/**
* Validate table check if it has empty or full column and rows.
*/
bool Table::validate( ) {
int i, x;
// must be invalidated to validate
if (!validated) {
i = x = 0;
// check rows
while (i < height && !x) {
x = lines[i]->empty( ) | lines[i]->full( );
i++;
}
i = 0;
// check columns
while (i < width && !x) {
x = emptyColumn(i) | fullColumn(i);
i++;
}
// validate
if (!x)
validated = true;
}
return validated;
}
/**
* Set value in row and column.
*/
int Table::setValue(int value, int row, int col) {
int pos;
int ret = -1;
if (validated && row >= 0 && row < height) {
// was the value added
if (!lines[row]->setValue(value, col)) {
// check if not violates table
if ((value ? fullRow(row) : emptyRow(row)) ||
(value ? fullColumn(col) : emptyColumn(col)) ||
duplicatedRow(row, &pos))
lines[row]->setValue((value ? 0 : 1), col);
else
ret = 0; // no error
}
}
return ret;
}
void gameStart(int mode)
{
bool success;//是否下落成功；若失败，则说明沉底
int i, j, k, t = 0;
int cmd = 0;
int timeLeft[TOTAL_PLAYER+1] = {0, 1000, 1000};
Block tpBlk[TOTAL_PLAYER+1];
gameInit();//初始化游戏
while(1)
{
for(i = 1; i <= TOTAL_PLAYER; i++)
{
t++;//计时器增加
setorigin(0, 0); //设置原点
recoverBk(0, g_player[i].preview.y + 4 * BLOCK_SIZE, 160, 30);
recoverBk(0, 480 - 30, 160, 30); //重绘预览区
printScore(t);//显示得分
drawStageLine();//绘制边界线
FlushBatchDraw();//执行绘图
if(g_player[i].dropped == true)
{
saveState(i, g_player[i].nowBlk);//保存方块的存在状态
if(mode == CLEAR && g_player[1+(i==1)].score >= 100)gameOver(i);
if(reachTop(i))
{
gameOver(i);
continue;
}//判断游戏结束
k = fullColumn(i);
if(k > 0)
{
g_player[i].score += k * k;
if(mode == NORMAL && g_player[i].score % 10 == 0)newColumn(1 + (i == 1));
}//计分与消行
tpBlk[i] = g_player[i].preBlk; //备份预览方块
g_player[i].nowBlk = preToNow(g_player[i].preBlk);//previewBlock变为player[1].nowBlk
g_player[i].preBlk = createBlk(); //产生新的预览方块
refreshBlk(i, tpBlk[i], g_player[i].preBlk, PREVIEW); //绘制新的previewBlock
g_player[i].dropped = false;
}
getCmd(&cmd);//获得命令
timeLeft[i] -= 10;
for (j = 1; j <= TOTAL_PLAYER; j++)
{
tpBlk[j] = g_player[j].nowBlk;
success = DispatchCommand(j, cmd);
if(success)refreshBlk(j, tpBlk[j], g_player[j].nowBlk);
else continue;
}//在一个玩家的循环中要同时处理两个玩家
if(timeLeft[i] <= 0)
{
if(mode == NORMAL)timeLeft[i] = INIT_DELAY - (int)(2.5 * g_player[1+(i==1)].score);
else timeLeft[i] = (int)(INIT_DELAY - (t / 1000.0)); //速度规则
if(timeLeft[i] < MIN_DELAY)timeLeft[i] = 3 * MIN_DELAY;
tpBlk[i] = g_player[i].nowBlk;
if(i == 1)
success = DispatchCommand(1, CMD_DOWN);
else
success = DispatchCommand(2, CMD_DOWN2);
if(success)refreshBlk(i, tpBlk[i], g_player[i].nowBlk);
}
}
}
getch();
closegraph();
}