mirror of
https://github.com/libretro/scummvm.git
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319 lines
8.5 KiB
C++
319 lines
8.5 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* $URL$
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* $Id$
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*
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*/
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#include "common/endian.h"
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#include "common/scummsys.h"
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#include "common/util.h"
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#include "cine/cine.h"
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#include "cine/object.h"
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#include "cine/part.h"
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#include "cine/various.h"
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namespace Cine {
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Common::Array<ObjectStruct> objectTable;
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Common::List<overlay> overlayList;
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/*! \brief Resets all elements in the object table. */
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void resetObjectTable() {
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for (Common::Array<ObjectStruct>::iterator it = objectTable.begin(); it != objectTable.end(); ++it) {
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it->clear();
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}
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}
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void loadObject(char *pObjectName) {
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uint16 numEntry;
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uint16 entrySize;
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uint16 i;
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byte *ptr, *dataPtr;
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checkDataDisk(-1);
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ptr = dataPtr = readBundleFile(findFileInBundle(pObjectName));
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setMouseCursor(MOUSE_CURSOR_DISK);
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numEntry = READ_BE_UINT16(ptr); ptr += 2;
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entrySize = READ_BE_UINT16(ptr); ptr += 2;
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assert(numEntry <= NUM_MAX_OBJECT);
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for (i = 0; i < numEntry; i++) {
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if (objectTable[i].costume != -2) { // flag is keep ?
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Common::MemoryReadStream readS(ptr, entrySize);
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objectTable[i].x = readS.readSint16BE();
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objectTable[i].y = readS.readSint16BE();
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objectTable[i].mask = readS.readUint16BE();
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objectTable[i].frame = readS.readSint16BE();
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objectTable[i].costume = readS.readSint16BE();
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readS.read(objectTable[i].name, 20);
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objectTable[i].part = readS.readUint16BE();
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}
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ptr += entrySize;
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}
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if (!strcmp(pObjectName, "INTRO.OBJ")) {
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for (i = 0; i < 10; i++) {
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objectTable[i].costume = 0;
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}
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}
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free(dataPtr);
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}
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/*! \brief Remove overlay sprite from the list
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* \param objIdx Remove overlay associated with this object
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* \param param Remove overlay of this type
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*/
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int removeOverlay(uint16 objIdx, uint16 param) {
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Common::List<overlay>::iterator it;
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for (it = overlayList.begin(); it != overlayList.end(); ++it) {
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if (it->objIdx == objIdx && it->type == param) {
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overlayList.erase(it);
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return 1;
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}
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}
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return 0;
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}
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/*! \brief Add new overlay sprite to the list
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* \param objIdx Associate the overlay with this object
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* \param type Type of new overlay
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* \todo Why are x, y, width and color left uninitialized?
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*/
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void addOverlay(uint16 objIdx, uint16 type) {
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Common::List<overlay>::iterator it;
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overlay tmp;
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for (it = overlayList.begin(); it != overlayList.end(); ++it) {
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// This is done for both Future Wars and Operation Stealth
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if (objectTable[it->objIdx].mask >= objectTable[objIdx].mask) {
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break;
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}
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// There are additional checks in Operation Stealth's implementation
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if (g_cine->getGameType() == Cine::GType_OS && (it->type == 2 || it->type == 3)) {
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break;
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}
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}
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// In Operation Stealth's implementation we might bail out early
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if (g_cine->getGameType() == Cine::GType_OS && it != overlayList.end() && it->objIdx == objIdx && it->type == type) {
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return;
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}
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tmp.objIdx = objIdx;
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tmp.type = type;
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tmp.x = 0;
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tmp.y = 0;
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tmp.width = 0;
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tmp.color = 0;
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overlayList.insert(it, tmp);
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}
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/*! \brief Add new background mask overlay
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* \param objIdx Associate the overlay with this object
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* \param param source background index
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*/
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void addGfxElement(int16 objIdx, int16 param, int16 type) {
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Common::List<overlay>::iterator it;
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overlay tmp;
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for (it = overlayList.begin(); it != overlayList.end(); ++it) {
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if (objectTable[it->objIdx].mask >= objectTable[objIdx].mask || it->type == 2 || it->type == 3) {
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break;
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}
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}
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if (it != overlayList.end() && it->objIdx == objIdx && it->type == type && it->x == param) {
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return;
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}
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tmp.objIdx = objIdx;
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tmp.type = type;
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tmp.x = param;
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tmp.y = 0;
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tmp.width = 0;
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tmp.color = 0;
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overlayList.insert(it, tmp);
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}
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/*! \brief Remove background mask overlay
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* \param objIdx Remove overlay associated with this object
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* \param param Remove overlay using this background
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* \todo Check that it works
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*/
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void removeGfxElement(int16 objIdx, int16 param, int16 type) {
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Common::List<overlay>::iterator it;
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for (it = overlayList.begin(); it != overlayList.end(); ++it) {
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if (it->objIdx == objIdx && it->type == type && it->x == param) {
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overlayList.erase(it);
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return;
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}
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}
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}
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void setupObject(byte objIdx, uint16 param1, uint16 param2, uint16 param3, uint16 param4) {
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objectTable[objIdx].x = param1;
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objectTable[objIdx].y = param2;
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objectTable[objIdx].mask = param3;
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objectTable[objIdx].frame = param4;
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if (g_cine->getGameType() == Cine::GType_OS) {
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resetGfxEntityEntry(objIdx);
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} else { // Future Wars
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if (removeOverlay(objIdx, 0)) {
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addOverlay(objIdx, 0);
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}
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}
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}
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void subObjectParam(byte objIdx, byte paramIdx, int16 newValue) {
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addObjectParam(objIdx, paramIdx, -newValue);
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}
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void addObjectParam(byte objIdx, byte paramIdx, int16 newValue) {
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int16 currentValue = getObjectParam(objIdx, paramIdx);
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modifyObjectParam(objIdx, paramIdx, currentValue + newValue);
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}
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void modifyObjectParam(byte objIdx, byte paramIdx, int16 newValue) {
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// Operation Stealth checks object index range, Future Wars doesn't.
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if (g_cine->getGameType() == Cine::GType_OS && objIdx >= NUM_MAX_OBJECT)
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return;
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switch (paramIdx) {
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case 1:
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objectTable[objIdx].x = newValue;
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break;
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case 2:
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objectTable[objIdx].y = newValue;
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break;
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case 3:
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objectTable[objIdx].mask = newValue;
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if (g_cine->getGameType() == Cine::GType_OS) { // Operation Stealth specific
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resetGfxEntityEntry(objIdx);
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} else { // Future Wars specific
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if (removeOverlay(objIdx, 0)) {
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addOverlay(objIdx, 0);
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}
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}
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break;
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case 4:
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objectTable[objIdx].frame = newValue;
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break;
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case 5:
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// TODO: Test if this really breaks the newspaper machine on the airport in Operation Stealth.
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if (g_cine->getGameType() == Cine::GType_FW && newValue == -1) {
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objectTable[objIdx].costume = globalVars[0];
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} else {
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objectTable[objIdx].costume = newValue;
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}
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break;
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case 6:
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objectTable[objIdx].part = newValue;
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break;
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}
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}
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/**
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* Check if at least one of the range B's endpoints is inside range A,
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* not counting the starting and ending points of range A.
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* Used at least by Operation Stealth's opcode 0x8D i.e. 141.
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*/
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bool compareRanges(uint16 aStart, uint16 aEnd, uint16 bStart, uint16 bEnd) {
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return (bStart > aStart && bStart < aEnd) || (bEnd > aStart && bEnd < aEnd);
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}
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uint16 compareObjectParamRanges(uint16 objIdx1, uint16 xAdd1, uint16 yAdd1, uint16 maskAdd1, uint16 objIdx2, uint16 xAdd2, uint16 yAdd2, uint16 maskAdd2) {
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assert(objIdx1 < NUM_MAX_OBJECT && objIdx2 < NUM_MAX_OBJECT);
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const ObjectStruct &obj1 = objectTable[objIdx1];
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const ObjectStruct &obj2 = objectTable[objIdx2];
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if (compareRanges(obj1.x, obj1.x + xAdd1, obj2.x, obj2.x + xAdd2) &&
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compareRanges(obj1.y, obj1.y + yAdd1, obj2.y, obj2.y + yAdd2) &&
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compareRanges(obj1.mask, obj1.mask + maskAdd1, obj2.mask, obj2.mask + maskAdd2)) {
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return kCmpEQ;
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} else {
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return 0;
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}
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}
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uint16 compareObjectParam(byte objIdx, byte type, int16 value) {
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uint16 compareResult = 0;
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int16 objectParam = getObjectParam(objIdx, type);
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if (objectParam > value) {
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compareResult |= kCmpGT;
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} else if (objectParam < value) {
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compareResult |= kCmpLT;
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} else {
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compareResult |= kCmpEQ;
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}
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return compareResult;
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}
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/*! \bug In Operation Stealth, if you try to go downstairs to the sea in the
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* location between bank and hotel, getObjectParam is called with paramIdx 16
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* and crashes
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*/
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int16 getObjectParam(uint16 objIdx, uint16 paramIdx) {
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assert(objIdx <= NUM_MAX_OBJECT);
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paramIdx--;
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assert(paramIdx <= 5);
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switch (paramIdx) {
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case 0:
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return objectTable[objIdx].x;
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case 1:
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return objectTable[objIdx].y;
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case 2:
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return objectTable[objIdx].mask;
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case 3:
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return objectTable[objIdx].frame;
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case 4:
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return objectTable[objIdx].costume;
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case 5:
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return objectTable[objIdx].part;
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}
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return 0;
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}
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} // End of namespace Cine
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