private int check_connect_recurse(int x, int y, BlockControl.COLOR previous_color, int connect_count)
{
BlockIndex block_index;
do
{
// 如果已经和其他方块连结则忽略跳过
//
if (this.connect_status[x, y] == CONNECT_STATUS.CONNECTED)
{
break;
}
//
block_index.x = x;
block_index.y = y;
// 如果本次已经检测过则忽略跳过
bool is_checked = false;
for (int i = 0; i < connect_count; i++)
{
if (this.connect_block[i].Equals(block_index))
{
is_checked = true;
break;
}
}
if (is_checked)
{
break;
}
//
if (previous_color == BlockControl.COLOR.NONE)
{
// 开始的第一个
this.connect_block[0] = block_index;
connect_count = 1;
}
else
{
// 从第2个开始，检测是否和前一个方块颜色相同
if (this.blocks[x, y].color == previous_color)
{
this.connect_block[connect_count] = block_index;
connect_count++;
}
}
// 如果和前一个颜色相同，则继续检测旁边的方块
if (previous_color == BlockControl.COLOR.NONE || this.blocks[x, y].color == previous_color)
{
// 左
if (x > 0)
{
connect_count = this.check_connect_recurse(x - 1, y, this.blocks[x, y].color, connect_count);
}
// 右
if (x < BLOCK_NUM_X - 1)
{
connect_count = this.check_connect_recurse(x + 1, y, this.blocks[x, y].color, connect_count);
}
// 上
if (y > 0)
{
connect_count = this.check_connect_recurse(x, y - 1, this.blocks[x, y].color, connect_count);
}
// 下
if (y < BLOCK_NUM_Y - 1)
{
connect_count = this.check_connect_recurse(x, y + 1, this.blocks[x, y].color, connect_count);
}
// 为了让方块按对角线排列时消除
/*if(x > 0 && y > 0) {
*
* connect_count = this.check_connect_recurse(x - 1, y - 1, this.blocks[x, y].color, connect_count);
* }
* if(x > 0 && y < BLOCK_NUM_Y - 1) {
*
* connect_count = this.check_connect_recurse(x - 1, y + 1, this.blocks[x, y].color, connect_count);
* }
* if(x < BLOCK_NUM_X - 1 && y > 0) {
*
* connect_count = this.check_connect_recurse(x + 1, y - 1, this.blocks[x, y].color, connect_count);
* }
* if(x < BLOCK_NUM_X - 1 && y < BLOCK_NUM_Y - 1) {
*
* connect_count = this.check_connect_recurse(x + 1, y + 1, this.blocks[x, y].color, connect_count);
* }*/
}
} while(false);
return(connect_count);
}
private int check_connect_recurse(int x, int y, BlockControl.COLOR previous_color, int connect_count)
{
BlockIndex block_index;
do
{
// すでにほかのブロックと連結していたらスキップ.
//
if (this.connect_status[x, y] == CONNECT_STATUS.CONNECTED)
{
break;
}
//
block_index.x = x;
block_index.y = y;
// 今回すでにチェック済みならスキップ.
bool is_checked = false;
for (int i = 0; i < connect_count; i++)
{
if (this.connect_block[i].Equals(block_index))
{
is_checked = true;
break;
}
}
if (is_checked)
{
break;
}
//
if (previous_color == BlockControl.COLOR.NONE)
{
// 最初の一個目.
this.connect_block[0] = block_index;
connect_count = 1;
}
else
{
// ２個目以降は、前のブロックと同じ色かチェックする.
if (this.blocks[x, y].color == previous_color)
{
this.connect_block[connect_count] = block_index;
connect_count++;
}
}
// 同じ色が続いていたら、さらに隣もチェックする.
if (previous_color == BlockControl.COLOR.NONE || this.blocks[x, y].color == previous_color)
{
// 左.
if (x > 0)
{
connect_count = this.check_connect_recurse(x - 1, y, this.blocks[x, y].color, connect_count);
}
// 右.
if (x < BLOCK_NUM_X - 1)
{
connect_count = this.check_connect_recurse(x + 1, y, this.blocks[x, y].color, connect_count);
}
// 上.
if (y > 0)
{
connect_count = this.check_connect_recurse(x, y - 1, this.blocks[x, y].color, connect_count);
}
// 下.
if (y < BLOCK_NUM_Y - 1)
{
connect_count = this.check_connect_recurse(x, y + 1, this.blocks[x, y].color, connect_count);
}
// ナナメ方向に並んだ時だけ消えるように.
/*if(x > 0 && y > 0) {
*
* connect_count = this.check_connect_recurse(x - 1, y - 1, this.blocks[x, y].color, connect_count);
* }
* if(x > 0 && y < BLOCK_NUM_Y - 1) {
*
* connect_count = this.check_connect_recurse(x - 1, y + 1, this.blocks[x, y].color, connect_count);
* }
* if(x < BLOCK_NUM_X - 1 && y > 0) {
*
* connect_count = this.check_connect_recurse(x + 1, y - 1, this.blocks[x, y].color, connect_count);
* }
* if(x < BLOCK_NUM_X - 1 && y < BLOCK_NUM_Y - 1) {
*
* connect_count = this.check_connect_recurse(x + 1, y + 1, this.blocks[x, y].color, connect_count);
* }*/
}
} while(false);
return(connect_count);
}