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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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.
*
*/
#ifndef GLK_ALAN2_UTIL
#define GLK_ALAN2_UTIL
#include "glk/alan2/acode.h"
#include "glk/alan2/alan2.h"
#include "glk/alan2/types.h"
namespace Glk {
namespace Alan2 {
// TODO: Move these
extern LitElem *litValues;
extern uint32 litCount; // for LITMAX - defined in parse.cpp
extern ActElem *acts; // Actor table pointer
extern ObjElem *objs; // Object table pointer
// Type checks
inline bool isObj(Aword x) {
return x >= OBJMIN && x <= OBJMAX;
}
inline bool isAct(Aword x) {
return x >= ACTMIN && x <= ACTMAX;
}
inline bool isCnt(Aword x) {
return (x >= CNTMIN && x <= CNTMAX) ||
(isObj(x) && objs[x - OBJMIN].cont != 0) ||
(isAct(x) && acts[x - ACTMIN].cont != 0);
}
inline bool isLoc(Aword x) {
return x >= LOCMIN && x <= LOCMAX;
}
inline bool isNum(Aword x) {
return x >= LITMIN && x <= LITMAX && litValues[x - LITMIN].type == TYPNUM;
}
inline bool isStr(Aword x) {
return x >= LITMIN && x <= LITMAX && litValues[x - LITMIN].type == TYPSTR;
}
inline bool isLit(Aword x) {
return x >= LITMIN && x <= LITMAX;
}
inline bool endOfTable(LimElem *addr) {
Aword *x = (Aword *)addr;
return *x == EOF;
}
inline bool endOfTable(ScrElem *addr) {
Aword *x = (Aword *)addr;
return *x == EOF;
}
inline bool endOfTable(ExtElem *addr) {
Aword *x = (Aword *)addr;
return *x == EOF;
}
} // End of namespace Alan2
} // End of namespace Glk
#endif
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