Pasted

 -	shop	anti_bot_shop	-1,909:-1
 -	script	anti_bot_shop_main	-1,{
 	OnInit:
		.max_wrong_count = 3;
		.duration = 5;
		.shop_name$ = "anti_bot_shop";
 		setarray .item_list,
			501,
			502,
			503,
			504,
			505;
		.item_list_size = getarraysize( .item_list );
		.npc_name$ = strnpcinfo(3);
		npcshopdelitem .shop_name$,909;
		for ( .@i = 0; .@i < .item_list_size; .@i++ )
			npcshopadditem .shop_name$,.item_list[.@i],-1;
		end;
 	OnPCLoginEvent:
		mes "Welcome!";
		mes "Protecting the player's benefit, we have an anti-bot checking. Please finish it within "+.duration+" seconds.";
		mes "When "+.max_wrong_count+" attempts failed will sent you to jail.";
		next;
	OnRepeat:
		@wrong_count++;
		mes "attempt : "+@wrong_count+"/"+.max_wrong_count;
		deltimer .npc_name$+"::OnJail";
		addtimer ( .duration * 1000 ),.npc_name$+"::OnJail";
		@rand_itemid = .item_list[ rand( .item_list_size ) ];
		@rand_amount = rand( 1,100 );
		mes "Please buy "+@rand_amount+" "+getitemname( @rand_itemid )+".";
		npcshopattach .shop_name$,1;
		callshop .shop_name$,1;
		end;
 	OnBuyItem:
		if ( @bought_nameid[0] != @rand_itemid || @bought_quantity[0] != @rand_amount ) {
			mes "Wrong.";
			close2;
			if ( @wrong_count >= .max_wrong_count ) {
				doevent .npc_name$+"::OnJail";
			}
			else {
				doevent .npc_name$+"::OnRepeat";
			}
		}
		deltimer .npc_name$+"::OnJail";
		end;
 	OnJail:
		mes "Failed.";
		atcommand "@jail "+strcharinfo(0);
		end;
}