diff options
Diffstat (limited to 'examples/widgets/tutorials/cannon/t14.py')
| -rw-r--r-- | examples/widgets/tutorials/cannon/t14.py | 574 |
1 files changed, 267 insertions, 307 deletions
diff --git a/examples/widgets/tutorials/cannon/t14.py b/examples/widgets/tutorials/cannon/t14.py index d558d2e61..3c94408f3 100644 --- a/examples/widgets/tutorials/cannon/t14.py +++ b/examples/widgets/tutorials/cannon/t14.py @@ -1,43 +1,5 @@ - -############################################################################# -## -## 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." -## -## $QT_END_LICENSE$ -## -############################################################################# +# Copyright (C) 2022 The Qt Company Ltd. +# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause # PySide6 tutorial 14 @@ -45,406 +7,404 @@ import sys import math import random -from PySide6 import QtCore, QtGui, QtWidgets +from PySide6.QtCore import (QPoint, QRect, QTime, QTimer, QSize, Qt, + Signal, Slot, qWarning) +from PySide6.QtGui import (QColor, QFont, QKeySequence, QPainter, QPalette, + QShortcut, QRegion, QTransform) +from PySide6.QtWidgets import (QApplication, QFrame, QGridLayout, QHBoxLayout, + QLabel, QLCDNumber, QPushButton, QSizePolicy, + QSlider, QVBoxLayout, QWidget) + + +class LCDRange(QWidget): + + value_changed = Signal(int) -class LCDRange(QtWidgets.QWidget): - valueChanged = QtCore.Signal(int) def __init__(self, text=None, parent=None): - if isinstance(text, QtWidgets.QWidget): + if isinstance(text, QWidget): parent = text text = None - QtWidgets.QWidget.__init__(self, parent) + super().__init__(parent) self.init() if text: - self.setText(text) + self.set_text(text) def init(self): - lcd = QtWidgets.QLCDNumber(2) - self.slider = QtWidgets.QSlider(QtCore.Qt.Horizontal) + lcd = QLCDNumber(2) + self.slider = QSlider(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.label = QLabel() + self.label.setAlignment(Qt.AlignHCenter | Qt.AlignTop) + self.label.setSizePolicy(QSizePolicy.Preferred, 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)")) + self.slider.valueChanged.connect(lcd.display) + self.slider.valueChanged.connect(self.value_changed) - layout = QtWidgets.QVBoxLayout() + layout = QVBoxLayout(self) 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): + @Slot(int) + def set_value(self, value): self.slider.setValue(value) def text(self): return self.label.text() - def setRange(self, minValue, maxValue): + def set_range(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)) + qWarning(f"LCDRange::setRange({minValue}, {maxValue})\n" + "\tRange must be 0..99\n" + "\tand minValue must not be greater than maxValue") return self.slider.setRange(minValue, maxValue) - def setText(self, text): + def set_text(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) +class CannonField(QWidget): + + angle_changed = Signal(int) + force_changed = Signal(int) + hit = Signal() + missed = Signal() + can_shoot = 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))) + super().__init__(parent) + + self._current_angle = 45 + self._current_force = 0 + self._timer_count = 0 + self._auto_shoot_timer = QTimer(self) + self._auto_shoot_timer.timeout.connect(self.move_shot) + self._shoot_angle = 0 + self._shoot_force = 0 + self.target = QPoint(0, 0) + self._game_ended = False + self._barrel_pressed = False + self.setPalette(QPalette(QColor(250, 250, 200))) self.setAutoFillBackground(True) - self.newTarget() + self.new_target() def angle(self): - return self.currentAngle + return self._current_angle - @QtCore.Slot(int) - def setAngle(self, angle): + @Slot(int) + def set_angle(self, angle): if angle < 5: angle = 5 if angle > 70: angle = 70 - if self.currentAngle == angle: + if self._current_angle == angle: return - self.currentAngle = angle + self._current_angle = angle self.update() - self.emit(QtCore.SIGNAL("angleChanged(int)"), self.currentAngle) + self.angle_changed.emit(self._current_angle) def force(self): - return self.currentForce + return self._current_force - @QtCore.Slot(int) - def setForce(self, force): + @Slot(int) + def set_force(self, force): if force < 0: force = 0 - if self.currentForce == force: + if self._current_force == force: return - self.currentForce = force - self.emit(QtCore.SIGNAL("forceChanged(int)"), self.currentForce) + self._current_force = force + self.force_changed.emit(self._current_force) - @QtCore.Slot() + @Slot() def shoot(self): - if self.isShooting(): + if self.is_shooting(): return - self.timerCount = 0 - self.shootAngle = self.currentAngle - self.shootForce = self.currentForce - self.autoShootTimer.start(5) - self.emit(QtCore.SIGNAL("canShoot(bool)"), False) + self._timer_count = 0 + self._shoot_angle = self._current_angle + self._shoot_force = self._current_force + self._auto_shoot_timer.start(5) + self.can_shoot.emit(False) - firstTime = True + first_time = True - def newTarget(self): - if CannonField.firstTime: - CannonField.firstTime = False - midnight = QtCore.QTime(0, 0, 0) - random.seed(midnight.secsTo(QtCore.QTime.currentTime())) + def new_target(self): + if CannonField.first_time: + CannonField.first_time = False + midnight = QTime(0, 0, 0) + random.seed(midnight.secsTo(QTime.currentTime())) - self.target = QtCore.QPoint(200 + random.randint(0, 190 - 1), 10 + random.randint(0, 255 - 1)) + self.target = QPoint(200 + random.randint(0, 190 - 1), 10 + random.randint(0, 255 - 1)) self.update() - def setGameOver(self): - if self.gameEnded: + def set_game_over(self): + if self._game_ended: return - if self.isShooting(): - self.autoShootTimer.stop() - self.gameEnded = True + if self.is_shooting(): + self._auto_shoot_timer.stop() + self._game_ended = True self.update() - def restartGame(self): - if self.isShooting(): - self.autoShootTimer.stop() - self.gameEnded = False + def restart_game(self): + if self.is_shooting(): + self._auto_shoot_timer.stop() + self._game_ended = 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) + self.can_shoot.emit(True) + + @Slot() + def move_shot(self): + region = QRegion(self.shot_rect()) + self._timer_count += 1 + + shot_r = self.shot_rect() + + if shot_r.intersects(self.target_rect()): + self._auto_shoot_timer.stop() + self.hit.emit() + self.can_shoot.emit(True) + elif (shot_r.x() > self.width() or shot_r.y() > self.height() + or shot_r.intersects(self.barrier_rect())): + self._auto_shoot_timer.stop() + self.missed.emit() + self.can_shoot.emit(True) else: - region = region.united(QtGui.QRegion(shotR)) + region = region.united(QRegion(shot_r)) self.update(region) def mousePressEvent(self, event): - if event.button() != QtCore.Qt.LeftButton: + if event.button() != Qt.LeftButton: return - if self.barrelHit(event.pos()): - self.barrelPressed = True + if self.barrel_hit(event.position().toPoint()): + self._barrel_pressed = True def mouseMoveEvent(self, event): - if not self.barrelPressed: + if not self._barrel_pressed: return - pos = event.pos() + pos = event.position().toPoint() 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)) + self.set_angle(round(rad * 180 / math.pi)) def mouseReleaseEvent(self, event): - if event.button() == QtCore.Qt.LeftButton: - self.barrelPressed = False + if event.button() == Qt.LeftButton: + self._barrel_pressed = 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) + with QPainter(self) as painter: + if self._game_ended: + painter.setPen(Qt.black) + painter.setFont(QFont("Courier", 48, QFont.Bold)) + painter.drawText(self.rect(), Qt.AlignCenter, "Game Over") + + self.paint_cannon(painter) + self.paint_barrier(painter) + if self.is_shooting(): + self.paint_shot(painter) + if not self._game_ended: + self.paint_target(painter) + + def paint_shot(self, painter): + painter.setPen(Qt.NoPen) + painter.setBrush(Qt.black) + painter.drawRect(self.shot_rect()) + + def paint_target(self, painter): + painter.setPen(Qt.black) + painter.setBrush(Qt.red) + painter.drawRect(self.target_rect()) + + def paint_barrier(self, painter): + painter.setPen(Qt.black) + painter.setBrush(Qt.yellow) + painter.drawRect(self.barrier_rect()) + + barrel_rect = QRect(33, -4, 15, 8) + + def paint_cannon(self, painter): + painter.setPen(Qt.NoPen) + painter.setBrush(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.drawPie(QRect(-35, -35, 70, 70), 0, 90 * 16) + painter.rotate(-self._current_angle) + painter.drawRect(CannonField.barrel_rect) painter.restore() - def cannonRect(self): - result = QtCore.QRect(0, 0, 50, 50) + def cannon_rect(self): + result = QRect(0, 0, 50, 50) result.moveBottomLeft(self.rect().bottomLect()) return result - def shotRect(self): + def shot_rect(self): gravity = 4.0 - time = self.timerCount / 40.0 - velocity = self.shootForce - radians = self.shootAngle * 3.14159265 / 180 + time = self._timer_count / 40.0 + velocity = self._shoot_force + radians = self._shoot_angle * math.pi / 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) + x0 = (CannonField.barrel_rect.right() + 5) * math.cos(radians) + y0 = (CannonField.barrel_rect.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))) + result = QRect(0, 0, 6, 6) + result.moveCenter(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())) + def target_rect(self): + result = QRect(0, 0, 20, 10) + result.moveCenter(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 barrier_rect(self): + return QRect(145, self.height() - 100, 15, 99) - def barrelHit(self, pos): - matrix = QtGui.QTransform() + def barrel_hit(self, pos): + matrix = QTransform() matrix.translate(0, self.height()) - matrix.rotate(-self.currentAngle) + matrix.rotate(-self._current_angle) matrix, invertible = matrix.inverted() - return self.barrelRect.contains(matrix.map(pos)) + return self.barrel_rect.contains(matrix.map(pos)) - def gameOver(self): - return self.gameEnded + def game_over(self): + return self._game_ended - def isShooting(self): - return self.autoShootTimer.isActive() + def is_shooting(self): + return self._auto_shoot_timer.isActive() def sizeHint(self): - return QtCore.QSize(400, 300) + return QSize(400, 300) -class GameBoard(QtWidgets.QWidget): +class GameBoard(QWidget): def __init__(self, parent=None): - QtWidgets.QWidget.__init__(self, parent) + super().__init__(parent) - quit = QtWidgets.QPushButton("&Quit") - quit.setFont(QtGui.QFont("Times", 18, QtGui.QFont.Bold)) + quit = QPushButton("&Quit") + quit.setFont(QFont("Times", 18, QFont.Bold)) - self.connect(quit, QtCore.SIGNAL("clicked()"), - qApp, QtCore.SLOT("quit()")) + quit.clicked.connect(qApp.quit) # noqa: F821 angle = LCDRange("ANGLE") - angle.setRange(5, 70) + angle.set_range(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") - - QtGui.QShortcut(QtGui.QKeySequence(QtCore.Qt.Key_Enter), - self, self.fire) - QtGui.QShortcut(QtGui.QKeySequence(QtCore.Qt.Key_Return), - self, self.fire) - QtGui.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) + force.set_range(10, 50) + + cannon_box = QFrame() + cannon_box.setFrameStyle(QFrame.WinPanel | QFrame.Sunken) + + self._cannon_field = CannonField() + + angle.value_changed.connect(self._cannon_field.set_angle) + self._cannon_field.angle_changed.connect(angle.set_value) + + force.value_changed.connect(self._cannon_field.set_force) + self._cannon_field.force_changed.connect(force.set_value) + + self._cannon_field.hit.connect(self.hit) + self._cannon_field.missed.connect(self.missed) + + shoot = QPushButton("&Shoot") + shoot.setFont(QFont("Times", 18, QFont.Bold)) + + shoot.clicked.connect(self.fire) + self._cannon_field.can_shoot.connect(shoot.setEnabled) + + restart = QPushButton("&New Game") + restart.setFont(QFont("Times", 18, QFont.Bold)) + + restart.clicked.connect(self.new_game) + + self.hits = QLCDNumber(2) + self._shots_left = QLCDNumber(2) + hits_label = QLabel("HITS") + shots_left_label = QLabel("SHOTS LEFT") + + QShortcut(QKeySequence(Qt.Key_Enter), self, self.fire) + QShortcut(QKeySequence(Qt.Key_Return), self, self.fire) + QShortcut(QKeySequence(Qt.CTRL | Qt.Key_Q), self, self.close) + + top_layout = QHBoxLayout() + top_layout.addWidget(shoot) + top_layout.addWidget(self.hits) + top_layout.addWidget(hits_label) + top_layout.addWidget(self._shots_left) + top_layout.addWidget(shots_left_label) + top_layout.addStretch(1) + top_layout.addWidget(restart) + + left_layout = QVBoxLayout() + left_layout.addWidget(angle) + left_layout.addWidget(force) + + cannon_layout = QVBoxLayout() + cannon_layout.addWidget(self._cannon_field) + cannon_box.setLayout(cannon_layout) + + grid_layout = QGridLayout(self) + grid_layout.addWidget(quit, 0, 0) + grid_layout.addLayout(top_layout, 0, 1) + grid_layout.addLayout(left_layout, 1, 0) + grid_layout.addWidget(cannon_box, 1, 1, 2, 1) + grid_layout.setColumnStretch(1, 10) + + angle.set_value(60) + force.set_value(25) angle.setFocus() - self.newGame() + self.new_game() - @QtCore.Slot() + @Slot() def fire(self): - if self.cannonField.gameOver() or self.cannonField.isShooting(): + if self._cannon_field.game_over() or self._cannon_field.is_shooting(): return - self.shotsLeft.display(self.shotsLeft.intValue() - 1) - self.cannonField.shoot() + self._shots_left.display(self._shots_left.intValue() - 1) + self._cannon_field.shoot() - @QtCore.Slot() + @Slot() def hit(self): self.hits.display(self.hits.intValue() + 1) - if self.shotsLeft.intValue() == 0: - self.cannonField.setGameOver() + if self._shots_left.intValue() == 0: + self._cannon_field.set_game_over() else: - self.cannonField.newTarget() + self._cannon_field.new_target() - @QtCore.Slot() + @Slot() def missed(self): - if self.shotsLeft.intValue() == 0: - self.cannonField.setGameOver() + if self._shots_left.intValue() == 0: + self._cannon_field.set_game_over() - @QtCore.Slot() - def newGame(self): - self.shotsLeft.display(15) + @Slot() + def new_game(self): + self._shots_left.display(15) self.hits.display(0) - self.cannonField.restartGame() - self.cannonField.newTarget() + self._cannon_field.restart_game() + self._cannon_field.new_target() -app = QtWidgets.QApplication(sys.argv) -board = GameBoard() -board.setGeometry(100, 100, 500, 355) -board.show() -sys.exit(app.exec_()) +if __name__ == '__main__': + app = QApplication(sys.argv) + board = GameBoard() + board.setGeometry(100, 100, 500, 355) + board.show() + sys.exit(app.exec()) |