贪吃蛇源码版

#include "gamewidget.h" #include "ui_gamewidget.h" #include <QKeyEvent> #include <QMouseEvent> #include <QPainter> #include <QPen> #include <QTimer> #include <QTime> #include <QMessageBox> gamewidget::gamewidget(QWidget *parent) : QDialog(parent), ui(new Ui::gamewidget) { ui->setupUi(this); ui->setupUi(this); this->setAutoFillBackground(true); this->setWindowIcon(QIcon(":/new/prefix1/img/1.png")); 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.wav"); //设置分数等级为0 score = 0; level = 0; str1=QString::number(score); str2=QString::number(level); ui->scoreshow->setText(str1); ui->levelshow->setText(str2); foodcount=0; //食物初始化 foodx=qrand()%COL; //初始化X foody=qrand()%ROW; //初始化 y direction=qrand()%4; //方向初始化 snake[0][0]=qrand()%COL; snake[0][1]=qrand()%ROW; int i = 1; while(i) //食物出现的位置 不能跟snake 头 位置一样 { 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); //设置snake 跑 快慢速度 connect(timer,SIGNAL(timeout()),this,SLOT(timeoutSlot())); //设置按钮操作 connect(ui->leftbtn,SIGNAL(clicked()),this,SLOT(leftbtnSlot())); connect(ui->rightbtn,SIGNAL(clicked()),this,SLOT(rightbtnSlot())); connect(ui->upbtn,SIGNAL(clicked()),this,SLOT(upbtnSlot())); connect(ui->downbtn,SIGNAL(clicked()),this,SLOT(downbtnSlot())); connect(ui->startbtn,SIGNAL(clicked()),this,SLOT(startbtnSlot())); connect(ui->stopbtn,SIGNAL(clicked()),this,SLOT(stopbtnSlot())); connect(ui->returnbtn,SIGNAL(clicked()),this,SLOT(returnbtnSlot())); //设置键盘操作 connect(this,SIGNAL(UpSignal()), ui->upbtn,SLOT(click())); connect(this,SIGNAL(DownSignal()), ui->downbtn,SLOT(click())); connect(this,SIGNAL(LeftSignal()), ui->leftbtn,SLOT(click())); connect(this,SIGNAL(RightSignal()), ui->rightbtn,SLOT(click())); } void gamewidget::timeoutSlot() { //判断是否吃到食物 if(snake[0][0]==foodx && snake[0][1]==foody) //当蛇头跟食物位置重合后 { //吃到食物发出声音 sound->play(); //如果吃到食物，食物坐标更新 foodcount++; score++; str1=QString::number(score); ui->scoreshow->setText(str1); foodx=qrand()%COL; //随机产生新的食物 foody=qrand()%ROW; int i=0; while(i<=foodcount) { i++; //判断食物是否出现在蛇身上，如果出现在蛇身上重新产生食物 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; case 40: timer->setInterval(100);level++; break; } str2=QString::number(level); ui->levelshow->setText(str2); // 吃了食物以后等级要判断跟随更新 } memcpy(snake1,snake,sizeof(snake)); //内存拷贝 ? for(int i=foodcount; i>=1; i--) // 实现蛇的游动 前面的坐标 赋值给后面的 { snake[i][0]=snake[i-1][0]; snake[i][1]=snake[i-1][1]; } switch(direction) //控制蛇头的移动 { case UP: snake[0][1]--; //向上Y 减1 break; case DOWN: snake[0][1]++; //向下Y 加1 break; case LEFT: snake[0][0]--; // 左 减1 break; case RIGHT: snake[0][0]++; //右 加 1 break; } //判断蛇是否撞到自身 for(int i=1; i<=foodcount; i++) { if(snake[0][0]==snake[i][0] && snake[0][1]==snake[i][1]) { sound1->play(); //GG 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) // 如果重新开始 { int i = 1; 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); ui->scoreshow->setText(str1); ui->levelshow->setText(str2); timer->start(); } return; } } //判断蛇是否撞到墙体 if(snake[0][0]<0 || snake[0][0]>=COL || snake[0][1]<0 || snake[0][1]>=ROW) { sound1->play(); //GG 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; t= QTime::currentTime(); qsrand(t.msec()+t.second()*1000); int i = 1; 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); ui->scoreshow->setText(str1); ui->levelshow->setText(str2); timer->start(); } else { delete this; return ; } } this->update(); } void gamewidget::paintEvent(QPaintEvent *) { //画方格 QPainter painter(this); // QPen _pen; // _pen.setStyle(Qt::DashLine); // painter.setPen(_pen); for(int i=0; i<ROW*20; i+=20) { for(int j=0; j<COL*20; j+=20) { painter.drawRect(j, i, 20, 20); } } //画食物 painter.drawImage(foodx*20, foody*20, QImage(":/new/prefix1/img/apple.png").scaled(QSize(20,20))); //画蛇头 switch(direction) { case UP: painter.drawImage(snake[0][0]*20, snake[0][1]*20, QImage(":/new/prefix1/img/headup.png").scaled(QSize(20,20))); break;//蛇头向上 case DOWN: painter.drawImage(snake[0][0]*20,snake[0][1]*20,QImage(":/new/prefix1/img/headdown.png").scaled(QSize(20,20))); break;//蛇头向下 case LEFT: painter.drawImage(snake[0][0]*20,snake[0][1]*20,QImage(":/new/prefix1/img/headleft.png").scaled(QSize(20,20))); break;//蛇头向下 case RIGHT: painter.drawImage(snake[0][0]*20,snake[0][1]*20,QImage(":/new/prefix1/img/headright.png").scaled(QSize(20,20))); break;//蛇头向下 } //画蛇身 for(int i=1; i<=foodcount; i++) { if(i != foodcount) { //对应四种情�