俄罗斯方块QT源程序

#include <qpixmap.h> #include <qwidget.h> #include <qapp.h> #include <stdlib.h> #include "controller.h" CtrlBoard::CtrlBoard(QWidget *parent) : QFrame(parent) { setFrameStyle(QFrame::Panel | QFrame::Sunken); setFocusPolicy(QWidget::StrongFocus); isStarted = false; isPaused = false; clearBoard(); nextBlock.setRandomShape(); timer = new QTimer(this); connect(timer,SIGNAL(timeout()),this,SLOT(timeout())); } void CtrlBoard::setNextBlock(QLabel *label) { nextBlockLabel = label; } QSize CtrlBoard::sizeHint() const { return QSize(BoardWidth * 15 + frameWidth() * 2, BoardHeight * 15 + frameWidth() * 2); } QSize CtrlBoard::minimumSizeHint() const { return QSize(BoardWidth * 5 + frameWidth() * 2, BoardHeight * 5 + frameWidth() * 2); } void CtrlBoard::start() { if(isPaused || isStarted) return; isStarted = true; isWaitingAfterLine = false; score = 0; level = 1; clearBoard(); emit scoreChanged(score); emit levelChanged(level); newBlock(); timer->start(timeoutTime()); } void CtrlBoard::restart() { if(isStarted && !isPaused) timer->stop(); isStarted = true; isPaused = false; isWaitingAfterLine = false; score = 0; level = 1; emit scoreChanged(score); emit levelChanged(level); clearBoard(); nextBlock.setRandomShape(); newBlock(); timer->start(timeoutTime()); } void CtrlBoard::pause() { if(!isStarted) return; isPaused = !isPaused; if(isPaused){ timer->stop(); } else{ timer->start(timeoutTime()); } update(); } void CtrlBoard::paintEvent(QPaintEvent *event) { QFrame::paintEvent(event); QPainter painter(this); QRect rect = contentsRect(); int boardTop = rect.bottom() - BoardHeight*squareHeight(); for(int i = 0;i < BoardHeight;++i){ for(int j = 0;j < BoardWidth;++j){ BlockShape shape = shapeAt(j,BoardHeight - i - 1); if(shape != NoShape) drawSquare(painter,rect.left() + j * squareWidth(),boardTop + i * squareHeight(),shape); } } if(curBlock.shape() != NoShape){ for(int i = 0;i < 4;++i){ int x = curX + curBlock.x(i); int y = curY - curBlock.y(i); drawSquare(painter, rect.left() + x * squareWidth(), boardTop + (BoardHeight - y - 1) * squareHeight(), curBlock.shape()); } } } void CtrlBoard::keyPressEvent(QKeyEvent *event) { if(!isStarted || curBlock.shape() == NoShape){ QFrame::keyPressEvent(event); return; } if(!isPaused){ switch(event->key()){ case Qt::Key_1: pause(); break; case Qt::Key_2: dropBottom(); break; case Qt::Key_4: tryMove(curBlock,curX - 1,curY); break; case Qt::Key_5: droponeLine(); break; case Qt::Key_6: tryMove(curBlock,curX + 1,curY); break; case Qt::Key_7: tryMove(curBlock.turnToLeft(),curX,curY); break; case Qt::Key_9: tryMove(curBlock.turnToRight(),curX,curY); break; default: QFrame::keyPressEvent(event); } } else if(event->key() == Qt::Key_1) pause(); } void CtrlBoard::timeout() { if(isWaitingAfterLine){ timer->stop(); isWaitingAfterLine = false; newBlock(); timer->start(timeoutTime()); } else{ droponeLine(); } } int CtrlBoard::timeoutTime() { int time = 500; if(level <= 2) time = 400; else if(level <= 5) time = 300; else if(level <= 10) time = 200; else if(level <= 15) time = 100; else time = 80; return time; } void CtrlBoard::clearBoard() { for(int i = 0;i < BoardHeight * BoardWidth;++i) board[i] = NoShape; } void CtrlBoard::dropBottom() { int newY = curY; while(newY > 0){ if(!tryMove(curBlock,curX,newY - 1)) break; --newY; } blockDropped(); } void CtrlBoard::droponeLine() { if(!tryMove(curBlock,curX,curY - 1)) blockDropped(); } void CtrlBoard::blockDropped() { for(int i = 0;i < 4;++i){ int x = curX + curBlock.x(i); int y = curY - curBlock.y(i); shapeAt(x,y) = curBlock.shape(); } score += 1; emit scoreChanged(score); if(score - 100 * (level - 1) >= 100){ ++level; timer->stop(); timer->start(timeoutTime()); emit levelChanged(level); } clearFullLines(); if(!isWaitingAfterLine) newBlock(); } void CtrlBoard::clearFullLines() { int numFullLines = 0; for(int i = BoardHeight - 1;i >= 0;--i){ bool lineIsFull = true; for(int j = 0;j < BoardWidth;++j){ if(shapeAt(j,i) == NoShape){ lineIsFull = false; break; } } if(lineIsFull){ ++numFullLines; for(int k = i;k < BoardHeight - 1;++k){ for(int j = 0;j < BoardWidth;++j) shapeAt(j, k) = shapeAt(j,k + 1); } for(int j = 0;j < BoardWidth;++j) shapeAt(j,BoardHeight - 1) = NoShape; } } if(numFullLines > 0){ score += 10 * (2 * numFullLines + 1); emit scoreChanged(score); timer->start(500); isWaitingAfterLine = true; curBlock.setShape(NoShape); update(); } } void CtrlBoard::newBlock() { curBlock = nextBlock; nextBlock.setRandomShape(); showNextBlock(); curX = BoardWidth / 2 + 1; curY = BoardHeight - 1 + curBlock.minY(); if(!tryMove(curBlock,curX,curY)){ curBlock.setShape(NoShape); timer->stop(); isStarted = false; } } void CtrlBoard::showNextBlock() { if (!nextBlockLabel) return; int dx = nextBlock.maxX() - nextBlock.minX() + 1; int dy = nextBlock.maxY() - nextBlock.minY() + 1; QPixmap pixmap(dx * squareWidth(), dy * squareHeight()); QPainter painter(&pixmap); painter.fillRect(pixmap.rect(),nextBlockLabel->palette().brush(QPalette::Active,QColorGroup::Background)); for(int i = 0;i < 4;++i){ int x = nextBlock.x(i) - nextBlock.minX(); int y = nextBlock.y(i) - nextBlock.minY(); drawSquare(painter, x * squareWidth(), y * squareHeight(), nextBlock.shape()); } nextBlockLabel->setPixmap(pixmap); } bool CtrlBoard::tryMove(const Block &newBlock,int newX,int newY) { for(int i = 0;i < 4;++i){ int x = newX + newBlock.x(i); int y = newY - newBlock.y(i); if(x < 0 || x >= BoardWidth || y < 0 || y >= BoardHeight) return false; if(shapeAt(x, y) != NoShape) return false; } curBlock = newBlock; curX = newX; curY = newY; update(); return true; } void CtrlBoard::drawSquare(QPainter &painter,int x,int y,BlockShape shape) { static const QRgb colorTable[8] = { 0x000000, 0xCC6666, 0x66CC66, 0x6666CC, 0xCCCC66, 0xCC66CC, 0x66CCCC, 0xDAAA00 }; QColor color = colorTable[int(shape)]; painter.fillRect(x + 1,y + 1,squareWidth() - 2,squareHeight() - 2,color); painter.setPen(color.light()); painter.drawLine(x,y + squareHeight() - 1,x,y); painter.drawLine(x,y,x + squareWidth() - 1,y); painter.setPen(color.dark()); painter.drawLine(x + 1,y + squareHeight() - 1, x + squareWidth() - 1,y + squareHeight() - 1); painter.drawLine(x + squareWidth() - 1,y + squareHeight() - 1, x + squareWidth() - 1,y + 1); }