Fixed shocker not activating.
Fixed shocker not activating.

@FatalEagle, @Xyene, Please note that exec_time is accessed from another thread, and whatever you do, make sure the member is updated live.

buhe/judge,buhe/judge,buhe/judge,buhe/judge,DMOJ/judge,DMOJ/judge,buhe/judge,DMOJ/judge,buhe/judge