aboutsummaryrefslogtreecommitdiff
path: root/engines/kyra/kyra.cpp
blob: 1d8d7440f0d1da9b18c4d18b28f95100a49128ef (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
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
/* 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.
 *
 * $URL$
 * $Id$
 *
 */

#include "common/stdafx.h"

#include "common/config-manager.h"

#include "sound/mididrv.h"
#include "sound/mixer.h"

#include "kyra/kyra.h"
#include "kyra/sound.h"
#include "kyra/resource.h"
#include "kyra/screen.h"
#include "kyra/text.h"
#include "kyra/timer.h"
#include "kyra/script.h"

namespace Kyra {

KyraEngine::KyraEngine(OSystem *system, const GameFlags &flags)
	: Engine(system) {
	_res = 0;
	_sound = 0;
	_text = 0;
	_staticres = 0;
	_timer = 0;
	_scriptInterpreter = 0;
	
	_flags = flags;
	_gameSpeed = 60;
	_tickLength = (uint8)(1000.0 / _gameSpeed);
	
	_quitFlag = false;
	
	_skipFlag = false;
	
	memset(_flagsTable, 0, sizeof(_flagsTable));

	// sets up all engine specific debug levels
	Common::addSpecialDebugLevel(kDebugLevelScriptFuncs, "ScriptFuncs", "Script function debug level");
	Common::addSpecialDebugLevel(kDebugLevelScript, "Script", "Script interpreter debug level");
	Common::addSpecialDebugLevel(kDebugLevelSprites, "Sprites", "Sprite debug level");
	Common::addSpecialDebugLevel(kDebugLevelScreen, "Screen", "Screen debug level");
	Common::addSpecialDebugLevel(kDebugLevelSound, "Sound", "Sound debug level");
	Common::addSpecialDebugLevel(kDebugLevelAnimator, "Animator", "Animator debug level");
	Common::addSpecialDebugLevel(kDebugLevelMain, "Main", "Generic debug level");
	Common::addSpecialDebugLevel(kDebugLevelGUI, "GUI", "GUI debug level");
	Common::addSpecialDebugLevel(kDebugLevelSequence, "Sequence", "Sequence debug level");
	Common::addSpecialDebugLevel(kDebugLevelMovie, "Movie", "Movie debug level");
	Common::addSpecialDebugLevel(kDebugLevelTimer, "Timer", "Timer debug level");
}

int KyraEngine::init() {
	// Setup mixer
	if (!_mixer->isReady())
		warning("Sound initialization failed.");

	_mixer->setVolumeForSoundType(Audio::Mixer::kSFXSoundType, ConfMan.getInt("sfx_volume"));
	_mixer->setVolumeForSoundType(Audio::Mixer::kMusicSoundType, ConfMan.getInt("music_volume"));
	_mixer->setVolumeForSoundType(Audio::Mixer::kSpeechSoundType, ConfMan.getInt("speech_volume"));
	
		// for now we prefer Adlib over native MIDI
	int midiDriver = MidiDriver::detectMusicDriver(MDT_MIDI | MDT_ADLIB/* | MDT_PREFER_MIDI*/);

	if (_flags.platform == Common::kPlatformFMTowns) {
		// no sfx enabled for CD audio music atm
		// later on here should be a usage of MixedSoundDriver
		_sound = new SoundTowns(this, _mixer);
	} else if (midiDriver == MD_ADLIB) {
		_sound = new SoundAdlibPC(this, _mixer);
		assert(_sound);
	} else {
		bool native_mt32 = ((midiDriver == MD_MT32) || ConfMan.getBool("native_mt32"));

		MidiDriver *driver = MidiDriver::createMidi(midiDriver);
		assert(driver);
		if (native_mt32)
			driver->property(MidiDriver::PROP_CHANNEL_MASK, 0x03FE);

		SoundMidiPC *soundMidiPc = new SoundMidiPC(this, _mixer, driver);
		_sound = soundMidiPc;
		assert(_sound);
		soundMidiPc->hasNativeMT32(native_mt32);

		// C55 appears to be XMIDI for General MIDI instruments
		soundMidiPc->setUseC55(_flags.gameID == GI_KYRA2 && !native_mt32);
		
		// Unlike some SCUMM games, it's not that the MIDI sounds are
		// missing. It's just that at least at the time of writing they
		// are decidedly inferior to the Adlib ones.

		if (midiDriver != MD_ADLIB && ConfMan.getBool("multi_midi")) {
			SoundAdlibPC *adlib = new SoundAdlibPC(this, _mixer);
			assert(adlib);
			
			_sound = new MixedSoundDriver(this, _mixer, soundMidiPc, adlib);
			assert(_sound);
		}
	}

	_res = new Resource(this);
	assert(_res);
	_text = new TextDisplayer(this, this->screen());
	assert(_text);
	_staticres = new StaticResource(this);
	assert(_staticres);
	if (!_staticres->init())
		error("_staticres->init() failed");
	_timer = new TimerManager(this, _system);
	assert(_timer);
	_scriptInterpreter = new ScriptHelper(this);
	assert(_scriptInterpreter);
	
	setupOpcodeTable();

	_lang = 0;
	Common::Language lang = Common::parseLanguage(ConfMan.get("language"));

	if (_flags.gameID == GI_KYRA2 || _flags.gameID == GI_KYRA3) {
		switch (lang) {
		case Common::EN_ANY:
		case Common::EN_USA:
		case Common::EN_GRB:
			_lang = 0;
			break;

		case Common::FR_FRA:
			_lang = 1;
			break;

		case Common::DE_DEU:
			_lang = 2;
			break;

		default:
			warning("unsupported language, switching back to English");
			_lang = 0;
			break;
		}
	}

	return 0;
}

KyraEngine::~KyraEngine() {
	delete _res;
	delete _sound;
	delete _text;
	delete _timer;
	delete _scriptInterpreter;
}

void KyraEngine::quitGame() {
	debugC(9, kDebugLevelMain, "KyraEngine::quitGame()");
	_quitFlag = true;
	// Nothing to do here
}

Common::Point KyraEngine::getMousePos() const {
	Common::Point mouse = _eventMan->getMousePos();

	if (_flags.useHiResOverlay) {
		mouse.x >>= 1;
		mouse.y >>= 1;
	}

	return mouse;
}

int KyraEngine::setGameFlag(int flag) {
	_flagsTable[flag >> 3] |= (1 << (flag & 7));
	return 1;
}

int KyraEngine::queryGameFlag(int flag) const {
	return ((_flagsTable[flag >> 3] >> (flag & 7)) & 1);
}

int KyraEngine::resetGameFlag(int flag) {
	_flagsTable[flag >> 3] &= ~(1 << (flag & 7));
	return 0;
}

void KyraEngine::delayUntil(uint32 timestamp, bool updateTimers, bool update, bool isMainLoop) {
	while (_system->getMillis() < timestamp && !_quitFlag) {
		if (timestamp - _system->getMillis() >= 10)
			delay(10, update, isMainLoop);
	}
}

void KyraEngine::delay(uint32 amount, bool update, bool isMainLoop) {
	_system->delayMillis(amount);
}

void KyraEngine::delayWithTicks(int ticks) {
	delay(ticks * _tickLength);
}

} // End of namespace Kyra