127 lines
2.3 KiB
C++
127 lines
2.3 KiB
C++
/** \file gameengine/Expressions/EmptyValue.cpp
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* \ingroup expressions
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*/
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// EmptyValue.cpp: implementation of the CEmptyValue class.
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/*
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* Copyright (c) 1996-2000 Erwin Coumans <coockie@acm.org>
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*
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* Permission to use, copy, modify, distribute and sell this software
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* and its documentation for any purpose is hereby granted without fee,
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* provided that the above copyright notice appear in all copies and
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* that both that copyright notice and this permission notice appear
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* in supporting documentation. Erwin Coumans makes no
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* representations about the suitability of this software for any
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* purpose. It is provided "as is" without express or implied warranty.
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*
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*/
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#include "EmptyValue.h"
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#include "IntValue.h"
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#include "FloatValue.h"
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#include "StringValue.h"
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#include "ErrorValue.h"
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#include "ListValue.h"
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#include "VoidValue.h"
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//////////////////////////////////////////////////////////////////////
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// Construction/Destruction
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//////////////////////////////////////////////////////////////////////
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CEmptyValue::CEmptyValue()
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/*
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pre:
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effect: constructs a new CEmptyValue
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*/
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{
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SetModified(false);
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}
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CEmptyValue::~CEmptyValue()
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/*
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pre:
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effect: deletes the object
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*/
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{
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}
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CValue * CEmptyValue::Calc(VALUE_OPERATOR op, CValue * val)
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/*
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pre:
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ret: a new object containing the result of applying operator op to this
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object and val
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*/
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{
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return val->CalcFinal(VALUE_EMPTY_TYPE, op, this);
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}
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CValue * CEmptyValue::CalcFinal(VALUE_DATA_TYPE dtype, VALUE_OPERATOR op, CValue * val)
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/*
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pre: the type of val is dtype
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ret: a new object containing the result of applying operator op to val and
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this object
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*/
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{
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return val->AddRef();
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}
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double CEmptyValue::GetNumber()
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{
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return 0;
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}
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CListValue* CEmptyValue::GetPolySoup()
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{
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CListValue* soup = new CListValue();
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//don't add any poly, while it's an empty value
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return soup;
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}
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bool CEmptyValue::IsInside(CValue* testpoint,bool bBorderInclude)
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{
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// empty space is solid, so always inside
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return true;
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}
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double* CEmptyValue::GetVector3(bool bGetTransformedVec)
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{
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assertd(false); // don't get vector from me
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return ZeroVector();
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}
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static STR_String emptyString = STR_String("");
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const STR_String & CEmptyValue::GetText()
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{
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return emptyString;
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}
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CValue* CEmptyValue::GetReplica()
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{
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CEmptyValue* replica = new CEmptyValue(*this);
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replica->ProcessReplica();
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return replica;
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}
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