignHCenter | QtCore.Qt.AlignTop)
- self.label.setSizePolicy(QtWidgets.QSizePolicy.Preferred, QtWidgets.QSizePolicy.Fixed)
-
- self.connect(self.slider, QtCore.SIGNAL("valueChanged(int)"),
- lcd, QtCore.SLOT("display(int)"))
- self.connect(self.slider, QtCore.SIGNAL("valueChanged(int)"),
- self, QtCore.SIGNAL("valueChanged(int)"))
-
- layout = QtWidgets.QVBoxLayout()
- layout.addWidget(lcd)
- layout.addWidget(self.slider)
- layout.addWidget(self.label)
- self.setLayout(layout)
-
- self.setFocusProxy(self.slider)
-
- def value(self):
- return self.slider.value()
-
- @QtCore.Slot(int)
- def setValue(self, value):
- self.slider.setValue(value)
-
- def text(self):
- return self.label.text()
-
- def setRange(self, minValue, maxValue):
- if minValue < 0 or maxValue > 99 or minValue > maxValue:
- QtCore.qWarning("LCDRange::setRange(%d, %d)\n"
- "\tRange must be 0..99\n"
- "\tand minValue must not be greater than maxValue" % (minValue, maxValue))
- return
-
- self.slider.setRange(minValue, maxValue)
-
- def setText(self, text):
- self.label.setText(text)
-
-
-class CannonField(QtWidgets.QWidget):
- angleChanged = QtCore.Signal(int)
- forceChanged = QtCore.Signal(int)
- hit = QtCore.Signal()
- missed = QtCore.Signal()
- canShoot = QtCore.Signal(bool)
- def __init__(self, parent=None):
- QtWidgets.QWidget.__init__(self, parent)
-
- self.currentAngle = 45
- self.currentForce = 0
- self.timerCount = 0
- self.autoShootTimer = QtCore.QTimer(self)
- self.connect(self.autoShootTimer, QtCore.SIGNAL("timeout()"),
- self.moveShot)
- self.shootAngle = 0
- self.shootForce = 0
- self.target = QtCore.QPoint(0, 0)
- self.gameEnded = False
- self.barrelPressed = False
- self.setPalette(QtGui.QPalette(QtGui.QColor(250, 250, 200)))
- self.setAutoFillBackground(True)
- self.newTarget()
-
- def angle(self):
- return self.currentAngle
-
- @QtCore.Slot(int)
- def setAngle(self, angle):
- if angle < 5:
- angle = 5
- if angle > 70:
- angle = 70
- if self.currentAngle == angle:
- return
- self.currentAngle = angle
- self.update()
- self.emit(QtCore.SIGNAL("angleChanged(int)"), self.currentAngle)
-
- def force(self):
- return self.currentForce
-
- @QtCore.Slot(int)
- def setForce(self, force):
- if force < 0:
- force = 0
- if self.currentForce == force:
- return
- self.currentForce = force
- self.emit(QtCore.SIGNAL("forceChanged(int)"), self.currentForce)
-
- @QtCore.Slot()
- def shoot(self):
- if self.isShooting():
- return
- self.timerCount = 0
- self.shootAngle = self.currentAngle
- self.shootForce = self.currentForce
- self.autoShootTimer.start(5)
- self.emit(QtCore.SIGNAL("canShoot(bool)"), False)
-
- firstTime = True
-
- def newTarget(self):
- if CannonField.firstTime:
- CannonField.firstTime = False
- midnight = QtCore.QTime(0, 0, 0)
- random.seed(midnight.secsTo(QtCore.QTime.currentTime()))
-
- self.target = QtCore.QPoint(200 + random.randint(0, 190 - 1), 10 + random.randint(0, 255 - 1))
- self.update()
-
- def setGameOver(self):
- if self.gameEnded:
- return
- if self.isShooting():
- self.autoShootTimer.stop()
- self.gameEnded = True
- self.update()
-
- def restartGame(self):
- if self.isShooting():
- self.autoShootTimer.stop()
- self.gameEnded = False
- self.update()
- self.emit(QtCore.SIGNAL("canShoot(bool)"), True)
-
- @QtCore.Slot()
- def moveShot(self):
- region = QtGui.QRegion(self.shotRect())
- self.timerCount += 1
-
- shotR = self.shotRect()
-
- if shotR.intersects(self.targetRect()):
- self.autoShootTimer.stop()
- self.emit(QtCore.SIGNAL("hit()"))
- self.emit(QtCore.SIGNAL("canShoot(bool)"), True)
- elif shotR.x() > self.width() or shotR.y() > self.height() or shotR.intersects(self.barrierRect()):
- self.autoShootTimer.stop()
- self.emit(QtCore.SIGNAL("missed()"))
- self.emit(QtCore.SIGNAL("canShoot(bool)"), True)
- else:
- region = region.united(QtGui.QRegion(shotR))
-
- self.update(region)
-
- def mousePressEvent(self, event):
- if event.button() != QtCore.Qt.LeftButton:
- return
- if self.barrelHit(event.pos()):
- self.barrelPressed = True
-
- def mouseMoveEvent(self, event):
- if not self.barrelPressed:
- return
- pos = event.pos()
- if pos.x() <= 0:
- pos.setX(1)
- if pos.y() >= self.height():
- pos.setY(self.height() - 1)
- rad = math.atan((float(self.rect().bottom()) - pos.y()) / pos.x())
- self.setAngle(round(rad * 180 / 3.14159265))
-
- def mouseReleaseEvent(self, event):
- if event.button() == QtCore.Qt.LeftButton:
- self.barrelPressed = False
-
- def paintEvent(self, event):
- painter = QtGui.QPainter(self)
-
- if self.gameEnded:
- painter.setPen(QtCore.Qt.black)
- painter.setFont(QtGui.QFont("Courier", 48, QtGui.QFont.Bold))
- painter.drawText(self.rect(), QtCore.Qt.AlignCenter, "Game Over")
-
- self.paintCannon(painter)
- self.paintBarrier(painter)
- if self.isShooting():
- self.paintShot(painter)
- if not self.gameEnded:
- self.paintTarget(painter)
-
- def paintShot(self, painter):
- painter.setPen(QtCore.Qt.NoPen)
- painter.setBrush(QtCore.Qt.black)
- painter.drawRect(self.shotRect())
-
- def paintTarget(self, painter):
- painter.setPen(QtCore.Qt.black)
- painter.setBrush(QtCore.Qt.red)
- painter.drawRect(self.targetRect())
-
- def paintBarrier(self, painter):
- painter.setPen(QtCore.Qt.black)
- painter.setBrush(QtCore.Qt.yellow)
- painter.drawRect(self.barrierRect())
-
- barrelRect = QtCore.QRect(33, -4, 15, 8)
-
- def paintCannon(self, painter):
- painter.setPen(QtCore.Qt.NoPen)
- painter.setBrush(QtCore.Qt.blue)
-
- painter.save()
- painter.translate(0, self.height())
- painter.drawPie(QtCore.QRect(-35, -35, 70, 70), 0, 90 * 16)
- painter.rotate(-self.currentAngle)
- painter.drawRect(CannonField.barrelRect)
- painter.restore()
-
- def cannonRect(self):
- result = QtCore.QRect(0, 0, 50, 50)
- result.moveBottomLeft(self.rect().bottomLect())
- return result
-
- def shotRect(self):
- gravity = 4.0
-
- time = self.timerCount / 40.0
- velocity = self.shootForce
- radians = self.shootAngle * 3.14159265 / 180
-
- velx = velocity * math.cos(radians)
- vely = velocity * math.sin(radians)
- x0 = (CannonField.barrelRect.right() + 5) * math.cos(radians)
- y0 = (CannonField.barrelRect.right() + 5) * math.sin(radians)
- x = x0 + velx * time
- y = y0 + vely * time - 0.5 * gravity * time * time
-
- result = QtCore.QRect(0, 0, 6, 6)
- result.moveCenter(QtCore.QPoint(round(x), self.height() - 1 - round(y)))
- return result
-
- def targetRect(self):
- result = QtCore.QRect(0, 0, 20, 10)
- result.moveCenter(QtCore.QPoint(self.target.x(), self.height() - 1 - self.target.y()))
- return result
-
- def barrierRect(self):
- return QtCore.QRect(145, self.height() - 100, 15, 99)
-
- def barrelHit(self, pos):
- matrix = QtGui.QMatrix()
- matrix.translate(0, self.height())
- matrix.rotate(-self.currentAngle)
- matrix, invertible = matrix.inverted()
- return self.barrelRect.contains(matrix.map(pos))
-
- def gameOver(self):
- return self.gameEnded
-
- def isShooting(self):
- return self.autoShootTimer.isActive()
-
- def sizeHint(self):
- return QtCore.QSize(400, 300)
-
-
-class GameBoard(QtWidgets.QWidget):
- def __init__(self, parent=None):
- QtWidgets.QWidget.__init__(self, parent)
-
- quit = QtWidgets.QPushButton("&Quit")
- quit.setFont(QtGui.QFont("Times", 18, QtGui.QFont.Bold))
-
- self.connect(quit, QtCore.SIGNAL("clicked()"),
- qApp, QtCore.SLOT("quit()"))
-
- angle = LCDRange("ANGLE")
- angle.setRange(5, 70)
-
- force = LCDRange("FORCE")
- force.setRange(10, 50)
-
- cannonBox = QtWidgets.QFrame()
- cannonBox.setFrameStyle(QtWidgets.QFrame.WinPanel | QtWidgets.QFrame.Sunken)
-
- self.cannonField = CannonField()
-
- self.connect(angle, QtCore.SIGNAL("valueChanged(int)"),
- self.cannonField.setAngle)
- self.connect(self.cannonField, QtCore.SIGNAL("angleChanged(int)"),
- angle.setValue)
-
- self.connect(force, QtCore.SIGNAL("valueChanged(int)"),
- self.cannonField.setForce)
- self.connect(self.cannonField, QtCore.SIGNAL("forceChanged(int)"),
- force.setValue)
-
- self.connect(self.cannonField, QtCore.SIGNAL("hit()"), self.hit)
- self.connect(self.cannonField, QtCore.SIGNAL("missed()"), self.missed)
-
- shoot = QtWidgets.QPushButton("&Shoot")
- shoot.setFont(QtGui.QFont("Times", 18, QtGui.QFont.Bold))
-
- self.connect(shoot, QtCore.SIGNAL("clicked()"), self.fire)
- self.connect(self.cannonField, QtCore.SIGNAL("canShoot(bool)"),
- shoot, QtCore.SLOT("setEnabled(bool)"))
-
- restart = QtWidgets.QPushButton("&New Game")
- restart.setFont(QtGui.QFont("Times", 18, QtGui.QFont.Bold))
-
- self.connect(restart, QtCore.SIGNAL("clicked()"), self.newGame)
-
- self.hits = QtWidgets.QLCDNumber(2)
- self.shotsLeft = QtWidgets.QLCDNumber(2)
- hitsLabel = QtWidgets.QLabel("HITS")
- shotsLeftLabel = QtWidgets.QLabel("SHOTS LEFT")
-
- QtWidgets.QShortcut(QtGui.QKeySequence(QtCore.Qt.Key_Enter),
- self, self.fire)
- QtWidgets.QShortcut(QtGui.QKeySequence(QtCore.Qt.Key_Return),
- self, self.fire)
- QtWidgets.QShortcut(QtGui.QKeySequence(QtCore.Qt.CTRL + QtCore.Qt.Key_Q),
- self, QtCore.SLOT("close()"))
-
- topLayout = QtWidgets.QHBoxLayout()
- topLayout.addWidget(shoot)
- topLayout.addWidget(self.hits)
- topLayout.addWidget(hitsLabel)
- topLayout.addWidget(self.shotsLeft)
- topLayout.addWidget(shotsLeftLabel)
- topLayout.addStretch(1)
- topLayout.addWidget(restart)
-
- leftLayout = QtWidgets.QVBoxLayout()
- leftLayout.addWidget(angle)
- leftLayout.addWidget(force)
-
- cannonLayout = QtWidgets.QVBoxLayout()
- cannonLayout.addWidget(self.cannonField)
- cannonBox.setLayout(cannonLayout)
-
- gridLayout = QtWidgets.QGridLayout()
- gridLayout.addWidget(quit, 0, 0)
- gridLayout.addLayout(topLayout, 0, 1)
- gridLayout.addLayout(leftLayout, 1, 0)
- gridLayout.addWidget(cannonBox, 1, 1, 2, 1)
- gridLayout.setColumnStretch(1, 10)
- self.setLayout(gridLayout)
-
- angle.setValue(60)
- force.setValue(25)
- angle.setFocus()
-
- self.newGame()
-
- @QtCore.Slot()
- def fire(self):
- if self.cannonField.gameOver() or self.cannonField.isShooting():
- return
- self.shotsLeft.display(self.shotsLeft.intValue() - 1)
- self.cannonField.shoot()
-
- @QtCore.Slot()
- def hit(self):
- self.hits.display(self.hits.intValue() + 1)
- if self.shotsLeft.intValue() == 0:
- self.cannonField.setGameOver()
- else:
- self.cannonField.newTarget()
-
- @QtCore.Slot()
- def missed(self):
- if self.shotsLeft.intValue() == 0:
- self.cannonField.setGameOver()
-
- @QtCore.Slot()
- def newGame(self):
- self.shotsLeft.display(15)
- self.hits.display(0)
- self.cannonField.restartGame()
- self.cannonField.newTarget()
-
-
-app = QtWidgets.QApplication(sys.argv)
-board = GameBoard()
-board.setGeometry(100, 100, 500, 355)
-board.show()
-sys.exit(app.exec_())
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