scummvm/engines/agi/preagi.cpp
2016-05-22 22:02:37 +03:00

280 lines
7.5 KiB
C++

/* 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 "audio/mixer.h"
#include "audio/softsynth/pcspk.h"
#include "common/debug-channels.h"
#include "common/events.h"
#include "common/random.h"
#include "agi/preagi.h"
#include "agi/graphics.h"
namespace Agi {
PreAgiEngine::PreAgiEngine(OSystem *syst, const AGIGameDescription *gameDesc) : AgiBase(syst, gameDesc) {
// Setup mixer
syncSoundSettings();
DebugMan.addDebugChannel(kDebugLevelMain, "Main", "Generic debug level");
DebugMan.addDebugChannel(kDebugLevelResources, "Resources", "Resources debugging");
DebugMan.addDebugChannel(kDebugLevelSprites, "Sprites", "Sprites debugging");
DebugMan.addDebugChannel(kDebugLevelInventory, "Inventory", "Inventory debugging");
DebugMan.addDebugChannel(kDebugLevelInput, "Input", "Input events debugging");
DebugMan.addDebugChannel(kDebugLevelMenu, "Menu", "Menu debugging");
DebugMan.addDebugChannel(kDebugLevelScripts, "Scripts", "Scripts debugging");
DebugMan.addDebugChannel(kDebugLevelSound, "Sound", "Sound debugging");
DebugMan.addDebugChannel(kDebugLevelText, "Text", "Text output debugging");
DebugMan.addDebugChannel(kDebugLevelSavegame, "Savegame", "Saving & restoring game debugging");
memset(&_game, 0, sizeof(struct AgiGame));
memset(&_debug, 0, sizeof(struct AgiDebug));
memset(&_mouse, 0, sizeof(struct Mouse));
_speakerHandle = new Audio::SoundHandle();
}
void PreAgiEngine::initialize() {
initRenderMode();
_font = new GfxFont(this);
_gfx = new GfxMgr(this, _font);
_picture = new PictureMgr(this, _gfx);
_font->init();
_game.gameFlags = 0;
//_game._vm->_text->charAttrib_Set(15, 0);
_defaultColor = 0xF;
_game.name[0] = '\0';
//_game._vm->_text->configureScreen(0); // hardcoded
_gfx->initVideo();
_speakerStream = new Audio::PCSpeaker(_mixer->getOutputRate());
_mixer->playStream(Audio::Mixer::kSFXSoundType, _speakerHandle,
_speakerStream, -1, Audio::Mixer::kMaxChannelVolume, 0, DisposeAfterUse::NO, true);
debugC(2, kDebugLevelMain, "Detect game");
// clear all resources and events
for (int i = 0; i < MAX_DIRECTORY_ENTRIES; i++) {
memset(&_game.pictures[i], 0, sizeof(struct AgiPicture));
memset(&_game.sounds[i], 0, sizeof(class AgiSound *)); // _game.sounds contains pointers now
memset(&_game.dirPic[i], 0, sizeof(struct AgiDir));
memset(&_game.dirSound[i], 0, sizeof(struct AgiDir));
}
}
PreAgiEngine::~PreAgiEngine() {
_mixer->stopHandle(*_speakerHandle);
delete _speakerStream;
delete _speakerHandle;
delete _picture;
delete _gfx;
delete _font;
}
int PreAgiEngine::rnd(int hi) {
return (_rnd->getRandomNumber(hi - 1) + 1);
}
// Screen functions
void PreAgiEngine::clearScreen(int attr, bool overrideDefault) {
if (overrideDefault)
_defaultColor = attr;
_gfx->clearDisplay((attr & 0xF0) / 0x10);
}
void PreAgiEngine::clearGfxScreen(int attr) {
_gfx->drawDisplayRect(0, 0, DISPLAY_DEFAULT_WIDTH - 1, IDI_MAX_ROW_PIC * 8 - 1, (attr & 0xF0) / 0x10);
}
// String functions
void PreAgiEngine::drawStr(int row, int col, int attr, const char *buffer) {
int code;
if (attr == kColorDefault)
attr = _defaultColor;
for (int iChar = 0; iChar < (int)strlen(buffer); iChar++) {
code = buffer[iChar];
switch (code) {
case '\n':
case 0x8D:
if (++row == 200 / 8) return;
col = 0;
break;
case '|':
// swap attribute nibbles
break;
default:
_gfx->drawCharacter(row, col, code, attr & 0x0f, attr >> 4, false);
if (++col == 320 / 8) {
col = 0;
if (++row == 200 / 8) return;
}
}
}
}
void PreAgiEngine::drawStrMiddle(int row, int attr, const char *buffer) {
int col = (25 / 2) - (strlen(buffer) / 2); // 25 = 320 / 8 (maximum column)
drawStr(row, col, attr, buffer);
}
void PreAgiEngine::clearTextArea() {
int start = IDI_MAX_ROW_PIC;
if (getGameID() == GID_TROLL)
start = 21;
for (int row = start; row < 200 / 8; row++) {
clearRow(row);
}
}
void PreAgiEngine::clearRow(int row) {
drawStr(row, 0, IDA_DEFAULT, " "); // 40 spaces
}
void PreAgiEngine::printStr(const char *szMsg) {
clearTextArea();
drawStr(21, 0, IDA_DEFAULT, szMsg);
g_system->updateScreen();
}
void PreAgiEngine::XOR80(char *buffer) {
for (size_t i = 0; i < strlen(buffer); i++)
if (buffer[i] & 0x80)
buffer[i] ^= 0x80;
}
void PreAgiEngine::printStrXOR(char *szMsg) {
XOR80(szMsg);
printStr(szMsg);
}
// Input functions
int PreAgiEngine::getSelection(SelectionTypes type) {
Common::Event event;
GUI::Debugger *console = getDebugger();
while (!shouldQuit()) {
while (_eventMan->pollEvent(event)) {
switch (event.type) {
case Common::EVENT_RTL:
case Common::EVENT_QUIT:
return 0;
case Common::EVENT_RBUTTONUP:
return 0;
case Common::EVENT_LBUTTONUP:
if (type == kSelYesNo || type == kSelAnyKey)
return 1;
case Common::EVENT_KEYDOWN:
if (event.kbd.keycode == Common::KEYCODE_d && (event.kbd.flags & Common::KBD_CTRL) && console) {
console->attach();
console->onFrame();
//FIXME: If not cleared, clicking again will start the console
event.kbd.keycode = Common::KEYCODE_INVALID;
event.kbd.flags = 0;
continue;
}
switch (event.kbd.keycode) {
case Common::KEYCODE_y:
if (type == kSelYesNo)
return 1;
case Common::KEYCODE_n:
if (type == kSelYesNo)
return 0;
case Common::KEYCODE_ESCAPE:
if (type == kSelNumber || type == kSelAnyKey)
return 0;
case Common::KEYCODE_1:
case Common::KEYCODE_2:
case Common::KEYCODE_3:
case Common::KEYCODE_4:
case Common::KEYCODE_5:
case Common::KEYCODE_6:
case Common::KEYCODE_7:
case Common::KEYCODE_8:
case Common::KEYCODE_9:
if (type == kSelNumber)
return event.kbd.keycode - Common::KEYCODE_1 + 1;
case Common::KEYCODE_SPACE:
if (type == kSelSpace)
return 1;
case Common::KEYCODE_BACKSPACE:
if (type == kSelBackspace)
return 0;
default:
if (event.kbd.flags & Common::KBD_CTRL)
break;
if (type == kSelYesNo) {
return 2;
} else if (type == kSelNumber) {
return 10;
} else if (type == kSelAnyKey || type == kSelBackspace) {
return 1;
}
}
break;
default:
break;
}
}
_system->updateScreen();
_system->delayMillis(10);
}
return 0;
}
void PreAgiEngine::playNote(int16 frequency, int32 length) {
_speakerStream->play(Audio::PCSpeaker::kWaveFormSquare, frequency, length);
waitForTimer(length);
}
void PreAgiEngine::waitForTimer(int msec_delay) {
uint32 start_time = _system->getMillis();
while (_system->getMillis() < start_time + msec_delay) {
g_system->updateScreen();
_system->delayMillis(10);
}
}
} // End of namespace Agi