forked from bartvdbraak/blender
390 lines
9.1 KiB
C++
390 lines
9.1 KiB
C++
/*
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* Property sensor
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*
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*
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* ***** BEGIN GPL LICENSE BLOCK *****
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
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* All rights reserved.
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*
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* The Original Code is: all of this file.
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*
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* Contributor(s): none yet.
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*
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* ***** END GPL LICENSE BLOCK *****
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*/
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/** \file gameengine/GameLogic/SCA_PropertySensor.cpp
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* \ingroup gamelogic
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*/
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#include <stddef.h>
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#include <iostream>
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#include "SCA_PropertySensor.h"
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#include "Operator2Expr.h"
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#include "ConstExpr.h"
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#include "InputParser.h"
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#include "StringValue.h"
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#include "SCA_EventManager.h"
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#include "SCA_LogicManager.h"
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#include "BoolValue.h"
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#include "FloatValue.h"
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#include <stdio.h>
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SCA_PropertySensor::SCA_PropertySensor(SCA_EventManager* eventmgr,
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SCA_IObject* gameobj,
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const STR_String& propname,
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const STR_String& propval,
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const STR_String& propmaxval,
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KX_PROPSENSOR_TYPE checktype)
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: SCA_ISensor(gameobj,eventmgr),
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m_checktype(checktype),
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m_checkpropval(propval),
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m_checkpropmaxval(propmaxval),
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m_checkpropname(propname),
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m_range_expr(NULL)
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{
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//CParser pars;
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//pars.SetContext(this->AddRef());
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//CValue* resultval = m_rightexpr->Calculate();
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CValue* orgprop = GetParent()->FindIdentifier(m_checkpropname);
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if (!orgprop->IsError())
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{
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m_previoustext = orgprop->GetText();
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}
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orgprop->Release();
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if (m_checktype==KX_PROPSENSOR_INTERVAL)
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{
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PrecalculateRangeExpression();
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}
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Init();
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}
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void SCA_PropertySensor::Init()
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{
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m_recentresult = false;
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m_lastresult = m_invert?true:false;
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m_reset = true;
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}
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void SCA_PropertySensor::PrecalculateRangeExpression()
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{
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CParser pars;
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//The context is needed to retrieve the property at runtime but it creates
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//loop of references
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pars.SetContext(this->AddRef());
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STR_String checkstr = "(" + m_checkpropval + " <= "
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+ m_checkpropname + ") && ( "
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+ m_checkpropname + " <= "
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+ m_checkpropmaxval + ")";
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m_range_expr = pars.ProcessText(checkstr);
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}
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// Forced deletion of precalculated range expression to break reference loop
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// Use this function when you know that you won't use the sensor anymore
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void SCA_PropertySensor::Delete()
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{
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if (m_range_expr)
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{
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m_range_expr->Release();
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m_range_expr = NULL;
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}
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Release();
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}
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CValue* SCA_PropertySensor::GetReplica()
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{
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SCA_PropertySensor* replica = new SCA_PropertySensor(*this);
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// m_range_expr must be recalculated on replica!
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replica->ProcessReplica();
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replica->Init();
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replica->m_range_expr = NULL;
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if (replica->m_checktype==KX_PROPSENSOR_INTERVAL)
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{
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replica->PrecalculateRangeExpression();
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}
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return replica;
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}
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bool SCA_PropertySensor::IsPositiveTrigger()
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{
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bool result = m_recentresult;//CheckPropertyCondition();
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if (m_invert)
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result = !result;
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return result;
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}
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SCA_PropertySensor::~SCA_PropertySensor()
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{
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//if (m_rightexpr)
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// m_rightexpr->Release();
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if (m_range_expr)
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{
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m_range_expr->Release();
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m_range_expr=NULL;
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}
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}
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bool SCA_PropertySensor::Evaluate()
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{
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bool result = CheckPropertyCondition();
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bool reset = m_reset && m_level;
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m_reset = false;
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if (m_lastresult!=result)
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{
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m_lastresult = result;
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return true;
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}
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return (reset) ? true : false;
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}
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bool SCA_PropertySensor::CheckPropertyCondition()
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{
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m_recentresult=false;
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bool result=false;
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bool reverse = false;
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switch (m_checktype)
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{
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case KX_PROPSENSOR_NOTEQUAL:
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reverse = true;
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case KX_PROPSENSOR_EQUAL:
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{
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CValue* orgprop = GetParent()->FindIdentifier(m_checkpropname);
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if (!orgprop->IsError())
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{
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const STR_String& testprop = orgprop->GetText();
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// Force strings to upper case, to avoid confusion in
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// bool tests. It's stupid the prop's identity is lost
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// on the way here...
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if ((&testprop == &CBoolValue::sTrueString) || (&testprop == &CBoolValue::sFalseString)) {
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m_checkpropval.Upper();
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}
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result = (testprop == m_checkpropval);
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/* Patch: floating point values cant use strings usefully since you can have "0.0" == "0.0000"
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* this could be made into a generic Value class function for comparing values with a string.
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*/
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if (result==false && dynamic_cast<CFloatValue *>(orgprop) != NULL) {
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float f;
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if (EOF == sscanf(m_checkpropval.ReadPtr(), "%f", &f))
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{
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//error
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}
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else {
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result = (f == ((CFloatValue *)orgprop)->GetFloat());
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}
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}
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/* end patch */
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}
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orgprop->Release();
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if (reverse)
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result = !result;
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break;
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}
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case KX_PROPSENSOR_EXPRESSION:
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{
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/*
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if (m_rightexpr)
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{
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CValue* resultval = m_rightexpr->Calculate();
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if (resultval->IsError())
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{
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int i=0;
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STR_String errortest = resultval->GetText();
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printf(errortest);
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} else
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{
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result = resultval->GetNumber() != 0;
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}
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}
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*/
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break;
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}
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case KX_PROPSENSOR_INTERVAL:
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{
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//CValue* orgprop = GetParent()->FindIdentifier(m_checkpropname);
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//if (orgprop)
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//{
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if (m_range_expr)
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{
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CValue* vallie = m_range_expr->Calculate();
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if (vallie)
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{
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const STR_String& errtext = vallie->GetText();
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if (&errtext == &CBoolValue::sTrueString)
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{
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result = true;
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} else
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{
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if (vallie->IsError())
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{
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//printf (errtext.ReadPtr());
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}
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}
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vallie->Release();
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}
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}
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//}
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//cout << " \nSens:Prop:interval!"; /* need implementation here!!! */
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break;
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}
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case KX_PROPSENSOR_CHANGED:
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{
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CValue* orgprop = GetParent()->FindIdentifier(m_checkpropname);
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if (!orgprop->IsError())
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{
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if (m_previoustext != orgprop->GetText())
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{
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m_previoustext = orgprop->GetText();
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result = true;
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}
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}
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orgprop->Release();
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//cout << " \nSens:Prop:changed!"; /* need implementation here!!! */
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break;
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}
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default:
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; /* error */
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}
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//the concept of Edge and Level triggering has unwanted effect for KX_PROPSENSOR_CHANGED
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//see Game Engine bugtracker [ #3809 ]
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if (m_checktype != KX_PROPSENSOR_CHANGED)
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{
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m_recentresult=result;
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} else
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{
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m_recentresult=result;//true;
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}
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return result;
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}
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CValue* SCA_PropertySensor::FindIdentifier(const STR_String& identifiername)
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{
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return GetParent()->FindIdentifier(identifiername);
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}
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#ifdef WITH_PYTHON
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/* ------------------------------------------------------------------------- */
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/* Python functions */
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/* ------------------------------------------------------------------------- */
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int SCA_PropertySensor::validValueForProperty(void *self, const PyAttributeDef*)
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{
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/* If someone actually do type checking please make sure the 'max' and 'min'
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are checked as well (currently they are calling the PrecalculateRangeExpression
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function directly */
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/* There is no type checking at this moment, unfortunately... */
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return 0;
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}
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int SCA_PropertySensor::validValueForIntervalProperty(void *self, const PyAttributeDef*)
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{
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SCA_PropertySensor* sensor = reinterpret_cast<SCA_PropertySensor*>(self);
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if (sensor->m_checktype==KX_PROPSENSOR_INTERVAL)
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{
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sensor->PrecalculateRangeExpression();
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}
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return 0;
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}
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int SCA_PropertySensor::modeChange(void *self, const PyAttributeDef* attrdef)
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{
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SCA_PropertySensor* sensor = reinterpret_cast<SCA_PropertySensor*>(self);
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if (sensor->m_checktype==KX_PROPSENSOR_INTERVAL)
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{
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sensor->PrecalculateRangeExpression();
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}
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return 0;
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}
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/* Integration hooks ------------------------------------------------------- */
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PyTypeObject SCA_PropertySensor::Type = {
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PyVarObject_HEAD_INIT(NULL, 0)
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"SCA_PropertySensor",
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sizeof(PyObjectPlus_Proxy),
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0,
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py_base_dealloc,
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0,
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0,
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0,
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0,
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py_base_repr,
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0,0,0,0,0,0,0,0,0,
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Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,
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0,0,0,0,0,0,0,
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Methods,
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0,
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0,
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&SCA_ISensor::Type,
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0,0,0,0,0,0,
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py_base_new
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};
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PyMethodDef SCA_PropertySensor::Methods[] = {
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{NULL,NULL} //Sentinel
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};
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PyAttributeDef SCA_PropertySensor::Attributes[] = {
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KX_PYATTRIBUTE_INT_RW_CHECK("mode",KX_PROPSENSOR_NODEF,KX_PROPSENSOR_MAX-1,false,SCA_PropertySensor,m_checktype,modeChange),
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KX_PYATTRIBUTE_STRING_RW_CHECK("propName",0,MAX_PROP_NAME,false,SCA_PropertySensor,m_checkpropname,CheckProperty),
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KX_PYATTRIBUTE_STRING_RW_CHECK("value",0,100,false,SCA_PropertySensor,m_checkpropval,validValueForProperty),
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KX_PYATTRIBUTE_STRING_RW_CHECK("min",0,100,false,SCA_PropertySensor,m_checkpropval,validValueForIntervalProperty),
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KX_PYATTRIBUTE_STRING_RW_CHECK("max",0,100,false,SCA_PropertySensor,m_checkpropmaxval,validValueForIntervalProperty),
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{ NULL } //Sentinel
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};
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#endif // WITH_PYTHON
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/* eof */
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