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rathena/src/map/trade.c
skotlex f56c98572b - NPC_AGIUP will now give movement boost of 50% 
- Fixed WZ_WATERBALL number of hits when used by non-players.
- MO_BODYRELOCATION will send the slide packet with the actual src's coordinates rather than selected tile.


git-svn-id: https://svn.code.sf.net/p/rathena/svn/trunk@6638 54d463be-8e91-2dee-dedb-b68131a5f0ec
2006-05-18 13:52:56 +00:00

538 lines
18 KiB
C
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// Copyright (c) Athena Dev Teams - Licensed under GNU GPL
// For more information, see LICENCE in the main folder
#include <stdio.h>
#include <string.h>
#include "../common/nullpo.h"
#include "clif.h"
#include "itemdb.h"
#include "map.h"
#include "trade.h"
#include "pc.h"
#include "npc.h"
#include "battle.h"
#include "chrif.h"
#include "storage.h"
#include "intif.h"
#include "atcommand.h"
#include "log.h"
/*==========================================
* Initiates a trade request.
*------------------------------------------
*/
void trade_traderequest(struct map_session_data *sd, int target_id) {
struct map_session_data *target_sd;
int level;
nullpo_retv(sd);
if (map[sd->bl.m].flag.notrade) {
clif_displaymessage (sd->fd, msg_txt(272));
return; //Can't trade in notrade mapflag maps.
}
if ((target_sd = map_id2sd(target_id)) == NULL || sd == target_sd) {
clif_tradestart(sd, 1); // character does not exist
return;
}
if (!battle_config.invite_request_check) {
if (target_sd->guild_invite > 0 || target_sd->party_invite > 0) {
clif_tradestart(sd, 2);
return;
}
}
if ((target_sd->trade_partner != 0) || (sd->trade_partner != 0)) {
trade_tradecancel(sd); // person is in another trade
return;
}
level = pc_isGM(sd);
if ( pc_can_give_items(level) || pc_can_give_items(pc_isGM(target_sd)) ) //check if both GMs are allowed to trade
{
clif_displaymessage(sd->fd, msg_txt(246));
trade_tradecancel(sd); // GM is not allowed to trade
return;
}
//Fixed. Only real GMs can request trade from far away! [Lupus]
if (level < lowest_gm_level && (sd->bl.m != target_sd->bl.m ||
(sd->bl.x - target_sd->bl.x <= -5 || sd->bl.x - target_sd->bl.x >= 5) ||
(sd->bl.y - target_sd->bl.y <= -5 || sd->bl.y - target_sd->bl.y >= 5))) {
clif_tradestart(sd, 0); // too far
return ;
}
target_sd->trade_partner = sd->status.account_id;
sd->trade_partner = target_sd->status.account_id;
clif_traderequest(target_sd, sd->status.name);
}
/*==========================================
* Reply to a trade-request.
*------------------------------------------
*/
void trade_tradeack(struct map_session_data *sd, int type) {
struct map_session_data *target_sd;
nullpo_retv(sd);
if (sd->state.trading || !sd->trade_partner)
return; //Already trading or no partner set.
if ((target_sd = map_id2sd(sd->trade_partner)) == NULL) {
sd->trade_partner=0;
return;
}
clif_tradestart(target_sd, type);
clif_tradestart(sd, type);
if (type == 4) { // Cancel
sd->state.deal_locked = 0;
sd->trade_partner = 0;
target_sd->state.deal_locked = 0;
target_sd->trade_partner = 0;
}
if (type == 3) { //Initiate trade
sd->state.trading = 1;
target_sd->state.trading = 1;
memset(&sd->deal, 0, sizeof(sd->deal));
memset(&target_sd->deal, 0, sizeof(target_sd->deal));
}
if (sd->npc_id)
npc_event_dequeue(sd);
if (target_sd->npc_id)
npc_event_dequeue(target_sd);
/* Why? It should be allowed to bring items from storage to inventory for trading, but not the other way around
* (this is blocked on clif.c) [Skotlex]
//close STORAGE window if it's open. It protects from spooffing packets [Lupus]
if (sd->state.storage_flag == 1)
storage_storageclose(sd);
else if (sd->state.storage_flag == 2)
storage_guild_storageclose(sd);
*/
}
/*==========================================
* Check here hacker for duplicate item in trade
* normal client refuse to have 2 same types of item (except equipment) in same trade window
* normal client authorise only no equiped item and only from inventory
*------------------------------------------
*/
int impossible_trade_check(struct map_session_data *sd) {
struct item inventory[MAX_INVENTORY];
char message_to_gm[200];
int i, index;
nullpo_retr(1, sd);
if(sd->deal.zeny > sd->status.zeny)
{
pc_setglobalreg(sd,"ZENY_HACKER",1);
return -1;
}
// get inventory of player
memcpy(&inventory, &sd->status.inventory, sizeof(struct item) * MAX_INVENTORY);
// remove this part: arrows can be trade and equiped
// re-added! [celest]
// remove equiped items (they can not be trade)
for (i = 0; i < MAX_INVENTORY; i++)
if (inventory[i].nameid > 0 && inventory[i].equip && !(inventory[i].equip & 0x8000))
memset(&inventory[i], 0, sizeof(struct item));
// check items in player inventory
for(i = 0; i < 10; i++) {
if (!sd->deal.item[i].amount)
continue;
index = sd->deal.item[i].index;
if (inventory[index].amount < sd->deal.item[i].amount)
{ // if more than the player have -> hack
sprintf(message_to_gm, msg_txt(538), sd->status.name, sd->status.account_id); // Hack on trade: character '%s' (account: %d) try to trade more items that he has.
intif_wis_message_to_gm(wisp_server_name, battle_config.hack_info_GM_level, message_to_gm);
sprintf(message_to_gm, msg_txt(539), inventory[index].amount, inventory[index].nameid, sd->deal.item[i].amount); // This player has %d of a kind of item (id: %d), and try to trade %d of them.
intif_wis_message_to_gm(wisp_server_name, battle_config.hack_info_GM_level, message_to_gm);
// if we block people
if (battle_config.ban_hack_trade < 0) {
chrif_char_ask_name(-1, sd->status.name, 1, 0, 0, 0, 0, 0, 0); // type: 1 - block
clif_setwaitclose(sd->fd); // forced to disconnect because of the hack
// message about the ban
sprintf(message_to_gm, msg_txt(540), battle_config.ban_spoof_namer); // This player has been definitivly blocked.
// if we ban people
} else if (battle_config.ban_hack_trade > 0) {
chrif_char_ask_name(-1, sd->status.name, 2, 0, 0, 0, 0, battle_config.ban_hack_trade, 0); // type: 2 - ban (year, month, day, hour, minute, second)
clif_setwaitclose(sd->fd); // forced to disconnect because of the hack
// message about the ban
sprintf(message_to_gm, msg_txt(507), battle_config.ban_spoof_namer); // This player has been banned for %d minute(s).
} else
// message about the ban
sprintf(message_to_gm, msg_txt(508)); // This player hasn't been banned (Ban option is disabled).
intif_wis_message_to_gm(wisp_server_name, battle_config.hack_info_GM_level, message_to_gm);
return 1;
}
inventory[index].amount -= sd->deal.item[i].amount; // remove item from inventory
}
return 0;
}
/*==========================================
* Checks if trade is possible (against zeny limits, inventory limits, etc)
*------------------------------------------
*/
int trade_check(struct map_session_data *sd, struct map_session_data *tsd) {
struct item inventory[MAX_INVENTORY];
struct item inventory2[MAX_INVENTORY];
struct item_data *data;
int trade_i, i, amount, n;
// check zenys value against hackers (Zeny was already checked on time of adding, but you never know when you lost some zeny since then.
if(sd->deal.zeny > sd->status.zeny || (tsd->status.zeny > MAX_ZENY - sd->deal.zeny))
return 0;
if(tsd->deal.zeny > tsd->status.zeny || (sd->status.zeny > MAX_ZENY - tsd->deal.zeny))
return 0;
// get inventory of player
memcpy(&inventory, &sd->status.inventory, sizeof(struct item) * MAX_INVENTORY);
memcpy(&inventory2, &tsd->status.inventory, sizeof(struct item) * MAX_INVENTORY);
// check free slot in both inventory
for(trade_i = 0; trade_i < 10; trade_i++) {
amount = sd->deal.item[trade_i].amount;
if (amount) {
n = sd->deal.item[trade_i].index;
if (amount > inventory[n].amount)
return 0; //qty Exploit?
data = itemdb_search(inventory[n].nameid);
i = MAX_INVENTORY;
if (!itemdb_isequip2(data)) { //Stackable item.
for(i = 0; i < MAX_INVENTORY; i++)
if (inventory2[i].nameid == inventory[n].nameid &&
inventory2[i].card[0] == inventory[n].card[0] && inventory2[i].card[1] == inventory[n].card[1] &&
inventory2[i].card[2] == inventory[n].card[2] && inventory2[i].card[3] == inventory[n].card[3]) {
if (inventory2[i].amount + amount > MAX_AMOUNT)
return 0;
inventory2[i].amount += amount;
inventory[n].amount -= amount;
//let's not make room, as pc_additem is done before pc_delitem, so it could lead to problems depending on order.
// if (!inventory[n].amount)
// memset(&inventory[n], 0, sizeof(struct item));
break;
}
}
if (i == MAX_INVENTORY) {// look for an empty slot.
for(i = 0; i < MAX_INVENTORY && inventory2[i].nameid; i++);
if (i == MAX_INVENTORY)
return 0;
memcpy(&inventory2[i], &inventory[n], sizeof(struct item));
inventory2[i].amount = amount;
inventory[n].amount -= amount;
// if (!inventory[n].amount)
// memset(&inventory[n], 0, sizeof(struct item));
}
}
amount = tsd->deal.item[trade_i].amount;
if (!amount)
continue;
n = tsd->deal.item[trade_i].index;
if (amount > inventory2[n].amount)
return 0;
// search if it's possible to add item (for full inventory)
data = itemdb_search(inventory2[n].nameid);
i = MAX_INVENTORY;
if (!itemdb_isequip2(data)) {
for(i = 0; i < MAX_INVENTORY; i++)
if (inventory[i].nameid == inventory2[n].nameid &&
inventory[i].card[0] == inventory2[n].card[0] && inventory[i].card[1] == inventory2[n].card[1] &&
inventory[i].card[2] == inventory2[n].card[2] && inventory[i].card[3] == inventory2[n].card[3]) {
if (inventory[i].amount + amount > MAX_AMOUNT)
return 0;
inventory[i].amount += amount;
inventory2[n].amount -= amount;
// if (!inventory2[n].amount)
// memset(&inventory2[n], 0, sizeof(struct item));
break;
}
}
if (i == MAX_INVENTORY) {
for(i = 0; i < MAX_INVENTORY && inventory[i].nameid; i++);
if (i == MAX_INVENTORY)
return 0;
memcpy(&inventory[i], &inventory2[n], sizeof(struct item));
inventory[i].amount = amount;
inventory2[n].amount -= amount;
// if (!inventory2[n].amount)
// memset(&inventory2[n], 0, sizeof(struct item));
}
}
return 1;
}
/*==========================================
* Adds an item/qty to the trade window [rewrite by Skotlex]
*------------------------------------------
*/
void trade_tradeadditem(struct map_session_data *sd, int index, int amount) {
struct map_session_data *target_sd;
int trade_i, trade_weight, nameid;
nullpo_retv(sd);
if (!sd->state.trading || sd->state.deal_locked > 0)
return; //Can't add stuff.
if ((target_sd = map_id2sd(sd->trade_partner)) == NULL) {
trade_tradecancel(sd);
return;
}
if (index == 0)
{ //Adding Zeny
if (amount >= 0 && amount <= sd->status.zeny && // check amount
(amount <= MAX_ZENY - target_sd->status.zeny)) // fix positiv overflow
{ //Check Ok
sd->deal.zeny = amount;
clif_tradeadditem(sd, target_sd, 0, amount);
} else //Cancel Transaction
clif_tradeitemok(sd, 0, 1); //Send overweight when trying to add too much zeny? Hope they get the idea...
return;
}
//Add an Item
index = index -2; //Why the actual index used is -2?
//Item checks...
if (index < 0 || index > MAX_INVENTORY)
return;
if (amount < 0 || amount > sd->status.inventory[index].amount)
return;
nameid = sd->inventory_data[index]->nameid;
if (!itemdb_cantrade(nameid, pc_isGM(sd), pc_isGM(target_sd)) && //Can't trade
(pc_get_partner(sd) != target_sd || !itemdb_canpartnertrade(nameid, pc_isGM(sd), pc_isGM(target_sd)))) //Can't partner-trade
{
clif_displaymessage (sd->fd, msg_txt(260));
return;
}
for(trade_i = 0; trade_i < 10; trade_i++)
{ //Locate a trade position
if (sd->deal.item[trade_i].index == index ||
sd->deal.item[trade_i].amount == 0)
break;
}
if (trade_i >= 10) //No space left
return;
trade_weight = sd->inventory_data[index]->weight * amount;
if (target_sd->weight + sd->deal.weight + trade_weight > target_sd->max_weight)
{ //fail to add item -- the player was over weighted.
clif_tradeitemok(sd, index+2, 1);
return;
}
if (sd->deal.item[trade_i].index == index)
{ //The same item as before is being readjusted.
if (sd->deal.item[trade_i].amount + amount > sd->status.inventory[index].amount)
{ //packet deal exploit check
amount = sd->status.inventory[index].amount - sd->deal.item[trade_i].amount;
trade_weight = sd->inventory_data[index]->weight * amount;
}
sd->deal.item[trade_i].amount += amount;
} else { //New deal item
sd->deal.item[trade_i].index = index;
sd->deal.item[trade_i].amount = amount;
}
sd->deal.weight += trade_weight;
clif_tradeitemok(sd, index+2, 0); // Return the index as it was received
clif_tradeadditem(sd, target_sd, index+2, amount); //index fix
}
/*==========================================
* 'Ok' button on the trade window is pressed.
*------------------------------------------
*/
void trade_tradeok(struct map_session_data *sd) {
struct map_session_data *target_sd;
if(sd->state.deal_locked || !sd->state.trading)
return;
if ((target_sd = map_id2sd(sd->trade_partner)) == NULL) {
trade_tradecancel(sd);
return;
}
sd->state.deal_locked = 1;
clif_tradeitemok(sd, 0, 0);
clif_tradedeal_lock(sd, 0);
clif_tradedeal_lock(target_sd, 1);
}
/*==========================================
* 'Cancel' is pressed. (or trade was force-cancelled by the code)
*------------------------------------------
*/
void trade_tradecancel(struct map_session_data *sd) {
struct map_session_data *target_sd;
int trade_i;
if(!sd->state.trading)
return;
for(trade_i = 0; trade_i < 10; trade_i++) { // give items back (only virtual)
if (!sd->deal.item[trade_i].amount)
continue;
clif_additem(sd, sd->deal.item[trade_i].index, sd->deal.item[trade_i].amount, 0);
sd->deal.item[trade_i].index = 0;
sd->deal.item[trade_i].amount = 0;
}
if (sd->deal.zeny) {
clif_updatestatus(sd, SP_ZENY);
sd->deal.zeny = 0;
}
target_sd = map_id2sd(sd->trade_partner);
sd->state.deal_locked = 0;
sd->state.trading = 0;
sd->trade_partner = 0;
clif_tradecancelled(sd);
if (!target_sd)
return;
for(trade_i = 0; trade_i < 10; trade_i++) { // give items back (only virtual)
if (!target_sd->deal.item[trade_i].amount)
continue;
clif_additem(target_sd, target_sd->deal.item[trade_i].index, target_sd->deal.item[trade_i].amount, 0);
target_sd->deal.item[trade_i].index = 0;
target_sd->deal.item[trade_i].amount = 0;
}
if (target_sd->deal.zeny) {
clif_updatestatus(target_sd, SP_ZENY);
target_sd->deal.zeny = 0;
}
target_sd->state.deal_locked = 0;
target_sd->trade_partner = 0;
target_sd->state.trading = 0;
clif_tradecancelled(target_sd);
}
/*==========================================
* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>(trade<64><65><EFBFBD><EFBFBD>)
*------------------------------------------
*/
void trade_tradecommit(struct map_session_data *sd) {
struct map_session_data *tsd;
int trade_i;
int flag;
if (!sd->state.trading || !sd->state.deal_locked) //Locked should be 1 (pressed ok) before you can press trade.
return;
if ((tsd = map_id2sd(sd->trade_partner)) == NULL) {
trade_tradecancel(sd);
return;
}
sd->state.deal_locked = 2;
if (tsd->state.deal_locked < 2)
return; //Not yet time for trading.
//Now is a good time (to save on resources) to check that the trade can indeed be made and it's not exploitable.
// check exploit (trade more items that you have)
if (impossible_trade_check(sd)) {
trade_tradecancel(sd);
return;
}
// check exploit (trade more items that you have)
if (impossible_trade_check(tsd)) {
trade_tradecancel(tsd);
return;
}
// check for full inventory (can not add traded items)
if (!trade_check(sd,tsd)) { // check the both players
trade_tradecancel(sd);
return;
}
// trade is accepted and correct.
for(trade_i = 0; trade_i < 10; trade_i++) {
int n;
if (sd->deal.item[trade_i].amount) {
n = sd->deal.item[trade_i].index;
flag = pc_additem(tsd, &sd->status.inventory[n], sd->deal.item[trade_i].amount);
if (flag == 0) {
//Logs (T)rade [Lupus]
if(log_config.pick > 0 )
log_pick(sd, "T", 0, sd->status.inventory[n].nameid, -(sd->deal.item[trade_i].amount), &sd->status.inventory[n]);
log_pick(tsd, "T", 0, sd->status.inventory[n].nameid, sd->deal.item[trade_i].amount, &sd->status.inventory[n]);
//Logs
pc_delitem(sd, n, sd->deal.item[trade_i].amount, 1);
} else
clif_additem(sd, n, sd->deal.item[trade_i].amount, 0);
sd->deal.item[trade_i].index = 0;
sd->deal.item[trade_i].amount = 0;
}
if (tsd->deal.item[trade_i].amount) {
n = tsd->deal.item[trade_i].index;
flag = pc_additem(sd, &tsd->status.inventory[n], tsd->deal.item[trade_i].amount);
if (flag == 0) {
//Logs (T)rade [Lupus]
if(log_config.pick > 0 )
log_pick(tsd, "T", 0, tsd->status.inventory[n].nameid, -(tsd->deal.item[trade_i].amount), &tsd->status.inventory[n]);
log_pick(sd, "T", 0, tsd->status.inventory[n].nameid, tsd->deal.item[trade_i].amount, &tsd->status.inventory[n]);
//Logs
pc_delitem(tsd, n, tsd->deal.item[trade_i].amount, 1);
} else
clif_additem(tsd, n, tsd->deal.item[trade_i].amount, 0);
tsd->deal.item[trade_i].index = 0;
tsd->deal.item[trade_i].amount = 0;
}
}
if (sd->deal.zeny || tsd->deal.zeny) {
if (sd->deal.zeny) {
sd->status.zeny -= sd->deal.zeny;
tsd->status.zeny += sd->deal.zeny;
if (log_config.zeny)
log_zeny(tsd, "T", sd, sd->deal.zeny);//Logs Zeny (T)rade [Lupus]
sd->deal.zeny = 0;
}
if (tsd->deal.zeny) {
tsd->status.zeny -= tsd->deal.zeny;
sd->status.zeny += tsd->deal.zeny;
if (log_config.zeny)
log_zeny(sd, "T", tsd, tsd->deal.zeny);//Logs Zeny (T)rade [Lupus]
tsd->deal.zeny = 0;
}
clif_updatestatus(sd, SP_ZENY);
clif_updatestatus(tsd, SP_ZENY);
}
sd->state.deal_locked = 0;
sd->trade_partner = 0;
sd->state.trading = 0;
tsd->state.deal_locked = 0;
tsd->trade_partner = 0;
tsd->state.trading = 0;
clif_tradecompleted(sd, 0);
clif_tradecompleted(tsd, 0);
// save both player to avoid crash: they always have no advantage/disadvantage between the 2 players
chrif_save(sd,0); // do pc_makesavestatus and save storage too
chrif_save(tsd,0); // do pc_makesavestatus and save storage too
}
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