mirror of
https://github.com/libretro/scummvm.git
synced 2024-12-04 16:26:53 +00:00
596 lines
16 KiB
C++
596 lines
16 KiB
C++
/* ScummVM - Scumm Interpreter
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* Copyright (C) 2001 Ludvig Strigeus
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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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* Change Log:
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* $Log$
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* Revision 1.6 2001/10/26 17:34:50 strigeus
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* bug fixes, code cleanup
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*
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* Revision 1.5 2001/10/18 20:04:58 strigeus
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* flags were not saved properly
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*
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* Revision 1.4 2001/10/17 10:07:39 strigeus
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* fixed verbs not saved in non dott games,
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* implemented a screen effect
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*
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* Revision 1.3 2001/10/16 10:01:47 strigeus
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* preliminary DOTT support
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*
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* Revision 1.2 2001/10/10 10:02:33 strigeus
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* alternative mouse cursor
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* basic save&load
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*
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* Revision 1.1.1.1 2001/10/09 14:30:13 strigeus
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*
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* initial revision
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*
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*
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*/
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#include "stdafx.h"
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#include "scumm.h"
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struct SaveGameHeader {
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uint32 type;
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uint32 size;
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uint32 ver;
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};
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#define CURRENT_VER 2
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bool Scumm::saveState(const char *filename) {
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FILE *out = fopen(filename,"wb");
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SaveGameHeader hdr;
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if (out==NULL)
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return false;
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hdr.type = MKID('SCVM');
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hdr.size = 0;
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hdr.ver = CURRENT_VER;
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fwrite(&hdr, sizeof(hdr), 1, out);
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saveOrLoad(out,true);
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fclose(out);
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debug(1,"State saved as '%s'", filename);
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return true;
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}
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bool Scumm::loadState(const char *filename) {
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FILE *out = fopen(filename,"rb");
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int i,j;
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SaveGameHeader hdr;
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int sb,sh;
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if (out==NULL)
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return false;
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fread(&hdr, sizeof(hdr), 1, out);
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if (hdr.type != MKID('SCVM')) {
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warning("Invalid savegame '%s'", filename);
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fclose(out);
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return false;
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}
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if (hdr.ver != CURRENT_VER) {
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warning("Invalid version of '%s'", filename);
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fclose(out);
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return false;
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}
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CHECK_HEAP
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openRoom(-1);
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memset(_inventory, 0, sizeof(_inventory));
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/* Nuke all resources */
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for (i=1; i<16; i++)
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if (!(i==13 || i==12 || i==10 || res.mode[i]))
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for(j=1; j<res.num[i]; j++)
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nukeResource(i,j);
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initScummVars();
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saveOrLoad(out,false);
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fclose(out);
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sb = _screenB;
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sh = _screenH;
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initScreens(0, 0, 320, 200);
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_screenEffectFlag = 1;
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unkVirtScreen4(129);
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initScreens(0, sb, 320, sh);
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_completeScreenRedraw = 1;
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setDirtyColors(0,255);
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_lastCodePtr = NULL;
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_drawObjectQueNr = 0;
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_verbMouseOver = 0;
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initBGBuffers();
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CHECK_HEAP
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debug(1,"State loaded from '%s'", filename);
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return true;
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}
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#define OFFS(type,item) ((int)(&((type*)0)->item))
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#define SIZE(type,item) sizeof(((type*)0)->item)
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#define MKLINE(type,item,saveas) {OFFS(type,item),saveas,SIZE(type,item)}
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#define MKARRAY(type,item,saveas,num) {OFFS(type,item),128|saveas,SIZE(type,item)}, {num,0,0}
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#define MKEND() {0xFFFF,0xFF,0xFF}
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void Scumm::saveOrLoad(FILE *inout, bool mode) {
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const SaveLoadEntry objectEntries[] = {
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MKLINE(ObjectData,offs_obim_to_room,sleUint32),
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MKLINE(ObjectData,offs_obcd_to_room,sleUint32),
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MKLINE(ObjectData,cdhd_10,sleUint16),
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MKLINE(ObjectData,cdhd_12,sleUint16),
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MKLINE(ObjectData,obj_nr,sleUint16),
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MKLINE(ObjectData,x_pos,sleInt16),
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MKLINE(ObjectData,y_pos,sleInt16),
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MKLINE(ObjectData,numstrips,sleUint16),
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MKLINE(ObjectData,height,sleUint16),
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MKLINE(ObjectData,actordir,sleByte),
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MKLINE(ObjectData,parentstate,sleByte),
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MKLINE(ObjectData,parent,sleByte),
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MKLINE(ObjectData,ownerstate,sleByte),
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MKLINE(ObjectData,fl_object_index,sleByte),
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MKLINE(ObjectData,unk_3,sleByte),
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MKEND()
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};
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const SaveLoadEntry actorEntries[] = {
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MKLINE(Actor,x,sleInt16),
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MKLINE(Actor,y,sleInt16),
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MKLINE(Actor,top,sleInt16),
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MKLINE(Actor,bottom,sleInt16),
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MKLINE(Actor,elevation,sleInt16),
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MKLINE(Actor,width,sleUint16),
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MKLINE(Actor,facing,sleByte),
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MKLINE(Actor,costume,sleUint16),
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MKLINE(Actor,room,sleByte),
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MKLINE(Actor,talkColor,sleByte),
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MKLINE(Actor,scalex,sleByte),
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MKLINE(Actor,scaley,sleByte),
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MKLINE(Actor,charset,sleByte),
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MKARRAY(Actor,sound[0],sleByte, 8),
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MKLINE(Actor,newDirection,sleByte),
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MKLINE(Actor,moving,sleByte),
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MKLINE(Actor,ignoreBoxes,sleByte),
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MKLINE(Actor,neverZClip,sleByte),
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MKLINE(Actor,initFrame,sleByte),
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MKLINE(Actor,walkFrame,sleByte),
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MKLINE(Actor,standFrame,sleByte),
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MKLINE(Actor,talkFrame1,sleByte),
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MKLINE(Actor,talkFrame2,sleByte),
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MKLINE(Actor,speedx,sleUint16),
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MKLINE(Actor,speedy,sleUint16),
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MKLINE(Actor,cost.animCounter1,sleUint16),
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MKLINE(Actor,cost.animCounter2,sleByte),
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MKARRAY(Actor,palette[0],sleByte,32),
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MKLINE(Actor,mask,sleByte),
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MKLINE(Actor,visible,sleByte),
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MKLINE(Actor,animIndex,sleByte),
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MKLINE(Actor,animSpeed,sleByte),
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MKLINE(Actor,animProgress,sleByte),
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MKLINE(Actor,walkbox,sleByte),
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MKLINE(Actor,needRedraw,sleByte),
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MKLINE(Actor,needBgReset,sleByte),
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MKLINE(Actor,costumeNeedsInit,sleByte),
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MKLINE(Actor,new_1,sleInt16),
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MKLINE(Actor,new_2,sleInt16),
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MKLINE(Actor,new_3,sleByte),
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MKLINE(Actor,walkdata.destx,sleInt16),
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MKLINE(Actor,walkdata.desty,sleInt16),
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MKLINE(Actor,walkdata.destbox,sleByte),
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MKLINE(Actor,walkdata.destdir,sleByte),
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MKLINE(Actor,walkdata.curbox,sleByte),
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MKLINE(Actor,walkdata.field_7,sleByte),
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MKLINE(Actor,walkdata.x,sleInt16),
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MKLINE(Actor,walkdata.y,sleInt16),
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MKLINE(Actor,walkdata.newx,sleInt16),
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MKLINE(Actor,walkdata.newy,sleInt16),
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MKLINE(Actor,walkdata.XYFactor,sleInt32),
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MKLINE(Actor,walkdata.YXFactor,sleInt32),
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MKLINE(Actor,walkdata.xfrac,sleUint16),
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MKLINE(Actor,walkdata.yfrac,sleUint16),
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MKLINE(Actor,cost.hdr,sleUint16),
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MKARRAY(Actor,cost.a[0],sleUint16,16),
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MKARRAY(Actor,cost.b[0],sleUint16,16),
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MKARRAY(Actor,cost.c[0],sleUint16,16),
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MKARRAY(Actor,cost.d[0],sleUint16,16),
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MKEND()
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};
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const SaveLoadEntry verbEntries[] = {
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MKLINE(VerbSlot,x,sleInt16),
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MKLINE(VerbSlot,y,sleInt16),
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MKLINE(VerbSlot,right,sleInt16),
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MKLINE(VerbSlot,bottom,sleInt16),
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MKLINE(VerbSlot,oldleft,sleInt16),
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MKLINE(VerbSlot,oldtop,sleInt16),
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MKLINE(VerbSlot,oldright,sleInt16),
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MKLINE(VerbSlot,oldbottom,sleInt16),
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MKLINE(VerbSlot,verbid,sleByte),
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MKLINE(VerbSlot,color,sleByte),
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MKLINE(VerbSlot,hicolor,sleByte),
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MKLINE(VerbSlot,dimcolor,sleByte),
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MKLINE(VerbSlot,bkcolor,sleByte),
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MKLINE(VerbSlot,type,sleByte),
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MKLINE(VerbSlot,charset_nr,sleByte),
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MKLINE(VerbSlot,curmode,sleByte),
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MKLINE(VerbSlot,saveid,sleByte),
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MKLINE(VerbSlot,key,sleByte),
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MKLINE(VerbSlot,center,sleByte),
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MKLINE(VerbSlot,field_1B,sleByte),
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MKLINE(VerbSlot,imgindex,sleUint16),
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MKEND()
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};
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const SaveLoadEntry mainEntries[] = {
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MKLINE(Scumm,_scrWidthIn8Unit,sleUint16),
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MKLINE(Scumm,_scrHeight,sleUint16),
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MKLINE(Scumm,_ENCD_offs,sleUint32),
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MKLINE(Scumm,_EXCD_offs,sleUint32),
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MKLINE(Scumm,_IM00_offs,sleUint32),
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MKLINE(Scumm,_CLUT_offs,sleUint32),
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MKLINE(Scumm,_EPAL_offs,sleUint32),
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MKLINE(Scumm,_PALS_offs,sleUint32),
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MKLINE(Scumm,_curPalIndex,sleByte),
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MKLINE(Scumm,_currentRoom,sleByte),
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MKLINE(Scumm,_roomResource,sleByte),
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MKLINE(Scumm,_numObjectsInRoom,sleByte),
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MKLINE(Scumm,_currentScript,sleByte),
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MKARRAY(Scumm,_localScriptList[0],sleUint32,0x39),
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MKARRAY(Scumm,vm.localvar[0],sleUint16,NUM_SCRIPT_SLOT*17),
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MKARRAY(Scumm,_resourceMapper[0],sleByte,128),
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MKARRAY(Scumm,charset._colorMap[0],sleByte,16),
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MKARRAY(Scumm,_charsetData[0][0],sleByte,10*16),
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MKLINE(Scumm,_curExecScript,sleUint16),
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MKLINE(Scumm,camera._destPos,sleInt16),
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MKLINE(Scumm,camera._curPos,sleInt16),
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MKLINE(Scumm,camera._lastPos,sleInt16),
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MKLINE(Scumm,_screenStartStrip,sleInt16),
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MKLINE(Scumm,_screenEndStrip,sleInt16),
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MKLINE(Scumm,_scummTimer,sleInt16),
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MKLINE(Scumm,camera._mode,sleByte),
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MKLINE(Scumm,camera._follows,sleByte),
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MKLINE(Scumm,camera._leftTrigger,sleInt16),
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MKLINE(Scumm,camera._rightTrigger,sleInt16),
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MKLINE(Scumm,camera._movingToActor,sleUint16),
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MKLINE(Scumm,_actorToPrintStrFor,sleByte),
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MKLINE(Scumm,_charsetColor,sleByte),
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MKLINE(Scumm,charset._bufPos,sleByte),
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MKLINE(Scumm,_haveMsg,sleByte),
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MKLINE(Scumm,_talkDelay,sleInt16),
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MKLINE(Scumm,_defaultTalkDelay,sleInt16),
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MKLINE(Scumm,_numInMsgStack,sleInt16),
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MKLINE(Scumm,_sentenceIndex,sleByte),
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MKLINE(Scumm,vm.cutSceneStackPointer,sleByte),
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MKARRAY(Scumm,vm.cutScenePtr[0],sleUint32,5),
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MKARRAY(Scumm,vm.cutSceneScript[0],sleByte,5),
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MKARRAY(Scumm,vm.cutSceneData[0],sleInt16,5),
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MKLINE(Scumm,vm.cutSceneScriptIndex,sleInt16),
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/* nest */
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MKLINE(Scumm,_numNestedScripts,sleByte),
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MKLINE(Scumm,_userPut,sleByte),
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MKLINE(Scumm,_cursorState,sleByte),
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MKLINE(Scumm,gdi._unk4,sleByte),
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MKLINE(Scumm,gdi._currentCursor,sleByte),
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MKLINE(Scumm,_doEffect,sleByte),
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MKLINE(Scumm,_switchRoomEffect,sleByte),
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MKLINE(Scumm,_newEffect,sleByte),
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MKLINE(Scumm,_switchRoomEffect2,sleByte),
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MKLINE(Scumm,_BgNeedsRedraw,sleByte),
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MKARRAY(Scumm,actorDrawBits[0],sleUint16,200),
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MKLINE(Scumm,gdi._transparency,sleByte),
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MKARRAY(Scumm,_currentPalette[0],sleByte,768),
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/* virtscr */
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MKARRAY(Scumm,charset._buffer[0],sleByte,256),
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MKLINE(Scumm,_egoPositioned,sleByte),
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MKARRAY(Scumm,gdi._imgBufOffs[0],sleUint16,4),
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MKLINE(Scumm,gdi._numZBuffer,sleByte),
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MKLINE(Scumm,_screenEffectFlag,sleByte),
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MKLINE(Scumm,_randSeed1,sleUint32),
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MKLINE(Scumm,_randSeed2,sleUint32),
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MKLINE(Scumm,_shakeMode,sleInt16),
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MKLINE(Scumm,_keepText,sleByte),
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MKLINE(Scumm,_screenB,sleUint16),
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MKLINE(Scumm,_screenH,sleUint16),
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MKARRAY(Scumm,cost._transEffect[0],sleByte,256),
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MKEND()
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};
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const SaveLoadEntry scriptSlotEntries[] = {
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MKLINE(ScriptSlot,offs,sleUint32),
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MKLINE(ScriptSlot,delay,sleInt32),
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MKLINE(ScriptSlot,number,sleUint16),
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MKLINE(ScriptSlot,newfield,sleUint16),
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MKLINE(ScriptSlot,status,sleByte),
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MKLINE(ScriptSlot,type,sleByte),
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MKLINE(ScriptSlot,unk1,sleByte),
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MKLINE(ScriptSlot,unk2,sleByte),
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MKLINE(ScriptSlot,freezeCount,sleByte),
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MKLINE(ScriptSlot,didexec,sleByte),
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MKLINE(ScriptSlot,cutsceneOverride,sleByte),
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MKLINE(ScriptSlot,unk5,sleByte),
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MKEND()
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};
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const SaveLoadEntry nestedScriptEntries[] = {
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MKLINE(NestedScript,number,sleUint16),
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MKLINE(NestedScript,type,sleByte),
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MKLINE(NestedScript,slot,sleByte),
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MKEND()
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};
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const SaveLoadEntry sentenceTabEntries[] = {
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MKLINE(SentenceTab,unk5,sleUint8),
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MKLINE(SentenceTab,unk2,sleUint8),
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MKLINE(SentenceTab,unk4,sleUint16),
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MKLINE(SentenceTab,unk3,sleUint16),
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MKLINE(SentenceTab,unk,sleUint8),
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MKEND()
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};
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const SaveLoadEntry stringTabEntries[] = {
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MKLINE(StringTab,t_xpos,sleInt16),
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MKLINE(StringTab,t_ypos,sleInt16),
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MKLINE(StringTab,t_center,sleInt16),
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MKLINE(StringTab,t_overhead,sleInt16),
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MKLINE(StringTab,t_new3,sleInt16),
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MKLINE(StringTab,t_right,sleInt16),
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MKLINE(StringTab,t_color,sleInt16),
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MKLINE(StringTab,t_charset,sleInt16),
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MKLINE(StringTab,xpos,sleInt16),
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MKLINE(StringTab,ypos,sleInt16),
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MKLINE(StringTab,xpos2,sleInt16),
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MKLINE(StringTab,ypos2,sleInt16),
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MKLINE(StringTab,center,sleInt16),
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MKLINE(StringTab,overhead,sleInt16),
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MKLINE(StringTab,new_3,sleInt16),
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MKLINE(StringTab,right,sleInt16),
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MKLINE(StringTab,mask_top,sleInt16),
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MKLINE(StringTab,mask_bottom,sleInt16),
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MKLINE(StringTab,mask_right,sleInt16),
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MKLINE(StringTab,mask_left,sleInt16),
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MKEND()
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};
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const SaveLoadEntry colorCycleEntries[] = {
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MKLINE(ColorCycle,delay,sleUint16),
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MKLINE(ColorCycle,counter,sleUint16),
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MKLINE(ColorCycle,flags,sleUint16),
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MKLINE(ColorCycle,start,sleByte),
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MKLINE(ColorCycle,end,sleByte),
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};
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int i,j;
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_saveLoadStream = inout;
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_saveOrLoad = mode;
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saveLoadEntries(this,mainEntries);
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for (i=1; i<13; i++)
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saveLoadEntries(&actor[i],actorEntries);
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for (i=0; i<NUM_SCRIPT_SLOT; i++)
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saveLoadEntries(&vm.slot[i],scriptSlotEntries);
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for (i=0; i<_numLocalObjects; i++)
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saveLoadEntries(&_objs[i],objectEntries);
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for (i=0; i<_numVerbs; i++)
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saveLoadEntries(&_verbs[i],verbEntries);
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for (i=0; i<16; i++)
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saveLoadEntries(&vm.nest[i],nestedScriptEntries);
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for (i=0; i<6; i++)
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saveLoadEntries(&sentence[i],sentenceTabEntries);
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for (i=0; i<6; i++)
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saveLoadEntries(&string[i],stringTabEntries);
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for (i=0; i<16; i++)
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saveLoadEntries(&_colorCycle,colorCycleEntries);
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for (i=1; i<16; i++)
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if (res.mode[i]==0)
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for(j=1; j<res.num[i]; j++)
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saveLoadResource(i,j);
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saveLoadArrayOf(_objectFlagTable, _numGlobalObjects, sizeof(_objectFlagTable[0]), sleByte);
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saveLoadArrayOf(_classData, _numGlobalObjects, sizeof(_classData[0]), sleUint32);
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saveLoadArrayOf(_vars, _numVariables, sizeof(_vars[0]), sleInt16);
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saveLoadArrayOf(_bitVars, _numBitVariables>>3, 1, sleByte);
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}
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void Scumm::saveLoadResource(int type, int index) {
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byte *ptr;
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uint32 size,sizele;
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/* don't save/load these resource types */
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if (type==13 || type==12 || type==10 || res.mode[type])
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return;
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if (_saveOrLoad) {
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ptr = res.address[type][index];
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|
if (ptr==NULL) {
|
|
saveUint32(0);
|
|
return;
|
|
}
|
|
|
|
size = ((ResHeader*)ptr)->size;
|
|
|
|
saveUint32(size);
|
|
saveLoadBytes(ptr+sizeof(ResHeader),size);
|
|
|
|
if (type==5) {
|
|
saveWord(_inventory[index]);
|
|
}
|
|
} else {
|
|
size = loadUint32();
|
|
if (size) {
|
|
createResource(type, index, size);
|
|
saveLoadBytes(getResourceAddress(type, index), size);
|
|
if (type==5) {
|
|
_inventory[index] = loadWord();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void Scumm::saveLoadBytes(void *b, int len) {
|
|
if (_saveOrLoad)
|
|
fwrite(b, 1, len, _saveLoadStream);
|
|
else
|
|
fread(b, 1, len, _saveLoadStream);
|
|
}
|
|
|
|
void Scumm::saveUint32(uint32 d) {
|
|
uint32 e = FROM_LE_32(d);
|
|
saveLoadBytes(&e,4);
|
|
}
|
|
|
|
void Scumm::saveWord(uint16 d) {
|
|
uint16 e = FROM_LE_16(d);
|
|
saveLoadBytes(&e,2);
|
|
}
|
|
|
|
void Scumm::saveByte(byte b) {
|
|
saveLoadBytes(&b,1);
|
|
}
|
|
|
|
uint32 Scumm::loadUint32() {
|
|
uint32 e;
|
|
saveLoadBytes(&e,4);
|
|
return FROM_LE_32(e);
|
|
}
|
|
|
|
uint16 Scumm::loadWord() {
|
|
uint16 e;
|
|
saveLoadBytes(&e,2);
|
|
return FROM_LE_16(e);
|
|
}
|
|
|
|
byte Scumm::loadByte() {
|
|
byte e;
|
|
saveLoadBytes(&e,1);
|
|
return e;
|
|
}
|
|
|
|
void Scumm::saveLoadArrayOf(void *b, int len, int datasize, byte filetype) {
|
|
byte *at = (byte*)b;
|
|
uint32 data;
|
|
|
|
while (--len>=0) {
|
|
if (_saveOrLoad) {
|
|
/* saving */
|
|
if (datasize==1) {
|
|
data = *(byte*)at;
|
|
at += 1;
|
|
} else if (datasize==2) {
|
|
data = *(uint16*)at;
|
|
at += 2;
|
|
} else if (datasize==4) {
|
|
data = *(uint32*)at;
|
|
at += 4;
|
|
} else {
|
|
error("saveLoadArrayOf: invalid size %d", datasize);
|
|
}
|
|
switch(filetype) {
|
|
case sleByte: saveByte(data); break;
|
|
case sleUint16:
|
|
case sleInt16:saveWord(data); break;
|
|
case sleInt32:
|
|
case sleUint32:saveUint32(data); break;
|
|
default:
|
|
error("saveLoadArrayOf: invalid filetype %d", filetype);
|
|
}
|
|
} else {
|
|
/* loading */
|
|
switch(filetype) {
|
|
case sleByte: data = loadByte(); break;
|
|
case sleUint16: data = loadWord(); break;
|
|
case sleInt16: data = (int16)loadWord(); break;
|
|
case sleUint32: data = loadUint32(); break;
|
|
case sleInt32: data = (int32)loadUint32(); break;
|
|
default:
|
|
error("saveLoadArrayOf: invalid filetype %d", filetype);
|
|
}
|
|
if (datasize==1) {
|
|
*(byte*)at = data;
|
|
at += 1;
|
|
} else if (datasize==2) {
|
|
*(uint16*)at = data;
|
|
at += 2;
|
|
} else if (datasize==4) {
|
|
*(uint32*)at = data;
|
|
at += 4;
|
|
} else {
|
|
error("saveLoadArrayOf: invalid size %d", datasize);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
void Scumm::saveLoadEntries(void *d, const SaveLoadEntry *sle) {
|
|
int replen;
|
|
byte type;
|
|
byte *at;
|
|
int size;
|
|
int value;
|
|
|
|
while(sle->offs != 0xFFFF) {
|
|
at = (byte*)d + sle->offs;
|
|
size = sle->size;
|
|
type = sle->type;
|
|
replen = 1;
|
|
if (type&128) {
|
|
sle++;
|
|
replen = sle->offs;
|
|
type&=~128;
|
|
}
|
|
sle++;
|
|
saveLoadArrayOf(at, replen, size, type);
|
|
}
|
|
}
|
|
|