gamebrd.cpp

我在我的EP9315上写的两个QT程序

#include "gamebrd.h"

#include <qapplication.h>
#include <qpushbutton.h>
#include <qlcdnumber.h>
#include <qfont.h>
#include <qlayout.h>
#include <qlabel.h>

#include "lcdrange.h"
#include "cannon.h"

GameBoard::GameBoard( QWidget *parent, const char *name)
        :QWidget( parent, name)
{
  QPushButton *quit =new QPushButton("Quit",this,"quit");
  quit->setFont( QFont( "Times",18,QFont::Bold) );

  connect(quit,SIGNAL(clicked()),qApp,SLOT(quit()) );
  
  LCDRange *angle = new LCDRange( "ANGLE", this, "angle" );
  angle->setRange( 5, 70);
  
  LCDRange *force = new LCDRange( "FORCE", this, "force" );
  force->setRange( 10, 50 );

  cannonField
     =new CannonField( this,"cannonField" );
  
  connect( angle, SIGNAL(valueChanged(int)),cannonField,SLOT(setAngle(int)) );
  connect(cannonField,SIGNAL(angleChanged(int)),angle,SLOT(setValue(int))); 
  connect( force, SIGNAL(valueChanged(int)),cannonField,SLOT(setForce(int)) );
  connect(cannonField,SIGNAL(forceChanged(int)),force,SLOT(setValue(int))); 
  
  connect( cannonField,SINGAL(hit()), this,SLOT(hit()) );
  connect( cannonField,SINGAL(missed()), this,SLOT(missed()) );

  QPushButton *shoot =new QPushButton("Shoot",this,"shoot");
  shoot->setFont( QFont( "Times",18,QFont::Bold) );
  
  connect(shoot,SIGNAL(clicked()), SLOT(fire()) );
  connect(cannonField, SIGNAL(canshoot()), shoot,SLOT(setEnabled(bool)) );

  QPushButton *restart = new QPushButton( "&New Game", this, "newgame" );
  restart->setFont( QFont( "Times", 18, QFont::Bold ) );
  
  connect(restart,SIGNAL(clicked()), this,SLOT(newGame()) );

  hits = new QLCDNumber( 2, this, "hits" );
  shotsLeft = new QLCDNumber( 2, this, "shotsleft" );
  Qlabel *hitsL = new QLabel ( "HITS", this, "shotsLeftLabel" );

  
  QGridLayout *grid = new QGridLayout( this, 2, 2, 10);
  grid->addWidget( quit, 0, 0 );
 // grid->addWidget(angle,1, 0, Qt::AlignTop );
  grid->addWidget(cannonField, 1, 1);
  grid->setColStretch( 1, 10 );
  
  QVBoxLayout *leftBox = new QVBoxLayout ;
  grid->addLayout( leftBox, 1, 0 ); 
  leftBox->addWidget( angle );
  leftBox->addWidget( force );
 
  QHBoxLayout *topBox = new QHBoxLayout;
  grid->addLayout( topBox,0,1);
  topBox->addWidget( shoot );
  topBox->addWidget( hits );
  topBox->addWidget( hitsL );
  topBox->addWidget( shotsLeft );
  topBox->addWidget( shotsLeftL ); 
  topBox->addStretch( 1 );
  topBox->addWidget( restart );
   
  angle->setValue( 60 );
  force->setValue( 20 );
  angle->setFocus();

  newGame();
}

void GameBoard::fire()
{
 if (cannonField->gameOver() || cannonField->isShooting() )
 return;
 shotsLeft->display( shotsLeft->intValue() -1 );
 cannonField->shoot();
}

void GameBoard::hit()
{
 hits->display( hits->intValue()) + 1);
 if( shotsLeft->intValue() == 0 )
  cannonField->setGameOver();
 else
  cannonField->newTarget();
}

void GameBoard::missed()
{ 
 if( shotsLeft->intValue() == 0 )
  cannonField->setGameOver();
}

void GameBoard::newGame()
{
 shotsLeft->display( 15 );
 hits->display(0);
 cannonField->restartGame();
 cannonField->newTarget();
}