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331 lines
9.7 KiB
331 lines
9.7 KiB
13 years ago
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#!/usr/bin/env python
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# Qt tutorial 13.
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import sys
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import math
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import random
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import qt
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class LCDRange(qt.QWidget):
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def __init__(self, s=None, parent=None, name=None):
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qt.QWidget.__init__(self, parent, name)
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lcd = qt.QLCDNumber(2, self, "lcd")
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self.slider = qt.QSlider(qt.Qt.Horizontal, self, "slider")
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self.slider.setRange(0, 99)
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self.slider.setValue(0)
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self.label = qt.QLabel(" ", self, "label")
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self.label.setAlignment(qt.Qt.AlignCenter)
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self.connect(self.slider, qt.SIGNAL("valueChanged(int)"), lcd, qt.SLOT("display(int)"))
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self.connect(self.slider, qt.SIGNAL("valueChanged(int)"), self, qt.PYSIGNAL("valueChanged(int)"))
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self.setFocusProxy(self.slider)
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l = qt.QVBoxLayout(self)
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l.addWidget(lcd, 1)
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l.addWidget(self.slider)
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l.addWidget(self.label)
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if s is not None:
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self.setText(s)
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def value(self):
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return self.slider.value()
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def setValue(self, value):
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self.slider.setValue(value)
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def setRange(self, minVal, maxVal):
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if minVal < 0 or maxVal > 99 or minVal > maxVal:
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raise ValueError, "LCDRange.setRange(): invalid range"
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self.slider.setRange(minVal, maxVal)
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def text(self):
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return self.label.text()
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def setText(self, s):
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self.label.setText(s)
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class CannonField(qt.QWidget):
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def __init__(self, parent=None, name=None):
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qt.QWidget.__init__(self, parent, name)
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self.ang = 45
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self.f = 0
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self.timerCount = 0
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self.autoShootTimer = qt.QTimer(self, "movement handler")
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self.connect(self.autoShootTimer, qt.SIGNAL("timeout()"), self.moveShot)
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self.shoot_ang = 0
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self.shoot_f = 0
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self.target = qt.QPoint(0, 0)
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self.gameEnded = 0
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self.setPalette(qt.QPalette(qt.QColor(250, 250, 200)))
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self.barrelRect = qt.QRect(33, -4, 15, 8)
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self.newTarget()
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def angle(self):
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return self.ang
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def setAngle(self, degrees):
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if degrees < 5:
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degrees = 5
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if degrees > 70:
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degrees = 70
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if self.ang == degrees:
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return
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self.ang = degrees
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self.repaint(self.cannonRect(), 0)
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self.emit(qt.PYSIGNAL("angleChanged(int)"), (self.ang, ))
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def force(self):
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return self.f
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def setForce(self, newton):
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if newton < 0:
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newton = 0
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if self.f == newton:
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return
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self.f = newton
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self.emit(qt.PYSIGNAL("forceChanged(int)"), (self.f, ))
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def shoot(self):
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if self.isShooting():
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return
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self.timerCount = 0
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self.shoot_ang = self.ang
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self.shoot_f = self.f
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self.autoShootTimer.start(50)
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self.emit(qt.PYSIGNAL("canShoot(bool)"), (0, ))
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def newTarget(self):
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r = qt.QRegion(self.targetRect())
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self.target = qt.QPoint(random.randint(200, 390), random.randint(10, 265))
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self.repaint(r.unite(qt.QRegion(self.targetRect())))
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def gameOver(self):
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return self.gameEnded
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def setGameOver(self):
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if self.gameEnded:
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return
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if self.isShooting():
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self.autoShootTime.stop()
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self.gameEnded = 1
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self.repaint()
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def restartGame(self):
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if self.isShooting():
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self.autoShootTime.stop()
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self.gameEnded = 0
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self.repaint()
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self.emit(qt.PYSIGNAL("canShoot(bool)"), (1, ))
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def moveShot(self):
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r = qt.QRegion(self.shotRect())
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self.timerCount = self.timerCount + 1
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shotR = self.shotRect()
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if shotR.intersects(self.targetRect()):
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self.autoShootTimer.stop()
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self.emit(qt.PYSIGNAL("hit()"), ())
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self.emit(qt.PYSIGNAL("canShoot(bool)"), (1, ))
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elif shotR.x() > self.width() or shotR.y() > self.height():
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self.autoShootTimer.stop()
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self.emit(qt.PYSIGNAL("missed()"), ())
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self.emit(qt.PYSIGNAL("canShoot(bool)"), (1, ))
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else:
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r = r.unite(qt.QRegion(shotR))
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self.repaint(r)
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def paintEvent(self, ev):
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updateR = ev.rect()
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p = qt.QPainter(self)
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if self.gameEnded:
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p.setPen(qt.Qt.black)
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p.setFont(qt.QFont("Courier", 48, qt.QFont.Bold))
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p.drawText(self.rect(), qt.Qt.AlignCenter, "Game Over")
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if updateR.intersects(self.cannonRect()):
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self.paintCannon(p)
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if self.isShooting() and updateR.intersects(self.shotRect()):
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self.paintShot(p)
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if not self.gameEnded and updateR.intersects(self.targetRect()):
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self.paintTarget(p)
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def paintShot(self, p):
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p.setBrush(qt.Qt.black)
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p.setPen(qt.Qt.NoPen)
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p.drawRect(self.shotRect())
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def paintTarget(self, p):
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p.setBrush(qt.Qt.red)
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p.setPen(qt.Qt.black)
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p.drawRect(self.targetRect())
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def paintCannon(self, p):
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cr = self.cannonRect()
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pix = qt.QPixmap(cr.size())
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pix.fill(self, cr.topLeft())
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tmp = qt.QPainter(pix)
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tmp.setBrush(qt.Qt.blue)
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tmp.setPen(qt.Qt.NoPen)
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tmp.translate(0, pix.height() - 1)
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tmp.drawPie(qt.QRect(-35, -35, 70, 70), 0, 90 * 16)
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tmp.rotate(-self.ang)
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tmp.drawRect(self.barrelRect)
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tmp.end()
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p.drawPixmap(cr.topLeft(), pix)
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def cannonRect(self):
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r = qt.QRect(0, 0, 50, 50)
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r.moveBottomLeft(self.rect().bottomLeft())
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return r
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def shotRect(self):
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gravity = 4.0
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time = self.timerCount / 4.0
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velocity = self.shoot_f
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radians = self.shoot_ang * 3.14159265 / 180
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velx = velocity * math.cos(radians)
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vely = velocity * math.sin(radians)
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x0 = (self.barrelRect.right() + 5) * math.cos(radians)
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y0 = (self.barrelRect.right() + 5) * math.sin(radians)
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x = x0 + velx * time
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y = y0 + vely * time - 0.5 * gravity * time * time
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r = qt.QRect(0, 0, 6, 6)
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r.moveCenter(qt.QPoint(x, self.height() - 1 - y))
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return r
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def targetRect(self):
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r = qt.QRect(0, 0, 20, 10)
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r.moveCenter(qt.QPoint(self.target.x(), self.height() - 1 - self.target.y()))
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return r
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def isShooting(self):
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return self.autoShootTimer.isActive()
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def sizePolicy(self):
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return qt.QSizePolicy(qt.QSizePolicy.Expanding, qt.QSizePolicy.Expanding)
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class GameBoard(qt.QWidget):
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def __init__(self, parent=None, name=None):
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qt.QWidget.__init__(self, parent, name)
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quit = qt.QPushButton("&Quit", self, "quit")
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quit.setFont(qt.QFont("Times", 18, qt.QFont.Bold))
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self.connect(quit, qt.SIGNAL("clicked()"), qt.qApp, qt.SLOT("quit()"))
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self.angle = LCDRange("ANGLE", self, "angle")
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self.angle.setRange(5, 70)
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self.force = LCDRange("FORCE", self, "force")
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self.force.setRange(10, 50)
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self.cannonField = CannonField(self, "cannonField")
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self.connect(self.angle, qt.PYSIGNAL("valueChanged(int)"), self.cannonField.setAngle)
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self.connect(self.cannonField, qt.PYSIGNAL("angleChanged(int)"), self.angle.setValue)
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self.connect(self.force, qt.PYSIGNAL("valueChanged(int)"), self.cannonField.setForce)
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self.connect(self.cannonField, qt.PYSIGNAL("forceChanged(int)"), self.force.setValue)
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self.connect(self.cannonField, qt.PYSIGNAL("hit()"), self.hit)
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self.connect(self.cannonField, qt.PYSIGNAL("missed()"), self.missed)
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self.shoot = qt.QPushButton("&Shoot", self, "shoot")
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self.shoot.setFont(qt.QFont("Times", 18, qt.QFont.Bold))
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self.connect(self.shoot, qt.SIGNAL("clicked()"), self.fire)
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self.connect(self.cannonField, qt.PYSIGNAL("canShoot(bool)"), self.shoot, qt.SLOT("setEnabled(bool)"))
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restart = qt.QPushButton("&New Game", self, "newgame")
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restart.setFont(qt.QFont("Times", 18, qt.QFont.Bold))
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self.connect(restart, qt.SIGNAL("clicked()"), self.newGame)
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self.hits = qt.QLCDNumber(2, self, "hits")
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self.shotsLeft = qt.QLCDNumber(2, self, "shotsleft")
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hitsL = qt.QLabel("HITS", self, "hitsLabel")
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shotsLeftL = qt.QLabel("SHOTS LEFT", self, "shotsleftLabel")
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grid = qt.QGridLayout(self, 2, 2, 10)
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grid.addWidget(quit, 0, 0)
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grid.addWidget(self.cannonField, 1, 1)
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grid.setColStretch(1, 10)
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leftBox = qt.QVBoxLayout()
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grid.addLayout(leftBox, 1, 0)
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leftBox.addWidget(self.angle)
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leftBox.addWidget(self.force)
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topBox = qt.QHBoxLayout()
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grid.addLayout(topBox, 0, 1)
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topBox.addWidget(self.shoot)
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topBox.addWidget(self.hits)
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topBox.addWidget(hitsL)
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topBox.addWidget(self.shotsLeft)
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topBox.addWidget(shotsLeftL)
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topBox.addStretch(1)
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topBox.addWidget(restart)
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self.angle.setValue(60)
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self.force.setValue(25)
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self.angle.setFocus()
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self.newGame()
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def fire(self):
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if self.cannonField.gameOver() or self.cannonField.isShooting():
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return
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self.shotsLeft.display(self.shotsLeft.intValue() - 1)
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self.cannonField.shoot()
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def hit(self):
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self.hits.display(self.hits.intValue() + 1)
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if self.shotsLeft.intValue() == 0:
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self.cannonField.setGameOver()
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else:
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self.cannonField.newTarget()
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def missed(self):
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if self.shotsLeft.intValue() == 0:
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self.cannonField.setGameOver()
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def newGame(self):
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self.shotsLeft.display(15)
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self.hits.display(0)
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self.cannonField.restartGame()
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self.cannonField.newTarget()
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qt.QApplication.setColorSpec(qt.QApplication.CustomColor)
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a = qt.QApplication(sys.argv)
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gb = GameBoard()
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gb.setGeometry(100, 100, 500, 355)
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a.setMainWidget(gb)
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gb.show()
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sys.exit(a.exec_loop())
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