C++，基于QT的贪吃蛇

#include "GameWidget.h" #define ROW 13 #define COL 16 #define UP 0 #define DOWN 1 #define LEFT 2 #define RIGHT 3 GameWidget::GameWidget(QWidget *parent) : QWidget(parent) { this->setAutoFillBackground(true); this->setWindowTitle("游戏开始"); this->setWindowIcon(QIcon(":/new/prefix1/img/1.png")); this->resize(700,500); this->setMaximumSize(700,480); QPalette palette; palette.setBrush(QPalette::Background,QBrush(QPixmap(":/new/prefix1/img/green.jpg").scaled(this->size()))); this->setPalette(palette); //声音区 sound=new QSound(":/listen/img/5611.wav"); sound1=new QSound(":/listen/img/die.mp3"); //按钮区 upbtn=new QPushButton("↑",this); upbtn->setGeometry(QRect(580,280,40,30)); leftbtn=new QPushButton("←",this); leftbtn->setGeometry(QRect(540,320,40,30)); rightbtn=new QPushButton("→",this); rightbtn->setGeometry(QRect(620,320,40,30)); downbtn=new QPushButton("↓",this); downbtn->setGeometry(QRect(580,360,40,30)); startbtn=new QPushButton("开始",this); startbtn->setGeometry(QRect(540,400,40,30)); returnbtn=new QPushButton("返回",this); returnbtn->setGeometry(QRect(620,400,40,30)); //设置分数等级为0 score=0; level=0; Init_db(); maxnum=GetMaxnum(); //显示分数等级标签区 QFont font; font.setFamily("Consolas"); font.setBold(true); font.setPixelSize(20); maxscore=new QLabel("最高分:",this); maxscore->setFont(font); maxscore->setGeometry(QRect(540,1,70,30)); scorelabel=new QLabel("分数:",this); scorelabel->setFont(font); scorelabel->setGeometry(QRect(540,30,60,30)); levellabel=new QLabel("等级:",this); levellabel->setFont(font); levellabel->setGeometry(QRect(540,60,60,30)); str1=QString::number(score); str2=QString::number(level); str3=QString::number(maxnum); maxshow=new QLabel(this); maxshow->setFont(font); maxshow->setGeometry(QRect(620,1,60,30)); maxshow->setText(str3); scoreshow=new QLabel(this); scoreshow->setFont(font); scoreshow->setGeometry(QRect(620,30,60,30)); scoreshow->setText(str1); levelshow=new QLabel(this); levelshow->setFont(font); levelshow->setGeometry(QRect(620,60,60,30)); levelshow->setText(str2); connect(leftbtn,SIGNAL(clicked()),this,SLOT(leftbtnSlot())); connect(rightbtn,SIGNAL(clicked()),this,SLOT(rightbtnSlot())); connect(upbtn,SIGNAL(clicked()),this,SLOT(upbtnSlot())); connect(downbtn,SIGNAL(clicked()),this,SLOT(downbtnSlot())); connect(startbtn,SIGNAL(clicked()),this,SLOT(startbtnSlot())); connect(returnbtn,SIGNAL(clicked()),this,SLOT(returnbtnSlot())); connect(this,SIGNAL(UpSignal()),upbtn,SLOT(click())); connect(this,SIGNAL(DownSignal()),downbtn,SLOT(click())); connect(this,SIGNAL(LeftSignal()),leftbtn,SLOT(click())); connect(this,SIGNAL(RightSignal()),rightbtn,SLOT(click())); foodcount=0; int i=1; QTime t; t= QTime::currentTime(); qsrand(t.msec()+t.second()*1000); snake[0][0]=qrand()%COL; snake[0][1]=qrand()%ROW; foodx=qrand()%COL; foody=qrand()%ROW; direction=qrand()%4; while(i) { if(snake[0][0]==foodx&&snake[0][1]==foody) { foodx=qrand()%COL; foody=qrand()%ROW; i=1; } else i=0; } timer=new QTimer(this); timer->setInterval(500); connect(timer,SIGNAL(timeout()),this,SLOT(timeoutSlot())); } GameWidget::~GameWidget() { SetMaxnum(); delete startbtn; delete returnbtn; delete leftbtn; delete rightbtn; delete upbtn; delete downbtn; delete timer; delete sound; delete sound1; } void GameWidget::upbtnSlot() { if(direction!=DOWN) direction=UP; return; } void GameWidget::downbtnSlot() { if(direction!=UP) direction=DOWN; return; } void GameWidget::leftbtnSlot() { if(direction!=RIGHT) direction=LEFT; return; } void GameWidget::rightbtnSlot() { if(direction!=LEFT) direction=RIGHT; return; } void GameWidget::startbtnSlot() { timer->start(); } void GameWidget::returnbtnSlot() { delete this; } void GameWidget::timeoutSlot() { if(snake[0][0]==foodx&&snake[0][1]==foody) { sound->play(); int i=0; foodcount++; score++; str1=QString::number(score); scoreshow->setText(str1); if(score>maxnum) { maxnum=score; str3=QString::number(maxnum); maxshow->setText(str3); } QTime t; t= QTime::currentTime(); qsrand(t.msec()+t.second()*1000); foodx=qrand()%COL; foody=qrand()%ROW; while(i<=foodcount) { i++; if(snake[i][0]==foodx&&snake[i][1]==foody) { foodx=qrand()%COL; foody=qrand()%ROW; i=0; } } switch(score) { case 10:timer->setInterval(350);level++;break; case 20:timer->setInterval(250);level++;break; case 30:timer->setInterval(150);level++;break; } str2=QString::number(level); levelshow->setText(str2); } memcpy(snake1,snake,sizeof(snake)); for(int i=foodcount;i>=1;i--) { snake[i][0]=snake[i-1][0]; snake[i][1]=snake[i-1][1]; } switch(direction) { case UP:snake[0][1]--;break; case DOWN:snake[0][1]++;break; case LEFT:snake[0][0]--;break; case RIGHT:snake[0][0]++;break; } for(int i=1;i<=foodcount;i++) { if(snake[0][0]==snake[i][0]&&snake[0][1]==snake[i][1]) { sound1->play(); memcpy(snake,snake1,sizeof(snake)); timer->stop(); if(QMessageBox::question(this,"提示","游戏结束,是否重新游戏",QMessageBox::Yes,QMessageBox::No)==QMessageBox::Yes) { QTime t; int i; t= QTime::currentTime(); qsrand(t.msec()+t.second()*1000); snake[0][0]=qrand()%COL; snake[0][1]=qrand()%ROW; direction=qrand()%4; foodx=qrand()%COL; foody=qrand()%ROW; while(i) { if(snake[0][0]==foodx&&snake[0][1]==foody) { foodx=qrand()%COL; foody=qrand()%ROW; i=1; } else i=0; } foodcount=0; score=0; level=0; str1=QString::number(score); str2=QString::number(level); scoreshow->setText(str1); levelshow->setText(str2); } return; } } if(snake[0][0]<0||snake[0][0]>=COL||snake[0][1]<0||snake[0][1]>=ROW) { sound1->play(); memcpy(snake,snake1,sizeof(snake)); timer->stop(); if(QMessageBox::question(this,"提示","游戏结束,是否重新游戏",QMessageBox::Yes,QMessageBox::No)==QMessageBox::Yes) { QTime t; int i; t= QTime::currentTime(); qsrand(t.msec()+t.second()*1000); snake[0][0]=qrand()%COL; snake[0][1]=qrand()%ROW; direction=qrand()%4; foodx=qrand()%COL; foody=qrand()%ROW; while(i)