aboutsummaryrefslogtreecommitdiff
path: root/engines/sword25/util/lua/scummvm_file.cpp
blob: 659f5a36c22c978ab007cd9c93d98ef18e6bcb54 (plain)
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
/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * This program 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 (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 General Public License for more details.

 * You should have received a copy of the GNU 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 "sword25/util/lua/scummvm_file.h"
#include "common/config-manager.h"
#include "common/util.h"

namespace Sword25 {

Sword25FileProxy::Sword25FileProxy(const Common::String &filename, const Common::String &mode) {
	assert(filename.contains("config.lua"));
	if (mode == "r")
		setupConfigFile();
}

void Sword25FileProxy::setupConfigFile() {
	float sfxVolume = ConfMan.hasKey("sfx_volume") ? 1.0 : 1.0 * ConfMan.getInt("sfx_volume") / 255.0;
	float musicVolume = ConfMan.hasKey("music_volume") ? 0.5 : 1.0 * ConfMan.getInt("music_volume") / 255.0;
	float speechVolume = ConfMan.hasKey("speech_volume") ? 1.0 : 1.0 * ConfMan.getInt("speech_volume") / 255.0;
	bool subtitles = ConfMan.hasKey("subtitles") ? true : ConfMan.getBool("subtitles");

	_readData = Common::String::format(
"GAME_LANGUAGE = \"%s\"\r\n\
GAME_SUBTITLES = %s\r\n\
MAX_MEMORY_USAGE = 256000000\r\n\
GFX_VSYNC_ACTIVE = true\r\n\
SFX_SAMPLING_RATE = 44100\r\n\
SFX_CHANNEL_COUNT = 32\r\n\
SFX_SOUND_VOLUME = %f\r\n\
SFX_MUSIC_VOLUME = %f\r\n\
SFX_SPEECH_VOLUME = %f\r\n",
		getLanguage().c_str(), subtitles ? "true" : "false", sfxVolume, musicVolume, speechVolume);

	_readPos = 0;
}

Sword25FileProxy::~Sword25FileProxy() {
	if (!_settings.empty())
		writeSettings();
}

size_t Sword25FileProxy::read(void *ptr, size_t size, size_t count) {
	size_t bytesRead = MIN<size_t>(_readData.size() - _readPos, size * count);
	memmove(ptr, &_readData.c_str()[_readPos], bytesRead);
	_readPos += bytesRead;
	return bytesRead / size;
}

size_t Sword25FileProxy::write(const char *ptr, size_t count) {
	// Loop through the provided line(s)
	while (*ptr) {
		if ((*ptr == '-') && (*(ptr + 1) == '-')) {
			// Comment line to skip over
			while ((*ptr != '\r') && (*ptr != '\n'))
				++ptr;
		} else {
			// Legitimate data
			const char *p = strchr(ptr, '\n');
			if (!p) p = ptr + strlen(ptr);
			while ((*p == '\r') || (*p == '\n')) 
				++p;

			_settings += Common::String(ptr, p - ptr);
			ptr = p;
		}

		while ((*ptr == '\r') || (*ptr == '\n')) 
			++ptr;
	}

	return count;
}

void Sword25FileProxy::writeSettings() {
	// Loop through the setting lines
	const char *pSrc = _settings.c_str();
	while (*pSrc) {
		if ((*pSrc != '\r') && (*pSrc != '\n')) {
			const char *p = strchr(pSrc, '=');
			assert(p);
			
			// Get the setting name
			const char *pEnd = p - 1;
			while (*pEnd == ' ')
				--pEnd;
			Common::String settingName(pSrc, pEnd - pSrc + 1);

			// Get the setting value
			const char *pStart = p + 1;
			while (*pStart == ' ')
				++pStart;

			pEnd = pStart + 1;
			while ((*pEnd != '\r') && (*pEnd != '\n') && (*pEnd != '\0')) 
				++pEnd;
			Common::String value(pStart + (*pStart == '"' ? 1 : 0), pEnd - pStart - (*pStart == '"' ? 2 : 0));
			
			// Update the setting
			updateSetting(settingName, value);
			pSrc = pEnd;
		}

		// Move to next line
		while ((*pSrc == '\r') || (*pSrc == '\n'))
			++pSrc;
	}

	ConfMan.flushToDisk();
}

void Sword25FileProxy::updateSetting(const Common::String &setting, const Common::String &value) {
	if (setting == "GAME_LANGUAGE")
		setLanguage(value);
	else if (setting == "GAME_SUBTITLES")
		ConfMan.setBool("subtitles", value == "true");
	else if (setting == "SFX_SOUND_VOLUME") {
		double v = strtod(value.c_str(), NULL);
		ConfMan.setInt("sfx_volume", (int)(v * 255));
	} else if (setting == "SFX_MUSIC_VOLUME") {
		double v = strtod(value.c_str(), NULL);
		ConfMan.setInt("music_volume", (int)(v * 255));
	} else if (setting == "SFX_SPEECH_VOLUME") {
		double v = strtod(value.c_str(), NULL);
		ConfMan.setInt("speech_volume", (int)(v * 255));
	} else {
		// All other settings are ignored
	}
}

/**
 * Get the language code used by the game for each language it supports
 */
Common::String Sword25FileProxy::getLanguage() {
	Common::Language lang = Common::parseLanguage(ConfMan.get("language"));
	switch (lang) {
	case Common::EN_ANY:
		return "en";
	case Common::DE_DEU:
		return "de";
	case Common::ES_ESP:
		return "es";
	case Common::FR_FRA:
		return "fr";
	case Common::HU_HUN:
		return "hr";
	case Common::IT_ITA:
		return "it";
	case Common::PL_POL:
		return "pl";
	case Common::PT_BRA:
		return "pt";
	case Common::RU_RUS:
		return "ru";
	default:
		error("Unknown language '%s' encountered", ConfMan.get("language").c_str());
		break;
	}
}

/**
 * Set the language code fro the game
 */
void Sword25FileProxy::setLanguage(const Common::String &lang) {
	if (lang == "en")
		ConfMan.set("language", Common::getLanguageCode(Common::EN_ANY));
	else if (lang == "de")
		ConfMan.set("language", Common::getLanguageCode(Common::DE_DEU));
	else if (lang == "es")
		ConfMan.set("language", Common::getLanguageCode(Common::ES_ESP));
	else if (lang == "fr")
		ConfMan.set("language", Common::getLanguageCode(Common::FR_FRA));
	else if (lang == "hr")
		ConfMan.set("language", Common::getLanguageCode(Common::HU_HUN));
	else if (lang == "it")
		ConfMan.set("language", Common::getLanguageCode(Common::IT_ITA));
	else if (lang == "pl")
		ConfMan.set("language", Common::getLanguageCode(Common::PL_POL));
	else if (lang == "pt")
		ConfMan.set("language", Common::getLanguageCode(Common::PT_BRA));
	else if (lang == "ru")
		ConfMan.set("language", Common::getLanguageCode(Common::RU_RUS));
	else
		error("Unknown language encountered");
}

} // End of namespace Sword25