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/* 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 "scumm/scumm_v4.h"
#include "scumm/object.h"
namespace Scumm {
#define OPCODE(i, x) _opcodes[i]._OPCODE(ScummEngine_v4, x)
void ScummEngine_v4::setupOpcodes() {
ScummEngine_v5::setupOpcodes();
OPCODE(0x25, o5_drawObject);
OPCODE(0x45, o5_drawObject);
OPCODE(0x65, o5_drawObject);
OPCODE(0xa5, o5_drawObject);
OPCODE(0xc5, o5_drawObject);
OPCODE(0xe5, o5_drawObject);
OPCODE(0x50, o4_pickupObject);
OPCODE(0xd0, o4_pickupObject);
OPCODE(0x5c, o4_oldRoomEffect);
OPCODE(0xdc, o4_oldRoomEffect);
}
void ScummEngine_v4::o4_pickupObject() {
int obj = getVarOrDirectWord(PARAM_1);
if (obj < 1) {
error("pickupObjectOld received invalid index %d (script %d)", obj, vm.slot[_currentScript].number);
}
if (getObjectIndex(obj) == -1)
return;
if (whereIsObject(obj) == WIO_INVENTORY) // Don't take an object twice
return;
// debug(0, "adding %d from %d to inventoryOld", obj, _currentRoom);
addObjectToInventory(obj, _roomResource);
markObjectRectAsDirty(obj);
putOwner(obj, VAR(VAR_EGO));
putClass(obj, kObjectClassUntouchable, 1);
putState(obj, 1);
clearDrawObjectQueue();
runInventoryScript(1);
}
void ScummEngine_v4::o4_oldRoomEffect() {
int a;
_opcode = fetchScriptByte();
if ((_opcode & 0x1F) == 3) {
a = getVarOrDirectWord(PARAM_1);
#if 1
if (_game.platform == Common::kPlatformFMTowns && _game.version == 3) {
// FIXME / TODO: OK the first thing to note is: at least in Zak256,
// maybe also in other games, this opcode does a bit more. I added
// some stubs here, but somebody with a full IDA or more knowledge
// about this will have to fill in the gaps. At least now we know
// that something is missing here :-)
if (a == 4) {
//printf("o5_oldRoomEffect ODDBALL: _opcode = 0x%x, a = 0x%x\n", _opcode, a);
// No idea what byte_2FCCF is, but it's a globale boolean flag.
// I only add it here as a temporary hack to make the pseudo code compile.
// Maybe it is just there as a reentry protection guard, given
// how it is used? It might also correspond to _screenEffectFlag.
int byte_2FCCF = 0;
// For now, we force a redraw of the screen background. This
// way the Zak end credits seem to work mostly correct.
VirtScreen *vs = &_virtscr[kMainVirtScreen];
restoreBackground(Common::Rect(0, vs->topline, vs->w, vs->topline + vs->h));
vs->setDirtyRange(0, vs->h);
updateDirtyScreen(kMainVirtScreen);
if (byte_2FCCF) {
// Here now "sub_1C44" is called, which sets byte_2FCCF to 0 then
// calls yet another sub (which also reads byte_2FCCF):
byte_2FCCF = 0;
//call sub_0BB3
// Now sub_085C is called. This is quite simply: it sets
// 0xF000 bytes. starting at 0x40000 to 0. No idea what that
// buffer is, maybe a screen buffer, though. Note that
// 0xF000 = 320*192.
// Maybe this is also the charset mask being cleaned?
// call sub_085C
// And then sub_1C54 is called, which is almost identical to
// the above sub_1C44, only it sets byte_2FCCF to 1:
byte_2FCCF = 1;
// call sub_0BB3
} else {
// Here only sub_085C is called (see comment above)
// call sub_085C
}
return;
}
#endif
}
if (a) {
_switchRoomEffect = (byte)(a & 0xFF);
_switchRoomEffect2 = (byte)(a >> 8);
} else {
fadeIn(_newEffect);
}
}
}
} // End of namespace Scumm
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