6ffc988ae3
The expression module now uses an EXP prefix and it follows a distribution similar to blender. Additionally the hash function in EXP_HashedPtr.h was simplified and the files EXP_C-Api.h &.EXP_C-Api.cpp were deleted because were unused. Reviewers: campbellbarton, moguri, sybren, hg1 Projects: #game_engine Differential Revision: https://developer.blender.org/D1221
160 lines
3.7 KiB
C++
160 lines
3.7 KiB
C++
/*
|
|
* 'Expression Controller enables to calculate an expression that wires inputs to output
|
|
*
|
|
*
|
|
* ***** BEGIN GPL LICENSE BLOCK *****
|
|
*
|
|
* 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.
|
|
*
|
|
* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
|
|
* All rights reserved.
|
|
*
|
|
* The Original Code is: all of this file.
|
|
*
|
|
* Contributor(s): none yet.
|
|
*
|
|
* ***** END GPL LICENSE BLOCK *****
|
|
*/
|
|
|
|
/** \file gameengine/GameLogic/SCA_ExpressionController.cpp
|
|
* \ingroup gamelogic
|
|
*/
|
|
|
|
|
|
#include "SCA_ExpressionController.h"
|
|
#include "SCA_ISensor.h"
|
|
#include "SCA_LogicManager.h"
|
|
#include "EXP_BoolValue.h"
|
|
#include "EXP_InputParser.h"
|
|
#include "MT_Transform.h" // for fuzzyZero
|
|
|
|
#include <stdio.h>
|
|
|
|
|
|
/* ------------------------------------------------------------------------- */
|
|
/* Native functions */
|
|
/* ------------------------------------------------------------------------- */
|
|
|
|
SCA_ExpressionController::SCA_ExpressionController(SCA_IObject* gameobj,
|
|
const STR_String& exprtext)
|
|
:SCA_IController(gameobj),
|
|
m_exprText(exprtext),
|
|
m_exprCache(NULL)
|
|
{
|
|
}
|
|
|
|
|
|
|
|
SCA_ExpressionController::~SCA_ExpressionController()
|
|
{
|
|
if (m_exprCache)
|
|
m_exprCache->Release();
|
|
}
|
|
|
|
|
|
|
|
CValue* SCA_ExpressionController::GetReplica()
|
|
{
|
|
SCA_ExpressionController* replica = new SCA_ExpressionController(*this);
|
|
replica->m_exprText = m_exprText;
|
|
replica->m_exprCache = NULL;
|
|
// this will copy properties and so on...
|
|
replica->ProcessReplica();
|
|
|
|
return replica;
|
|
}
|
|
|
|
|
|
// Forced deletion of precalculated expression to break reference loop
|
|
// Use this function when you know that you won't use the sensor anymore
|
|
void SCA_ExpressionController::Delete()
|
|
{
|
|
if (m_exprCache)
|
|
{
|
|
m_exprCache->Release();
|
|
m_exprCache = NULL;
|
|
}
|
|
Release();
|
|
}
|
|
|
|
|
|
void SCA_ExpressionController::Trigger(SCA_LogicManager* logicmgr)
|
|
{
|
|
|
|
bool expressionresult = false;
|
|
if (!m_exprCache)
|
|
{
|
|
CParser parser;
|
|
parser.SetContext(this->AddRef());
|
|
m_exprCache = parser.ProcessText(m_exprText);
|
|
}
|
|
if (m_exprCache)
|
|
{
|
|
CValue* value = m_exprCache->Calculate();
|
|
if (value)
|
|
{
|
|
if (value->IsError())
|
|
{
|
|
printf("%s\n", value->GetText().ReadPtr());
|
|
} else
|
|
{
|
|
float num = (float)value->GetNumber();
|
|
expressionresult = !MT_fuzzyZero(num);
|
|
}
|
|
value->Release();
|
|
|
|
}
|
|
}
|
|
|
|
for (vector<SCA_IActuator*>::const_iterator i=m_linkedactuators.begin();
|
|
!(i==m_linkedactuators.end());i++)
|
|
{
|
|
SCA_IActuator* actua = *i;
|
|
logicmgr->AddActiveActuator(actua,expressionresult);
|
|
}
|
|
}
|
|
|
|
|
|
|
|
CValue* SCA_ExpressionController::FindIdentifier(const STR_String& identifiername)
|
|
{
|
|
|
|
CValue* identifierval = NULL;
|
|
|
|
for (vector<SCA_ISensor*>::const_iterator is=m_linkedsensors.begin();
|
|
!(is==m_linkedsensors.end());is++)
|
|
{
|
|
SCA_ISensor* sensor = *is;
|
|
if (sensor->GetName() == identifiername)
|
|
{
|
|
identifierval = new CBoolValue(sensor->GetState());
|
|
//identifierval = sensor->AddRef();
|
|
break;
|
|
}
|
|
|
|
//if (!sensor->IsPositiveTrigger())
|
|
//{
|
|
// sensorresult = false;
|
|
// break;
|
|
//}
|
|
}
|
|
|
|
if (identifierval)
|
|
return identifierval;
|
|
|
|
return GetParent()->FindIdentifier(identifiername);
|
|
|
|
}
|