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
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
|
/*
* This file is part of OpenTTD.
* OpenTTD 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, version 2.
* OpenTTD 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 OpenTTD. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file misc_cmd.cpp Some misc functions that are better fitted in other files, but never got moved there... */
#include "stdafx.h"
#include "command_func.h"
#include "economy_func.h"
#include "cmd_helper.h"
#include "window_func.h"
#include "textbuf_gui.h"
#include "network/network.h"
#include "network/network_func.h"
#include "strings_func.h"
#include "company_func.h"
#include "company_gui.h"
#include "company_base.h"
#include "core/backup_type.hpp"
#include "table/strings.h"
#include "safeguards.h"
/* Make sure we can discard lower 2 bits of 64bit amount when passing it to Cmd[In|De]creaseLoan() */
static_assert((LOAN_INTERVAL & 3) == 0);
/**
* Increase the loan of your company.
* @param tile unused
* @param flags operation to perform
* @param p1 higher half of amount to increase the loan with, multitude of LOAN_INTERVAL. Only used when (p2 & 3) == 2.
* @param p2 (bit 2-31) - lower half of amount (lower 2 bits assumed to be 0)
* (bit 0-1) - when 0: loans LOAN_INTERVAL
* when 1: loans the maximum loan permitting money (press CTRL),
* when 2: loans the amount specified in p1 and p2
* @param text unused
* @return the cost of this operation or an error
*/
CommandCost CmdIncreaseLoan(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
{
Company *c = Company::Get(_current_company);
if (c->current_loan >= _economy.max_loan) {
SetDParam(0, _economy.max_loan);
return_cmd_error(STR_ERROR_MAXIMUM_PERMITTED_LOAN);
}
Money loan;
switch (p2 & 3) {
default: return CMD_ERROR; // Invalid method
case 0: // Take some extra loan
loan = LOAN_INTERVAL;
break;
case 1: // Take a loan as big as possible
loan = _economy.max_loan - c->current_loan;
break;
case 2: // Take the given amount of loan
loan = ((uint64)p1 << 32) | (p2 & 0xFFFFFFFC);
if (loan < LOAN_INTERVAL || c->current_loan + loan > _economy.max_loan || loan % LOAN_INTERVAL != 0) return CMD_ERROR;
break;
}
/* Overflow protection */
if (c->money + c->current_loan + loan < c->money) return CMD_ERROR;
if (flags & DC_EXEC) {
c->money += loan;
c->current_loan += loan;
InvalidateCompanyWindows(c);
}
return CommandCost(EXPENSES_OTHER);
}
/**
* Decrease the loan of your company.
* @param tile unused
* @param flags operation to perform
* @param p1 higher half of amount to decrease the loan with, multitude of LOAN_INTERVAL. Only used when (p2 & 3) == 2.
* @param p2 (bit 2-31) - lower half of amount (lower 2 bits assumed to be 0)
* (bit 0-1) - when 0: pays back LOAN_INTERVAL
* when 1: pays back the maximum loan permitting money (press CTRL),
* when 2: pays back the amount specified in p1 and p2
* @param text unused
* @return the cost of this operation or an error
*/
CommandCost CmdDecreaseLoan(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
{
Company *c = Company::Get(_current_company);
if (c->current_loan == 0) return_cmd_error(STR_ERROR_LOAN_ALREADY_REPAYED);
Money loan;
switch (p2 & 3) {
default: return CMD_ERROR; // Invalid method
case 0: // Pay back one step
loan = min(c->current_loan, (Money)LOAN_INTERVAL);
break;
case 1: // Pay back as much as possible
loan = max(min(c->current_loan, c->money), (Money)LOAN_INTERVAL);
loan -= loan % LOAN_INTERVAL;
break;
case 2: // Repay the given amount of loan
loan = ((uint64)p1 << 32) | (p2 & 0xFFFFFFFC);
if (loan % LOAN_INTERVAL != 0 || loan < LOAN_INTERVAL || loan > c->current_loan) return CMD_ERROR; // Invalid amount to loan
break;
}
if (c->money < loan) {
SetDParam(0, loan);
return_cmd_error(STR_ERROR_CURRENCY_REQUIRED);
}
if (flags & DC_EXEC) {
c->money -= loan;
c->current_loan -= loan;
InvalidateCompanyWindows(c);
}
return CommandCost();
}
/**
* In case of an unsafe unpause, we want the
* user to confirm that it might crash.
* @param w unused
* @param confirmed whether the user confirms his/her action
*/
static void AskUnsafeUnpauseCallback(Window *w, bool confirmed)
{
if (confirmed) {
DoCommandP(0, PM_PAUSED_ERROR, 0, CMD_PAUSE);
}
}
/**
* Pause/Unpause the game (server-only).
* Set or unset a bit in the pause mode. If pause mode is zero the game is
* unpaused. A bitset is used instead of a boolean value/counter to have
* more control over the game when saving/loading, etc.
* @param tile unused
* @param flags operation to perform
* @param p1 the pause mode to change
* @param p2 1 pauses, 0 unpauses this mode
* @param text unused
* @return the cost of this operation or an error
*/
CommandCost CmdPause(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
{
switch (p1) {
case PM_PAUSED_SAVELOAD:
case PM_PAUSED_ERROR:
case PM_PAUSED_NORMAL:
case PM_PAUSED_GAME_SCRIPT:
case PM_PAUSED_LINK_GRAPH:
break;
case PM_PAUSED_JOIN:
case PM_PAUSED_ACTIVE_CLIENTS:
if (!_networking) return CMD_ERROR;
break;
default: return CMD_ERROR;
}
if (flags & DC_EXEC) {
if (p1 == PM_PAUSED_NORMAL && _pause_mode & PM_PAUSED_ERROR) {
ShowQuery(
STR_NEWGRF_UNPAUSE_WARNING_TITLE,
STR_NEWGRF_UNPAUSE_WARNING,
nullptr,
AskUnsafeUnpauseCallback
);
} else {
PauseMode prev_mode = _pause_mode;
if (p2 == 0) {
_pause_mode = static_cast<PauseMode>(_pause_mode & (byte)~p1);
} else {
_pause_mode = static_cast<PauseMode>(_pause_mode | (byte)p1);
}
NetworkHandlePauseChange(prev_mode, (PauseMode)p1);
}
SetWindowDirty(WC_STATUS_BAR, 0);
SetWindowDirty(WC_MAIN_TOOLBAR, 0);
}
return CommandCost();
}
/**
* Change the financial flow of your company.
* @param tile unused
* @param flags operation to perform
* @param p1 the amount of money to receive (if positive), or spend (if negative)
* @param p2 unused
* @param text unused
* @return the cost of this operation or an error
*/
CommandCost CmdMoneyCheat(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
{
return CommandCost(EXPENSES_OTHER, -(int32)p1);
}
/**
* Change the bank bank balance of a company by inserting or removing money without affecting the loan.
* @param tile unused
* @param flags operation to perform
* @param p1 the amount of money to receive (if positive), or spend (if negative)
* @param p2 (bit 0-7) - the company ID.
* (bit 8-15) - the expenses type which should register the cost/income @see ExpensesType.
* @param text unused
* @return zero cost or an error
*/
CommandCost CmdChangeBankBalance(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
{
int32 delta = (int32)p1;
CompanyID company = (CompanyID) GB(p2, 0, 8);
ExpensesType expenses_type = Extract<ExpensesType, 8, 8>(p2);
if (!Company::IsValidID(company)) return CMD_ERROR;
if (expenses_type >= EXPENSES_END) return CMD_ERROR;
if (_current_company != OWNER_DEITY) return CMD_ERROR;
if (flags & DC_EXEC) {
/* Change company bank balance of company. */
Backup<CompanyID> cur_company(_current_company, company, FILE_LINE);
SubtractMoneyFromCompany(CommandCost(expenses_type, -delta));
cur_company.Restore();
}
/* This command doesn't cost anything for deity. */
CommandCost zero_cost(expenses_type, 0);
return zero_cost;
}
|
