kmahjongg.cpp

四川麻将程序代码

	a=Game.shadowHeight(e,y,x-2);
	b=Game.shadowHeight(e,y-1,x-2);
	if (a != 0 || b != 0)
	   l = (a>b) ? a : b;
	a=Game.shadowHeight(e,y-2,x);
	b=Game.shadowHeight(e,y-2,x-1);
	if (a != 0 || b != 0)
	   t = (a>b) ? a : b;

	c = Game.shadowHeight(e, y-2, x-2);
}

// draw a triangular shadow from the top right to the bottom left.
// one such shadow is a right hand edge of a shadow line.
// if a second shadow botton left to top right is rendered over it
// then the shadow becomes a box (ie in the middle of the run)

void BoardWidget::shadowTopLeft(int depth, int sx, int sy, int rx, int ry, QPixmap *src, bool flag) {
	if (depth) {
		int shadowPixels= (depth+1) * theTiles.shadowSize();
		int xOffset=theTiles.qWidth()-shadowPixels;
	    	for (int p=0; p<shadowPixels; p++) {	
             	    bitBlt( &backBuffer,
			    sx+xOffset,	sy+p,	
                    	    src,
			    rx+xOffset,	ry+p,
			    shadowPixels-p,
			    1, CopyROP );
		}
		// Now aafter rendering the triangle, fill in the rest of
		// the quater width
		if (flag && ((theTiles.qWidth() - shadowPixels) > 0))
             	    bitBlt( &backBuffer,
			    sx,	sy,	
                    	    src,
			    rx,	ry,
			    theTiles.qWidth() - shadowPixels,
			    shadowPixels, CopyROP );
	}
}

// Second triangular shadow generator see above
void BoardWidget::shadowBotRight(int depth, int sx, int sy, int rx, int ry, QPixmap *src, bool flag) {
	if (depth) {
		int shadowPixels= (depth+1) * theTiles.shadowSize();
		int xOffset=theTiles.qWidth();
	    	for (int p=0; p<shadowPixels; p++) {	
             	    bitBlt( &backBuffer,
			    sx+xOffset-p, 	/* step to shadow right start */
			    sy+p,		/* down for each line */
                    	    src,
			    rx+xOffset-p,	/* step to shadow right start */
			    ry+p,
			    p, 			/* increace width each line down */
			    1, CopyROP );
		}
		if (flag && ((theTiles.qHeight() - shadowPixels) >0))
             	    bitBlt( &backBuffer,
			    sx+xOffset-shadowPixels,	
			    sy+shadowPixels,	
                    	    src,
			    rx+xOffset-shadowPixels,
			    ry+shadowPixels,
			    shadowPixels,
			    theTiles.qHeight()-shadowPixels, CopyROP );

	}
}




void BoardWidget::shadowArea(int z, int y, int x, int sx, int sy,int rx, int ry, QPixmap *src)
{
	// quick check to see if we are obscured
	if (z < BoardLayout::depth-1) 	{
	    if ((x >= 0) && (y<BoardLayout::height)) {
		if (Game.Mask[z+1][y][x] && Game.Board[z+1][y][x]) {
			return;
		}
	    }
	}




	// offset to pass tile depth indicator
	sx+=theTiles.shadowSize();
	rx+=theTiles.shadowSize();
	


	// We shadow the top right hand edge of the tile with a
	// triangular border. If the top shadow covers it all
	// well and good, otherwise if its smaller, part of the
	// triangle will show through.

	shadowTopLeft(Game.shadowHeight(z+1, y-1, x), sx, sy, rx,ry,src, true);
	shadowBotRight(Game.shadowHeight(z+1, y, x+1), sx, sy, rx, ry, src, true);
	shadowTopLeft(Game.shadowHeight(z+1, y-1, x+1), sx, sy, rx,ry,src, false);
	shadowBotRight(Game.shadowHeight(z+1, y-1, x+1), sx, sy, rx, ry, src, false);

	return;

}

// ---------------------------------------------------------
void BoardWidget::paintEvent( QPaintEvent* pa )
{
    QPixmap  *back;

    int xx = pa->rect().left();
    int xheight = pa->rect().height();
    int xwidth  = pa->rect().width();


    if (gamePaused) {
        // If the game is paused, then blank out the board.
        // We tolerate no cheats around here folks..
        bitBlt( this, xx, pa->rect().top(),
                theBackground.getBackground(), xx,
                pa->rect().top(), xwidth, xheight, CopyROP );
	return;
    }

    // if the repaint is because of a window redraw after a move
    // or a menu roll up, then just blit in the last rendered image
    if (!updateBackBuffer) {
    	bitBlt(this, xx,pa->rect().top(),
		&backBuffer, xx, pa->rect().top(), xwidth, xheight, CopyROP);
	return;
    }

    // update the complete drawArea

    back = theBackground.getBackground();


    backBuffer.resize(back->width(), back->height());



    // erase out with the background
    bitBlt( &backBuffer, xx, pa->rect().top(),
                theBackground.getBackground(), xx,pa->rect().top(), xwidth, xheight, CopyROP );

    // initial offset on the screen of tile 0,0
    int xOffset = theTiles.width()/2;
    int yOffset = theTiles.height()/2;
    //short tile = 0;

    // shadow the background first
    if (preferences.showShadows()) {
        for (int by=0; by <BoardLayout::height+1; by++)
	    for (int bx=-1; bx < BoardLayout::width+1; bx++)
 	        shadowArea(-1, by, bx,
			bx*theTiles.qWidth()+xOffset-theTiles.shadowSize(), 	
			by*theTiles.qHeight()+yOffset+theTiles.shadowSize(),
			bx*theTiles.qWidth()+xOffset-theTiles.shadowSize(), 	
			by*theTiles.qHeight()+yOffset+theTiles.shadowSize(),
			theBackground.getShadowBackground());
    }




    // we iterate over the depth stacking order. Each sucessive level is
    // drawn one indent up and to the right. The indent is the width
    // of the 3d relief on the tile left (tile shadow width)
    for (int z=0; z<BoardLayout::depth; z++) {
        // we draw down the board so the tile below over rights our border
        for (int y = 0; y < BoardLayout::height; y++) {
            // drawing right to left to prevent border overwrite
            for (int x=BoardLayout::width-1; x>=0; x--) {
                int sx = x*(theTiles.qWidth()  )+xOffset;
                int sy = y*(theTiles.qHeight()  )+yOffset;



		// skip if no tile to display
		if (!Game.tilePresent(z,y,x))
			continue;

                QPixmap *t;
		QPixmap *s;
		if (Game.hilighted[z][y][x]) {
		   t= theTiles.selectedPixmaps(
				Game.Board[z][y][x]-TILE_OFFSET);
		   s= theTiles.selectedShadowPixmaps(
				Game.Board[z][y][x]-TILE_OFFSET);
		} else {
		   t= theTiles.unselectedPixmaps(
				Game.Board[z][y][x]-TILE_OFFSET);
		   s= theTiles.unselectedShadowPixmaps(
				Game.Board[z][y][x]-TILE_OFFSET);
                }

                // Only one compilcation. Since we render top to bottom , left
                // to right situations arise where...:
                // there exists a tile one q height above and to the left
                // in this situation we would draw our top left border over it
                // we simply split the tile draw so the top half is drawn
                // minus border

                if (x > 1 && y > 0 && Game.tilePresent(z, y-1, x-2)){
                    bitBlt( &backBuffer,
			    sx+theTiles.shadowSize(), sy,
                            t, theTiles.shadowSize() ,0,
		            t->width()-theTiles.shadowSize(),
		  	    t->height()/2, CopyROP );
                    bitBlt( &backBuffer, sx, sy+t->height()/2,
                        t, 0,t->height()/2,t->width(),t->height()/2,CopyROP);
                } else {

                bitBlt( &backBuffer, sx, sy,
                    t, 0,0, t->width(), t->height(), CopyROP );
                }

		
		if (preferences.showShadows() && z<BoardLayout::depth - 1) {
		    for (int xp = 0; xp <= 1; xp++)  {
			for (int yp=0; yp <= 1; yp++) {
				shadowArea(z, y+yp, x+xp,
					sx+(xp*theTiles.qWidth()),
					sy+(yp*theTiles.qHeight()),
					xp*theTiles.qWidth(),
					yp*theTiles.qHeight(),
					s);
			}
		    }

		}



            }
        }
        xOffset +=theTiles.shadowSize();
        yOffset -=theTiles.shadowSize();
    }





    // Now we add the list of cancelled tiles

    // we start blitting as usuall right to left, top to bottom, first
    // we calculate the start pos of the first tile, allowing space for
    // the upwards at rightwards creep when stacking in 3d
    unsigned short xPos = backBuffer.width()-(3*theTiles.shadowSize())-theTiles.width();
    unsigned short yPos = (3*theTiles.shadowSize());

    for (int pos=0; pos < 9; pos++) {
	int last = 0;
	int tile=0;
	// dragon?
	if (pos >= 0 && pos < 3) {
		last = removedDragon[pos];
		tile = TILE_DRAGON+pos;
	} else {
	    //Wind?
	    if (pos >= 3 && pos < 7) {
	        last = removedWind[pos-3];
		tile = TILE_WIND+pos-3;
	    } else {
		if (pos == 7) {
		    for (int t=0; t<4;t++) {
		        if (removedFlower[t]) {
			    last++;
			    tile=TILE_FLOWER+t;
			}
		    }			
		} else {
		    for (int t=0; t<4;t++) {
		        if (removedSeason[t]) {
			    last++;
			    tile=TILE_SEASON+t;
			}
		    }
		}
	    }
	}

	    stackTiles(tile, last, xPos, yPos);
	    stackTiles(TILE_ROD+pos, removedRod[pos],
		xPos - (1*(theTiles.width() - theTiles.shadowSize())) , yPos);
	    stackTiles(TILE_BAMBOO+pos, removedBamboo[pos],
		xPos - (2*(theTiles.width() - theTiles.shadowSize())) , yPos);
	    stackTiles(TILE_CHARACTER+pos, removedCharacter[pos],
		xPos - (3*(theTiles.width() - theTiles.shadowSize())) , yPos);
	


	yPos += theTiles.height()-theTiles.shadowSize();
    }


    updateBackBuffer=false;
    bitBlt(this, xx,pa->rect().top(), &backBuffer, xx, pa->rect().top(), xwidth, xheight, CopyROP);


}

void BoardWidget::stackTiles(unsigned char t, unsigned short h, unsigned short x,unsigned  short y)
{

    int ss = theTiles.shadowSize();
    QPainter p(&backBuffer);
    QPen line;
    p.setBackgroundMode(OpaqueMode);
    p.setBackgroundColor(black);




    line.setWidth(1);	
    line.setColor(white);	
    p.setPen(line);
    int x2 = x+theTiles.width()-ss-1;
    int y2 = y+theTiles.height()-1;
    p.drawLine(x, y+ss, x2, y+ss);
    p.drawLine(x, y+ss, x, y2);
    p.drawLine(x2, y+ss, x2, y2);
    p.drawLine(x+1, y2, x2, y2);

   // p.fillRect(x+1, y+ss+1, theTiles.width()-ss-2, theTiles.height()-ss-2, QBrush(lightGray));

    for (unsigned short pos=0; pos < h; pos++) {
       QPixmap *p = theTiles.unselectedPixmaps(t-TILE_OFFSET);
       bitBlt( &backBuffer, x+(pos*ss), y-(pos*ss),
                    p, 0,0, p->width(), p->height(), CopyROP );  	
    }

}


void BoardWidget::pause() {
	gamePaused = !gamePaused;
	drawBoard(true);
}
// ---------------------------------------------------------
int BoardWidget::undoMove()
{
    cancelUserSelectedTiles();

    if( Game.TileNum < Game.MaxTileNum )
    {
	
        clearRemovedTilePair(Game.MoveList[Game.TileNum], Game.MoveList[Game.TileNum+1]);
        putTile( Game.MoveList[Game.TileNum], false );
        Game.TileNum++;
        putTile( Game.MoveList[Game.TileNum] );
        Game.TileNum++;
        drawTileNumber();
        setStatusText( i18n("Undo operation done successfully.") );
	return 1;
    }
    else {
        setStatusText(i18n("What do you want to undo? You have done nothing!"));
	return 0;
	}
}

// ---------------------------------------------------------
void BoardWidget::helpMove()
{
    cancelUserSelectedTiles();
    stopMatchAnimation();

    if( findMove( TimerPos1, TimerPos2 ) )
    {
		cheatsUsed++;
        iTimerStep = 1;
        helpMoveTimeout();
    }
    else
        setStatusText( i18n("Sorry, you have lost the game.") );
}
// ---------------------------------------------------------
void BoardWidget::helpMoveTimeout()
{
    if( iTimerStep & 1 )
    {
        hilightTile( TimerPos1, true, false );
        hilightTile( TimerPos2, true );
    }
    else
    {
        hilightTile( TimerPos1, false, false );
        hilightTile( TimerPos2, false );
    }
    // restart timer
    if( iTimerStep++ < 8 )
        QTimer::singleShot( ANIMSPEED, this, SLOT( helpMoveTimeout() ) );
}

// ---------------------------------------------------------
void BoardWidget::startDemoMode()
{
    cancelUserSelectedTiles();
    stopMatchAnimation();
    calculateNewGame();

    if( TimerState == Stop )
    {
        TimerState = Demo;
        iTimerStep = 0;
        emit demoModeChanged( true );
        setStatusText( i18n("Demo mode. Click mousebutton to stop.") );
        demoMoveTimeout();
    }
}
// ---------------------------------------------------------
void BoardWidget::stopDemoMode()
{
    TimerState = Stop;    // stop demo
    calculateNewGame();
    setStatusText( i18n("Now it's you again.") );
    emit demoModeChanged( false );
    emit gameCalculated();
}
// ---------------------------------------------------------
void BoardWidget::demoMoveTimeout()
{
    switch( iTimerStep++ % 6 )
    {
        // at firts, find new matching tiles
        case 0:
            if( ! findMove( TimerPos1, TimerPos2 ) )
	    {
                // if computer has won
	        if( Game.TileNum == 0 )
                {
                    animateMoveList();
                }		
                // else computer has lost
                else
                {
                    setStatusText( i18n("Your computer has lost the game.") );
                    while( Game.TileNum < Game.MaxTileNum )
                    {
                        putTile( Game.MoveList[Game.TileNum], false );
                        Game.TileNum++;
                        putTile( Game.MoveList[Game.TileNum] );
                        Game.TileNum++;
                        drawTileNumber();
                    }
                }
                TimerState = Stop;
                startDemoMode();
                return;
            }
            break;
	// hilight matching tiles two times
        case 1:
        case 3:
            if( TimerState == Demo )
	    {
                hilightTile( TimerPos1, true, false );
                hilightTile( TimerPos2, true );
            }
            break;
	
        case 2: