代码虽小，五脏俱全。
之前写了一个90行版本的(90行版本)，需要.h和main.cpp两个文件。现在用一个文件来实现了。
由于没有.h文件了，“借”用了一个Qt中原生的SLOT来响应timer事件
这个版本采用位运算来判定方块的合法性，使得代码更精简
P.S. 由于在ubuntu和windows下mono格式的颜色是反的, ubuntu下运行看起来不太习惯
#include <QtGui>
unsigned int p1 = 0, p2 = 0, score = 0;
#define EX(x) ((((x)&0xf000ull)>>12)|(((x)&0xf00ull)<<8)|(((x)&0xf0ull)<<28)|(((x)&0xfull)<<48))
quint64 pats[7*4] = {
EX(0x0660),EX(0x0660),EX(0x0660),EX(0x0660), EX(0x4460),EX(0x0740),EX(0x6220),EX(0x02e0),
EX(0x2260),EX(0x0470),EX(0x6440),EX(0x0e20), EX(0x0630),EX(0x2640),EX(0x0630),EX(0x2640),
EX(0x0360),EX(0x4620),EX(0x0360),EX(0x4620), EX(0x0720),EX(0x2620),EX(0x0270),EX(0x2320),
EX(0x4444),EX(0x0f00),EX(0x4444),EX(0x0f00),
};
quint16 map[28] = {0xffff,0xffff,0xffff,0xffff};
struct MainWindow : public QMainWindow {
MainWindow(QWidget *parent = 0) : QMainWindow(parent),timer(new QTimer(this)){
setGeometry(400,200,250,250);
connect(timer, SIGNAL(timeout()), this, SLOT(raise()));
}
virtual bool event ( QEvent * e ){
if(e->type() == QEvent::ZOrderChange)keyPressEvent(0);
return QMainWindow::event(e);
}
int blockDrop(bool real = true){
if(real)*(quint64*)&map[curpos.y()] |= (pats[p1%28]<<curpos.x());
for(int i=0;i<4 && real; i++)
if(map[i+curpos.y()] == 0xffff){
memmove(&map[5],&map[4], (i+curpos.y() - 4)*2);
map[4] = ~0x1ff8;
score++;
}
timer->setInterval(score<450 ? 500-(score/50)*50 : 50);
p1 = p2;
curpos = QPoint(6,0);
while(!isValid(curpos.x(),curpos.y()) && curpos.y()<6)curpos.ry()++;
if(curpos.y()>=6) timer->stop();
return p2 = qrand();
}
void paintEvent(QPaintEvent *){
QPainter painter(this);
painter.drawImage(5,5,QImage((uchar*)map,16,28,2,QImage::Format(2)).scaled(160,280),28,38,104,204);
QImage img = QImage((uchar*)&pats[p1%28],4,4,2,QImage::Format(2)).convertToFormat(QImage::Format(3));
painter.drawImage(curpos.x()*10-23,curpos.y()*10-33,(img.setColor(0,0),img.scaled(40,40)));
painter.drawImage(130,30,QImage((uchar*)&pats[p2%28],4,4,2,QImage::Format(2)).scaled(40,40));
painter.drawText(130,20,QString("score:%1").arg(score));
if(!timer->isActive())painter.drawText(130,85,QString("Game over"));
painter.drawText(130,100,80,140,0,"P-Restart\nW-Rotate\nA-Left\nD-Right\nS-Down\nSpace-Drop");