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/* Copyright (C) 1994-2004 Revolution Software Ltd
*
* 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 "common/stdafx.h"
#include "sword2/sword2.h"
#include "sword2/defs.h"
#include "sword2/interpreter.h"
#include "sword2/logic.h"
namespace Sword2 {
int32 Logic::fnSendSync(int32 *params) {
// params: 0 sync's recipient
// 1 sync value
for (int i = 0; i < MAX_syncs; i++) {
if (_syncList[i].id == 0) {
debug(5, "%d sends sync %d to %d", _scriptVars[ID], params[1], params[0]);
_syncList[i].id = params[0];
_syncList[i].sync = params[1];
return IR_CONT;
}
}
// The original code didn't even check for this condition, so maybe
// it should be a fatal error?
warning("No free sync slot");
return IR_CONT;
}
/**
* Clear any syncs registered for this id. Call this just after the id has been
* processed. Theoretically there could be more than one sync waiting for us,
* so clear the lot.
*/
void Logic::clearSyncs(uint32 id) {
for (int i = 0; i < MAX_syncs; i++) {
if (_syncList[i].id == id) {
debug(5, "removing sync %d for %d", i, id);
_syncList[i].id = 0;
}
}
}
/**
* Check for a sync waiting for this character. Called from fnAnim() to see if
* animation is to be finished. Returns an index into _syncList[], or -1.
*/
int Logic::getSync(void) {
for (int i = 0; i < MAX_syncs; i++) {
if (_syncList[i].id == _scriptVars[ID])
return i;
}
return -1;
}
/**
* Like getSync(), but called from scripts. Sets the RESULT variable to
* the sync value, or 0 if none is found.
*/
int32 Logic::fnGetSync(int32 *params) {
// params: none
int slot = getSync();
_scriptVars[RESULT] = (slot != -1) ? _syncList[slot].sync : 0;
return IR_CONT;
}
/**
* Wait for sync to happen. Sets the RESULT variable to the sync value, once
* it has been found.
*/
int32 Logic::fnWaitSync(int32 *params) {
// params: none
debug(6, "fnWaitSync: %d waits", _scriptVars[ID]);
int slot = getSync();
if (slot == -1)
return IR_REPEAT;
debug(5, "fnWaitSync: %d got sync %d", _scriptVars[ID], _syncList[slot].sync);
_scriptVars[RESULT] = _syncList[slot].sync;
return IR_CONT;
}
} // End of namespace Sword2
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