/* ScummVM - Scumm Interpreter * Copyright (C) 2001 Ludvig Strigeus * Copyright (C) 2001/2002 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 "scumm.h" bool Scumm::getClass(int obj, int cls) { checkRange(_numGlobalObjects-1, 0, obj, "Object %d out of range in getClass"); cls &= 0x7F; checkRange(32,1,cls,"Class %d out of range in getClass"); return (_classData[obj] & (1<<(cls-1))) != 0; } void Scumm::putClass(int obj, int cls, bool set) { checkRange(_numGlobalObjects-1, 0, obj, "Object %d out of range in putClass"); cls &= 0x7F; checkRange(32,1,cls,"Class %d out of range in getClass"); if (set) _classData[obj] |= (1<<(cls-1)); else _classData[obj] &= ~(1<<(cls-1)); } int Scumm::getOwner(int obj) { checkRange(_numGlobalObjects-1, 0, obj, "Object %d out of range in getOwner"); return _objectOwnerTable[obj]; } void Scumm::putOwner(int act, int owner) { checkRange(_numGlobalObjects-1, 0, act, "Object %d out of range in putOwner"); checkRange(0xFF, 0, owner, "Owner %d out of range in putOwner"); _objectOwnerTable[act] = owner; } int Scumm::getState(int act) { checkRange(_numGlobalObjects-1, 0, act, "Object %d out of range in getState"); return _objectStateTable[act]; } void Scumm::putState(int act, int state) { checkRange(_numGlobalObjects-1, 0, act, "Object %d out of range in putState"); checkRange(0xFF, 0, state, "State %d out of range in putState"); _objectStateTable[act] = state; } int Scumm::getObjectRoom(int obj) { checkRange(_numGlobalObjects-1, 0, obj, "Object %d out of range in getObjectRoom"); return _objectRoomTable[obj]; } int Scumm::getObjectIndex(int object) { int i; /* OF_OWNER_ROOM should be 0xFF for full throttle, else 0xF */ if (_objectOwnerTable[object] != OF_OWNER_ROOM) { for (i=0; i<_maxInventoryItems; i++) if (_inventory[i] == object) return i; return -1; } else { for (i=_numObjectsInRoom; i>0; i--) { if (_objs[i].obj_nr==object) return i; } return -1; } } int Scumm::whereIsObject(int object) { int i; if (object >= _numGlobalObjects) return WIO_NOT_FOUND; if (_objectOwnerTable[object] != OF_OWNER_ROOM) { for (i=0; i<_maxInventoryItems; i++) if (_inventory[i] == object) return WIO_INVENTORY; return WIO_NOT_FOUND; } for (i=_numObjectsInRoom; i>0; i--) if (_objs[i].obj_nr == object) { if (_objs[i].fl_object_index) return WIO_FLOBJECT; return WIO_ROOM; } return WIO_NOT_FOUND; } int Scumm::getObjectOrActorXY(int object) { if (object < NUM_ACTORS) { return getActorXYPos(derefActorSafe(object, "getObjectOrActorXY")); } switch(whereIsObject(object)) { case WIO_NOT_FOUND: return -1; case WIO_INVENTORY: return getActorXYPos(derefActorSafe(_objectOwnerTable[object],"getObjectOrActorXY(2)")); } getObjectXYPos(object); return 0; } /* Return the position of an object. Returns X, Y and direction in angles */ void Scumm::getObjectXYPos(int object) { ObjectData *od = &_objs[getObjectIndex(object)]; int state; byte *ptr; ImageHeader *imhd; int x,y; if(!(_features & GF_SMALL_HEADER)) { if (_features&GF_AFTER_V6) { state = getState(object)-1; if (state<0) state = 0; if (od->fl_object_index) { ptr = getResourceAddress(rtFlObject, od->fl_object_index); ptr = findResource(MKID('OBIM'), ptr); } else { ptr = getResourceAddress(rtRoom, _roomResource); ptr += od->offs_obim_to_room; } assert(ptr); imhd = (ImageHeader*)findResourceData(MKID('IMHD'), ptr); if( _features & GF_AFTER_V7) { x = od->x_pos + (int16)READ_LE_UINT16(&imhd->v7.hotspot[state].x); y = od->y_pos + (int16)READ_LE_UINT16(&imhd->v7.hotspot[state].y); } else { x = od->x_pos + (int16)READ_LE_UINT16(&imhd->old.hotspot[state].x); y = od->y_pos + (int16)READ_LE_UINT16(&imhd->old.hotspot[state].y); } } else { x = od->walk_x; y = od->walk_y; } _xPos = x; _yPos = y; _dir = oldDirToNewDir(od->actordir&3); } else { x = od->walk_x; y = od->walk_y; _xPos = x; _yPos = y; _dir= oldDirToNewDir(od->actordir&3); } } int Scumm::getObjActToObjActDist(int a, int b) { int x,y; Actor *acta = NULL; Actor *actb = NULL; if (aroom==actb->room && acta->room && acta->room != _currentRoom) return 0xFF; if (getObjectOrActorXY(a)==-1) return 0xFF; x = _xPos; y = _yPos; if (getObjectOrActorXY(b)==-1) return 0xFF; if (acta) { AdjustBoxResult r = adjustXYToBeInBox(acta, _xPos, _yPos, 0); _xPos = r.x; _yPos = r.y; } y = abs(y-_yPos); x = abs(x-_xPos); if (y>x) x=y; return x; } int Scumm::findObject(int x, int y) { int i,b; byte a; for (i=1; i<=_numObjectsInRoom; i++) { if (!_objs[i].obj_nr || getClass(_objs[i].obj_nr, 32)) continue; b = i; do { a = _objs[b].parentstate; b = _objs[b].parent; if (b==0) { if (_objs[i].x_pos <= x && _objs[i].width + _objs[i].x_pos > x && _objs[i].y_pos <= y && _objs[i].height + _objs[i].y_pos > y) return _objs[i].obj_nr; break; } } while ( _objs[b].state == a); } return 0; } void Scumm::drawRoomObject(int i, int arg) { ObjectData *od; byte a; od = &_objs[i]; if (!od->obj_nr || !od->state) return; do { a = od->parentstate; if (!od->parent) { drawObject(i, arg); break; } od = &_objs[od->parent]; } while (od->state==a); } void Scumm::drawRoomObjects(int arg) { int i; if (_features & GF_DRAWOBJ_OTHER_ORDER) { for(i=1; i<=_numObjectsInRoom; i++) drawRoomObject(i,arg); } else { for(i=_numObjectsInRoom; i!=0; i--) drawRoomObject(i,arg); } } const uint32 IMxx_tags[] = { MKID('IM00'), MKID('IM01'), MKID('IM02'), MKID('IM03'), MKID('IM04'), MKID('IM05'), MKID('IM06'), MKID('IM07'), MKID('IM08'), MKID('IM09'), MKID('IM0A'), MKID('IM0B'), MKID('IM0C'), MKID('IM0D'), MKID('IM0E'), MKID('IM0F') }; void Scumm::drawObject(int obj, int arg) { ObjectData *od; int xpos, ypos, height, width; byte *ptr; int x,a,numstrip; int tmp; if (_BgNeedsRedraw) arg = 0; _curVirtScreen = &virtscr[0]; od = &_objs[obj]; xpos = od->x_pos>>3; ypos = od->y_pos; width = od->width>>3; height = od->height &= 0xF8; // Ender if (width==0 || xpos > _screenEndStrip || xpos + width < _screenStartStrip) return; if (od->fl_object_index) { ptr = getResourceAddress(rtFlObject, od->fl_object_index); ptr = findResource(MKID('OBIM'), ptr); } else { ptr = getResourceAddress(rtRoom, _roomResource); ptr = ptr + od->offs_obim_to_room; } if(_features & GF_SMALL_HEADER) ptr +=8; else ptr = findResource(IMxx_tags[getState(od->obj_nr)], ptr); if (!ptr) return; x = 0xFFFF; for (a=numstrip=0; a _screenEndStrip) continue; gfxUsageBits[tmp] |= 0x80000000; if (tmp < x) x = tmp; numstrip++; } if (numstrip!=0) { byte flags = Gdi::dbAllowMaskOr; if (_features&GF_AFTER_V7 && getClass(od->obj_nr, 22)) flags |= Gdi::dbDrawMaskOnBoth; gdi.drawBitmap(ptr, _curVirtScreen, x, ypos, height, x-xpos, numstrip, flags); } } void Scumm::loadRoomObjects() { int i,j; ObjectData *od; byte *ptr; uint16 obim_id; byte *room,*searchptr; ImageHeader *imhd; RoomHeader *roomhdr; CodeHeader *cdhd; CHECK_HEAP room = getResourceAddress(rtRoom, _roomResource); roomhdr = (RoomHeader*)findResourceData(MKID('RMHD'), room); if(_features & GF_AFTER_V7) _numObjectsInRoom = READ_LE_UINT16(&(roomhdr->v7.numObjects)); else _numObjectsInRoom = READ_LE_UINT16(&(roomhdr->old.numObjects)); if (_numObjectsInRoom == 0) return; if (_numObjectsInRoom > _numLocalObjects) error("More than %d objects in room %d", _numLocalObjects, _roomResource); od = &_objs[1]; searchptr = room; for (i=0; i<_numObjectsInRoom; i++,od++) { ptr = findResource(MKID('OBCD'), searchptr); if (ptr==NULL) error("Room %d missing object code block(s)", _roomResource); od->offs_obcd_to_room = ptr - room; cdhd = (CodeHeader*)findResourceData(MKID('CDHD'), ptr); if(_features & GF_AFTER_V7) od->obj_nr = READ_LE_UINT16(&(cdhd->v7.obj_id)); else if(_features & GF_AFTER_V6) od->obj_nr = READ_LE_UINT16(&(cdhd->v6.obj_id)); else od->obj_nr = READ_LE_UINT16(&(cdhd->v5.obj_id)); #ifdef DUMP_SCRIPTS do { char buf[32]; sprintf(buf,"roomobj-%d-",_roomResource); dumpResource(buf, od->obj_nr, ptr); } while (0); #endif searchptr = NULL; } searchptr = room; for (i=0; i<_numObjectsInRoom; i++) { ptr = findResource(MKID('OBIM'), searchptr); if (ptr==NULL) error("Room %d missing image blocks(s)", _roomResource); imhd = (ImageHeader*)findResourceData(MKID('IMHD'), ptr); if (_features & GF_AFTER_V7) obim_id = READ_LE_UINT16(&imhd->v7.obj_id); else obim_id = READ_LE_UINT16(&imhd->old.obj_id); for(j=1; j<=_numObjectsInRoom; j++) { if (_objs[j].obj_nr==obim_id) _objs[j].offs_obim_to_room = ptr - room; } searchptr = NULL; } od = &_objs[1]; for (i=1; i<=_numObjectsInRoom; i++,od++) { setupRoomObject(od, room); } CHECK_HEAP } void Scumm::loadRoomObjectsSmall() { int i,j; ObjectData *od; byte *ptr; uint16 obim_id; byte *room,*searchptr; RoomHeader *roomhdr; CHECK_HEAP room = getResourceAddress(rtRoom, _roomResource); roomhdr = (RoomHeader*)findResourceData(MKID('RMHD'), room); _numObjectsInRoom = READ_LE_UINT16(&(roomhdr->old.numObjects)); if (_numObjectsInRoom == 0) return; if (_numObjectsInRoom > _numLocalObjects) error("More than %d objects in room %d", _numLocalObjects, _roomResource); od = &_objs[1]; searchptr = room; for (i=0; i<_numObjectsInRoom; i++,od++) { ptr = findResourceSmall(MKID('OBCD'), searchptr); if (ptr==NULL) error("Room %d missing object code block(s)", _roomResource); od->offs_obcd_to_room = ptr - room; od->obj_nr = READ_LE_UINT16(ptr+6); #ifdef DUMP_SCRIPTS do { char buf[32]; sprintf(buf,"roomobj-%d-",_roomResource); dumpResource(buf, od->obj_nr, ptr); } while (0); #endif searchptr = NULL; } searchptr = room; for (i=0; i<_numObjectsInRoom; i++) { ptr = findResourceSmall(MKID('OBIM'), searchptr); if (ptr==NULL) error("Room %d missing image blocks(s)", _roomResource); obim_id = READ_LE_UINT16(ptr+6); for(j=1; j<=_numObjectsInRoom; j++) { if (_objs[j].obj_nr==obim_id) _objs[j].offs_obim_to_room = ptr - room; } searchptr = NULL; } od = &_objs[1]; for (i=1; i<=_numObjectsInRoom; i++,od++) { setupRoomObject(od, room); } CHECK_HEAP } void Scumm::setupRoomObject(ObjectData *od, byte *room) { CodeHeader *cdhd; ImageHeader *imhd; if(_features & GF_SMALL_HEADER) { byte *ptr = room + od->offs_obcd_to_room; od->obj_nr = READ_LE_UINT16(ptr+6); // ok od->width = *(ptr+11)<<3; // ok od->x_pos = *(ptr+9)<<3; // ok if(*(ptr+10) & 0x80) { od->parentstate = 1; // it's 0x10 in the original code } else { od->parentstate = 0; } od->y_pos = ((*(ptr+10))&0x7F)<<3; od->parent = *(ptr+12); od->walk_x = READ_LE_UINT16(ptr+13); od->walk_y = READ_LE_UINT16(ptr+15); od->actordir = (*(ptr+17))&7; od->height = *(ptr+17); // ok return; } cdhd = (CodeHeader*)findResourceData(MKID('CDHD'), room + od->offs_obcd_to_room); if(_features & GF_AFTER_V7) od->obj_nr = READ_LE_UINT16(&(cdhd->v7.obj_id)); else if(_features & GF_AFTER_V6) od->obj_nr = READ_LE_UINT16(&(cdhd->v6.obj_id)); else od->obj_nr = READ_LE_UINT16(&(cdhd->v5.obj_id)); if(!(_features & GF_AFTER_V7)) { if (_features & GF_AFTER_V6) { od->width = READ_LE_UINT16(&cdhd->v6.w); od->height = READ_LE_UINT16(&cdhd->v6.h); od->x_pos = ((int16)READ_LE_UINT16(&cdhd->v6.x)); od->y_pos = ((int16)READ_LE_UINT16(&cdhd->v6.y)); if (cdhd->v6.flags == 0x80) { od->parentstate = 1; } else { od->parentstate = (cdhd->v6.flags&0xF); } od->parent = cdhd->v6.parent; od->actordir = cdhd->v6.actordir; } else { od->width = cdhd->v5.w<<3; od->height = cdhd->v5.h<<3; od->x_pos = cdhd->v5.x<<3; od->y_pos = cdhd->v5.y<<3; if (cdhd->v5.flags == 0x80) { od->parentstate = 1; } else { od->parentstate = (cdhd->v5.flags&0xF); } od->parent = cdhd->v5.parent; od->walk_x = READ_LE_UINT16(&cdhd->v5.walk_x); od->walk_y = READ_LE_UINT16(&cdhd->v5.walk_y); od->actordir = cdhd->v5.actordir; } } else { od->parent = cdhd->v7.parent; od->parentstate = cdhd->v7.parentstate; imhd = (ImageHeader*)findResourceData(MKID('IMHD'), room + od->offs_obim_to_room); od->x_pos = READ_LE_UINT16(&imhd->v7.x_pos); od->y_pos = READ_LE_UINT16(&imhd->v7.y_pos); od->width = READ_LE_UINT16(&imhd->v7.width); od->height = READ_LE_UINT16(&imhd->v7.height); od->actordir = READ_LE_UINT16(&imhd->v7.actordir); } od->fl_object_index = 0; } void Scumm::fixObjectFlags() { int i; ObjectData *od = &_objs[1]; for (i=1; i<=_numObjectsInRoom; i++,od++) { od->state = _objectStateTable[od->obj_nr]; } } void Scumm::processDrawQue() { int i, j; for (i=0; i<_drawObjectQueNr; i++) { j = _drawObjectQue[i]; if (j) drawObject(j,0); } _drawObjectQueNr = 0; } void Scumm::clearOwnerOf(int obj) { int i,j; uint16 *a; stopObjectScript(obj); if (getOwner(obj)==OF_OWNER_ROOM) { i = 0; do { if (_objs[i].obj_nr==obj) { if (!_objs[i].fl_object_index) return; nukeResource(rtFlObject, _objs[i].fl_object_index); _objs[i].obj_nr = 0; _objs[i].fl_object_index = 0; } } while(++i <= _numObjectsInRoom); return; } for (i=1; i<_maxInventoryItems; i++) { if (_inventory[i] == obj) { j = whereIsObject(obj); if (j==WIO_INVENTORY) { nukeResource(rtInventory, i); _inventory[i] = 0; } a = &_inventory[1]; for (i=1; i < _maxInventoryItems-1; i++,a++) { if (!a[0] && a[1]) { a[0] = a[1]; a[1] = 0; _baseInventoryItems[i] = _baseInventoryItems[i+1]; _baseInventoryItems[i+1] = NULL; } } return; } } } void Scumm::removeObjectFromRoom(int obj) { int i,cnt; uint32 *ptr; for(i=1; i<=_numObjectsInRoom; i++) { if (_objs[i].obj_nr==(uint16)obj) { if (_objs[i].width != 0) { ptr = &gfxUsageBits[_objs[i].x_pos>>3]; cnt = _objs[i].width>>3; do { *ptr++ |= 0x80000000; } while (--cnt); } _BgNeedsRedraw = true; return; } } } void Scumm::addObjectToDrawQue(int object) { _drawObjectQue[_drawObjectQueNr++] = object; if ((unsigned int)_drawObjectQueNr > sizeof(_drawObjectQue)/sizeof(_drawObjectQue[0])) error("Draw Object Que overflow"); } void Scumm::clearDrawObjectQueue() { _drawObjectQueNr = 0; } byte *Scumm::getObjOrActorName(int obj) { byte *objptr; if (obj < NUM_ACTORS) return getActorName(derefActorSafe(obj, "getObjOrActorName")); if(_features & GF_SMALL_HEADER) { byte offset; objptr = getOBCDFromObject(obj); if (objptr) offset = *(objptr+18); return(objptr+offset); } objptr = getOBCDFromObject(obj); if (objptr==NULL) return (byte*)" "; return findResourceData(MKID('OBNA'), objptr); } uint32 Scumm::getOBCDOffs(int object) { int i; if (_objectOwnerTable[object] != OF_OWNER_ROOM) return 0; for (i=_numObjectsInRoom; i>0; i--) { if (_objs[i].obj_nr == object) { if (_objs[i].fl_object_index!=0) return 8; return _objs[i].offs_obcd_to_room; } } return 0; } byte *Scumm::getOBCDFromObject(int obj) { int i; if (_objectOwnerTable[obj] != OF_OWNER_ROOM) { for(i=0; i<_maxInventoryItems; i++) { if (_inventory[i] == obj) return getResourceAddress(rtInventory, i); } } else { for(i=_numObjectsInRoom; i>0; --i) { if (_objs[i].obj_nr==obj) { if (_objs[i].fl_object_index) return getResourceAddress(rtFlObject, _objs[i].fl_object_index)+8; return getResourceAddress(rtRoom, _roomResource) + _objs[i].offs_obcd_to_room; } } } return 0; } void Scumm::addObjectToInventory(uint obj, uint room) { int i, slot; uint32 size; byte *obcdptr,*ptr; FindObjectInRoom foir; debug(1,"Adding object %d from room %d into inventory", obj, room); CHECK_HEAP if (whereIsObject(obj)==WIO_FLOBJECT) { i = getObjectIndex(obj); ptr = getResourceAddress(rtFlObject, _objs[i].fl_object_index) + 8; size = READ_BE_UINT32_UNALIGNED(ptr+4); slot = getInventorySlot(); _inventory[slot] = obj; createResource(rtInventory, slot, size); ptr = getResourceAddress(rtFlObject, _objs[i].fl_object_index) + 8; memcpy(getResourceAddress(rtInventory, slot), ptr, size); } else { findObjectInRoom(&foir, foCodeHeader, obj, room); if(_features & GF_SMALL_HEADER ) size = READ_LE_UINT32(foir.obcd); else size = READ_BE_UINT32_UNALIGNED(foir.obcd+4); slot = getInventorySlot(); _inventory[slot] = obj; createResource(rtInventory, slot, size); obcdptr = getResourceAddress(rtRoom, room) - foir.roomptr + foir.obcd; memcpy(getResourceAddress(rtInventory,slot),obcdptr,size); } CHECK_HEAP } void Scumm::findObjectInRoom(FindObjectInRoom *fo, byte findWhat, uint id, uint room) { CodeHeader *cdhd; int i, numobj; byte *roomptr,*obcdptr,*obimptr,*searchptr; RoomHeader *roomhdr; ImageHeader *imhd; int id2; int id3; if (findWhat&foCheckAlreadyLoaded && getObjectIndex(id) != -1) { fo->obcd = obcdptr = getOBCDFromObject(id); assert((byte*)obcdptr > (byte*)256); fo->obim = obimptr = obcdptr + READ_BE_UINT32_UNALIGNED(&((ResHdr*)obcdptr)->size); fo->cdhd = (CodeHeader*)findResourceData(MKID('CDHD'), obcdptr); fo->imhd = (ImageHeader*)findResourceData(MKID('IMHD'), obimptr); return; } fo->roomptr = roomptr = getResourceAddress(rtRoom, room); roomhdr = (RoomHeader*)findResourceData(MKID('RMHD'), roomptr); if(_features & GF_AFTER_V7) numobj = READ_LE_UINT16(&(roomhdr->v7.numObjects)); else numobj = READ_LE_UINT16(&(roomhdr->old.numObjects)); if (numobj==0) error("findObjectInRoom: No object found in room %d", room); if (numobj > _numLocalObjects) error("findObjectInRoom: More (%d) than %d objects in room %d", numobj, _numLocalObjects, room); if (findWhat & foCodeHeader) { searchptr = roomptr; for (i=0;;) { if(_features & GF_SMALL_HEADER) obcdptr = findResourceSmall(MKID('OBCD'), searchptr); else obcdptr = findResource(MKID('OBCD'), searchptr); if(obcdptr==NULL) error("findObjectInRoom: Not enough code blocks in room %d", room); if ( _features & GF_SMALL_HEADER) { if ( READ_LE_UINT16(obcdptr+6) == (uint16)id) { fo->cdhd = NULL; fo->obcd = obcdptr; break; } } else { cdhd = (CodeHeader*)findResourceData(MKID('CDHD'), obcdptr); if ( _features & GF_AFTER_V7) id2 = READ_LE_UINT16(&(cdhd->v7.obj_id)); else if( _features & GF_AFTER_V6) id2 = READ_LE_UINT16(&(cdhd->v6.obj_id)); else id2 = READ_LE_UINT16(&(cdhd->v5.obj_id)); if ( id2 == (uint16)id) { fo->cdhd = cdhd; fo->obcd = obcdptr; break; } } if (++i == numobj) error("findObjectInRoom: Object %d not found in room %d", id, room); searchptr = NULL; } } if (findWhat & foImageHeader) { searchptr = roomptr; for(i=0;;) { if(_features & GF_SMALL_HEADER) obimptr = findResourceSmall(MKID('OBIM'), searchptr); else obimptr = findResource(MKID('OBIM'), searchptr); if (obimptr==NULL) error("findObjectInRoom: Not enough image blocks in room %d", room); imhd = (ImageHeader*)findResourceData(MKID('IMHD'), obimptr); if(_features & GF_SMALL_HEADER){ if (READ_LE_UINT16(obimptr+6) == (uint16)id) { fo->obim = obimptr; fo->imhd = imhd; break; } } else { if(_features & GF_AFTER_V7) id3 = READ_LE_UINT16(&imhd->v7.obj_id); else id3 = READ_LE_UINT16(&imhd->old.obj_id); if (id3 == (uint16)id) { fo->obim = obimptr; fo->imhd = imhd; break; } } if (++i==numobj) error("findObjectInRoom: Object %d image not found in room %d", id, room); searchptr = NULL; } } } int Scumm::getInventorySlot() { int i; for (i=1; i<=_maxInventoryItems; i++) { if (_inventory[i]==0) return i; } error("Inventory full, %d max items", _maxInventoryItems); } void Scumm::SamInventoryHack(int obj) { // FIXME: Sam and Max hack int base = 6; while (base < 80) { int value = readArray(178, 0, base); if (value == obj) return; if (value == 0) { _vars[179]++; printf("Adding item %d to slot %d\n", obj, base); writeArray(178, 0, base, obj); return; } base++; } } void Scumm::setOwnerOf(int obj, int owner) { ScriptSlot *ss; if (owner==0) { clearOwnerOf(obj); ss = &vm.slot[_currentScript]; if (ss->where==WIO_INVENTORY && _inventory[ss->number]==obj) { putOwner(obj, 0); runHook(0); stopObjectCode(); return; } } if ((owner == 2) && (_gameId == GID_SAMNMAX)) SamInventoryHack(obj); putOwner(obj, owner); runHook(0); } int Scumm::getObjX(int obj) { if (obj < NUM_ACTORS) { if (obj<1) return 0; /* fix for indy4's map */ return derefActorSafe(obj,"getObjX")->x; } else { if (whereIsObject(obj)==WIO_NOT_FOUND) return -1; getObjectOrActorXY(obj); return _xPos; } } int Scumm::getObjY(int obj) { if (obj < NUM_ACTORS) { if (obj<1) return 0; /* fix for indy4's map */ return derefActorSafe(obj,"getObjY")->y; } else { if (whereIsObject(obj)==WIO_NOT_FOUND) return -1; getObjectOrActorXY(obj); return _yPos; } } int Scumm::getObjOldDir(int obj) { if (obj < NUM_ACTORS) { return newDirToOldDir(derefActorSafe(obj,"getObjOldDir")->facing); } else { getObjectXYPos(obj); return _dir; } } int Scumm::getObjNewDir(int obj) { if (obj < NUM_ACTORS) { return derefActorSafe(obj,"getObjNewDir")->facing; } else { getObjectXYPos(obj); return oldDirToNewDir(_dir); } } int Scumm::findInventory(int owner, int idx) { int count = 1, i, obj; for (i=0; i!=_maxInventoryItems; i++) { obj = _inventory[i]; if (obj && getOwner(obj)==owner && count++ == idx) return obj; } return 0; } int Scumm::getInventoryCount(int owner) { int i,obj; int count = 0; for (i=0; i!=_maxInventoryItems; i++) { obj = _inventory[i]; if (obj && getOwner(obj) == owner) count++; } return count; } void Scumm::setObjectState(int obj, int state, int x, int y) { int i; i = getObjectIndex(obj); if (i==-1) { warning("setObjectState: no such object"); return; } if (x != -1) { _objs[i].x_pos = x<<3; _objs[i].y_pos = y<<3; } addObjectToDrawQue(i); putState(obj, state); } static int getDist(int x, int y, int x2, int y2) { int a = abs(y-y2); int b = abs(x-x2); if (a>b) return a; return b; } int Scumm::getDistanceBetween(bool is_obj_1, int b, int c, bool is_obj_2, int e, int f) { int i,j; int x,y; int x2,y2; j = i = 0xFF; if (is_obj_1) { if (getObjectOrActorXY(b)==-1) return -1; if (b < NUM_ACTORS) i = derefActorSafe(b, "unkObjProc1")->scalex; x = _xPos; y = _yPos; } else { x = b; y = c; } if (is_obj_2) { if (getObjectOrActorXY(e)==-1) return -1; if (e < NUM_ACTORS) j = derefActorSafe(e, "unkObjProc1(2)")->scalex; x2 = _xPos; y2 = _yPos; } else { x2 = e; y2 = f; } return getDist(x,y,x2,y2) * 0xFF / ((i + j)>>1); } void Scumm::setCursorImg(uint img, uint room, uint imgindex) { int w,h; byte *dataptr,*bomp; uint32 size; FindObjectInRoom foir; if (room==(uint)-1) room = getObjectRoom(img); findObjectInRoom(&foir, foCodeHeader | foImageHeader | foCheckAlreadyLoaded, img, room); if(_features & GF_AFTER_V7) setCursorHotspot2( READ_LE_UINT16(&foir.imhd->v7.hotspot[0].x), READ_LE_UINT16(&foir.imhd->v7.hotspot[0].y)); else setCursorHotspot2( READ_LE_UINT16(&foir.imhd->old.hotspot[0].x), READ_LE_UINT16(&foir.imhd->old.hotspot[0].y)); if(!(_features & GF_AFTER_V7)) { w = READ_LE_UINT16(&foir.cdhd->v6.w)>>3; h = READ_LE_UINT16(&foir.cdhd->v6.h)>>3; } else { w = READ_LE_UINT16(&foir.imhd->v7.width)>>3; h = READ_LE_UINT16(&foir.imhd->v7.height)>>3; } dataptr = findResource(IMxx_tags[imgindex],foir.obim); if (dataptr==NULL) error("setCursorImg: No such image"); size = READ_BE_UINT32_UNALIGNED(dataptr+4); if (size > sizeof(_grabbedCursor)) error("setCursorImg: Cursor image too large"); if ((bomp = findResource(MKID('BOMP'), dataptr)) != NULL) useBompCursor(bomp, w, h); else useIm01Cursor(dataptr, w, h); } void Scumm::nukeFlObjects(int min, int max) { ObjectData *od; int i; warning("nukeFlObjects(%d,%d)", min, max); for (i=_numObjectsInRoom,od=_objs; --i>=0; od++) if (od->fl_object_index && od->obj_nr>=min && od->obj_nr<=max) { nukeResource(rtFlObject, od->fl_object_index); od->obj_nr = 0; od->fl_object_index = 0; } } void Scumm::enqueueObject(int a, int b, int c, int d, int e, int f, int g, int h, int mode) { EnqueuedObject *eo; ObjectData *od; if (_enqueuePos==sizeof(_enqueuedObjects)/sizeof(_enqueuedObjects[0])) error("enqueueObject: overflow"); eo = &_enqueuedObjects[_enqueuePos++]; eo->a = a; eo->b = _enqueue_b; eo->c = _enqueue_c; eo->d = _enqueue_d; eo->e = _enqueue_e; eo->x = b; eo->y = c; if (d==0) { od = &_objs[getObjectIndex(a)]; eo->width = od->width; } else { eo->width = d; } if (e==0) { od = &_objs[getObjectIndex(a)]; eo->height = od->height; } else { eo->height = e; } eo->j = f; eo->k = g; eo->l = h; } void Scumm::drawEnqueuedObjects() { EnqueuedObject *eo; int i; eo = _enqueuedObjects; for(i=0; i < _enqueuePos; i++,eo++) { drawEnqueuedObject(eo); } } void Scumm::drawEnqueuedObject(EnqueuedObject *eo) { VirtScreen *vs; byte *roomptr,*bomp; byte *ptr; int idx; ObjectData *od; BompDrawData bdd; vs = &virtscr[0]; _lastXstart = vs->xstart; if (eo->l==0) { roomptr = getResourceAddress(1, _roomResource); idx = getObjectIndex(eo->a); assert(idx != -1); ptr = roomptr + _objs[idx].offs_obim_to_room; } else if (eo->a!=0) { od = &_objs[getObjectIndex(eo->a)]; ptr = getResourceAddress(rtFlObject, od->fl_object_index); assert(ptr); ptr = findResource(MKID('OBIM'), ptr); } else { warning("drawEnqueuedObject: invalid"); return; } if(eo->l == 0) eo->l = 1; assert(ptr); ptr = findResource(IMxx_tags[eo->l], ptr); // assert(ptr); if (!ptr) /* FIXME: Sam and Max highway subgame */ return; bomp = findResourceData(MKID('BOMP'), ptr); bdd.srcwidth = READ_LE_UINT16(&((BompHeader*)bomp)->width); bdd.srcheight = READ_LE_UINT16(&((BompHeader*)bomp)->height); bdd.out = getResourceAddress(rtBuffer, vs->number+1) + vs->xstart; bdd.outwidth = 320; bdd.outheight = vs->height; bdd.dataptr = bomp + 10; bdd.x = eo->x; bdd.y = eo->y; bdd.scale_x = (unsigned char)eo->j; bdd.scale_y = (unsigned char)eo->k; updateDirtyRect(vs->number, bdd.x, bdd.x+bdd.srcwidth, bdd.y, bdd.y+bdd.srcheight, 0); if (eo->a) { drawBomp(&bdd); } } void Scumm::removeEnqueuedObjects() { EnqueuedObject *eo; int i; eo = _enqueuedObjects; for(i=0; i < _enqueuePos; i++,eo++) { removeEnqueuedObject(eo); } clearEnqueue(); } void Scumm::removeEnqueuedObject(EnqueuedObject *eo) { restoreBG(eo->x, eo->y, eo->x + eo->width, eo->y + eo->height); } int Scumm::findFlObjectSlot() { int i; for(i=1; i<_maxFLObject; i++) { if (_baseFLObject[i] == NULL) return i; } error("findFlObjectSlot: Out of FLObject slots"); } void Scumm::loadFlObject(uint object, uint room) { FindObjectInRoom foir; int slot; ObjectData *od; byte *flob,*roomptr; uint32 obcd_size, obim_size, flob_size; /* Don't load an already loaded object */ if (whereIsObject(object) != WIO_NOT_FOUND) return; /* Locate the object in the room resource */ findObjectInRoom(&foir, foImageHeader | foCodeHeader, object, room); /* Add an entry for the new floating object in the local object table */ if (++_numObjectsInRoom > _numLocalObjects) error("loadFlObject: Local Object Table overflow"); od = &_objs[_numObjectsInRoom]; /* Setup sizes */ obcd_size = READ_BE_UINT32_UNALIGNED(foir.obcd + 4); od->offs_obcd_to_room = 8; od->offs_obim_to_room = obcd_size + 8; obim_size = READ_BE_UINT32_UNALIGNED(foir.obim + 4); flob_size = obcd_size + obim_size + 8; /* Allocate slot & memory for floating object */ slot = findFlObjectSlot(); createResource(rtFlObject, slot, flob_size); /* Copy object code + object image to floating object */ roomptr = getResourceAddress(rtRoom, room); flob = getResourceAddress(rtFlObject, slot); ((uint32*)flob)[0] = MKID('FLOB'); ((uint32*)flob)[1] = TO_BE_32(flob_size); memcpy(flob + 8, roomptr - foir.roomptr + foir.obcd, obcd_size); memcpy(flob + 8 + obcd_size, roomptr - foir.roomptr + foir.obim, obim_size); /* Setup local object flags */ setupRoomObject(od, flob); od->fl_object_index = slot; }