C++ DIFF_TICK函数代码示例

/**
 * Sends a message to a channel.
 *
 * @param chan The destination channel.
 * @param sd   The source character.
 * @param msg  The message to send.
 *
 * If no source character is specified, it'll send an anonymous message.
 */
void channel_send(struct channel_data *chan, struct map_session_data *sd, const char *msg)
{
	char message[150];
	nullpo_retv(chan);
	nullpo_retv(msg);

	if (sd && chan->msg_delay != 0
	 && DIFF_TICK(sd->hchsysch_tick + chan->msg_delay*1000, timer->gettick()) > 0
	 && !pc_has_permission(sd, PC_PERM_HCHSYS_ADMIN)) {
		clif->messagecolor_self(sd->fd, COLOR_RED, msg_sd(sd,1455));
		return;
	} else if (sd) {
		safesnprintf(message, 150, "[ #%s ] %s : %s", chan->name, sd->status.name, msg);
		clif->channel_msg(chan,sd,message);
		if (chan->type == HCS_TYPE_IRC)
			ircbot->relay(sd->status.name,msg);
		if (chan->msg_delay != 0)
			sd->hchsysch_tick = timer->gettick();
	} else {
		safesnprintf(message, 150, "[ #%s ] %s", chan->name, msg);
		clif->channel_msg2(chan, message);
		if (chan->type == HCS_TYPE_IRC)
			ircbot->relay(NULL, msg);
	}
}

/*==========================================
 * Pet Attack Skill [Skotlex]
 *------------------------------------------*/
int pet_attackskill(struct pet_data *pd, int target_id)
{
	struct block_list *bl;
	int inf;

	if (!battle_config.pet_status_support || !pd->a_skill || 
		(battle_config.pet_equip_required && !pd->pet.equip))
		return 0;

	if (DIFF_TICK(pd->ud.canact_tick, gettick()) > 0)
		return 0;
	
	if (rand()%100 < (pd->a_skill->rate +pd->pet.intimate*pd->a_skill->bonusrate/1000))
	{	//Skotlex: Use pet's skill 
		bl=map_id2bl(target_id);
		if(bl == NULL || pd->bl.m != bl->m || bl->prev == NULL || status_isdead(bl) ||
			!check_distance_bl(&pd->bl, bl, pd->db->range3))
			return 0;

		inf = skill_get_inf(pd->a_skill->id);
		if (inf & INF_GROUND_SKILL)
			unit_skilluse_pos(&pd->bl, bl->x, bl->y, pd->a_skill->id, pd->a_skill->lv);
		else	//Offensive self skill? Could be stuff like GX.
			unit_skilluse_id(&pd->bl,(inf&INF_SELF_SKILL?pd->bl.id:bl->id), pd->a_skill->id, pd->a_skill->lv);
		return 1; //Skill invoked.
	}
	return 0;
}

/*======================================
 *	CORE : Timer Heap
 *--------------------------------------
 */
static void push_timer_heap(int index)
{
	int i,h;

	if(timer_heap==NULL || timer_heap[0]+1>=timer_heap_max){
		int first = timer_heap==NULL;

		timer_heap_max += 256;
		timer_heap = realloc(timer_heap,sizeof(int)*timer_heap_max);
		if(timer_heap==NULL){
			printf("out of memory : push_timer_heap\n");
			exit(1);
		}
		if(first)
			timer_heap[0]=0;
	}

	timer_heap[0]++;

	for(h=timer_heap[0]-1,i=(h-1)/2;
		h>0 && DIFF_TICK(timer_data[index].tick , timer_data[timer_heap[i+1]].tick)<0;
		i=(h-1)/2) {
		timer_heap[h+1]=timer_heap[i+1],h=i;
	}
	timer_heap[h+1]=index;
}

int chrif_save_scdata(struct map_session_data *sd) { //parses the sc_data of the player and sends it to the char-server for saving. [Skotlex]

#ifdef ENABLE_SC_SAVING
	int i, count=0;
	unsigned int tick;
	struct status_change_data data;
	struct status_change *sc = &sd->sc;
	const struct TimerData *timer;

	chrif_check(-1);
	tick = gettick();
	
	WFIFOHEAD(char_fd, 14 + SC_MAX*sizeof(struct status_change_data));
	WFIFOW(char_fd,0) = 0x2b1c;
	WFIFOL(char_fd,4) = sd->status.account_id;
	WFIFOL(char_fd,8) = sd->status.char_id;
	
	for (i = 0; i < SC_MAX; i++) {
		if (!sc->data[i])
			continue;
		if (sc->data[i]->timer != INVALID_TIMER) {
			timer = get_timer(sc->data[i]->timer);
			if (timer == NULL || timer->func != status_change_timer || DIFF_TICK(timer->tick,tick) < 0)
				continue;
			data.tick = DIFF_TICK(timer->tick,tick); //Duration that is left before ending.
		} else
			data.tick = -1; //Infinite duration
		data.type = i;
		data.val1 = sc->data[i]->val1;
		data.val2 = sc->data[i]->val2;
		data.val3 = sc->data[i]->val3;
		data.val4 = sc->data[i]->val4;
		memcpy(WFIFOP(char_fd,14 +count*sizeof(struct status_change_data)),
			&data, sizeof(struct status_change_data));
		count++;
	}
	
	if (count == 0)
		return 0; //Nothing to save.
	
	WFIFOW(char_fd,12) = count;
	WFIFOW(char_fd,2) = 14 +count*sizeof(struct status_change_data); //Total packet size
	WFIFOSET(char_fd,WFIFOW(char_fd,2));
#endif
	
	return 0;
}

/**
* Get current Mercenary lifetime
* @param md The Mercenary
* @return The Lifetime
**/
int mercenary_get_lifetime(struct mercenary_data *md) {
	const struct TimerData * td;
	if( md == NULL || md->contract_timer == INVALID_TIMER )
		return 0;

	td = get_timer(md->contract_timer);
	return (td != NULL) ? DIFF_TICK(td->tick, gettick()) : 0;
}

int elemental_get_lifetime(struct elemental_data *ed) {
	const struct TimerData * td;
	if( ed == NULL || ed->summon_timer == INVALID_TIMER )
		return 0;

	td = get_timer(ed->summon_timer);
	return (td != NULL) ? DIFF_TICK(td->tick, gettick()) : 0;
}

int bg_send_xy_timer_sub(DBKey key, void *data, va_list ap)
{
	struct battleground_data *bg = (struct battleground_data *)data;
	struct map_session_data *sd;
	char output[128];
	int i, m;

	nullpo_ret(bg);
	m = map_mapindex2mapid(bg->mapindex);
	bg->reveal_flag = !bg->reveal_flag; // Switch

	for( i = 0; i < MAX_BG_MEMBERS; i++ )
	{
		if( (sd = bg->members[i].sd) == NULL )
			continue;
		if( battle_config.bg_idle_autokick && DIFF_TICK(last_tick, sd->idletime) >= battle_config.bg_idle_autokick && bg->g )
		{
			sprintf(output, "- AFK [%s] Kicked -", sd->status.name);
			clif_broadcast2(&sd->bl, output, (int)strlen(output)+1, bg->color, 0x190, 20, 0, 0, BG);

			bg_team_leave(sd,3);
			clif_displaymessage(sd->fd, "You have been kicked from Battleground because of your AFK status.");
			pc_setpos(sd,sd->status.save_point.map,sd->status.save_point.x,sd->status.save_point.y,3);
			continue;
		}

		if( sd->bl.x != bg->members[i].x || sd->bl.y != bg->members[i].y )
		{ // xy update
			bg->members[i].x = sd->bl.x;
			bg->members[i].y = sd->bl.y;
			clif_bg_xy(sd);
		}
		if( bg->reveal_pos && bg->reveal_flag && sd->bl.m == m ) // Reveal each 4 seconds
			map_foreachinmap(bg_reveal_pos,m,BL_PC,sd,1,bg->color);
		if( battle_config.bg_idle_announce && !sd->state.bg_afk && DIFF_TICK(last_tick, sd->idletime) >= battle_config.bg_idle_announce && bg->g )
		{ // Idle announces
			sd->state.bg_afk = 1;
			sprintf(output, "%s : %s seens to be away. AFK Warning - Can be kicked out with @reportafk", bg->g->name, sd->status.name);
			clif_bg_message(bg, bg->bg_id, bg->g->name, output, strlen(output) + 1);
		}
	}
	return 0;
}

// Existence check of WISP data
int check_ttl_wisdata_sub(void *key, void *data, va_list ap) {
	unsigned long tick;
	struct WisData *wd = (struct WisData *)data;
	tick = va_arg(ap, unsigned long);

	if (DIFF_TICK(tick, wd->tick) > WISDATA_TTL && wis_delnum < WISDELLIST_MAX)
		wis_dellist[wis_delnum++] = wd->id;

	return 0;
}

/**
 * Existence check of WISP data
 * @see DBApply
 */
int check_ttl_wisdata_sub(DBKey key, DBData *data, va_list ap)
{
	int64 tick;
	struct WisData *wd = DB->data2ptr(data);
	tick = va_arg(ap, int64);

	if (DIFF_TICK(tick, wd->tick) > WISDATA_TTL && wis_delnum < WISDELLIST_MAX)
		wis_dellist[wis_delnum++] = wd->id;

	return 0;
}

int auth_db_cleanup_sub(DBKey key,void *data,va_list ap)
{
	struct auth_node *node=(struct auth_node*)data;

	if(DIFF_TICK(gettick(),node->node_created)>30000) {
		ShowNotice("Character (aid: %d) not authed within 30 seconds of character select!\n", node->account_id);
		if (node->char_dat)
			aFree(node->char_dat);
		db_remove(auth_db, key);
		return 1;
	}
	return 0;
}

// Wisリストの生存チェック
int check_ttl_wislist()
{
	unsigned long tick=gettick();
	struct WisList* p=wis_list, **prev=&wis_list;
	for( ; p; prev=&p->next,p=p->next ){
		if( DIFF_TICK(tick,p->tick)>WISLIST_TTL ){
			*prev=p->next;
			free(p);
			p=*prev;
		}
	}
	return 0;
}

void bg_block_skill_status(struct battleground_data *bg, int skillnum)
{
	const struct TimerData * td;
	char output[128];
	int seconds, idx;

	idx = battle_config.guild_skills_separed_delay ? skillnum - GD_SKILLBASE : 0;
	if( bg == NULL || bg->g == NULL || idx < 0 || idx >= MAX_GUILDSKILL || bg->skill_block_timer[idx] == INVALID_TIMER )
		return;

	if( (td = get_timer(bg->skill_block_timer[idx])) == NULL )
		return;

	seconds = DIFF_TICK(td->tick,gettick())/1000;
	sprintf(output, "%s : Cannot use team skill %s. %d seconds remaining...", bg->g->name, skill_get_desc(skillnum), seconds);
	clif_bg_message(bg, bg->bg_id, bg->g->name, output, strlen(output) + 1);
}

/**
* Attempt to send mail
* @param sd Sender
* @param dest_name Destination name
* @param title Mail title
* @param body_msg Mail message
* @param body_len Message's length
*/
void mail_send(struct map_session_data *sd, const char *dest_name, const char *title, const char *body_msg, int body_len) {
	struct mail_message msg;

	nullpo_retv(sd);

	if( sd->state.trading )
		return;

	if( DIFF_TICK(sd->cansendmail_tick, gettick()) > 0 ) {
		clif_displaymessage(sd->fd,msg_txt(sd,675)); //"Cannot send mails too fast!!."
		clif_Mail_send(sd->fd, true); // fail
		return;
	}

	if( body_len > MAIL_BODY_LENGTH )
		body_len = MAIL_BODY_LENGTH;

	if( !mail_setattachment(sd, &msg) ) { // Invalid Append condition
		clif_Mail_send(sd->fd, true); // fail
		mail_removeitem(sd,0);
		mail_removezeny(sd,0);
		return;
	}

	msg.id = 0; // id will be assigned by charserver
	msg.send_id = sd->status.char_id;
	msg.dest_id = 0; // will attempt to resolve name
	safestrncpy(msg.send_name, sd->status.name, NAME_LENGTH);
	safestrncpy(msg.dest_name, (char*)dest_name, NAME_LENGTH);
	safestrncpy(msg.title, (char*)title, MAIL_TITLE_LENGTH);

	if (msg.title[0] == '\0') {
		return; // Message has no length and somehow client verification was skipped.
	}

	if (body_len)
		safestrncpy(msg.body, (char*)body_msg, body_len + 1);
	else
		memset(msg.body, 0x00, MAIL_BODY_LENGTH);

	msg.timestamp = time(NULL);
	if( !intif_Mail_send(sd->status.account_id, &msg) )
		mail_deliveryfail(sd, &msg);

	sd->cansendmail_tick = gettick() + battle_config.mail_delay; // Flood Protection
}

/**
 * Format message from player to send to the channel
 * - Also truncate extra characters if message is too long
 * @param channel: Channel data
 * @param sd: Player data
 * @param msg: Message to send
 * @return
 *  0: Success
 * -1: Invalid player, channel, or message
 * -2: Delay message from last message
 */
int channel_send(struct Channel *channel, struct map_session_data *sd, const char *msg) {
	int idx = 0;

	if(!channel || !sd || !msg || (idx = channel_pc_haschan(sd, channel)) < 0)
		return -1;

	if(!pc_has_permission(sd, PC_PERM_CHANNEL_ADMIN) && channel->msg_delay != 0 && DIFF_TICK(sd->channel_tick[idx] + channel->msg_delay, gettick()) > 0) {
		clif_messagecolor(&sd->bl,color_table[COLOR_RED],msg_txt(sd,1455),false,SELF); //You're talking too fast!
		return -2;
	}
	else {
		char output[CHAT_SIZE_MAX];
		unsigned long color = channel->color;
		if((channel->opt&CHAN_OPT_COLOR_OVERRIDE) && sd->fontcolor && sd->fontcolor < channel_config.colors_count && channel_config.colors[sd->fontcolor])
			color = channel_config.colors[sd->fontcolor];
		safesnprintf(output, CHAT_SIZE_MAX, "%s %s : %s", channel->alias, sd->status.name, msg);
		clif_channel_msg(channel,output,color);
		sd->channel_tick[idx] = gettick();
	}
	return 0;
}

/**
 * This can still happen (client times out while waiting for char to confirm auth data)
 * @see DBApply
 */
int auth_db_cleanup_sub(DBKey key, DBData *data, va_list ap) {
	struct auth_node *node = DB->data2ptr(data);
	const char* states[] = { "Login", "Logout", "Map change" };
	
	if(DIFF_TICK(gettick(),node->node_created)>60000) {
		switch (node->state) {
			case ST_LOGOUT:
				//Re-save attempt (->sd should never be null here).
				node->node_created = gettick(); //Refresh tick (avoid char-server load if connection is really bad)
				chrif_save(node->sd, 1);
				break;
			default:
				//Clear data. any connected players should have timed out by now.
				ShowInfo("auth_db: Node (state %s) timed out for %d:%d\n", states[node->state], node->account_id, node->char_id);
				chrif_char_offline_nsd(node->account_id, node->char_id);
				chrif_auth_delete(node->account_id, node->char_id, node->state);
				break;
		}
		return 1;
	}
	return 0;
}