blender/source/gameengine/Expressions/intern/IfExpr.cpp
Jorge Bernal 6ffc988ae3 BGE Clean-up: New EXP prefix for the BGE Expression module
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
2015-07-12 16:58:12 +02:00

145 lines
2.6 KiB
C++

/** \file gameengine/Expressions/IfExpr.cpp
* \ingroup expressions
*/
// IfExpr.cpp: implementation of the CIfExpr class.
/*
* Copyright (c) 1996-2000 Erwin Coumans <coockie@acm.org>
*
* Permission to use, copy, modify, distribute and sell this software
* and its documentation for any purpose is hereby granted without fee,
* provided that the above copyright notice appear in all copies and
* that both that copyright notice and this permission notice appear
* in supporting documentation. Erwin Coumans makes no
* representations about the suitability of this software for any
* purpose. It is provided "as is" without express or implied warranty.
*
*/
#include "EXP_IfExpr.h"
#include "EXP_EmptyValue.h"
#include "EXP_ErrorValue.h"
#include "EXP_BoolValue.h"
//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////
CIfExpr::CIfExpr()
{
}
/*
* pre:
* effect: constructs an CifExpr-object corresponding to IF(guard, e1, e2)
*/
CIfExpr::CIfExpr(CExpression *guard, CExpression *e1, CExpression *e2)
{
m_guard = guard;
m_e1 = e1;
m_e2 = e2;
}
/*
* pre:
* effect: dereferences the object
*/
CIfExpr::~CIfExpr()
{
if (m_guard)
m_guard->Release();
if (m_e1)
m_e1->Release();
if (m_e2)
m_e2->Release();
}
/**
* pre:
* ret: a new object containing the value of m_e1 if m_guard is a boolean true
* a new object containing the value of m_e2 if m_guard is a boolean false
* an new errorvalue if m_guard is not a boolean
*/
CValue* CIfExpr::Calculate()
{
CValue *guardval;
guardval = m_guard->Calculate();
const STR_String& text = guardval->GetText();
guardval->Release();
if (&text == &CBoolValue::sTrueString)
{
return m_e1->Calculate();
}
else if (&text == &CBoolValue::sFalseString)
{
return m_e2->Calculate();
}
else
{
return new CErrorValue("Guard should be of boolean type");
}
}
bool CIfExpr::MergeExpression(CExpression *otherexpr)
{
assertd(false);
return false;
}
bool CIfExpr::IsInside(float x,float y,float z,bool bBorderInclude)
{
assertd(false);
return false;
}
bool CIfExpr::NeedsRecalculated()
{
return (m_guard->NeedsRecalculated() ||
m_e1->NeedsRecalculated() ||
m_e2->NeedsRecalculated());
}
CExpression* CIfExpr::CheckLink(std::vector<CBrokenLinkInfo*>& brokenlinks)
{
assertd(false);
return NULL;
}
void CIfExpr::ClearModified()
{
assertd(false);
}
void CIfExpr::BroadcastOperators(VALUE_OPERATOR op)
{
assertd(false);
}
unsigned char CIfExpr::GetExpressionID()
{
return CIFEXPRESSIONID;
}