C语言写的俄罗斯方块程序(2)

pY = curBlock.y + j + dy;
if(tempY>(BoardHeight-1)) return false; /* y is only checked lower bound, maybe negative!!!! */
/* the cell already filled, we must check Y's upper bound before check cell ! */
if(tempY>=0 && Board[tempX][tempY][0]) return false;
}
}
}
return true;
}

/* judge if the block can rotate */
int CanRotate()
{
int i,j,tempX,tempY;
/* update buffer */
memcpy(BufferCells, curBlock.c, 16);
RotateCells(BufferCells,curBlock.size);
for(i=0;i<curBlock.size;i++)
{
for(j=0;j<curBlock.size;j++)
{
if(BufferCells[i][j])
{
tempX=curBlock.x+i;
tempY=curBlock.y+j;
if(tempX<0 || tempX>(BoardWidth-1))
return false;
if(tempY>(BoardHeight-1))
return false;
if(tempY>=0 && Board[tempX][tempY][0])
return false;
}
}
}
return true;
}

/* draw the block */
void _INNER_HELPER DrawBlock(Block *block,int bdLeft,int bdTop,int cellSize)
{
int i,j;
setfillstyle(SOLID_FILL,block->color);
for(i=0;i<block->size;i++)
{
for(j=0;j<block->size;j++)
{
if(block->c[i][j] && (block->y+j)>=0)
{
floodfill(
bdLeft+cellSize*(i+block->x)+cellSize/2,
bdTop+cellSize*(j+block->y)+cellSize/2,
BorderColor);
}
}
}
}

/* Rotate the block, if success, return true */
int RotateBlock(Block *block)
{
char temp,i,j;
int b_success;
if(curBlock.size==2)
return;
if(( b_success=CanRotate()))
{
EraseBlock(block,BoardLeft,BoardTop,CellSize);
memcpy(curBlock.c,BufferCells,16);
DrawBlock(block,BoardLeft,BoardTop,CellSize);
}
return b_success;
}


/* erase a block, only fill the filled cell with background color */
void _INNER_HELPER EraseBlock(Block *block,int bdLeft,int bdTop,int cellSize)
{
int i,j;
setfillstyle(SOLID_FILL,BkGndColor);
for(i=0;i<block->size;i++)
{
for(j=0;j<block->size;j++)
{
if(block->c[i][j] && (block->y+j>=0))
{
floodfill(
bdLeft+cellSize*(i+block->x)+cellSize/2,
bdTop+cellSize*(j+block->y)+cellSize/2,
BorderColor);
}
}
}
}

/* move by the direction if can, donothing if cannot
* return value: true - success, false - cannot move toward this direction
*/
int MoveBlock(Block *block,int dx,int dy)
{
int b_canmove=CanMove(dx
,dy);
if(b_canmove)
{
EraseBlock(block,BoardLeft,BoardTop,CellSize);
curBlock.x+=dx;
curBlock.y+=dy;
DrawBlock(block,BoardLeft,BoardTop,Ce

llSize);
}
return b_canmove;
}

/* drop the block to the bottom! */
int DropBlock(Block *block)
{
EraseBlock(block,BoardLeft,BoardTop,CellSize);
while(CanMove(0,1))
{
curBlock.y++;
}
DrawBlock(block,BoardLeft,BoardTop,CellSize);
return 0;/* return value is assign to the block's alive */
}


/* init the graphics mode, draw the board grid */
void InitGame()
{
int i,j,gdriver=DETECT,gmode;
struct time sysTime;
/* draw board cells */
memset(Board,0,BoardWidth*BoardHeight*2);
memset(nextBlock.c,0,16);
strcpy(info_help,"P: Pause Game. --by hoodlum1980");
initgraph(&gdriver,&gmode,"c:\\tc\\");
setcolor(BorderColor);
for(i=0;i<=BoardWidth;i++)
{
line(BoardLeft+i*CellSize, BoardTop, BoardLeft+i*CellSize, BoardTop+ BoardHeight*CellSize);
}
for(i=0;i<=BoardHeight;i++)
{
line(BoardLeft, BoardTop+i*CellSize, BoardLeft+BoardWidth*CellSize, BoardTop+ i*CellSize);
}
/* draw board outer border rect */
rectangle(BoardLeft-CellSize/4, BoardTop-CellSize/4,
BoardLeft+BoardWidth*CellSize+CellSize/4,
BoardTop+BoardHeight*CellSize+CellSize/4);

/* draw next block grids */
for(i=0;i<=4;i++)
{
line(NBBoardLeft+i*NBCellSize, NBBoardTop, NBBoardLeft+i*NBCellSize, NBBoardTop+4*NBCellSize);
line(NBBoardLeft, NBBoardTop+i*NBCellSize, NBBoardLeft+4*NBCellSize, NBBoardTop+ i*NBCellSize);
}

/* draw score rect */
rectangle(ScoreBoardLeft,ScoreBoardTop,ScoreBoardLeft+ScoreBoardWidth,ScoreBoardTop+ScoreBoardHeight);
DisplayScore();

/* set new seed! */
gettime(&sysTime);
srand(sysTime.ti_hour*3600+sysTime.ti_min*60+sysTime.ti_sec);

GenerateBlock(&nextBlock);
NextBlock(); /* create first block */
setcolor(DARKGRAY);
outtextxy(InfoLeft,InfoTop+20,"Up -rotate Space-drop");
outtextxy(InfoLeft,InfoTop+35,"Left-left Right-right");
outtextxy(InfoLeft,InfoTop+50,"Esc -exit");
DisplayInfo(info_help);
}

/* set the isFilled and fillcolor data to the board */
void _INNER_HELPER FillBoardData()
{
int i,j;
for(i=0;i<curBlock.size;i++)
{
for(j=0;j<curBlock.size;j++)
{
if(curBlock.c[i][j] && (curBlock.y+j)>=0)
{
Board[curBlock.x+i][curBlock.y+j][0]=1;
Board[curBlock.x+i][curBlock.y+j][1]=curBlock.color;
}
}
}
}

/* draw one line of the board */
void _INNER_HELPER PaintBoard()
{
int i,j,fillcolor;
for(j=max((TopLine-4),0);j<BoardHeight;j++)
{
for(i=0;i<BoardWidth;i++)
{
fillcolor=Board[i][j][0]? Board[i][j][1]:BkGndColor;
setfillstyle(SOLID_FIL …… 此处隐藏：4334字，全部文档内容请下载后查看。喜欢就下载吧 ……