summaryrefslogblamecommitdiff
path: root/src/map/buyingstore.c
blob: 5b9734819853ed0a63566a6680bde68e4c21ac18 (plain) (tree)
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470















































                                                                                                                                                        
                                                                                                                                  




































































































































































































































































































































































































































                                                                                                                                                                                                                                                
// Copyright (c) Athena Dev Teams - Licensed under GNU GPL
// For more information, see LICENCE in the main folder

#include "../common/cbasetypes.h"
#include "../common/db.h"  // ARR_FIND
#include "../common/showmsg.h"  // ShowWarning
#include "../common/socket.h"  // RBUF*
#include "../common/strlib.h"  // safestrncpy
#include "atcommand.h"  // msg_txt
#include "battle.h"  // battle_config.*
#include "buyingstore.h"  // struct s_buyingstore
#include "clif.h"  // clif_buyingstore_*
#include "log.h"  // log_pick_pc, log_zeny
#include "pc.h"  // struct map_session_data


/// constants (client-side restrictions)
#define BUYINGSTORE_MAX_PRICE 99990000
#define BUYINGSTORE_MAX_AMOUNT 9999


/// failure constants for clif functions
enum e_buyingstore_failure
{
	BUYINGSTORE_CREATE               = 1,  // "Failed to open buying store."
	BUYINGSTORE_CREATE_OVERWEIGHT    = 2,  // "Total amount of then possessed items exceeds the weight limit by %d. Please re-enter."
	BUYINGSTORE_TRADE_BUYER_ZENY     = 3,  // "All items within the buy limit were purchased."
	BUYINGSTORE_TRADE_BUYER_NO_ITEMS = 4,  // "All items were purchased."
	BUYINGSTORE_TRADE_SELLER_FAILED  = 5,  // "The deal has failed."
	BUYINGSTORE_TRADE_SELLER_COUNT   = 6,  // "The trade failed, because the entered amount of item %s is higher, than the buyer is willing to buy."
	BUYINGSTORE_TRADE_SELLER_ZENY    = 7,  // "The trade failed, because the buyer is lacking required balance."
	BUYINGSTORE_CREATE_NO_INFO       = 8,  // "No sale (purchase) information available."
};


static unsigned int buyingstore_nextid = 0;
static const short buyingstore_blankslots[MAX_SLOTS] = { 0 };  // used when checking whether or not an item's card slots are blank


/// Returns unique buying store id
static unsigned int buyingstore_getuid(void)
{
	return buyingstore_nextid++;
}


bool buyingstore_setup(struct map_session_data* sd, unsigned char slots)
{
	if( !battle_config.feature_buying_store || sd->state.vending || sd->state.buyingstore || sd->state.trading || slots == 0 )
	{
		return false;
	}

	if( sd->sc.data[SC_NOCHAT] && (sd->sc.data[SC_NOCHAT]->val1&MANNER_NOROOM) )
	{// custom: mute limitation
		return false;
	}

	if( map[sd->bl.m].flag.novending || map_getcell(sd->bl.m, sd->bl.x, sd->bl.y, CELL_CHKNOVENDING) )
	{// custom: no vending maps/cells
		clif_displaymessage(sd->fd, msg_txt(276)); // "You can't open a shop on this map"
		return false;
	}

	if( slots > MAX_BUYINGSTORE_SLOTS )
	{
		ShowWarning("buyingstore_setup: Requested %d slots, but server supports only %d slots.\n", (int)slots, MAX_BUYINGSTORE_SLOTS);
		slots = MAX_BUYINGSTORE_SLOTS;
	}

	sd->buyingstore.slots = slots;
	clif_buyingstore_open(sd);

	return true;
}


void buyingstore_create(struct map_session_data* sd, int zenylimit, unsigned char result, const char* storename, const uint8* itemlist, unsigned int count)
{
	unsigned int i, weight, listidx;
	struct item_data* id;

	if( !result || count == 0 )
	{// canceled, or no items
		return;
	}

	if( !battle_config.feature_buying_store || pc_istrading(sd) || sd->buyingstore.slots == 0 || count > sd->buyingstore.slots || zenylimit <= 0 || zenylimit > sd->status.zeny || !storename[0] )
	{// disabled or invalid input
		sd->buyingstore.slots = 0;
		clif_buyingstore_open_failed(sd, BUYINGSTORE_CREATE, 0);
		return;
	}

	if( !pc_can_give_items(pc_isGM(sd)) )
	{// custom: GM is not allowed to buy (give zeny)
		sd->buyingstore.slots = 0;
		clif_displaymessage(sd->fd, msg_txt(246));
		clif_buyingstore_open_failed(sd, BUYINGSTORE_CREATE, 0);
		return;
	}

	if( sd->sc.data[SC_NOCHAT] && (sd->sc.data[SC_NOCHAT]->val1&MANNER_NOROOM) )
	{// custom: mute limitation
		return;
	}

	if( map[sd->bl.m].flag.novending || map_getcell(sd->bl.m, sd->bl.x, sd->bl.y, CELL_CHKNOVENDING) )
	{// custom: no vending maps/cells
		clif_displaymessage(sd->fd, msg_txt(276)); // "You can't open a shop on this map"
		return;
	}

	weight = sd->weight;

	// check item list
	for( i = 0; i < count; i++ )
	{// itemlist: <name id>.W <amount>.W <price>.L
		unsigned short nameid, amount;
		int price, idx;

		nameid = RBUFW(itemlist,i*8+0);
		amount = RBUFW(itemlist,i*8+2);
		price  = RBUFL(itemlist,i*8+4);

		if( ( id = itemdb_exists(nameid) ) == NULL || amount == 0 )
		{// invalid input
			break;
		}

		if( price <= 0 || price > BUYINGSTORE_MAX_PRICE )
		{// invalid price: unlike vending, items cannot be bought at 0 Zeny
			break;
		}

		if( !id->flag.buyingstore || !itemdb_cantrade_sub(id, pc_isGM(sd), pc_isGM(sd)) || ( idx = pc_search_inventory(sd, nameid) ) == -1 )
		{// restrictions: allowed, no character-bound items and at least one must be owned
			break;
		}

		if( sd->status.inventory[idx].amount+amount > BUYINGSTORE_MAX_AMOUNT )
		{// too many items of same kind
			break;
		}

		if( i )
		{// duplicate check. as the client does this too, only malicious intent should be caught here
			ARR_FIND( 0, i, listidx, sd->buyingstore.items[i].nameid == nameid );
			if( listidx != i )
			{// duplicate
				ShowWarning("buyingstore_create: Found duplicate item on buying list (nameid=%hu, amount=%hu, account_id=%d, char_id=%d).\n", nameid, amount, sd->status.account_id, sd->status.char_id);
				break;
			}
		}

		weight+= id->weight*amount;
		sd->buyingstore.items[i].nameid = nameid;
		sd->buyingstore.items[i].amount = amount;
		sd->buyingstore.items[i].price  = price;
	}

	if( i != count )
	{// invalid item/amount/price
		sd->buyingstore.slots = 0;
		clif_buyingstore_open_failed(sd, BUYINGSTORE_CREATE, 0);
		return;
	}

	if( (sd->max_weight*90)/100 < weight )
	{// not able to carry all wanted items without getting overweight (90%)
		sd->buyingstore.slots = 0;
		clif_buyingstore_open_failed(sd, BUYINGSTORE_CREATE_OVERWEIGHT, weight);
		return;
	}

	// success
	sd->state.buyingstore = true;
	sd->buyer_id = buyingstore_getuid();
	sd->buyingstore.zenylimit = zenylimit;
	sd->buyingstore.slots = i;  // store actual amount of items
	safestrncpy(sd->message, storename, sizeof(sd->message));
	clif_buyingstore_myitemlist(sd);
	clif_buyingstore_entry(sd);
}


void buyingstore_close(struct map_session_data* sd)
{
	if( sd->state.buyingstore )
	{
		// invalidate data
		sd->state.buyingstore = false;
		memset(&sd->buyingstore, 0, sizeof(sd->buyingstore));

		// notify other players
		clif_buyingstore_disappear_entry(sd);
	}
}


void buyingstore_open(struct map_session_data* sd, int account_id)
{
	struct map_session_data* pl_sd;

	if( !battle_config.feature_buying_store || pc_istrading(sd) )
	{// not allowed to sell
		return;
	}

	if( !pc_can_give_items(pc_isGM(sd)) )
	{// custom: GM is not allowed to sell
		clif_displaymessage(sd->fd, msg_txt(246));
		return;
	}

	if( ( pl_sd = map_id2sd(account_id) ) == NULL || !pl_sd->state.buyingstore )
	{// not online or not buying
		return;
	}

	if( !searchstore_queryremote(sd, account_id) && ( sd->bl.m != pl_sd->bl.m || !check_distance_bl(&sd->bl, &pl_sd->bl, AREA_SIZE) ) )
	{// out of view range
		return;
	}

	// success
	clif_buyingstore_itemlist(sd, pl_sd);
}


void buyingstore_trade(struct map_session_data* sd, int account_id, unsigned int buyer_id, const uint8* itemlist, unsigned int count)
{
	int zeny = 0;
	unsigned int i, weight, listidx, k;
	struct map_session_data* pl_sd;

	if( count == 0 )
	{// nothing to do
		return;
	}

	if( !battle_config.feature_buying_store || pc_istrading(sd) )
	{// not allowed to sell
		clif_buyingstore_trade_failed_seller(sd, BUYINGSTORE_TRADE_SELLER_FAILED, 0);
		return;
	}

	if( !pc_can_give_items(pc_isGM(sd)) )
	{// custom: GM is not allowed to sell
		clif_displaymessage(sd->fd, msg_txt(246));
		clif_buyingstore_trade_failed_seller(sd, BUYINGSTORE_TRADE_SELLER_FAILED, 0);
		return;
	}

	if( ( pl_sd = map_id2sd(account_id) ) == NULL || !pl_sd->state.buyingstore || pl_sd->buyer_id != buyer_id )
	{// not online, not buying or not same store
		clif_buyingstore_trade_failed_seller(sd, BUYINGSTORE_TRADE_SELLER_FAILED, 0);
		return;
	}

	if( !searchstore_queryremote(sd, account_id) && ( sd->bl.m != pl_sd->bl.m || !check_distance_bl(&sd->bl, &pl_sd->bl, AREA_SIZE) ) )
	{// out of view range
		clif_buyingstore_trade_failed_seller(sd, BUYINGSTORE_TRADE_SELLER_FAILED, 0);
		return;
	}

	searchstore_clearremote(sd);

	if( pl_sd->status.zeny < pl_sd->buyingstore.zenylimit )
	{// buyer lost zeny in the mean time? fix the limit
		pl_sd->buyingstore.zenylimit = pl_sd->status.zeny;
	}
	weight = pl_sd->weight;

	// check item list
	for( i = 0; i < count; i++ )
	{// itemlist: <index>.W <name id>.W <amount>.W
		unsigned short nameid, amount;
		int index;

		index  = RBUFW(itemlist,i*6+0)-2;
		nameid = RBUFW(itemlist,i*6+2);
		amount = RBUFW(itemlist,i*6+4);

		if( i )
		{// duplicate check. as the client does this too, only malicious intent should be caught here
			ARR_FIND( 0, i, k, RBUFW(itemlist,k*6+0)-2 == index );
			if( k != i )
			{// duplicate
				ShowWarning("buyingstore_trade: Found duplicate item on selling list (prevnameid=%hu, prevamount=%hu, nameid=%hu, amount=%hu, account_id=%d, char_id=%d).\n",
					RBUFW(itemlist,k*6+2), RBUFW(itemlist,k*6+4), nameid, amount, sd->status.account_id, sd->status.char_id);
				clif_buyingstore_trade_failed_seller(sd, BUYINGSTORE_TRADE_SELLER_FAILED, nameid);
				return;
			}
		}

		if( index < 0 || index >= ARRAYLENGTH(sd->status.inventory) || sd->inventory_data[index] == NULL || sd->status.inventory[index].nameid != nameid || sd->status.inventory[index].amount < amount )
		{// invalid input
			clif_buyingstore_trade_failed_seller(sd, BUYINGSTORE_TRADE_SELLER_FAILED, nameid);
			return;
		}

		if( sd->status.inventory[index].expire_time || !itemdb_cantrade(&sd->status.inventory[index], pc_isGM(sd), pc_isGM(pl_sd)) || memcmp(sd->status.inventory[index].card, buyingstore_blankslots, sizeof(buyingstore_blankslots)) )
		{// non-tradable item
			clif_buyingstore_trade_failed_seller(sd, BUYINGSTORE_TRADE_SELLER_FAILED, nameid);
			return;
		}

		ARR_FIND( 0, pl_sd->buyingstore.slots, listidx, pl_sd->buyingstore.items[listidx].nameid == nameid );
		if( listidx == pl_sd->buyingstore.slots || pl_sd->buyingstore.items[listidx].amount == 0 )
		{// there is no such item or the buyer has already bought all of them
			clif_buyingstore_trade_failed_seller(sd, BUYINGSTORE_TRADE_SELLER_FAILED, nameid);
			return;
		}

		if( pl_sd->buyingstore.items[listidx].amount < amount )
		{// buyer does not need that much of the item
			clif_buyingstore_trade_failed_seller(sd, BUYINGSTORE_TRADE_SELLER_COUNT, nameid);
			return;
		}

		if( pc_checkadditem(pl_sd, nameid, amount) == ADDITEM_OVERAMOUNT )
		{// buyer does not have enough space for this item
			clif_buyingstore_trade_failed_seller(sd, BUYINGSTORE_TRADE_SELLER_FAILED, nameid);
			return;
		}

		if( amount*(unsigned int)sd->inventory_data[index]->weight > pl_sd->max_weight-weight )
		{// normally this is not supposed to happen, as the total weight is
		 // checked upon creation, but the buyer could have gained items
			clif_buyingstore_trade_failed_seller(sd, BUYINGSTORE_TRADE_SELLER_FAILED, nameid);
			return;
		}
		weight+= amount*sd->inventory_data[index]->weight;

		if( amount*pl_sd->buyingstore.items[listidx].price > pl_sd->buyingstore.zenylimit-zeny )
		{// buyer does not have enough zeny
			clif_buyingstore_trade_failed_seller(sd, BUYINGSTORE_TRADE_SELLER_ZENY, nameid);
			return;
		}
		zeny+= amount*pl_sd->buyingstore.items[listidx].price;
	}

	// process item list
	for( i = 0; i < count; i++ )
	{// itemlist: <index>.W <name id>.W <amount>.W
		unsigned short nameid, amount;
		int index;

		index  = RBUFW(itemlist,i*6+0)-2;
		nameid = RBUFW(itemlist,i*6+2);
		amount = RBUFW(itemlist,i*6+4);

		ARR_FIND( 0, pl_sd->buyingstore.slots, listidx, pl_sd->buyingstore.items[listidx].nameid == nameid );
		zeny = amount*pl_sd->buyingstore.items[listidx].price;

		// log
		if( log_config.enable_logs&LOG_BUYING_STORE )
		{
			log_pick_pc(sd, "B", nameid, -((int)amount), &sd->status.inventory[index]);
			log_pick_pc(pl_sd, "B", nameid, amount, &sd->status.inventory[index]);
		}
		if( log_config.zeny )
			log_zeny(sd, "B", pl_sd, zeny);

		// move item
		pc_additem(pl_sd, &sd->status.inventory[index], amount);
		pc_delitem(sd, index, amount, 1, 0);
		pl_sd->buyingstore.items[listidx].amount-= amount;

		// pay up
		pc_payzeny(pl_sd, zeny);
		pc_getzeny(sd, zeny);
		pl_sd->buyingstore.zenylimit-= zeny;

		// notify clients
		clif_buyingstore_delete_item(sd, index, amount, pl_sd->buyingstore.items[listidx].price);
		clif_buyingstore_update_item(pl_sd, nameid, amount);
	}

	// check whether or not there is still something to buy
	ARR_FIND( 0, pl_sd->buyingstore.slots, i, pl_sd->buyingstore.items[i].amount != 0 );
	if( i == pl_sd->buyingstore.slots )
	{// everything was bought
		clif_buyingstore_trade_failed_buyer(pl_sd, BUYINGSTORE_TRADE_BUYER_NO_ITEMS);
	}
	else if( pl_sd->buyingstore.zenylimit == 0 )
	{// zeny limit reached
		clif_buyingstore_trade_failed_buyer(pl_sd, BUYINGSTORE_TRADE_BUYER_ZENY);
	}
	else
	{// continue buying
		return;
	}

	// cannot continue buying
	buyingstore_close(pl_sd);

	// remove auto-trader
	if( pl_sd->state.autotrade )
	{
		map_quit(pl_sd);
	}
}


/// Checks if an item is being bought in given player's buying store.
bool buyingstore_search(struct map_session_data* sd, unsigned short nameid)
{
	unsigned int i;

	if( !sd->state.buyingstore )
	{// not buying
		return false;
	}

	ARR_FIND( 0, sd->buyingstore.slots, i, sd->buyingstore.items[i].nameid == nameid && sd->buyingstore.items[i].amount );
	if( i == sd->buyingstore.slots )
	{// not found
		return false;
	}

	return true;
}


/// Searches for all items in a buyingstore, that match given ids, price and possible cards.
/// @return Whether or not the search should be continued.
bool buyingstore_searchall(struct map_session_data* sd, const struct s_search_store_search* s)
{
	unsigned int i, idx;
	struct s_buyingstore_item* it;

	if( !sd->state.buyingstore )
	{// not buying
		return true;
	}

	for( idx = 0; idx < s->item_count; idx++ )
	{
		ARR_FIND( 0, sd->buyingstore.slots, i, sd->buyingstore.items[i].nameid == s->itemlist[idx] && sd->buyingstore.items[i].amount );
		if( i == sd->buyingstore.slots )
		{// not found
			continue;
		}
		it = &sd->buyingstore.items[i];

		if( s->min_price && s->min_price > (unsigned int)it->price )
		{// too low price
			continue;
		}

		if( s->max_price && s->max_price < (unsigned int)it->price )
		{// too high price
			continue;
		}

		if( s->card_count )
		{// ignore cards, as there cannot be any
			;
		}

		if( !searchstore_result(s->search_sd, sd->buyer_id, sd->status.account_id, sd->message, it->nameid, it->amount, it->price, buyingstore_blankslots, 0) )
		{// result set full
			return false;
		}
	}

	return true;
}