gboolean on_mouse_click(GtkWidget *widget,GdkEventButton *event,gpointer data)//GtkEventButton对应鼠标按键事件，结构成员event->button等于1对应按下鼠标左键，等于3对应按下鼠标右键。
{
gint index;
gint row,col;
gchar buf[4];
vbox3 = gtk_vbox_new(FALSE,0);
gtk_box_pack_start(GTK_BOX(vbox3),s_image,FALSE,FALSE,0);
if(time_out_tag==0)
{
time_out_tag = g_timeout_add(1000,(GSourceFunc)tick,NULL);
}
if(game_over == TRUE)
return TRUE;
index = (gint)data;
switch(event->button)
{
case 1:
row = index/width;
col = index%width;
open_block(col,row);//鼠标左键按一下，表示打开一个方块，调用open_block()处理。
break;
case 2:
break;
case 3:
if(map[index].opened == TRUE)
break;
if(map[index].marked != TRUE)
{
map[index].marked = TRUE;
gtk_button_set_label(GTK_BUTTON(widget),"@");//按下鼠标右键，表示标记本方块是地雷，直接在方块上画个“@”符号。
marked_count++;
}
else
{
map[index].marked = FALSE;
gtk_button_set_label(GTK_BUTTON(widget),"");
marked_count--;
}
g_snprintf(buf,4,"%d",MAX(0,mines-marked_count));
gtk_label_set_text(GTK_LABEL(mine_label),buf);
}
gtk_toggle_button_set_mode(GTK_TOGGLE_BUTTON(map[index].button),TRUE);
return TRUE;
}
void
Block::fetch (unsigned char *buffer)
{
int fd;
int block_size;
if (!buffer)
die ("fetch_block_data: unallocated buffer\n");
set_buffer (buffer);
fd = open_block (name);
block_size = file_size (fd);
if (block_size != size) {
set_corrupted ();
}
read (fd, buffer, size);
close (fd);
}
//打开某一个格子对应的函数
void open_block(gint x,gint y)
{
gint index;
GtkWidget *button;
index = x+y*width;
if(map[index].marked == TRUE)
return;//防止某家打开已标记的盒子
button = map[index].button;
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(button),TRUE);//将状态改为按下
if(map[index].opened == TRUE)
return;//防止打开已经打开的盒子
map[index].opened = TRUE;//打开盒子
if(map[index].mine == TRUE)//如果此盒子下有雷
{
gtk_button_set_label(GTK_BUTTON(button),"*");
gameover(FALSE);//踩到地雷游戏结束
return;
}
if(map[index].count > 0)//若周围有雷
{
gchar buf[2];
g_snprintf(buf,2,"%d",map[index].count);
gtk_button_set_label(GTK_BUTTON(button),buf);
}
opened_count++;//增加一个已掀开的格子数
if(opened_count + mines == width * height)//获胜的标志
{
gameover(TRUE);
return;
}
if(map[index].count == 0)//若周围没有雷则掀开周围的格子
{
if(y > 0)
{
if(x > 0)
open_block(x-1,y-1);
open_block(x,y-1);
if(x < width-1)
open_block(x+1,y-1);
}
if(x > 0)
open_block(x-1,y);
if(x < width-1)
open_block(x+1,y);
if(y < height-1)
{
if(x > 0)
open_block(x-1,y+1);
open_block(x,y+1);
if(x < width-1)
open_block(x+1,y+1);
}
}
}