advtrains/models/advtrains_dtrack_vst32.obj


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
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

# Blender v2.78 (sub 0) OBJ File: 'rail_redo.blend'
# www.blender.org
o dtrack_vst32_Cube.028
v 0.753760 -0.166667 -0.500000
v 0.753760 -0.166667 0.500000
v 0.753760 0.166667 0.500000
v -0.753760 -0.166667 -0.500000
v -0.753760 -0.166667 0.500000
v -0.753760 0.166667 0.500000
v 0.329165 0.025292 0.171599
v 0.329165 0.189353 0.171599
v 0.329165 -0.089107 -0.171599
v 0.329165 0.074954 -0.171599
v 0.462280 0.025292 0.171599
v 0.462280 0.189353 0.171599
v 0.462280 -0.089107 -0.171599
v 0.462280 0.074954 -0.171599
v 0.412289 0.206667 0.500000
v 0.412289 -0.126667 -0.500000
v 0.560528 -0.126667 -0.500000
v 0.560528 0.206667 0.500000
v 0.474055 0.226667 0.500000
v 0.474055 -0.106667 -0.500000
v 0.498762 -0.106667 -0.500000
v 0.498762 0.226667 0.500000
v 0.474055 0.276667 0.500000
v 0.474055 -0.056667 -0.500000
v 0.498762 -0.056667 -0.500000
v 0.498762 0.276667 0.500000
v 0.529645 -0.051667 -0.500000
v 0.529645 0.281667 0.500000
v 0.443172 0.281667 0.500000
v 0.443172 -0.051667 -0.500000
v 0.529645 -0.026667 -0.500000
v 0.529645 0.306667 0.500000
v 0.443172 0.306667 0.500000
v 0.443172 -0.026667 -0.500000
v 0.741194 0.135000 0.435000
v -0.741194 0.135000 0.435000
v -0.741194 0.095000 0.315000
v 0.741194 0.095000 0.315000
v 0.741193 0.185000 0.435000
v -0.741194 0.185000 0.435000
v -0.741194 0.145000 0.315000
v 0.741194 0.145000 0.315000
v -0.011733 3.045853 0.500000
v -0.011732 2.712519 -0.500001
v -0.011733 3.067481 0.500000
v -0.011732 2.734147 -0.500000
v 0.011732 2.712519 -0.500000
v 0.011732 3.045853 0.500000
v 0.011732 2.734147 -0.500000
v 0.011732 3.067481 0.500000
v -0.412289 -0.126667 -0.500000
v -0.412289 0.206667 0.500000
v -0.560528 0.206667 0.500000
v -0.560528 -0.126667 -0.500000
v -0.474055 -0.106667 -0.500000
v -0.474055 0.226667 0.500000
v -0.498762 0.226667 0.500000
v -0.498762 -0.106667 -0.500000
v -0.474055 -0.056667 -0.500000
v -0.474055 0.276667 0.500000
v -0.498762 0.276667 0.500000
v -0.498762 -0.056667 -0.500000
v -0.529645 0.281667 0.500000
v -0.529645 -0.051667 -0.500000
v -0.443172 -0.051667 -0.500000
v -0.443172 0.281667 0.500000
v -0.529645 0.306667 0.500000
v -0.529645 -0.026667 -0.500000
v -0.443172 -0.026667 -0.500000
v -0.443172 0.306667 0.500000
v -0.741194 -0.155000 -0.435000
v 0.741194 -0.155000 -0.435000
v 0.741194 -0.115000 -0.315000
v -0.741194 -0.115000 -0.315000
v -0.741193 -0.105000 -0.435000
v 0.741194 -0.105000 -0.435000
v 0.741194 -0.065000 -0.315000
v -0.741194 -0.065000 -0.315000
v 0.741194 0.052621 0.187862
v -0.741194 0.052621 0.187862
v -0.741194 0.012621 0.067862
v 0.741194 0.012621 0.067862
v 0.741193 0.102621 0.187862
v -0.741194 0.102621 0.187862
v -0.741194 0.062621 0.067862
v 0.741194 0.062621 0.067862
v -0.741194 -0.072621 -0.187862
v 0.741194 -0.072621 -0.187862
v 0.741194 -0.032621 -0.067862
v -0.741194 -0.032621 -0.067862
v -0.741193 -0.022621 -0.187862
v 0.741194 -0.022621 -0.187862
v 0.741194 0.017379 -0.067862
v -0.741194 0.017379 -0.067862
v -0.329165 0.025293 0.171599
v -0.329165 0.189353 0.171599
v -0.329165 -0.089107 -0.171599
v -0.329165 0.074954 -0.171599
v -0.462280 0.025293 0.171599
v -0.462280 0.189353 0.171599
v -0.462280 -0.089107 -0.171599
v -0.462280 0.074954 -0.171599
v 0.753760 -0.500000 0.500000
v 0.753760 -0.500000 -0.500000
v -0.753760 -0.500000 0.500000
v -0.753760 -0.500000 -0.500000
vt 0.7427 0.1169
vt 0.7427 0.3317
vt 0.6400 0.3317
vt 0.6400 0.1169
vt 0.8260 0.3317
vt 0.8260 0.4343
vt 0.7427 0.4343
vt 0.8260 0.1169
vt 0.7427 0.0142
vt 0.8260 0.0142
vt 0.5691 0.2971
vt 0.5691 0.9229
vt 0.5378 0.9229
vt 0.5378 0.2971
vt 0.3413 0.2971
vt 0.3819 0.2971
vt 0.3819 0.9229
vt 0.3413 0.9229
vt 0.4291 0.9855
vt 0.4678 0.9730
vt 0.4833 0.9730
vt 0.5219 0.9855
vt 0.6097 0.9229
vt 0.6097 0.2971
vt 0.4678 0.2470
vt 0.4291 0.2345
vt 0.5219 0.2345
vt 0.4833 0.2470
vt 0.4833 0.2783
vt 0.4678 0.2783
vt 0.4132 0.2971
vt 0.4132 0.9229
vt 0.4678 0.9417
vt 0.4833 0.9417
vt 0.5182 0.9229
vt 0.5182 0.2971
vt 0.4328 0.2971
vt 0.4328 0.9229
vt 0.5026 0.9229
vt 0.5026 0.2971
vt 0.4485 0.2971
vt 0.4485 0.9229
vt 0.5026 0.2814
vt 0.4485 0.2814
vt 0.4485 0.9386
vt 0.5026 0.9386
vt 0.9588 0.9625
vt 0.8837 0.9625
vt 0.8837 0.0348
vt 0.9588 0.0348
vt 0.9901 0.9625
vt 0.9901 0.0348
vt 0.9588 0.0035
vt 0.8837 0.0035
vt 0.8524 0.0348
vt 0.8524 0.9625
vt 0.9588 0.9938
vt 0.8837 0.9938
vt 0.6554 0.3627
vt 0.6690 0.3627
vt 0.6690 0.9885
vt 0.6554 0.9885
vt 0.6972 0.9885
vt 0.6837 0.9885
vt 0.6837 0.3627
vt 0.6972 0.3627
vt 0.7119 0.3627
vt 0.7119 0.9885
vt 0.5691 0.2971
vt 0.5691 0.9229
vt 0.5378 0.9229
vt 0.5378 0.2971
vt 0.3413 0.2971
vt 0.3819 0.2971
vt 0.3819 0.9229
vt 0.3413 0.9229
vt 0.4291 0.9855
vt 0.4678 0.9730
vt 0.4833 0.9730
vt 0.5219 0.9855
vt 0.6097 0.9229
vt 0.6097 0.2971
vt 0.4678 0.2470
vt 0.4291 0.2345
vt 0.5219 0.2345
vt 0.4833 0.2470
vt 0.4833 0.2783
vt 0.4678 0.2783
vt 0.4132 0.2971
vt 0.4132 0.9229
vt 0.4678 0.9417
vt 0.4833 0.9417
vt 0.5182 0.9229
vt 0.5182 0.2971
vt 0.4328 0.2971
vt 0.4328 0.9229
vt 0.5026 0.9229
vt 0.5026 0.2971
vt 0.4485 0.2971
vt 0.4485 0.9229
vt 0.5026 0.2814
vt 0.4485 0.2814
vt 0.4485 0.9386
vt 0.5026 0.9386
vt 0.9588 0.9625
vt 0.8837 0.9625
vt 0.8837 0.0348
vt 0.9588 0.0348
vt 0.9901 0.9625
vt 0.9901 0.0348
vt 0.9588 0.0035
vt 0.8837 0.0035
vt 0.8524 0.0348
vt 0.8524 0.9625
vt 0.9588 0.9938
vt 0.8837 0.9938
vt 0.9588 0.9625
vt 0.8837 0.9625
vt 0.8837 0.0348
vt 0.9588 0.0348
vt 0.9901 0.9625
vt 0.9901 0.0348
vt 0.9588 0.0035
vt 0.8837 0.0035
vt 0.8524 0.0348
vt 0.8524 0.9625
vt 0.9588 0.9938
vt 0.8837 0.9938
vt 0.9588 0.9625
vt 0.8837 0.9625
vt 0.8837 0.0348
vt 0.9588 0.0348
vt 0.9901 0.9625
vt 0.9901 0.0348
vt 0.9588 0.0035
vt 0.8837 0.0035
vt 0.8524 0.0348
vt 0.8524 0.9625
vt 0.9588 0.9938
vt 0.8837 0.9938
vt 0.7427 0.1169
vt 0.6400 0.1169
vt 0.6400 0.3317
vt 0.7427 0.3317
vt 0.7427 0.4343
vt 0.8260 0.4343
vt 0.8260 0.3317
vt 0.8260 0.1169
vt 0.8260 0.0142
vt 0.7427 0.0142
vt 1.2169 -0.0660
vt -0.3162 -0.0660
vt -0.3162 -0.4050
vt 1.2169 -0.4050
vt -0.3102 0.3256
vt 1.2229 0.3256
vt 1.2229 0.6646
vt -0.3102 0.6646
vt 1.2169 1.0060
vt 1.5385 0.0412
vt -0.3162 1.0060
vt -0.6378 0.0412
vt -0.3132 1.0050
vt -0.3132 -0.0119
vt 1.2199 -0.0119
vt 1.2199 1.0050
vt -0.3075 0.6587
vt 0.7095 0.6587
vt 0.7095 0.9977
vt -0.3075 0.9977
vt 1.2229 1.0022
vt -0.3102 1.0022
vt -0.3102 0.6632
vt 1.2229 0.6632
vt 0.7067 0.6635
vt -0.3102 0.6635
vt -0.3102 0.3245
vt 0.7067 0.3245
vn -1.0000 0.0000 -0.0000
vn 0.0000 0.0000 -1.0000
vn -0.0000 0.0000 1.0000
vn 0.0000 0.9487 -0.3162
vn 1.0000 0.0000 0.0000
vn -0.2936 0.9069 -0.3023
vn 0.2936 0.9069 -0.3023
vn 0.1518 -0.9377 0.3126
vn -0.1518 -0.9377 0.3126
vn 0.0000 -0.9487 0.3162
vn 0.0000 -1.0000 0.0000
g dtrack_vst32_Cube.028_SlopeRailMaterial
s off
f 8/1/1 10/2/1 9/3/1 7/4/1
f 10/2/2 14/5/2 13/6/2 9/7/2
f 12/8/3 8/1/3 7/9/3 11/10/3
f 12/8/4 14/5/4 10/2/4 8/1/4
f 22/11/5 21/12/5 25/13/5 26/14/5
f 15/15/6 19/16/6 20/17/6 16/18/6
f 16/19/2 20/20/2 21/21/2 17/22/2
f 17/23/7 21/12/7 22/11/7 18/24/7
f 19/25/3 15/26/3 18/27/3 22/28/3
f 26/29/3 23/30/3 19/25/3 22/28/3
f 19/16/1 23/31/1 24/32/1 20/17/1
f 21/21/2 20/20/2 24/33/2 25/34/2
f 26/14/8 25/13/8 27/35/8 28/36/8
f 24/32/9 23/31/9 29/37/9 30/38/9
f 28/36/5 27/35/5 31/39/5 32/40/5
f 30/38/1 29/37/1 33/41/1 34/42/1
f 31/39/4 34/42/4 33/41/4 32/40/4
f 23/30/3 26/29/3 28/43/3 32/40/3 33/41/3 29/44/3
f 24/33/2 30/45/2 34/42/2 31/39/2 27/46/2 25/34/2
f 39/47/4 42/48/4 41/49/4 40/50/4
f 35/51/3 39/47/3 40/50/3 36/52/3
f 36/53/1 40/50/1 41/49/1 37/54/1
f 37/55/2 41/49/2 42/48/2 38/56/2
f 39/47/5 35/57/5 38/58/5 42/48/5
f 43/59/1 45/60/1 46/61/1 44/62/1
f 47/63/5 49/64/5 50/65/5 48/66/5
f 43/67/10 44/68/10 47/63/10 48/66/10
f 45/60/4 50/65/4 49/64/4 46/61/4
f 58/69/1 57/70/1 61/71/1 62/72/1
f 51/73/7 55/74/7 56/75/7 52/76/7
f 52/77/3 56/78/3 57/79/3 53/80/3
f 53/81/6 57/70/6 58/69/6 54/82/6
f 55/83/2 51/84/2 54/85/2 58/86/2
f 62/87/2 59/88/2 55/83/2 58/86/2
f 55/74/5 59/89/5 60/90/5 56/75/5
f 57/79/3 56/78/3 60/91/3 61/92/3
f 62/72/9 61/71/9 63/93/9 64/94/9
f 60/90/8 59/89/8 65/95/8 66/96/8
f 64/94/1 63/93/1 67/97/1 68/98/1
f 66/96/5 65/95/5 69/99/5 70/100/5
f 67/97/4 70/100/4 69/99/4 68/98/4
f 59/88/2 62/87/2 64/101/2 68/98/2 69/99/2 65/102/2
f 60/91/3 66/103/3 70/100/3 67/97/3 63/104/3 61/92/3
f 75/105/4 78/106/4 77/107/4 76/108/4
f 71/109/2 75/105/2 76/108/2 72/110/2
f 72/111/5 76/108/5 77/107/5 73/112/5
f 73/113/3 77/107/3 78/106/3 74/114/3
f 75/105/1 71/115/1 74/116/1 78/106/1
f 83/117/4 86/118/4 85/119/4 84/120/4
f 79/121/3 83/117/3 84/120/3 80/122/3
f 80/123/1 84/120/1 85/119/1 81/124/1
f 81/125/2 85/119/2 86/118/2 82/126/2
f 83/117/5 79/127/5 82/128/5 86/118/5
f 91/129/4 94/130/4 93/131/4 92/132/4
f 87/133/2 91/129/2 92/132/2 88/134/2
f 88/135/5 92/132/5 93/131/5 89/136/5
f 89/137/3 93/131/3 94/130/3 90/138/3
f 91/129/1 87/139/1 90/140/1 94/130/1
f 96/141/5 95/142/5 97/143/5 98/144/5
f 98/144/2 97/145/2 101/146/2 102/147/2
f 100/148/3 99/149/3 95/150/3 96/141/3
f 100/148/4 96/141/4 98/144/4 102/147/4
g dtrack_vst32_Cube.028_SlopeGravelMaterial
f 3/151/3 6/152/3 5/153/3 2/154/3
f 4/155/2 1/156/2 104/157/2 106/158/2
f 1/159/5 3/151/5 2/160/5
f 6/152/1 4/161/1 5/162/1
f 4/161/4 6/152/4 3/151/4 1/159/4
f 104/163/11 103/164/11 105/165/11 106/166/11
f 5/167/1 4/168/1 106/169/1 105/170/1
f 2/171/3 5/172/3 105/173/3 103/174/3
f 1/175/5 2/176/5 103/177/5 104/178/5
/*
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 "settings.h"
#include "irrlichttypes_bloated.h"
#include "exceptions.h"
#include "threading/mutex_auto_lock.h"
#include "util/strfnd.h"
#include <iostream>
#include <fstream>
#include <sstream>
#include "debug.h"
#include "log.h"
#include "util/serialize.h"
#include "filesys.h"
#include "noise.h"
#include <cctype>
#include <algorithm>

static Settings main_settings;
Settings *g_settings = &main_settings;
std::string g_settings_path;

Settings::~Settings()
{
	clear();
}


Settings & Settings::operator += (const Settings &other)
{
	update(other);

	return *this;
}


Settings & Settings::operator = (const Settings &other)
{
	if (&other == this)
		return *this;

	MutexAutoLock lock(m_mutex);
	MutexAutoLock lock2(other.m_mutex);

	clearNoLock();
	updateNoLock(other);

	return *this;
}


bool Settings::checkNameValid(const std::string &name)
{
	bool valid = name.find_first_of("=\"{}#") == std::string::npos;
	if (valid) valid = trim(name) == name;
	if (!valid) {
		errorstream << "Invalid setting name \"" << name << "\""
			<< std::endl;
		return false;
	}
	return true;
}


bool Settings::checkValueValid(const std::string &value)
{
	if (value.substr(0, 3) == "\"\"\"" ||
		value.find("\n\"\"\"") != std::string::npos) {
		errorstream << "Invalid character sequence '\"\"\"' found in"
			" setting value!" << std::endl;
		return false;
	}
	return true;
}

std::string Settings::getMultiline(std::istream &is, size_t *num_lines)
{
	size_t lines = 1;
	std::string value;
	std::string line;

	while (is.good()) {
		lines++;
		std::getline(is, line);
		if (line == "\"\"\"")
			break;
		value += line;
		value.push_back('\n');
	}

	size_t len = value.size();
	if (len)
		value.erase(len - 1);

	if (num_lines)
		*num_lines = lines;

	return value;
}


bool Settings::readConfigFile(const char *filename)
{
	std::ifstream is(filename);
	if (!is.good())
		return false;

	return parseConfigLines(is, "");
}


bool Settings::parseConfigLines(std::istream &is, const std::string &end)
{
	MutexAutoLock lock(m_mutex);

	std::string line, name, value;

	while (is.good()) {
		std::getline(is, line);
		SettingsParseEvent event = parseConfigObject(line, end, name, value);

		switch (event) {
		case SPE_NONE:
		case SPE_INVALID:
		case SPE_COMMENT:
			break;
		case SPE_KVPAIR:
			m_settings[name] = SettingsEntry(value);
			break;
		case SPE_END:
			return true;
		case SPE_GROUP: {
			Settings *group = new Settings;
			if (!group->parseConfigLines(is, "}")) {
				delete group;
				return false;
			}
			m_settings[name] = SettingsEntry(group);
			break;
		}
		case SPE_MULTILINE:
			m_settings[name] = SettingsEntry(getMultiline(is));
			break;
		}
	}

	return end.empty();
}


void Settings::writeLines(std::ostream &os, u32 tab_depth) const
{
	MutexAutoLock lock(m_mutex);

	for (const auto &setting_it : m_settings)
		printEntry(os, setting_it.first, setting_it.second, tab_depth);
}


void Settings::printEntry(std::ostream &os, const std::string &name,
	const SettingsEntry &entry, u32 tab_depth)
{
	for (u32 i = 0; i != tab_depth; i++)
		os << "\t";

	if (entry.is_group) {
		os << name << " = {\n";

		entry.group->writeLines(os, tab_depth + 1);

		for (u32 i = 0; i != tab_depth; i++)
			os << "\t";
		os << "}\n";
	} else {
		os << name << " = ";

		if (entry.value.find('\n') != std::string::npos)
			os << "\"\"\"\n" << entry.value << "\n\"\"\"\n";
		else
			os << entry.value << "\n";
	}
}


bool Settings::updateConfigObject(std::istream &is, std::ostream &os,
	const std::string &end, u32 tab_depth)
{
	SettingEntries::const_iterator it;
	std::set<std::string> present_entries;
	std::string line, name, value;
	bool was_modified = false;
	bool end_found = false;

	// Add any settings that exist in the config file with the current value
	// in the object if existing
	while (is.good() && !end_found) {
		std::getline(is, line);
		SettingsParseEvent event = parseConfigObject(line, end, name, value);

		switch (event) {
		case SPE_END:
			os << line << (is.eof() ? "" : "\n");
			end_found = true;
			break;
		case SPE_MULTILINE:
			value = getMultiline(is);
			/* FALLTHROUGH */
		case SPE_KVPAIR:
			it = m_settings.find(name);
			if (it != m_settings.end() &&
				(it->second.is_group || it->second.value != value)) {
				printEntry(os, name, it->second, tab_depth);
				was_modified = true;
			} else {
				os << line << "\n";
				if (event == SPE_MULTILINE)
					os << value << "\n\"\"\"\n";
			}
			present_entries.insert(name);
			break;
		case SPE_GROUP:
			it = m_settings.find(name);
			if (it != m_settings.end() && it->second.is_group) {
				os << line << "\n";
				sanity_check(it->second.group != NULL);
				was_modified |= it->second.group->updateConfigObject(is, os,
					"}", tab_depth + 1);
			} else {
				printEntry(os, name, it->second, tab_depth);
				was_modified = true;
			}
			present_entries.insert(name);
			break;
		default:
			os << line << (is.eof() ? "" : "\n");
			break;
		}
	}

	// Add any settings in the object that don't exist in the config file yet
	for (it = m_settings.begin(); it != m_settings.end(); ++it) {
		if (present_entries.find(it->first) != present_entries.end())
			continue;

		printEntry(os, it->first, it->second, tab_depth);
		was_modified = true;
	}

	return was_modified;
}


bool Settings::updateConfigFile(const char *filename)
{
	MutexAutoLock lock(m_mutex);

	std::ifstream is(filename);
	std::ostringstream os(std::ios_base::binary);

	bool was_modified = updateConfigObject(is, os, "");
	is.close();

	if (!was_modified)
		return true;

	if (!fs::safeWriteToFile(filename, os.str())) {
		errorstream << "Error writing configuration file: \""
			<< filename << "\"" << std::endl;
		return false;
	}

	return true;
}


bool Settings::parseCommandLine(int argc, char *argv[],
		std::map<std::string, ValueSpec> &allowed_options)
{
	int nonopt_index = 0;
	for (int i = 1; i < argc; i++) {
		std::string arg_name = argv[i];
		if (arg_name.substr(0, 2) != "--") {
			// If option doesn't start with -, read it in as nonoptX
			if (arg_name[0] != '-'){
				std::string name = "nonopt";
				name += itos(nonopt_index);
				set(name, arg_name);
				nonopt_index++;
				continue;
			}
			errorstream << "Invalid command-line parameter \""
					<< arg_name << "\": --<option> expected." << std::endl;
			return false;
		}

		std::string name = arg_name.substr(2);

		std::map<std::string, ValueSpec>::iterator n;
		n = allowed_options.find(name);
		if (n == allowed_options.end()) {
			errorstream << "Unknown command-line parameter \""
					<< arg_name << "\"" << std::endl;
			return false;
		}

		ValueType type = n->second.type;

		std::string value;

		if (type == VALUETYPE_FLAG) {
			value = "true";
		} else {
			if ((i + 1) >= argc) {
				errorstream << "Invalid command-line parameter \""
						<< name << "\": missing value" << std::endl;
				return false;
			}
			value = argv[++i];
		}

		set(name, value);
	}

	return true;
}


/***********
 * Getters *
 ***********/


const SettingsEntry &Settings::getEntry(const std::string &name) const
{
	MutexAutoLock lock(m_mutex);

	SettingEntries::const_iterator n;
	if ((n = m_settings.find(name)) == m_settings.end()) {
		if ((n = m_defaults.find(name)) == m_defaults.end())
			throw SettingNotFoundException("Setting [" + name + "] not found.");
	}
	return n->second;
}


const SettingsEntry &Settings::getEntryDefault(const std::string &name) const
{
	MutexAutoLock lock(m_mutex);

	SettingEntries::const_iterator n;
	if ((n = m_defaults.find(name)) == m_defaults.end()) {
		throw SettingNotFoundException("Setting [" + name + "] not found.");
	}
	return n->second;
}


Settings *Settings::getGroup(const std::string &name) const
{
	const SettingsEntry &entry = getEntry(name);
	if (!entry.is_group)
		throw SettingNotFoundException("Setting [" + name + "] is not a group.");
	return entry.group;
}


const std::string &Settings::get(const std::string &name) const
{
	const SettingsEntry &entry = getEntry(name);
	if (entry.is_group)
		throw SettingNotFoundException("Setting [" + name + "] is a group.");
	return entry.value;
}


const std::string &Settings::getDefault(const std::string &name) const
{
	const SettingsEntry &entry = getEntryDefault(name);
	if (entry.is_group)
		throw SettingNotFoundException("Setting [" + name + "] is a group.");
	return entry.value;
}


bool Settings::getBool(const std::string &name) const
{
	return is_yes(get(name));
}


u16 Settings::getU16(const std::string &name) const
{
	return stoi(get(name), 0, 65535);
}


s16 Settings::getS16(const std::string &name) const
{
	return stoi(get(name), -32768, 32767);
}


u32 Settings::getU32(const std::string &name) const
{
	return (u32) stoi(get(name));
}

s32 Settings::getS32(const std::string &name) const
{
	return stoi(get(name));
}


float Settings::getFloat(const std::string &name) const
{
	return stof(get(name));
}


u64 Settings::getU64(const std::string &name) const
{
	u64 value = 0;
	std::string s = get(name);
	std::istringstream ss(s);
	ss >> value;
	return value;
}


v2f Settings::getV2F(const std::string &name) const
{
	v2f value;
	Strfnd f(get(name));
	f.next("(");
	value.X = stof(f.next(","));
	value.Y = stof(f.next(")"));
	return value;
}


v3f Settings::getV3F(const std::string &name) const
{
	v3f value;
	Strfnd f(get(name));
	f.next("(");
	value.X = stof(f.next(","));
	value.Y = stof(f.next(","));
	value.Z = stof(f.next(")"));
	return value;
}


u32 Settings::getFlagStr(const std::string &name, const FlagDesc *flagdesc,
	u32 *flagmask) const
{
	std::string val = get(name);
	return std::isdigit(val[0])
		? stoi(val)
		: readFlagString(val, flagdesc, flagmask);
}


// N.B. if getStruct() is used to read a non-POD aggregate type,
// the behavior is undefined.
bool Settings::getStruct(const std::string &name, const std::string &format,
	void *out, size_t olen) const
{
	std::string valstr;

	try {
		valstr = get(name);
	} catch (SettingNotFoundException &e) {
		return false;
	}

	if (!deSerializeStringToStruct(valstr, format, out, olen))
		return false;

	return true;
}


bool Settings::getNoiseParams(const std::string &name, NoiseParams &np) const
{
	return getNoiseParamsFromGroup(name, np) || getNoiseParamsFromValue(name, np);
}


bool Settings::getNoiseParamsFromValue(const std::string &name,
	NoiseParams &np) const
{
	std::string value;

	if (!getNoEx(name, value))
		return false;

	Strfnd f(value);

	np.offset   = stof(f.next(","));
	np.scale    = stof(f.next(","));
	f.next("(");
	np.spread.X = stof(f.next(","));
	np.spread.Y = stof(f.next(","));
	np.spread.Z = stof(f.next(")"));
	f.next(",");
	np.seed     = stoi(f.next(","));
	np.octaves  = stoi(f.next(","));
	np.persist  = stof(f.next(","));

	std::string optional_params = f.next("");
	if (!optional_params.empty())
		np.lacunarity = stof(optional_params);

	return true;
}


bool Settings::getNoiseParamsFromGroup(const std::string &name,
	NoiseParams &np) const
{
	Settings *group = NULL;

	if (!getGroupNoEx(name, group))
		return false;

	group->getFloatNoEx("offset",      np.offset);
	group->getFloatNoEx("scale",       np.scale);
	group->getV3FNoEx("spread",        np.spread);
	group->getS32NoEx("seed",          np.seed);
	group->getU16NoEx("octaves",       np.octaves);
	group->getFloatNoEx("persistence", np.persist);
	group->getFloatNoEx("lacunarity",  np.lacunarity);

	np.flags = 0;
	if (!group->getFlagStrNoEx("flags", np.flags, flagdesc_noiseparams))
		np.flags = NOISE_FLAG_DEFAULTS;

	return true;
}


bool Settings::exists(const std::string &name) const
{
	MutexAutoLock lock(m_mutex);

	return (m_settings.find(name) != m_settings.end() ||
		m_defaults.find(name) != m_defaults.end());
}


std::vector<std::string> Settings::getNames() const
{
	std::vector<std::string> names;
	for (const auto &settings_it : m_settings) {
		names.push_back(settings_it.first);
	}
	return names;
}


/***************************************
 * Getters that don't throw exceptions *
 ***************************************/

bool Settings::getEntryNoEx(const std::string &name, SettingsEntry &val) const
{
	try {
		val = getEntry(name);
		return true;
	} catch (SettingNotFoundException &e) {
		return false;
	}
}


bool Settings::getEntryDefaultNoEx(const std::string &name, SettingsEntry &val) const
{
	try {
		val = getEntryDefault(name);
		return true;
	} catch (SettingNotFoundException &e) {
		return false;
	}
}


bool Settings::getGroupNoEx(const std::string &name, Settings *&val) const
{
	try {
		val = getGroup(name);
		return true;
	} catch (SettingNotFoundException &e) {
		return false;
	}
}


bool Settings::getNoEx(const std::string &name, std::string &val) const
{
	try {
		val = get(name);
		return true;
	} catch (SettingNotFoundException &e) {
		return false;
	}
}


bool Settings::getDefaultNoEx(const std::string &name, std::string &val) const
{
	try {
		val = getDefault(name);
		return true;
	} catch (SettingNotFoundException &e) {
		return false;
	}
}


bool Settings::getFlag(const std::string &name) const
{
	try {
		return getBool(name);
	} catch(SettingNotFoundException &e) {
		return false;
	}
}


bool Settings::getFloatNoEx(const std::string &name, float &val) const
{
	try {
		val = getFloat(name);
		return true;
	} catch (SettingNotFoundException &e) {
		return false;
	}
}


bool Settings::getU16NoEx(const std::string &name, u16 &val) const
{
	try {
		val = getU16(name);
		return true;
	} catch (SettingNotFoundException &e) {
		return false;
	}
}


bool Settings::getS16NoEx(const std::string &name, s16 &val) const
{
	try {
		val = getS16(name);
		return true;
	} catch (SettingNotFoundException &e) {
		return false;
	}
}


bool Settings::getS32NoEx(const std::string &name, s32 &val) const
{
	try {
		val = getS32(name);
		return true;
	} catch (SettingNotFoundException &e) {
		return false;
	}
}


bool Settings::getU64NoEx(const std::string &name, u64 &val) const
{
	try {
		val = getU64(name);
		return true;
	} catch (SettingNotFoundException &e) {
		return false;
	}
}


bool Settings::getV2FNoEx(const std::string &name, v2f &val) const
{
	try {
		val = getV2F(name);
		return true;
	} catch (SettingNotFoundException &e) {
		return false;
	}
}


bool Settings::getV3FNoEx(const std::string &name, v3f &val) const
{
	try {
		val = getV3F(name);
		return true;
	} catch (SettingNotFoundException &e) {
		return false;
	}
}


// N.B. getFlagStrNoEx() does not set val, but merely modifies it.  Thus,
// val must be initialized before using getFlagStrNoEx().  The intention of
// this is to simplify modifying a flags field from a default value.
bool Settings::getFlagStrNoEx(const std::string &name, u32 &val,
	FlagDesc *flagdesc) const
{
	try {
		u32 flags, flagmask;

		flags = getFlagStr(name, flagdesc, &flagmask);

		val &= ~flagmask;
		val |=  flags;

		return true;
	} catch (SettingNotFoundException &e) {
		return false;
	}
}


/***********
 * Setters *
 ***********/

bool Settings::setEntry(const std::string &name, const void *data,
	bool set_group, bool set_default)
{
	Settings *old_group = NULL;

	if (!checkNameValid(name))
		return false;
	if (!set_group && !checkValueValid(*(const std::string *)data))
		return false;

	{
		MutexAutoLock lock(m_mutex);

		SettingsEntry &entry = set_default ? m_defaults[name] : m_settings[name];
		old_group = entry.group;

		entry.value    = set_group ? "" : *(const std::string *)data;
		entry.group    = set_group ? *(Settings **)data : NULL;
		entry.is_group = set_group;
	}

	delete old_group;

	return true;
}


bool Settings::set(const std::string &name, const std::string &value)
{
	if (!setEntry(name, &value, false, false))
		return false;

	doCallbacks(name);
	return true;
}


bool Settings::setDefault(const std::string &name, const std::string &value)
{
	return setEntry(name, &value, false, true);
}


bool Settings::setGroup(const std::string &name, Settings *group)
{
	return setEntry(name, &group, true, false);
}


bool Settings::setGroupDefault(const std::string &name, Settings *group)
{
	return setEntry(name, &group, true, true);
}


bool Settings::setBool(const std::string &name, bool value)
{
	return set(name, value ? "true" : "false");
}


bool Settings::setS16(const std::string &name, s16 value)
{
	return set(name, itos(value));
}


bool Settings::setU16(const std::string &name, u16 value)
{
	return set(name, itos(value));
}


bool Settings::setS32(const std::string &name, s32 value)
{
	return set(name, itos(value));
}


bool Settings::setU64(const std::string &name, u64 value)
{
	std::ostringstream os;
	os << value;
	return set(name, os.str());
}


bool Settings::setFloat(const std::string &name, float value)
{
	return set(name, ftos(value));
}


bool Settings::setV2F(const std::string &name, v2f value)
{
	std::ostringstream os;
	os << "(" << value.X << "," << value.Y << ")";
	return set(name, os.str());
}


bool Settings::setV3F(const std::string &name, v3f value)
{
	std::ostringstream os;
	os << "(" << value.X << "," << value.Y << "," << value.Z << ")";
	return set(name, os.str());
}


bool Settings::setFlagStr(const std::string &name, u32 flags,
	const FlagDesc *flagdesc, u32 flagmask)
{
	return set(name, writeFlagString(flags, flagdesc, flagmask));
}


bool Settings::setStruct(const std::string &name, const std::string &format,
	void *value)
{
	std::string structstr;
	if (!serializeStructToString(&structstr, format, value))
		return false;

	return set(name, structstr);
}


bool Settings::setNoiseParams(const std::string &name,
	const NoiseParams &np, bool set_default)
{
	Settings *group = new Settings;

	group->setFloat("offset",      np.offset);
	group->setFloat("scale",       np.scale);
	group->setV3F("spread",        np.spread);
	group->setS32("seed",          np.seed);
	group->setU16("octaves",       np.octaves);
	group->setFloat("persistence", np.persist);
	group->setFloat("lacunarity",  np.lacunarity);
	group->setFlagStr("flags",     np.flags, flagdesc_noiseparams, np.flags);

	return setEntry(name, &group, true, set_default);
}


bool Settings::remove(const std::string &name)
{
	MutexAutoLock lock(m_mutex);

	SettingEntries::iterator it = m_settings.find(name);
	if (it != m_settings.end()) {
		delete it->second.group;
		m_settings.erase(it);
		return true;
	}

	return false;
}


void Settings::clear()
{
	MutexAutoLock lock(m_mutex);
	clearNoLock();
}

void Settings::clearDefaults()
{
	MutexAutoLock lock(m_mutex);
	clearDefaultsNoLock();
}

void Settings::updateValue(const Settings &other, const std::string &name)
{
	if (&other == this)
		return;

	MutexAutoLock lock(m_mutex);

	try {
		m_settings[name] = other.get(name);
	} catch (SettingNotFoundException &e) {
	}
}


void Settings::update(const Settings &other)
{
	if (&other == this)
		return;

	MutexAutoLock lock(m_mutex);
	MutexAutoLock lock2(other.m_mutex);

	updateNoLock(other);
}


SettingsParseEvent Settings::parseConfigObject(const std::string &line,
	const std::string &end, std::string &name, std::string &value)
{
	std::string trimmed_line = trim(line);

	if (trimmed_line.empty())
		return SPE_NONE;
	if (trimmed_line[0] == '#')
		return SPE_COMMENT;
	if (trimmed_line == end)
		return SPE_END;

	size_t pos = trimmed_line.find('=');
	if (pos == std::string::npos)
		return SPE_INVALID;

	name  = trim(trimmed_line.substr(0, pos));
	value = trim(trimmed_line.substr(pos + 1));

	if (value == "{")
		return SPE_GROUP;
	if (value == "\"\"\"")
		return SPE_MULTILINE;

	return SPE_KVPAIR;
}


void Settings::updateNoLock(const Settings &other)
{
	m_settings.insert(other.m_settings.begin(), other.m_settings.end());
	m_defaults.insert(other.m_defaults.begin(), other.m_defaults.end());
}


void Settings::clearNoLock()
{

	for (SettingEntries::const_iterator it = m_settings.begin();
			it != m_settings.end(); ++it)
		delete it->second.group;
	m_settings.clear();

	clearDefaultsNoLock();
}

void Settings::clearDefaultsNoLock()
{
	for (SettingEntries::const_iterator it = m_defaults.begin();
			it != m_defaults.end(); ++it)
		delete it->second.group;
	m_defaults.clear();
}


void Settings::registerChangedCallback(const std::string &name,
	SettingsChangedCallback cbf, void *userdata)
{
	MutexAutoLock lock(m_callback_mutex);
	m_callbacks[name].emplace_back(cbf, userdata);
}

void Settings::deregisterChangedCallback(const std::string &name,
	SettingsChangedCallback cbf, void *userdata)
{
	MutexAutoLock lock(m_callback_mutex);
	SettingsCallbackMap::iterator it_cbks = m_callbacks.find(name);

	if (it_cbks != m_callbacks.end()) {
		SettingsCallbackList &cbks = it_cbks->second;

		SettingsCallbackList::iterator position =
			std::find(cbks.begin(), cbks.end(), std::make_pair(cbf, userdata));

		if (position != cbks.end())
			cbks.erase(position);
	}
}

void Settings::doCallbacks(const std::string &name) const
{
	MutexAutoLock lock(m_callback_mutex);

	SettingsCallbackMap::const_iterator it_cbks = m_callbacks.find(name);
	if (it_cbks != m_callbacks.end()) {
		SettingsCallbackList::const_iterator it;
		for (it = it_cbks->second.begin(); it != it_cbks->second.end(); ++it)
			(it->first)(name, it->second);
	}
}