mirror of
https://github.com/libretro/scummvm.git
synced 2024-12-14 05:38:56 +00:00
419 lines
8.8 KiB
C++
419 lines
8.8 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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objectStruct objectTable[NUM_MAX_OBJECT];
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uint16 globalVars[NUM_MAX_OBJECTDATA];
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overlayHeadElement overlayHead;
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void unloadAllMasks(void) {
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overlayHeadElement *current = overlayHead.next;
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while (current) {
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overlayHeadElement *next = current->next;
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free(current);
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current = next;
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}
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resetMessageHead();
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}
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void resetMessageHead(void) {
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overlayHead.next = NULL;
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overlayHead.previous = NULL;
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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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int8 removeOverlayElement(uint16 objIdx, uint16 param) {
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overlayHeadElement *currentHeadPtr = &overlayHead;
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overlayHeadElement *tempHead = currentHeadPtr;
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overlayHeadElement *tempPtr2;
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currentHeadPtr = tempHead->next;
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while (currentHeadPtr && (objIdx != currentHeadPtr->objIdx || param != currentHeadPtr->type)) {
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tempHead = currentHeadPtr;
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currentHeadPtr = tempHead->next;
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}
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if (!currentHeadPtr) {
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return -1;
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}
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if (objIdx != currentHeadPtr->objIdx || param != currentHeadPtr->type) {
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return -1;
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}
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tempHead->next = currentHeadPtr->next;
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tempPtr2 = currentHeadPtr->next;
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if (!tempPtr2) {
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tempPtr2 = &overlayHead;
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}
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tempPtr2->previous = currentHeadPtr->previous;
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free(currentHeadPtr);
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return 0;
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}
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int16 freeOverlay(uint16 objIdx, uint16 param) {
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overlayHeadElement *currentHeadPtr = overlayHead.next;
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overlayHeadElement *previousPtr = &overlayHead;
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while (currentHeadPtr && ((currentHeadPtr->objIdx != objIdx) || (currentHeadPtr->type != param))) {
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previousPtr = currentHeadPtr;
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currentHeadPtr = previousPtr->next;
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}
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if (!currentHeadPtr) {
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return -1;
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}
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if (!((currentHeadPtr->objIdx == objIdx) && (currentHeadPtr->type == param))) {
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return -1;
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}
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previousPtr->next = currentHeadPtr->next;
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overlayHeadElement *tempPtr2 = currentHeadPtr->next;
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if (!tempPtr2) {
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tempPtr2 = &overlayHead;
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}
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tempPtr2->previous = currentHeadPtr->previous;
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// FIXME: is this needed? It causes crashes in Windows in the drawOverlays function
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// (the currentOverlay pointer is incorrect)
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// Removing this fixes bug #1733238 - FW: crash in copier room
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// Also, it stops the game from crashing right after the introduction
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//free(currentHeadPtr);
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return 0;
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}
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void loadOverlayElement(uint16 objIdx, uint16 param) {
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overlayHeadElement *currentHeadPtr = &overlayHead;
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overlayHeadElement *pNewElement;
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uint16 si = objectTable[objIdx].mask;
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overlayHeadElement *tempHead = currentHeadPtr;
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currentHeadPtr = tempHead->next;
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while (currentHeadPtr && (objectTable[currentHeadPtr->objIdx].mask < si)) {
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tempHead = currentHeadPtr;
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currentHeadPtr = tempHead->next;
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}
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pNewElement = (overlayHeadElement *)malloc(sizeof(overlayHeadElement));
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assert(pNewElement);
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pNewElement->next = tempHead->next;
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tempHead->next = pNewElement;
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pNewElement->objIdx = objIdx;
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pNewElement->type = param;
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if (!currentHeadPtr) {
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currentHeadPtr = &overlayHead;
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}
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pNewElement->previous = currentHeadPtr->previous;
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currentHeadPtr->previous = pNewElement;
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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 (!removeOverlayElement(objIdx, 0)) {
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loadOverlayElement(objIdx, 0);
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}
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}
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void subObjectParam(byte objIdx, byte paramIdx, int16 newValue) {
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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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objectTable[objIdx].x -= newValue;
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break;
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case 1:
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objectTable[objIdx].y -= newValue;
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break;
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case 2:
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objectTable[objIdx].mask -= newValue;
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if (!removeOverlayElement(objIdx, 0)) {
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loadOverlayElement(objIdx, 0);
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}
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break;
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case 3:
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objectTable[objIdx].frame -= newValue;
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break;
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case 4:
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objectTable[objIdx].costume -= newValue;
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break;
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case 5:
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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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void addObjectParam(byte objIdx, byte paramIdx, int16 newValue) {
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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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objectTable[objIdx].x += newValue;
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break;
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case 1:
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objectTable[objIdx].y += newValue;
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break;
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case 2:
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objectTable[objIdx].mask += newValue;
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if (!removeOverlayElement(objIdx, 0)) {
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loadOverlayElement(objIdx, 0);
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}
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break;
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case 3:
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objectTable[objIdx].frame += newValue;
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break;
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case 4:
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objectTable[objIdx].costume += newValue;
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break;
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case 5:
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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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void modifyObjectParam(byte objIdx, byte paramIdx, int16 newValue) {
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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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objectTable[objIdx].x = newValue;
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break;
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case 1:
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objectTable[objIdx].y = newValue;
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break;
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case 2:
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objectTable[objIdx].mask = newValue;
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if (!removeOverlayElement(objIdx, 0)) {
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loadOverlayElement(objIdx, 0);
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}
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break;
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case 3:
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objectTable[objIdx].frame = newValue;
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break;
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case 4:
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if (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 5:
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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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byte compareObjectParam(byte objIdx, byte type, int16 value) {
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byte compareResult = 0;
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switch (type - 1) {
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case 0:
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if (objectTable[objIdx].x == value) {
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compareResult |= kCmpEQ;
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}
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if (objectTable[objIdx].x > value) {
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compareResult |= kCmpGT;
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}
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if (objectTable[objIdx].x < value) {
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compareResult |= kCmpLT;
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}
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break;
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case 1:
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if (objectTable[objIdx].y == value) {
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compareResult |= kCmpEQ;
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}
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if (objectTable[objIdx].y > value) {
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compareResult |= kCmpGT;
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}
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if (objectTable[objIdx].y < value) {
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compareResult |= kCmpLT;
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}
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break;
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case 2:
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if (objectTable[objIdx].mask == value) {
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compareResult |= kCmpEQ;
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}
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if (objectTable[objIdx].mask > value) {
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compareResult |= kCmpGT;
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}
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if (objectTable[objIdx].mask < value) {
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compareResult |= kCmpLT;
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}
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break;
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case 3:
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if (objectTable[objIdx].frame == value) {
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compareResult |= kCmpEQ;
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}
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if (objectTable[objIdx].frame > value) {
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compareResult |= kCmpGT;
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}
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if (objectTable[objIdx].frame < value) {
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compareResult |= kCmpLT;
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}
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break;
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case 4:
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if (objectTable[objIdx].costume == value) {
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compareResult |= kCmpEQ;
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}
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if (objectTable[objIdx].costume > value) {
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compareResult |= kCmpGT;
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}
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if (objectTable[objIdx].costume < value) {
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compareResult |= kCmpLT;
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}
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break;
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default:
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error("Unsupported compare type: %d in compareObjectParam", type - 1);
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}
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return compareResult;
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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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