1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
|
// EmptyValue.cpp: implementation of the CEmptyValue 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 "EmptyValue.h"
#include "IntValue.h"
#include "FloatValue.h"
#include "StringValue.h"
#include "ErrorValue.h"
#include "ListValue.h"
#include "VoidValue.h"
//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////
CEmptyValue::CEmptyValue()
/*
pre:
effect: constructs a new CEmptyValue
*/
{
SetModified(false);
}
CEmptyValue::~CEmptyValue()
/*
pre:
effect: deletes the object
*/
{
}
CValue * CEmptyValue::Calc(VALUE_OPERATOR op, CValue * val)
/*
pre:
ret: a new object containing the result of applying operator op to this
object and val
*/
{
return val->CalcFinal(VALUE_EMPTY_TYPE, op, this);
}
CValue * CEmptyValue::CalcFinal(VALUE_DATA_TYPE dtype, VALUE_OPERATOR op, CValue * val)
/*
pre: the type of val is dtype
ret: a new object containing the result of applying operator op to val and
this object
*/
{
return val->AddRef();
}
float CEmptyValue::GetNumber()
{
return 0;
}
CListValue* CEmptyValue::GetPolySoup()
{
CListValue* soup = new CListValue();
//don't add any poly, while it's an empty value
return soup;
}
bool CEmptyValue::IsInside(CValue* testpoint,bool bBorderInclude)
{
// empty space is solid, so always inside
return true;
}
double* CEmptyValue::GetVector3(bool bGetTransformedVec)
{
assertd(false); // don't get vector from me
return ZeroVector();
}
static STR_String emptyString = STR_String("");
const STR_String & CEmptyValue::GetText()
{
return emptyString;
}
CValue* CEmptyValue::GetReplica()
{
CEmptyValue* replica = new CEmptyValue(*this);
CValue::AddDataToReplica(replica);
return replica;
}
|
