cpp
复制代码
#include "MapScene.h"
#include <QDebug>
#include <QMessageBox>
#include <QPushButton>
#include <vector>
#include <QPainter>
#include "data.h"
#include <QJsonDocument>
#include <QJsonObject>
#include "User.h"
#include <QDateTime>
#include "NetworkManager.h"
MapScene::MapScene(QWidget *parent,int row,int col,Snake* snake,int speed) : BaseScene(parent),row(row),col(col),snake(snake),speed(speed)
{
// srand((unsigned)time(NULL)); //亂數種
//載入和設置CSS樣式表
QFile cssFile;
cssFile.setFileName("./css/mapScene.css");
cssFile.open(QIODevice::ReadOnly);
QString styleSheet = cssFile.readAll();
cssFile.close();
this->setStyleSheet(styleSheet);
//對界面進行基本的設置(只需做一次)
int mapWidth = col*snake->getSize(),mapHeight = row*snake->getSize();
int controlBarHeight = 50;
this->setFixedSize(mapWidth,mapHeight+controlBarHeight);
this->setWindowTitle(u8"【SuperSnake】遊戲界面");
//主要的初始化
this->initControlBar(mapWidth,mapHeight,controlBarHeight); //初始化最底下的控制欄
this->initMap();
//介紹遊戲操作的對話框
QMessageBox::information(this,u8"提示",u8"【操作說明】使用W、A、S、D改變蛇的運動方向(注:WASD對應上下左右)");
connect(gameTimer,&QTimer::timeout,this,&MapScene::onGameRunning);
}
//更新排行榜( 注:不同速度有不同的記錄 )
/*
* 排行榜.json的儲存格式:
* {
* "speed1":{
* "userId": {
"maxScore": XXX,
"userName": "XXX"
"date":"XXX"
}
* },
*
* "speed2":{},
* "speed3":{}
* //....
* }
*/
bool MapScene::updateRankList(){
/* 打開文件 */
QFile rankListFile;
rankListFile.setFileName(rankListPath);
rankListFile.open(QIODevice::ReadOnly);
QByteArray rankListData = rankListFile.readAll(); //讀取所有內容
QJsonDocument jsonDoc = QJsonDocument::fromJson(rankListData); //將數據解析為Json格式
QJsonObject jsonObj = jsonDoc.object(); //轉為QJsonObject類型
/* 獲取各種信息 */
QString userId = User::getCurrentUserId();
QString userName = User::getCurrentUserName();
QString speed = QString::number(this->speed);
QDateTime current_date_time =QDateTime::currentDateTime();
QString current_date =current_date_time.toString("yyyy-MM-dd");
QJsonObject speedObj = jsonObj[speed].toObject();
//當【指定速度的排行榜】不包含當前的userId時,代表第一次遊玩該速度,可直接記錄該速度的排行榜中
if(!speedObj.contains(userId)){
QJsonObject newRankRecord;
newRankRecord.insert("userName",userName);
newRankRecord.insert("maxScore",score);
newRankRecord.insert("date",current_date);
speedObj.insert(userId,newRankRecord);
}else{
int maxScore = speedObj[userId].toObject()["maxScore"].toInt();
//當局分數<=最高分時,不作記錄,直接返回
if(score<=maxScore){
rankListFile.close();
return false;
}
//更新最高分
QJsonObject userIdObj = speedObj[userId].toObject();
userIdObj["maxScore"] = score;
userIdObj["date"] = current_date;
speedObj[userId] = userIdObj;
}
rankListFile.close();
rankListFile.open(QIODevice::WriteOnly);
/* 更新排行榜內容 */
jsonObj[speed] = speedObj;
jsonDoc.setObject(jsonObj);
rankListFile.write(jsonDoc.toJson());
rankListFile.close();
return true;
}
bool MapScene::updateRankList(QString url){
QByteArray rankListData = NetworkManager::get(url);
QJsonDocument jsonDoc = QJsonDocument::fromJson(rankListData); //將數據解析為Json格式
QJsonObject jsonObj = jsonDoc.object(); //轉為QJsonObject類型
/* 獲取各種信息 */
QString userId = User::getCurrentUserId();
QString userName = User::getCurrentUserName();
QString speed = QString::number(this->speed);
QDateTime current_date_time = QDateTime::currentDateTime();
QString current_date =current_date_time.toString("yyyy-MM-dd");
QJsonObject speedObj = jsonObj[speed].toObject();
//當【指定速度的排行榜】不包含當前的userId時,代表第一次遊玩該速度,可直接記錄該速度的排行榜中
if(!speedObj.contains(userId)){
QJsonObject newRankRecord;
newRankRecord.insert("userName",userName);
newRankRecord.insert("maxScore",score);
newRankRecord.insert("date",current_date);
speedObj.insert(userId,newRankRecord);
}else{
int maxScore = speedObj[userId].toObject()["maxScore"].toInt();
//當局分數<=最高分時,不作記錄,直接返回
if(score<=maxScore){
return false;
}
//更新最高分
QJsonObject userIdObj = speedObj[userId].toObject();
userIdObj["maxScore"] = score;
userIdObj["date"] = current_date;
speedObj[userId] = userIdObj;
}
/* 更新排行榜內容 */
jsonObj[speed] = speedObj;
jsonDoc.setObject(jsonObj);
NetworkManager::put(url,jsonDoc);
return true;
}
void MapScene::onGameRunning(){
snake->move();
moveFlag = true; //表示上一次的【方向指令】已執行完成,可以接收下一個【方向指令】
/*取得蛇的各項信息*/
int snakeSize = snake->getSize();
std::vector<Point> snakeCoords = snake->getCoords();
Point foodCoord = food->getCoor();
//獲取食物座標
int snakeNum = snake->getNum();
//判斷蛇有無吃東西
if(isSnakeEat(snakeCoords,foodCoord)){
snake->addNum();
food->createFood(this->row,this->col,snakeCoords);
score+=100; //每食一個食物+100分
scoreLabel->setText(QString(u8"分數:%1").arg(score));
scoreLabel->adjustSize(); //防止分數顯示不完全
snake->setSnakeColor(QColor(rand()%256,rand()%256,rand()%256)); //改變蛇的顏色
}
//判斷蛇是否死亡
if(isSnakeDead(snakeCoords,snakeSize,snakeNum)){
gameTimer->stop();
QString server = User::getCurrentServer();
NetworkManager nw;
bool ret;
if(server == "local"){
ret = updateRankList();
}
else{
nw.createLoadDialog();
ret = updateRankList(webJsonUrl_RL);
}
QString resultStr = QString(u8"你的分數為:%1").arg(score);
if(!ret){
resultStr+=" >>排行榜沒有任何改變@@<<";
}else{
resultStr+=" >>排行榜已更新^.^<<";
}
/* 注:QMessageBox要放在initMap()的之後,因為它是模態對話框,會阻塞進程,從而導致一些bug */
this->initMap();
if(server == u8"web")nw.closeLoadDialog();
QMessageBox::information(this,u8"遊戲結束",resultStr);
}
update(); //手動調用paintEvent
}
void MapScene::initControlBar(int mapWidth,int mapHeight,int controlBarHeight){
//開始遊戲的按鈕
QPushButton* startGameBtn = new QPushButton(u8"開始遊戲",this);
startGameBtn->setFont(QFont(u8"Adobe 楷体 Std R",14));
startGameBtn->adjustSize();
startGameBtn->move(mapWidth*0.03,mapHeight+controlBarHeight/2-startGameBtn->height()/2);
connect(startGameBtn,&QPushButton::clicked,[this](){
gameTimer->start();
});
//暫停遊戲的按鈕
QPushButton* pauseGameBtn = new QPushButton(u8"暫停遊戲",this);
pauseGameBtn->setFont(QFont(u8"Adobe 楷体 Std R",14));
pauseGameBtn->adjustSize();
pauseGameBtn->move(mapWidth*0.05+startGameBtn->width()+10,mapHeight+controlBarHeight/2-pauseGameBtn->height()/2);
connect(pauseGameBtn,&QPushButton::clicked,[this](){
gameTimer->stop();
});
//返回的按鈕
QPushButton* backBtn = new QPushButton(u8"返回",this);
backBtn->setFont(QFont(u8"Adobe 楷体 Std R",14));
backBtn->adjustSize();
backBtn->move(mapWidth*0.95-backBtn->width(),mapHeight+controlBarHeight/2-backBtn->height()/2);
connect(backBtn,&QPushButton::clicked,[this](){
gameTimer->stop();
this->close();
//發送返回【設定界面】的信號
emit backToSettingScene();
});
scoreLabel = new QLabel(u8"分數:0",this);
scoreLabel->setFont(QFont(u8"Adobe 楷体 Std R",14));
scoreLabel->adjustSize();
scoreLabel->move(mapWidth*0.05+startGameBtn->width()+pauseGameBtn->width()+20,mapHeight+controlBarHeight/2-scoreLabel->height()/2);
}
// 畫蛇的函數
void MapScene::drawSnake(QPainter& painter,std::vector<Point>& snakeCoords,int snakeNum,int snakeSize){
QColor snakeColor = snake->getSnakeColor();
//設置畫家各項屬性
painter.setPen(QPen(snakeColor));
painter.setBrush(QBrush(snakeColor));
//畫蛇
for(int i = 0;i<snakeNum;i++){
painter.drawRect(snakeCoords[i].x,snakeCoords[i].y,snakeSize,snakeSize);
}
}
//畫食物的函數
void MapScene::drawFood(QPainter& painter,int snakeSize){
//設置畫家各項屬性
painter.setPen(QColor());
//創建畫刷
QBrush brush(QColor(255,255,0));;
painter.setBrush(brush);
Point foodCoor = food->getCoor();
painter.drawEllipse(foodCoor.x,foodCoor.y,snakeSize,snakeSize);
}
//判斷蛇是否死亡
bool MapScene::isSnakeDead(std::vector<Point>& snakeCoords,int& snakeSize,int& snakeNum){
//檢查蛇有無超出邊界
if(snakeCoords[0].x<0 || snakeCoords[0].x>=this->col*snakeSize || snakeCoords[0].y<0 || snakeCoords[0].y>=this->row*snakeSize )return true;
//檢查有沒有碰到自己
for(int i = 1;i < snakeNum;i++){
if(snakeCoords[0].x == snakeCoords[i].x && snakeCoords[0].y == snakeCoords[i].y )return true;
}
return false;
}
//判斷蛇有無吃東西
bool MapScene::isSnakeEat(std::vector<Point>& snakeCoords,Point& foodCoord){
//檢查蛇頭有沒有吃到食物
if(snakeCoords[0].x == foodCoord.x && snakeCoords[0].y == foodCoord.y)return true;
return false;
}
// 繪圖事件
void MapScene::paintEvent(QPaintEvent* event){
QPainter painter(this);
int snakeSize = snake->getSize();
std::vector<Point> snakeCoords = snake->getCoords();
int snakeNum = snake->getNum();
//分隔線:分開遊戲區域和控制區域
painter.drawLine(0,row*snakeSize,col*snakeSize,row*snakeSize);
drawFood(painter,snakeSize);
drawSnake(painter,snakeCoords,snakeNum,snakeSize);
}
// 通過 wasd 改變蛇的方向
void MapScene::changeSnakeDir(QKeyEvent* event){
// wasd->上下左右
//通過wasd改變蛇的運動方向
int snakeDir = snake->getDir();
switch(event->key()){
case Qt::Key_W:
if(snakeDir!=DOWN){
snake->setDir(UP);
moveFlag = false;
}
break;
case Qt::Key_A:
if(snakeDir!=RIGHT){
snake->setDir(LEFT);
moveFlag = false;
}
break;
case Qt::Key_S:
if(snakeDir!=UP){
snake->setDir(DOWN);
moveFlag = false;
}
break;
case Qt::Key_D:
if(snakeDir!=LEFT){
snake->setDir(RIGHT);
moveFlag = false;
}
break;
}
}
//鍵盤點擊事件
void MapScene::keyPressEvent(QKeyEvent* event){
//當moveFlag為false時,代表上一次發出的【方向指令】還在使用中,故直接return,防止有bug
if(!moveFlag)return;
changeSnakeDir(event);
}
void MapScene::initMap(){
//設置定時器
if(!gameTimer)gameTimer = new QTimer(this);
gameTimer->setInterval(100/speed);
//初始化食物對象
if(!food)food = new Food(snake->getSize());
food->createFood(this->row,this->col,snake->getCoords());
//初始化蛇
snake->init();
//重置分數
score = 0;
scoreLabel->setText(QString(u8"分數:%1").arg(score));
scoreLabel->adjustSize();
}
MapScene::~MapScene(){
//因為food沒有加入到【對象樹】中,所以要手動釋放
if(food!=nullptr){
delete food;
food = nullptr;
}
}