1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
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
|
/*
* The Mana Server
* Copyright (C) 2007-2010 The Mana World Development Team
*
* This file is part of The Mana Server.
*
* The Mana Server is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* any later version.
*
* The Mana Server is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with The Mana Server. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef GAMESERVER_TRADE_H
#define GAMESERVER_TRADE_H
#include <vector>
class Entity;
class Inventory;
class Trade
{
public:
/**
* Sets up a trade between two characters.
* Asks for an acknowledgment from the second one.
*/
Trade(Entity *, Entity *);
/**
* Cancels a trade by a given character (optional).
* Warns the other character the trade is cancelled.
* Takes care of cleaning afterwards.
*/
void cancel();
/**
* Requests a trade to start with given public ID.
* Continues the current trade if the ID is correct, cancels it
* otherwise.
* @return true if the current trade keeps going.
*/
bool request(Entity *, int);
/**
* Confirm the trade.
*/
void confirm(Entity *);
/*
* Agree to complete the trade
*/
void agree(Entity *c);
/**
* Adds some items to the trade.
*/
void addItem(Entity *, int slot, int amount);
/**
* Adds some money to the trade.
*/
void setMoney(Entity *, int amount);
private:
~Trade();
struct TradedItem
{
unsigned id;
unsigned slot;
int amount;
};
typedef std::vector< TradedItem > TradedItems;
/*
* See trade.cpp for doc on TradeStates
*/
enum TradeState
{
TRADE_INIT = 0,
TRADE_RUN,
TRADE_CONFIRM_WAIT,
TRADE_CONFIRMED,
TRADE_AGREE_WAIT
};
static bool perform(TradedItems items, Inventory &inv1, Inventory &inv2);
Entity *mChar1, *mChar2; /**< Characters involved. */
TradedItems mItems1, mItems2; /**< Traded items. */
int mMoney1, mMoney2; /**< Traded money. */
TradeState mState; /**< State of transaction. */
unsigned mCurrencyId; /**< The attribute to use as currency. */
};
#endif
|
