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/* ScummVM - Scumm Interpreter
* Copyright (C) 2001 Ludvig Strigeus
* Copyright (C) 2001-2006 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* $URL$
* $Id$
*
*/
#include "common/stdafx.h"
#include "agos/agos.h"
#include "agos/intern.h"
namespace AGOS {
int AGOSEngine::canPlace(Item *x, Item *y) {
Item *z = derefItem(x->parent);
SubObject *o = (SubObject *)findChildOfType(y, 2);
int ct;
int cap = 0;
if (o == NULL)
return(0); /* Fits Fine */
xPlace(x,NULL); /* Avoid disturbing figures */
if (o)
cap = sizeContents(y);
xPlace(x, z);
if ((o) && (o->objectFlags & kOFVolume)) {
ct = getOffsetOfChild2Param(o, kOFVoice);
cap = o->objectFlagValue[ct] - cap;
cap -= sizeOfRec(x, 0); /* - size of item going in */
if (cap < 0)
return -1; /* Too big to fit */
}
return 0;
}
void AGOSEngine::xPlace(Item *x, Item *y) {
if (x->parent != 0)
unlinkItem(x);
linkItem(x, y);
}
int AGOSEngine::sizeContents(Item *x) {
return sizeRec(x, 0);
}
int AGOSEngine::sizeRec(Item *x, int d) {
Item *o;
int n = 0;
o = derefItem(x->child);
if (d > 32)
return(0);
while (o) {
n += sizeOfRec(o,d);
o = derefItem(o->child);
}
return n;
}
int AGOSEngine::sizeOfRec(Item *o, int d) {
SubObject *a = (SubObject *)findChildOfType(o, 2);
int ct;
if ((a) && (a->objectFlags & kOFSoft)) {
if (a->objectFlags & kOFSize) {
ct = getOffsetOfChild2Param(a, kOFSize);
return a->objectFlagValue[ct] + sizeRec(o, d + 1);
}
return sizeRec(o, d + 1);
}
if ((a) && (a->objectFlags & kOFSize)) {
ct = getOffsetOfChild2Param(a, kOFSize);
return a->objectFlagValue[ct];
}
return 0;
}
} // End of namespace AGOS
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