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/* ScummVM - Scumm Interpreter
* Copyright (C) 2003 The ScummVM project
*
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* $Header$
*
*/
#include "stdafx.h"
#include "objectman.h"
#include "scummsys.h"
#include "common/util.h"
#include "sworddefs.h"
#include "swordres.h"
#include "sword1.h"
ObjectMan::ObjectMan(ResMan *pResourceMan) {
_resMan = pResourceMan;
for (uint16 cnt = 0; cnt < TOTAL_SECTIONS; cnt++)
_liveList[cnt] = 0;
_liveList[128] = _liveList[129] = _liveList[130] = _liveList[131] = _liveList[133] =
_liveList[134] = _liveList[145] = _liveList[146] = _liveList[TEXT_sect] = 1;
for (uint16 cnt = 0; cnt < TOTAL_SECTIONS; cnt++) {
if (_liveList[cnt])
_cptData[cnt] = (uint8*)_resMan->cptResOpen(_objectList[cnt]) + sizeof(Header);
else
_cptData[cnt] = NULL;
}
}
ObjectMan::~ObjectMan(void) {
for (uint16 cnt = 0; cnt < TOTAL_SECTIONS; cnt++)
if (_liveList[cnt])
_resMan->resClose(_objectList[cnt]);
}
bool ObjectMan::sectionAlive(uint16 section) {
return (_liveList[section] > 0);
}
void ObjectMan::megaEntering(uint16 section) {
_liveList[section]++;
if (_liveList[section] == 1)
_cptData[section] = ((uint8*)_resMan->cptResOpen(_objectList[section])) + sizeof(Header);
}
void ObjectMan::megaLeaving(uint16 section, int id) {
if (_liveList[section] == 0)
error("mega %d is leaving empty section %d", id, section);
_liveList[section]--;
if ((_liveList[section] == 0) && (id != PLAYER)) {
_resMan->resClose(_objectList[section]);
_cptData[section] = NULL;
}
/* if the player is leaving the section then we have to close the resources after
mainloop ends, because the screen will still need the resources*/
}
uint8 ObjectMan::fnCheckForTextLine(uint32 textId) {
uint8 retVal = 0;
if (!_textList[textId / ITM_PER_SEC][0])
return 0; // section does not exist
uint8 lang = SwordEngine::_systemVars.language;
uint32 *textData = (uint32*)((uint8*)_resMan->openFetchRes(_textList[textId / ITM_PER_SEC][lang]) + sizeof(Header));
if ((textId & ITM_ID) < READ_LE_UINT32(textData)) {
textData++;
if (textData[textId & ITM_ID])
retVal = 1;
}
_resMan->resClose(_textList[textId / ITM_PER_SEC][lang]);
return retVal;
}
char *ObjectMan::lockText(uint32 textId) {
uint8 lang = SwordEngine::_systemVars.language;
char *addr = (char*)_resMan->openFetchRes(_textList[textId / ITM_PER_SEC][lang]) + sizeof(Header);
if ((textId & ITM_ID) >= READ_LE_UINT32(addr)) {
warning("ObjectMan::lockText(%d): only %d texts in file", textId & ITM_ID, READ_LE_UINT32(addr));
textId = 0; // get first line instead
}
uint32 offset = READ_LE_UINT32(addr + ((textId & ITM_ID) + 1)* 4);
if (offset == 0)
warning("ObjectMan::lockText(%d): text number has no text lines", textId);
return addr + offset;
}
void ObjectMan::unlockText(uint32 textId) {
_resMan->resClose(_textList[textId / ITM_PER_SEC][SwordEngine::_systemVars.language]);
}
uint32 ObjectMan::lastTextNumber(int section) {
uint8 *data = (uint8*)_resMan->openFetchRes(_textList[section][SwordEngine::_systemVars.language]) + sizeof(Header);
uint32 result = READ_LE_UINT32(data) - 1;
_resMan->resClose(_textList[section][SwordEngine::_systemVars.language]);
return result;
}
BsObject *ObjectMan::fetchObject(uint32 id) {
uint8 *addr = _cptData[id / ITM_PER_SEC];
if (!addr)
error("fetchObject: section %d is not open!", id / ITM_PER_SEC);
id &= ITM_ID;
// DON'T do endian conversion here. it's already done.
return (BsObject*)(addr + *(uint32*)(addr + (id + 1)*4));
}
uint32 ObjectMan::fetchNoObjects(int section) {
if (_cptData[section] == NULL)
error("fetchNoObjects: section %d is not open!", section);
return *(uint32*)_cptData[section];
}
void ObjectMan::closeSection(uint32 screen) {
if (_liveList[screen] == 0) // close the section that PLAYER has just left, if it's empty now
_resMan->resClose(_objectList[screen]);
}
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