#include "widget.h"
#include "ui_widget.h"
#include"QFileDialog"
#include<QPainter>//画家的头文件
#include"QRect"
#include<QKeyEvent>
#include"qtimer.h"
#include"qpushbutton.h"
#include"gamemap.h"
#include"QMessageBox"
#include"QMouseEvent"
#include"qaudiooutput.h"
#include"qslider.h"
Widget::Widget(QWidget *parent)
    : QWidget(parent)
    , ui(new Ui::Widget)
{
    ui->setupUi(this);
    this->setWindowIcon(QIcon(":/image/Man.png"));
    //音频相关
    mmedia=new QMediaPlayer(this);
    audiooutput=new QAudioOutput(this);
    mmedia->setAudioOutput(audiooutput);
    s=new QSlider(this);
    s->setMaximum(100);
    s->setMinimum(0);
    s->setValue(50);
    s->move(740,390);
    mmedia->setAudioOutput(audiooutput);
    mmedia ->setLoops(-1);
    audiooutput->setVolume(0.5);
    connect(s,&QSlider::valueChanged,audiooutput,[this](){audiooutput->setVolume(s->value()/100.0);});

    QFont f1("宋体",13);
     but7=new QPushButton(this);
    but7->setText("播放音乐");
    but7->move(800,350);
    but7->resize(100,50);
    but7->setFont(f1);
    connect(but7,&QPushButton::clicked,mmedia,&QMediaPlayer::play);

     but6=new QPushButton(this);
    but6->setText("关闭音乐");
    but6->move(800,430);
    but6->resize(100,50);
    but6->setFont(f1);
    connect(but6,&QPushButton::clicked,mmedia,&QMediaPlayer::stop);


    this->setFocusPolicy(Qt::StrongFocus);

    //初始化地图元素
    mPMap=new gamemap(this);
    mMapPainter=new QPainter(this);//创建画家
    mRole=new Role(this);
    mTimer=new QTimer(this);
    mTimer->start(100);

    startgame(0);
     but=new QPushButton(this);
    but->setText("第一关");
    but->move(100,0);;
    connect(but,&QPushButton::clicked,this,[this](){this->startgame(1);
        mRole->resetPos();
    });

    but1=new QPushButton(this);
    but1->setText("第二关");
    but1->move(200,0);
    connect(but1,&QPushButton::clicked,this,[this](){this->startgame(2);
    mRole->resetPos();});

    but3=new QPushButton(this);
    but3->setText("第三关");
    but3->move(300,0);
    connect(but3,&QPushButton::clicked,this,[this](){this->startgame(3);
    mRole->resetPos();});

    but4=new QPushButton(this);
    but4->setText("自选关卡");
    but4->move(400,0);
    connect(but4,&QPushButton::clicked,this,[this](){this->startgame(4);
    mRole->resetPos();});

    but2=new QPushButton(this);
    //QIcon icon(":/Icon/eggshell.png");
    //but2->setIcon(icon);
    but2->setStyleSheet("background-image:url(:/Icon/eggshell.png);border:0px");
    but2->move(600,540);
    connect(but2,&QPushButton::clicked,this,[this](){this->startgame(5);
    mRole->resetPos();});

    but5=new QPushButton(this);
    but5->setText("退出游戏");
    but5->resize(100,50);
    but5->move(800,510);
    but5->setFont(f1);
    connect(but5,&QPushButton::clicked,this,[this](){this->close();});

    but8=new QPushButton(this);
    but8->move(800,270);
    but8->resize(100,50);
    but8->setText("自制地图");
    but8->setFont(f1);
    connect(but8,&QPushButton::clicked,this,[this](){this->w->show();});

    //定时调用更新函数
    connect(mTimer,&QTimer::timeout,[this](){this->update();});//计时器每完成一次，就update一下
    setFixedSize(1140,720);

    this->update();
}

Widget::~Widget()
{
    delete audiooutput;
    delete mRole;
    delete mTimer;
    delete mmedia;
    delete s;
    delete ui;
    delete w;
    delete but;
    delete but1;
    delete but2;
    delete but3;
    delete but4;
    delete but5;
    delete but6;
    delete but7;
    delete but8;
}

void Widget::paintEvent(QPaintEvent *event)
{
    mMapPainter->begin(this);//设置画布

    //绘制背景
    QPainter BackgroundPainter(this);
    BackgroundPainter.drawImage(QRect(0,0,1140,720),QImage("://image/background.jpg"));
    //画地图
    mPMap->Paint(mMapPainter,QPoint(160,160));
    //画人物
    mRole->Paint(mMapPainter,QPoint(160,160));

    QPainter painter(this);
    painter.setPen(Qt::black);
    painter.setFont(QFont("华文行楷",12));
    painter.drawText(715,380,"音量调节");
    mMapPainter->end();//结束
}
void Widget::Collision(int dRow,int dCol)
{
    //判断位置
    int newRow=mRole->mRow+dRow;
    int newCol=mRole->mCol+dCol;
    //前方是障碍物
    if(mPMap->mparr[newRow][newCol]!=Road&&mPMap->mparr[newRow][newCol]!=target&&mPMap->mparr[newRow][newCol]!=correct&&mPMap->mparr[newRow][newCol]!=Box)
    {
        return;
    }
    else if(mPMap->mparr[newRow][newCol]==Box)//如果角色的前方是箱子或是放在正确位置的箱子
    {
        if(mPMap->mparr[newRow+dRow][newCol+dCol]==Road)
        {
            //移动箱子，改变地图
            mPMap->mparr[newRow+dRow][newCol+dCol]=Box;
            mPMap->mparr[newRow][newCol]=Road;
        }
        else if(mPMap->mparr[newRow+dRow][newCol+dCol]==target)
        {
            //移动箱子，改变地图
            mPMap->mparr[newRow+dRow][newCol+dCol]=correct;
            mPMap->mparr[newRow][newCol]=Road;
        }
        else
        {
            return;
        }
    }
    else if(mPMap->mparr[newRow][newCol]==correct)
    {
        if(mPMap->mparr[newRow+dRow][newCol+dCol]==Road)//箱子的前方是路
        {
            //移动箱子，改变地图
            mPMap->mparr[newRow+dRow][newCol+dCol]=Box;
            mPMap->mparr[newRow][newCol]=target;
        }
        else if(mPMap->mparr[newRow+dRow][newCol+dCol]==target)//箱子的前方是目标点
        {
            //移动箱子，改变地图
            mPMap->mparr[newRow+dRow][newCol+dCol]=correct;
            mPMap->mparr[newRow][newCol]=target;
        }
        else
        {
            return;
        }
    }
    //否则移动
    mRole->Move(dRow,dCol);
}
void Widget::keyPressEvent(QKeyEvent* event)

{
    switch(event->key())
    {
    case Qt::Key_W:
    case Qt::Key_Up:
    {
        //逻辑碰撞检测函数
        Collision(-1,0);
        break;
    }
    case Qt::Key_S:
    case Qt::Key_Down:
    {
        //逻辑碰撞检测函数
        Collision(1,0);
            break;
    }
    case Qt::Key_A:
    case Qt::Key_Left:
    {
        //逻辑碰撞检测函数
        Collision(0,-1);
            break;
    }
    case Qt::Key_D:
    case Qt::Key_Right:
    {
        //逻辑碰撞检测函数
        Collision(0,1);
            break;
    }

    }
    mPMap->win();
}
//鼠标事件函数
void Widget::mouseDoubleClickEvent(QMouseEvent*event)
{
    if(event->button()==Qt::LeftButton)
        Collision(0,-1);
    else if(event->button()==Qt::RightButton)
        Collision(0,1);
    mPMap->win();

}
void Widget::wheelEvent(QWheelEvent *event)
{
    if(event->angleDelta().y()>0)
        Collision(-1,0);
    else if(event->angleDelta().y()<0)
        Collision(1,0);
    mPMap->win();
}
//关卡选择函数
void Widget::startgame(int x)
{
    QFile f0("./Map/lv0.txt");
    QFile f1("./Map/lv1.txt");
    QFile f2("./Map/lv2.txt");
    QFile f3("./Map/lv3.txt");
    QFile f4("./Map/shell.txt");
    if(x==1)
    {
    mPMap->Inital(f1.fileName());
    mmedia->setSource(QUrl("qrc:/media/m1.mp3"));
    }
    else if(x==2)
    {
        mPMap->Inital(f2.fileName());
        mmedia->setSource(QUrl("qrc:/media/m2.mp3"));
    }
    else if(x==0)
    {
        mPMap->Inital(f0.fileName());
        mmedia->setSource(QUrl("qrc:/media/m0.mp3"));
    }
    else if(x==5)
    {
        QMessageBox::information(nullptr,"彩蛋","你太仔细了！这是隐藏地图，可千万不要告诉别人！");
        mmedia->setSource(QUrl("qrc:/media/m5.mp3"));
        mPMap->Inital(f4.fileName());
        //待定的彩蛋
    }else if(x==3)
    {

        mPMap->Inital(f3.fileName());
        mmedia->setSource(QUrl("qrc:/media/m3.mp3"));
    }
    else if(x==4)
    {
        QString fileName=QFileDialog::getOpenFileName(this,"打开地图","./","*.txt");
        mmedia->setSource(QUrl("qrc:/media/m4.mp3"));
        mPMap->Inital(fileName);
    }
}