俄罗斯方块小游戏QT编程

#include <time.h> #include <QMessageBox> #include <QDebug> #include <QPainter> #include <QKeyEvent> #include "widget.h" #include "ui_widget.h" //定义图案代码和边界 //田字 int item1[4][4]= { {0,0,0,0}, {0,1,1,0}, {0,1,1,0}, {0,0,0,0} }; //右L int item2[4][4]= { {0,1,0,0}, {0,1,0,0}, {0,1,1,0}, {0,0,0,0} }; //左L int item3[4][4]= { {0,0,1,0}, {0,0,1,0}, {0,1,1,0}, {0,0,0,0} }; //右S int item4[4][4]= { {0,1,0,0}, {0,1,1,0}, {0,0,1,0}, {0,0,0,0} }; //左S int item5[4][4]= { {0,0,1,0}, {0,1,1,0}, {0,1,0,0}, {0,0,0,0} }; //山形 int item6[4][4]= { {0,0,0,0}, {0,0,1,0}, {0,1,1,1}, {0,0,0,0} }; //长条 int item7[4][4]= { {0,0,1,0}, {0,0,1,0}, {0,0,1,0}, {0,0,1,0} }; //拷贝方块图案 inline void block_cpy(int dblock[4][4],int sblock[4][4]) { for(int i=0;i<4;i++) for(int j=0;j<4;j++) dblock[i][j]=sblock[i][j]; } Widget::Widget(QWidget *parent) : QWidget(parent), ui(new Ui::Widget) { ui->setupUi(this); //调整窗口尺寸布局 resize(AREA_COL*BLOCK_SIZE+MARGIN*4+4*BLOCK_SIZE,AREA_ROW*BLOCK_SIZE+MARGIN*2); //初始化游戏 InitGame(); } Widget::~Widget() { delete ui; } void Widget::paintEvent(QPaintEvent *event) { QPainter painter(this); //画游戏场景边框 painter.setBrush(QBrush(Qt::white,Qt::SolidPattern)); painter.drawRect(MARGIN,MARGIN,AREA_COL*BLOCK_SIZE,AREA_ROW*BLOCK_SIZE); //画方块预告 painter.setBrush(QBrush(Qt::blue,Qt::SolidPattern)); for(int i=0;i<4;i++) for(int j=0;j<4;j++) if(next_block[i][j]==1) painter.drawRect(MARGIN*3+AREA_COL*BLOCK_SIZE+j*BLOCK_SIZE,MARGIN+i*BLOCK_SIZE,BLOCK_SIZE,BLOCK_SIZE); //绘制得分 painter.setPen(Qt::black); painter.setFont(QFont("Arial",14)); painter.drawText(QRect(MARGIN*3+AREA_COL*BLOCK_SIZE,MARGIN*2+4*BLOCK_SIZE,BLOCK_SIZE*4,BLOCK_SIZE*4),Qt::AlignCenter,"score: "+QString::number(score)); //绘制下落方块和稳定方块,注意方块边线的颜色是根据setPen来的，默认黑色 for(int i=0;i<AREA_ROW;i++) for(int j=0;j<AREA_COL;j++) { //绘制活动方块 if(game_area[i][j]==1) { painter.setBrush(QBrush(Qt::red,Qt::SolidPattern)); painter.drawRect(j*BLOCK_SIZE+MARGIN,i*BLOCK_SIZE+MARGIN,BLOCK_SIZE,BLOCK_SIZE); } //绘制稳定方块 else if(game_area[i][j]==2) { painter.setBrush(QBrush(Qt::green,Qt::SolidPattern)); painter.drawRect(j*BLOCK_SIZE+MARGIN,i*BLOCK_SIZE+MARGIN,BLOCK_SIZE,BLOCK_SIZE); } } } void Widget::timerEvent(QTimerEvent *event) { //方块下落 if(event->timerId()==game_timer) BlockMove(DOWN); //刷新画面 if(event->timerId()==paint_timer) update(); } void Widget::keyPressEvent(QKeyEvent *event) { switch(event->key()) { case Qt::Key_Up: BlockMove(UP); break; case Qt::Key_Down: BlockMove(DOWN); break; case Qt::Key_Left: BlockMove(LEFT); break; case Qt::Key_Right: BlockMove(RIGHT); break; case Qt::Key_Space: BlockMove(SPACE); break; default: break; } } void Widget::CreateBlock(int block[4][4],int block_id) { switch (block_id) { case 0: block_cpy(block,item1); break; case 1: block_cpy(block,item2); break; case 2: block_cpy(block,item3); break; case 3: block_cpy(block,item4); break; case 4: block_cpy(block,item5); break; case 5: block_cpy(block,item6); break; case 6: block_cpy(block,item7); break; default: break; } } void Widget::GetBorder(int block[4][4],Border &border) { //计算上下左右边界 for(int i=0;i<4;i++) for(int j=0;j<4;j++) if(block[i][j]==1) { border.dbound=i; break; //直到计算到最后一行有1 } for(int i=3;i>=0;i--) for(int j=0;j<4;j++) if(block[i][j]==1) { border.ubound=i; break; } for(int j=0;j<4;j++) for(int i=0;i<4;i++) if(block[i][j]==1) { border.rbound=j; break; } for(int j=3;j>=0;j--) for(int i=0;i<4;i++) if(block[i][j]==1) { border.lbound=j; break; } // qDebug()<<cur_border.ubound<<cur_border.dbound<<cur_border.lbound<<cur_border.rbound; } void Widget::InitGame() { for(int i=0;i<AREA_ROW;i++) for(int j=0;j<AREA_COL;j++) game_area[i][j]=0; speed_ms=800; refresh_ms=30; //初始化随机数种子 srand(time(0)); //分数清0 score=0; //开始游戏 StartGame(); } void Widget::ResetBlock() { //产生当前方块 block_cpy(cur_block,next_block); GetBorder(cur_block,cur_border); //产生下一个方块 int block_id=rand()%7; CreateBlock(next_block,block_id); //设置初始方块坐标,以方块左上角为锚点 block_point start_point; start_point.pos_x=AREA_COL/2-2; start_point.pos_y=0; block_pos=start_point; } void Widget::StartGame() { game_timer=startTimer(speed_ms); //开启游戏timer paint_timer=startTimer(refresh_ms); //开启界面刷新timer //产生初始下一个方块 int block_id=rand()%7; CreateBlock(next_block,block_id); ResetBlock(); //产生方块 } void Widget::GameOver() { //游戏结束停止计时器 killTimer(game_timer); killTimer(paint_timer); QMessageBox::information(this,"failed","game over"); } void Widget::BlockRotate(int block[4][4]) { int temp_block[4][4]; for(int i=0;i<4;i++) for(int j=0;j<4;j++) temp_block[3-j][i]=block[i][j]; for(int i=0;i<4;i++) for(int j=0;j<4;j++) block[i][j]=temp_block[i][j]; } void Widget::ConvertStable(int x,int y) { for(int i=cur_border.ubound;i<=cur_border.dbound;i++) for(int j=cur_border.lbound;j<=cur_border.rbound;j++) if(cur_block[i][j]==1) game_area[y+i][x+j]=2; //x和y别搞反 } bool Widget::IsCollide(int x,int y,Direction dir) { //用拷贝的临时方块做判断 int temp_block[4][4]; block_cpy(temp_block,cur_block); Border temp_border; GetBorder(temp_block,temp_border); //先尝试按照某方向走一格 switch(dir) { case UP: BlockRotate(temp_block); GetBorder(temp_block,temp_border); //旋转后要重新计算边界 break; case DOWN: y+=1; break; case LEFT: x-=1; break; case RIGHT: x+=1; break; default: break; } for(int i=temp_border.ubound;i<=temp_border.dbound;i++) for(int j=temp_border.lbound;j<=temp_border.rbound;j++) if(game_area[y+i][x+j]==2&&temp_block[i][j]==1||x+temp_border.lbound<0||x+temp_border.rbound>AREA_COL-1) return true; return false; } void Widget::BlockMove(Direction dir) { switch (dir) { case UP: if(IsCollide(block_pos.pos_x,block_pos.pos_y,UP)) break; //逆时针旋转90度 BlockRotate(cur_block); //防止旋转后bug,i和j从0到4重新设置方块