fix the bug that delayed tricks on dashboard is misplaced on uninstall

Signed-off-by: Takashiro <takashiro@qq.com>
Destroy objects though the program exits unexpectedly

Signed-off-by: Takashiro <takashiro@qq.com>
Remove a painter not in paint or paintEvent

Signed-off-by: Takashiro <takashiro@qq.com>
Make all the game rules children of Server

Signed-off-by: Takashiro <takashiro@qq.com>
Some modifications to apply the new usage of QThread

Signed-off-by: Takashiro <takashiro@qq.com>
Remove an unnecessary room

Signed-off-by: Takashiro <takashiro@qq.com>