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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.
*
* $URL$
* $Id$
*
*/
/*
* This code is based on original Hugo Trilogy source code
*
* Copyright (c) 1989-1995 David P. Gray
*
*/
// This module contains all the scheduling and timing stuff
#include "common/system.h"
#include "hugo/game.h"
#include "hugo/hugo.h"
#include "hugo/schedule.h"
#include "hugo/file.h"
#include "hugo/display.h"
#include "hugo/util.h"
namespace Hugo {
Scheduler_v1d::Scheduler_v1d(HugoEngine *vm) : Scheduler(vm) {
}
Scheduler_v1d::~Scheduler_v1d() {
}
const char *Scheduler_v1d::getCypher() {
return "Copyright (c) 1990, Gray Design Associates";
}
uint32 Scheduler_v1d::getTicks() {
return getDosTicks(false);
}
/**
* Delete an event structure (i.e. return it to the free list)
* Note that event is assumed at head of queue (i.e. earliest). To delete
* an event from the middle of the queue, merely overwrite its action type
* to be ANULL
*/
void Scheduler_v1d::delQueue(event_t *curEvent) {
debugC(4, kDebugSchedule, "delQueue()");
if (curEvent == _headEvent) // If p was the head ptr
_headEvent = curEvent->nextEvent; // then make new head_p
if (_headEvent)
_headEvent->prevEvent = 0; // Mark end of list
else
_tailEvent = 0; // Empty queue
curEvent->nextEvent = _freeEvent; // Return p to free list
if (_freeEvent) // Special case, if free list was empty
_freeEvent->prevEvent = curEvent;
_freeEvent = curEvent;
}
/**
* This is the scheduler which runs every tick. It examines the event queue
* for any events whose time has come. It dequeues these events and performs
* the action associated with the event, returning it to the free queue
*/
void Scheduler_v1d::runScheduler() {
debugC(6, kDebugSchedule, "runScheduler");
uint32 ticker = getTicks(); // The time now, in ticks
event_t *curEvent = _headEvent; // The earliest event
while (curEvent && (curEvent->time <= ticker)) // While mature events found
curEvent = doAction(curEvent); // Perform the action (returns next_p)
}
void Scheduler_v1d::delEventType(action_t actTypeDel) {
// Note: actions are not deleted here, simply turned into NOPs!
event_t *wrkEvent = _headEvent; // The earliest event
while (wrkEvent) { // While events found in list
if (wrkEvent->action->a20.actType == actTypeDel)
wrkEvent->action->a20.actType = ANULL;
wrkEvent = wrkEvent->nextEvent;
}
}
void Scheduler_v1d::promptAction(act *action) {
Utils::Box(BOX_PROMPT, "%s", _vm->_file->fetchString(action->a3.promptIndex));
char response[256];
strcpy(response, _vm->_file->fetchString(action->a3.responsePtr[0]));
if (action->a3.encodedFl) {
warning("Encrypted flag set");
decodeString(response);
}
warning("STUB: doAction(act3), expecting answer %s", response);
// TODO: The answer of the player is not handled currently! Once it'll be read in the messageBox, uncomment this block
#if 0
if (strstr (response, action->a3.response))
insertActionList(action->a3.actPassIndex);
else
insertActionList(action->a3.actFailIndex);
#endif
// HACK: As the answer is not read, currently it's always considered correct
insertActionList(action->a3.actPassIndex);
}
} // End of namespace Hugo
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