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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.
*
*/
#include "glk/alan3/act.h"
#include "glk/alan3/alt_info.h"
#include "glk/alan3/exe.h"
#include "glk/alan3/lists.h"
#include "glk/alan3/msg.h"
#include "glk/alan3/output.h"
#include "glk/alan3/syserr.h"
namespace Glk {
namespace Alan3 {
/*----------------------------------------------------------------------*/
static void executeCommand(int verb, Parameter parameters[]) {
static AltInfo *altInfos = NULL; /* Need to survive lots of different exits...*/
int altIndex;
/* Did we leave anything behind last time... */
if (altInfos != NULL)
free(altInfos);
altInfos = findAllAlternatives(verb, parameters);
if (anyCheckFailed(altInfos, EXECUTE_CHECK_BODY_ON_FAIL))
return;
/* Check for anything to execute... */
if (!anythingToExecute(altInfos))
error(M_CANT0);
/* Now perform actions! First try any BEFORE or ONLY from inside out */
for (altIndex = lastAltInfoIndex(altInfos); altIndex >= 0; altIndex--) {
if (altInfos[altIndex].alt != 0) // TODO Can this ever be NULL? Why?
if (altInfos[altIndex].alt->qual == (Aword)Q_BEFORE
|| altInfos[altIndex].alt->qual == (Aword)Q_ONLY) {
if (!executedOk(&altInfos[altIndex]))
abortPlayerCommand();
if (altInfos[altIndex].alt->qual == (Aword)Q_ONLY)
return;
}
}
/* Then execute any not declared as AFTER, i.e. the default */
for (altIndex = 0; !altInfos[altIndex].end; altIndex++) {
if (altInfos[altIndex].alt != 0)
if (altInfos[altIndex].alt->qual != (Aword)Q_AFTER)
if (!executedOk(&altInfos[altIndex]))
abortPlayerCommand();
}
/* Finally, the ones declared as AFTER */
for (altIndex = lastAltInfoIndex(altInfos); altIndex >= 0; altIndex--) {
if (altInfos[altIndex].alt != 0)
if (!executedOk(&altInfos[altIndex]))
abortPlayerCommand();
}
}
/*======================================================================
action()
Execute the command. Handles acting on multiple items
such as ALL, THEM or lists of objects.
*/
void action(int verb, Parameter parameters[], Parameter multipleMatches[]) {
int multiplePosition;
#ifdef TODO
char marker[10];
#endif
multiplePosition = findMultiplePosition(parameters);
if (multiplePosition != -1) {
#ifdef TODO
jmp_buf savedReturnLabel;
memcpy(savedReturnLabel, returnLabel, sizeof(returnLabel));
sprintf(marker, "($%d)", multiplePosition + 1); /* Prepare a printout with $1/2/3 */
for (int i = 0; !isEndOfArray(&multipleMatches[i]); i++) {
copyParameter(¶meters[multiplePosition], &multipleMatches[i]);
setGlobalParameters(parameters); /* Need to do this here since the marker use them */
output(marker);
// TODO: if execution for one parameter aborts we should return here, not to top level
if (setjmp(returnLabel) == NO_JUMP_RETURN)
executeCommand(verb, parameters);
if (multipleMatches[i + 1].instance != EOD)
para();
}
memcpy(returnLabel, savedReturnLabel, sizeof(returnLabel));
parameters[multiplePosition].instance = 0;
#else
syserr("TODO: action");
#endif
} else {
setGlobalParameters(parameters);
executeCommand(verb, parameters);
}
}
} // End of namespace Alan3
} // End of namespace Glk
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