OpenTTD
newgrf_storage.cpp
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1 /* $Id: newgrf_storage.cpp 26482 2014-04-23 20:13:33Z rubidium $ */
2 
3 /*
4  * This file is part of OpenTTD.
5  * 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.
6  * 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.
7  * 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/>.
8  */
9 
12 #include "stdafx.h"
13 #include "newgrf_storage.h"
14 #include "core/pool_func.hpp"
15 #include "core/endian_func.hpp"
16 #include "debug.h"
17 #include <set>
18 
19 #include "safeguards.h"
20 
21 PersistentStoragePool _persistent_storage_pool("PersistentStorage");
23 
24 
26 
27 bool BasePersistentStorageArray::gameloop;
28 bool BasePersistentStorageArray::command;
29 bool BasePersistentStorageArray::testmode;
30 
34 BasePersistentStorageArray::~BasePersistentStorageArray()
35 {
36  _changed_storage_arrays->erase(this);
37 }
38 
46 {
47  _changed_storage_arrays->insert(storage);
48 }
49 
57 /* static */ void BasePersistentStorageArray::SwitchMode(PersistentStorageMode mode, bool ignore_prev_mode)
58 {
59  switch (mode) {
60  case PSM_ENTER_GAMELOOP:
61  assert(ignore_prev_mode || !gameloop);
62  assert(!command && !testmode);
63  gameloop = true;
64  break;
65 
66  case PSM_LEAVE_GAMELOOP:
67  assert(ignore_prev_mode || gameloop);
68  assert(!command && !testmode);
69  gameloop = false;
70  break;
71 
72  case PSM_ENTER_COMMAND:
73  assert((ignore_prev_mode || !command) && !testmode);
74  command = true;
75  break;
76 
77  case PSM_LEAVE_COMMAND:
78  assert(ignore_prev_mode || command);
79  command = false;
80  break;
81 
82  case PSM_ENTER_TESTMODE:
83  assert(!command && (ignore_prev_mode || !testmode));
84  testmode = true;
85  break;
86 
87  case PSM_LEAVE_TESTMODE:
88  assert(ignore_prev_mode || testmode);
89  testmode = false;
90  break;
91 
92  default: NOT_REACHED();
93  }
94 
95  /* Discard all temporary changes */
96  for (std::set<BasePersistentStorageArray*>::iterator it = _changed_storage_arrays->begin(); it != _changed_storage_arrays->end(); it++) {
97  DEBUG(desync, 1, "Discarding persistent storage changes: Feature %d, GrfID %08X, Tile %d", (*it)->feature, BSWAP32((*it)->grfid), (*it)->tile);
98  (*it)->ClearChanges();
99  }
100  _changed_storage_arrays->clear();
101 }