bool SCA_PropertyActuator::Update()
{
bool result = false;
bool bNegativeEvent = IsNegativeEvent();
RemoveAllEvents();
if (bNegativeEvent)
return false; // do nothing on negative events
CValue* propowner = GetParent();
CParser parser;
parser.SetContext( propowner->AddRef());
CExpression* userexpr= NULL;
if (m_type==KX_ACT_PROP_TOGGLE)
{
/* dont use */
CValue* newval;
CValue* oldprop = propowner->GetProperty(m_propname);
if (oldprop)
{
newval = new CBoolValue((oldprop->GetNumber()==0.0) ? true:false);
oldprop->SetValue(newval);
} else
{ /* as not been assigned, evaluate as false, so assign true */
newval = new CBoolValue(true);
propowner->SetProperty(m_propname,newval);
}
newval->Release();
}
else if ((userexpr = parser.ProcessText(m_exprtxt))) {
switch (m_type)
{
case KX_ACT_PROP_ASSIGN:
{
CValue* newval = userexpr->Calculate();
CValue* oldprop = propowner->GetProperty(m_propname);
if (oldprop)
{
oldprop->SetValue(newval);
} else
{
propowner->SetProperty(m_propname,newval);
}
newval->Release();
break;
}
case KX_ACT_PROP_ADD:
{
CValue* oldprop = propowner->GetProperty(m_propname);
if (oldprop)
{
// int waarde = (int)oldprop->GetNumber(); /*unused*/
CExpression* expr = new COperator2Expr(VALUE_ADD_OPERATOR,new CConstExpr(oldprop->AddRef()),
userexpr->AddRef());
CValue* newprop = expr->Calculate();
oldprop->SetValue(newprop);
newprop->Release();
expr->Release();
}
break;
}
case KX_ACT_PROP_COPY:
{
if (m_sourceObj)
{
CValue* copyprop = m_sourceObj->GetProperty(m_exprtxt);
if (copyprop)
{
CValue *val = copyprop->GetReplica();
GetParent()->SetProperty(
m_propname,
val);
val->Release();
}
}
break;
}
/* case KX_ACT_PROP_TOGGLE: */ /* accounted for above, no need for userexpr */
default:
{
}
}
userexpr->Release();
}
return result;
}
