warzone2100/lib/script/eventsave.cpp

365 lines
9.8 KiB
C++

/*
This file is part of Warzone 2100.
Copyright (C) 1999-2004 Eidos Interactive
Copyright (C) 2005-2011 Warzone 2100 Project
Warzone 2100 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.
Warzone 2100 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 Warzone 2100; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
/*
* EvntSave.c
*
* Save the state of the event system.
*
*/
#include "lib/framework/frame.h"
#include "lib/framework/wzconfig.h"
#include <string.h>
#include "lib/framework/frameresource.h"
#include "lib/framework/endian_hack.h"
#include "lib/framework/string_ext.h"
#include "script.h"
#include "eventsave.h"
// save the context information for the script system
static bool eventSaveContext(WzConfig &ini)
{
int numVars, numContext = 0;
UDWORD hashedName;
// go through the context list
for (SCRIPT_CONTEXT *psCCont = psContList; psCCont != NULL; psCCont = psCCont->psNext)
{
// save the context info
if (!resGetHashfromData("SCRIPT", psCCont->psCode, &hashedName))
{
debug(LOG_FATAL, "Could not find script resource id");
return false;
}
numVars = psCCont->psCode->numGlobals + psCCont->psCode->arraySize;
ini.beginGroup("context_" + QString::number(numContext));
ini.setValue("context", hashedName);
ini.setValue("numVars", numVars);
ini.setValue("release", psCCont->release);
ini.beginGroup("var");
// save the context variables
int countVar = 0;
for (VAL_CHUNK *psCVals = psCCont->psGlobals; psCVals != NULL; psCVals = psCVals->psNext)
{
for (int i = 0; i < CONTEXT_VALS; i++)
{
INTERP_VAL *psVal = psCVals->asVals + i;
ASSERT(psVal->type < SWORD_MAX, "Variable type number %d too big", (int)psVal->type);
ini.beginGroup(QString::number(countVar));
ini.setValue("type", QVariant(psVal->type));
ini.setValue("typename", QString(scriptTypeToString(psVal->type))); // for debugging
// store the variable value
if (psVal->type == VAL_STRING)
{
ini.setValue("data", QString(psVal->v.sval));
}
else if (psVal->type == VAL_BOOL)
{
ini.setValue("data", QVariant((bool)psVal->v.bval));
}
else if (psVal->type == VAL_FLOAT)
{
ini.setValue("data", QVariant((float)psVal->v.fval));
}
else if (psVal->type == VAL_OBJ_GETSET || psVal->type == VAL_FUNC_EXTERN)
{
ini.setValue("data", QString("n/a"));
}
else if (psVal->type < VAL_USERTYPESTART)
{
ini.setValue("data", QVariant(psVal->v.ival));
}
else
{
// user defined type
SCR_VAL_SAVE saveFunc = asScrTypeTab[psVal->type - VAL_USERTYPESTART].saveFunc;
ASSERT(saveFunc != NULL, "No save function for type %d", psVal->type);
if (!saveFunc(psVal, ini))
{
debug(LOG_FATAL, "Could not get user defined variable value");
return false;
}
}
numVars -=1;
countVar++;
ini.endGroup();
if (numVars <= 0)
{
// done all the variables
ASSERT(psCVals->psNext == NULL, "Number of context variables does not match the script code");
break;
}
}
}
ASSERT(numVars == 0, "Number of context variables does not match the script code (%d)", numVars);
ini.endGroup();
ini.endGroup();
numContext++;
}
// actually store how many contexts have been saved
ini.setValue("general/contexts", QVariant(numContext));
return true;
}
// load the context information for the script system
static bool eventLoadContext(WzConfig &ini)
{
SDWORD numVars, numContext;
SCRIPT_CONTEXT *psCCont;
SCR_VAL_LOAD loadFunc;
UDWORD hashedName;
SCRIPT_CODE *psCode;
CONTEXT_RELEASE release;
INTERP_VAL *psVal, data;
// get the number of contexts in the save file
numContext = ini.value("general/contexts", 0).toInt();
if (numContext == 0)
{
debug(LOG_FATAL, "No script contexts found -- failed to load script data");
return false;
}
// go through the contexts
for (int context = 0; context < numContext; context++)
{
ini.beginGroup("context_" + QString::number(context));
hashedName = ini.value("context").toUInt();
numVars = ini.value("numVars").toInt();
release = (CONTEXT_RELEASE)ini.value("release").toInt();
psCode = (SCRIPT_CODE*)resGetDataFromHash("SCRIPT", hashedName);
// create the context
if (!eventNewContext(psCode, release, &psCCont))
{
debug(LOG_FATAL, "Failed to create new context");
return false;
}
if (numVars != psCode->numGlobals + psCode->arraySize)
{
ASSERT(false, "Context %d of %d: Number of context variables (%d) does not match the script code (%d)",
context, numContext, numVars, psCode->numGlobals + psCode->arraySize);
return false;
}
// bit of a hack this - note the id of the context to link it to the triggers
psContList->id = context;
ini.beginGroup("var");
// set the context variables
for (int i = 0; i < numVars; i++)
{
ini.beginGroup(QString::number(i));
// get the variable type
INTERP_TYPE type = (INTERP_TYPE)ini.value("type").toInt();
// get the variable value
if (type < VAL_USERTYPESTART)
{
data.type = type;
switch (type)
{
case VAL_BOOL:
data.v.bval = ini.value("data").toBool();
break;
case VAL_FLOAT:
data.v.fval = ini.value("data").toFloat();
break;
case VAL_INT:
case VAL_TRIGGER:
case VAL_EVENT:
case VAL_VOID:
case VAL_OPCODE:
case VAL_PKOPCODE:
data.v.ival = ini.value("data").toInt();
break;
case VAL_STRING:
data.v.sval = (char*)malloc(MAXSTRLEN);
strcpy(data.v.sval, ini.value("var/" + QString::number(i) + "/data").toString().toAscii().constData());
break;
case VAL_OBJ_GETSET:
case VAL_FUNC_EXTERN:
// do nothing
break;
default:
ASSERT(false, "Invalid internal type");
}
// set the value in the context
if (!eventSetContextVar(psCCont, i, &data))
{
debug(LOG_FATAL, "Could not set variable value");
return false;
}
}
else
{
// user defined type
loadFunc = asScrTypeTab[type - VAL_USERTYPESTART].loadFunc;
ASSERT(loadFunc, "No load function for type %d", type);
// get the value pointer so that the loadFunc can write directly
// into the variables data space.
if (!eventGetContextVal(psCCont, i, &psVal))
{
debug(LOG_FATAL, "Could not find variable %d in context %d", i, context);
return false;
}
if (!loadFunc(psVal, ini))
{
debug(LOG_FATAL, "Could not get variable value context %d, variable %d", context, i);
return false;
}
}
ini.endGroup();
}
ini.endGroup();
ini.endGroup();
}
return true;
}
// return the index of a context
static bool eventGetContextIndex(SCRIPT_CONTEXT *psContext, SDWORD *pIndex)
{
int index = 0;
for (SCRIPT_CONTEXT *psCurr = psContList; psCurr!= NULL; psCurr = psCurr->psNext)
{
if (psCurr == psContext)
{
*pIndex = index;
return true;
}
index += 1;
}
return false;
}
// find a context from it's id number
static bool eventFindContext(SDWORD id, SCRIPT_CONTEXT **ppsContext)
{
for (SCRIPT_CONTEXT *psCurr = psContList; psCurr!= NULL; psCurr=psCurr->psNext)
{
if (psCurr->id == id)
{
*ppsContext = psCurr;
return true;
}
}
return false;
}
// save a list of triggers
static bool eventSaveTriggerList(ACTIVE_TRIGGER *psList, QString tname, WzConfig &ini)
{
int numTriggers = 0, context = 0;
for (ACTIVE_TRIGGER *psCurr = psList; psCurr != NULL; psCurr = psCurr->psNext)
{
if (!eventGetContextIndex(psCurr->psContext, &context))
{
debug(LOG_FATAL, "Could not find context");
return false;
}
ini.beginGroup(tname + "_" + QString::number(numTriggers));
ini.setValue("time", QVariant(psCurr->testTime));
ini.setValue("context", QVariant(context));
ini.setValue("type", QVariant(psCurr->type));
ini.setValue("trigger", QVariant(psCurr->trigger));
ini.setValue("event", QVariant(psCurr->event));
ini.setValue("offset", QVariant(psCurr->offset));
ini.endGroup();
numTriggers++;
}
ini.setValue("general/num" + tname, QVariant(numTriggers));
return true;
}
// load a list of triggers
static bool eventLoadTriggerList(WzConfig &ini, QString tname)
{
UDWORD event, offset, time;
int numTriggers, context, type, trigger;
SCRIPT_CONTEXT *psContext;
numTriggers = ini.value("general/num" + tname).toInt();
for (int i = 0; i < numTriggers; i++)
{
ini.beginGroup(tname + "_" + QString::number(i));
time = ini.value("time").toInt();
context = ini.value("context").toInt();
if (!eventFindContext(context, &psContext))
{
debug(LOG_FATAL, "could not find context");
return false;
}
type = ini.value("type").toInt();
trigger = ini.value("trigger").toInt();
event = ini.value("event").toInt();
offset = ini.value("offset").toInt();
if (!eventLoadTrigger(time, psContext, type, trigger, event, offset))
{
debug(LOG_FATAL, "Failed to create trigger");
return false;
}
ini.endGroup();
}
return true;
}
// Save the state of the event system
bool eventSaveState(const char *pFilename)
{
WzConfig ini(pFilename);
if (!eventSaveContext(ini) || !eventSaveTriggerList(psTrigList, "trig", ini) || !eventSaveTriggerList(psCallbackList, "callback", ini))
{
return false;
}
return true;
}
// Load the state of the event system
bool eventLoadState(const char *pFilename)
{
WzConfig ini(pFilename);
// load the event contexts
if (!eventLoadContext(ini) || !eventLoadTriggerList(ini, "trig") || !eventLoadTriggerList(ini, "callback"))
{
return false;
}
return true;
}