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-rw-r--r--src/map/npc.c112
1 files changed, 65 insertions, 47 deletions
diff --git a/src/map/npc.c b/src/map/npc.c
index 827ee76f8..7247aec33 100644
--- a/src/map/npc.c
+++ b/src/map/npc.c
@@ -1114,49 +1114,60 @@ int npc_cashshop_buy(struct map_session_data *sd, int nameid, int amount, int po
return 0;
}
-/*==========================================
- *
- *------------------------------------------*/
+/// Player item purchase from npc shop.
+///
+/// @param item_list 'n' pairs <amount,itemid>
+/// @return result code for clif_parse_NpcBuyListSend
int npc_buylist(struct map_session_data* sd, int n, unsigned short* item_list)
{
- struct npc_data *nd;
+ struct npc_data* nd;
double z;
- int i,j,w,skill,itemamount=0,new_=0;
+ int i,j,w,skill,new_;
nullpo_retr(3, sd);
nullpo_retr(3, item_list);
- if ((nd = npc_checknear(sd,map_id2bl(sd->npc_shopid))) == NULL)
+ nd = npc_checknear(sd,map_id2bl(sd->npc_shopid));
+ if( nd == NULL )
return 3;
-
- if (nd->master_nd) //Script-based shops.
+ if( nd->master_nd != NULL ) //Script-based shops.
return npc_buylist_sub(sd,n,item_list,nd->master_nd);
-
- if (nd->subtype != SHOP)
+ if( nd->subtype != SHOP )
return 3;
- for(i=0,w=0,z=0; i < n; i++) {
- for(j=0; nd->u.shop.shop_item[j].nameid; j++) {
- if (nd->u.shop.shop_item[j].nameid==item_list[i*2+1] || //Normal items
- itemdb_viewid(nd->u.shop.shop_item[j].nameid)==item_list[i*2+1]) //item_avail replacement
- break;
- }
- if (nd->u.shop.shop_item[j].nameid == 0 || !itemdb_exists(nd->u.shop.shop_item[j].nameid))
- return 3;
+ z = 0;
+ w = 0;
+ new_ = 0;
+ // process entries in buy list, one by one
+ for( i = 0; i < n; ++i )
+ {
+ int nameid, amount, value;
+
+ // find this entry in the shop's sell list
+ ARR_FIND( 0, nd->u.shop.count, j,
+ item_list[i*2+1] == nd->u.shop.shop_item[j].nameid || //Normal items
+ item_list[i*2+1] == itemdb_viewid(nd->u.shop.shop_item[j].nameid) //item_avail replacement
+ );
+
+ if( j == nd->u.shop.count )
+ return 3; // no such item in shop
- if (!itemdb_isstackable(nd->u.shop.shop_item[j].nameid) && item_list[i*2] > 1)
+ amount = item_list[i*2+0];
+ nameid = item_list[i*2+1] = nd->u.shop.shop_item[j].nameid; //item_avail replacement
+ value = nd->u.shop.shop_item[j].value;
+
+ if( !itemdb_exists(nameid) )
+ return 3; // item no longer in itemdb
+
+ if( !itemdb_isstackable(nameid) && amount > 1 )
{ //Exploit? You can't buy more than 1 of equipment types o.O
ShowWarning("Player %s (%d:%d) sent a hexed packet trying to buy %d of nonstackable item %d!\n",
- sd->status.name, sd->status.account_id, sd->status.char_id, item_list[i*2], nd->u.shop.shop_item[j].nameid);
- item_list[i*2] = 1;
+ sd->status.name, sd->status.account_id, sd->status.char_id, amount, nameid);
+ amount = item_list[i*2+0] = 1;
}
- if (itemdb_value_notdc(nd->u.shop.shop_item[j].nameid))
- z+=(double)nd->u.shop.shop_item[j].value * item_list[i*2];
- else
- z+=(double)pc_modifybuyvalue(sd,nd->u.shop.shop_item[j].value) * item_list[i*2];
- itemamount+=item_list[i*2];
- switch(pc_checkadditem(sd,nd->u.shop.shop_item[j].nameid,item_list[i*2])) {
+ switch( pc_checkadditem(sd,nameid,amount) )
+ {
case ADDITEM_EXIST:
break;
@@ -1168,46 +1179,54 @@ int npc_buylist(struct map_session_data* sd, int n, unsigned short* item_list)
return 2;
}
- w += itemdb_weight(nd->u.shop.shop_item[j].nameid) * item_list[i*2];
+ if( !itemdb_value_notdc(nameid) )
+ value = pc_modifybuyvalue(sd,value);
- if (nd->u.shop.shop_item[j].nameid != item_list[i*2+1])
- item_list[i*2+1] = nd->u.shop.shop_item[j].nameid; // item_avail replacement
+ z += (double)value * amount;
+ w += itemdb_weight(nameid) * amount;
}
- if (z > (double)sd->status.zeny)
+
+ if( z > (double)sd->status.zeny )
return 1; // Not enough Zeny
- if (w+sd->weight > sd->max_weight)
+ if( w + sd->weight > sd->max_weight )
return 2; // Too heavy
- if (pc_inventoryblank(sd) < new_)
+ if( pc_inventoryblank(sd) < new_ )
return 3; // Not enough space to store items
//Logs (S)hopping Zeny [Lupus]
- if(log_config.zeny > 0 )
+ if( log_config.zeny > 0 )
log_zeny(sd, "S", sd, -(int)z);
//Logs
pc_payzeny(sd,(int)z);
- for(i=0; i<n; i++) {
+
+ for( i = 0; i < n; ++i )
+ {
+ int nameid = item_list[i*2+1];
+ int amount = item_list[i*2+0];
struct item item_tmp;
memset(&item_tmp,0,sizeof(item_tmp));
- item_tmp.nameid = item_list[i*2+1];
- item_tmp.identify = 1; // npc”Ì”„ƒAƒCƒeƒ€‚ÍŠÓ’èÏ‚Ý
+ item_tmp.nameid = nameid;
+ item_tmp.identify = 1;
- pc_additem(sd,&item_tmp,item_list[i*2]);
+ pc_additem(sd,&item_tmp,amount);
//Logs items, Bought in NPC (S)hop [Lupus]
- if(log_config.enable_logs&0x20)
- log_pick_pc(sd, "S", item_tmp.nameid, item_list[i*2], NULL);
+ if( log_config.enable_logs&0x20 )
+ log_pick_pc(sd, "S", item_tmp.nameid, amount, NULL);
//Logs
}
- //¤lŒoŒ±’l
- if (battle_config.shop_exp > 0 && z > 0 && (skill = pc_checkskill(sd,MC_DISCOUNT)) > 0) {
- if (sd->status.skill[MC_DISCOUNT].flag != 0)
+ // custom merchant shop exp bonus
+ if( battle_config.shop_exp > 0 && z > 0 && (skill = pc_checkskill(sd,MC_DISCOUNT)) > 0 )
+ {
+ if( sd->status.skill[MC_DISCOUNT].flag != 0 )
skill = sd->status.skill[MC_DISCOUNT].flag - 2;
- if (skill > 0) {
+ if( skill > 0 )
+ {
z = z * (double)skill * (double)battle_config.shop_exp/10000.;
- if (z < 1)
+ if( z < 1 )
z = 1;
pc_gainexp(sd,NULL,0,(int)z);
}
@@ -1222,7 +1241,7 @@ int npc_buylist(struct map_session_data* sd, int n, unsigned short* item_list)
int npc_selllist(struct map_session_data* sd, int n, unsigned short* item_list)
{
double z;
- int i,skill,itemamount=0;
+ int i,skill;
struct npc_data *nd;
nullpo_retr(1, sd);
@@ -1265,7 +1284,6 @@ int npc_selllist(struct map_session_data* sd, int n, unsigned short* item_list)
pc_setreg(sd,add_str("@sold_nameid")+(i<<24),(int)sd->status.inventory[idx].nameid);
pc_setreg(sd,add_str("@sold_quantity")+(i<<24),qty);
}
- itemamount+=qty;
pc_delitem(sd,idx,qty,0);
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-07 04:38:37 +0000