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
|
/*
Minetest
Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
This program 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "nodemetadata.h"
#include "exceptions.h"
#include "gamedef.h"
#include "inventory.h"
#include "log.h"
#include "util/serialize.h"
#include "constants.h" // MAP_BLOCKSIZE
#include <sstream>
/*
NodeMetadata
*/
NodeMetadata::NodeMetadata(IItemDefManager *item_def_mgr):
m_stringvars(),
m_inventory(new Inventory(item_def_mgr))
{
}
NodeMetadata::~NodeMetadata()
{
delete m_inventory;
}
void NodeMetadata::serialize(std::ostream &os) const
{
int num_vars = m_stringvars.size();
writeU32(os, num_vars);
for (StringMap::const_iterator
it = m_stringvars.begin();
it != m_stringvars.end(); ++it) {
os << serializeString(it->first);
os << serializeLongString(it->second);
}
m_inventory->serialize(os);
}
void NodeMetadata::deSerialize(std::istream &is)
{
m_stringvars.clear();
int num_vars = readU32(is);
for(int i=0; i<num_vars; i++){
std::string name = deSerializeString(is);
std::string var = deSerializeLongString(is);
m_stringvars[name] = var;
}
m_inventory->deSerialize(is);
}
void NodeMetadata::clear()
{
m_stringvars.clear();
m_inventory->clear();
}
/*
NodeMetadataList
*/
void NodeMetadataList::serialize(std::ostream &os) const
{
/*
Version 0 is a placeholder for "nothing to see here; go away."
*/
if(m_data.empty()){
writeU8(os, 0); // version
return;
}
writeU8(os, 1); // version
u16 count = m_data.size();
writeU16(os, count);
for(std::map<v3s16, NodeMetadata*>::const_iterator
i = m_data.begin();
i != m_data.end(); ++i)
{
v3s16 p = i->first;
NodeMetadata *data = i->second;
u16 p16 = p.Z * MAP_BLOCKSIZE * MAP_BLOCKSIZE + p.Y * MAP_BLOCKSIZE + p.X;
writeU16(os, p16);
data->serialize(os);
}
}
void NodeMetadataList::deSerialize(std::istream &is, IItemDefManager *item_def_mgr)
{
clear();
u8 version = readU8(is);
if (version == 0) {
// Nothing
return;
}
if (version != 1) {
std::string err_str = std::string(FUNCTION_NAME)
+ ": version " + itos(version) + " not supported";
infostream << err_str << std::endl;
throw SerializationError(err_str);
}
u16 count = readU16(is);
for (u16 i=0; i < count; i++) {
u16 p16 = readU16(is);
v3s16 p;
p.Z = p16 / MAP_BLOCKSIZE / MAP_BLOCKSIZE;
p16 &= MAP_BLOCKSIZE * MAP_BLOCKSIZE - 1;
p.Y = p16 / MAP_BLOCKSIZE;
p16 &= MAP_BLOCKSIZE - 1;
p.X = p16;
if (m_data.find(p) != m_data.end()) {
warningstream<<"NodeMetadataList::deSerialize(): "
<<"already set data at position"
<<"("<<p.X<<","<<p.Y<<","<<p.Z<<"): Ignoring."
<<std::endl;
continue;
}
NodeMetadata *data = new NodeMetadata(item_def_mgr);
data->deSerialize(is);
m_data[p] = data;
}
}
NodeMetadataList::~NodeMetadataList()
{
clear();
}
std::vector<v3s16> NodeMetadataList::getAllKeys()
{
std::vector<v3s16> keys;
std::map<v3s16, NodeMetadata *>::const_iterator it;
for (it = m_data.begin(); it != m_data.end(); ++it)
keys.push_back(it->first);
return keys;
}
NodeMetadata *NodeMetadataList::get(v3s16 p)
{
std::map<v3s16, NodeMetadata *>::const_iterator n = m_data.find(p);
if (n == m_data.end())
return NULL;
return n->second;
}
void NodeMetadataList::remove(v3s16 p)
{
NodeMetadata *olddata = get(p);
if (olddata) {
delete olddata;
m_data.erase(p);
}
}
void NodeMetadataList::set(v3s16 p, NodeMetadata *d)
{
remove(p);
m_data.insert(std::make_pair(p, d));
}
void NodeMetadataList::clear()
{
std::map<v3s16, NodeMetadata*>::iterator it;
for (it = m_data.begin(); it != m_data.end(); ++it) {
delete it->second;
}
m_data.clear();
}
std::string NodeMetadata::getString(const std::string &name,
unsigned short recursion) const
{
StringMap::const_iterator it = m_stringvars.find(name);
if (it == m_stringvars.end())
return "";
return resolveString(it->second, recursion);
}
void NodeMetadata::setString(const std::string &name, const std::string &var)
{
if (var.empty()) {
m_stringvars.erase(name);
} else {
m_stringvars[name] = var;
}
}
std::string NodeMetadata::resolveString(const std::string &str,
unsigned short recursion) const
{
if (recursion > 1) {
return str;
}
if (str.substr(0, 2) == "${" && str[str.length() - 1] == '}') {
return getString(str.substr(2, str.length() - 3), recursion + 1);
}
return str;
}
|
