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<h1>FXVec3f.h</h1><div class="fragment"><pre>00001 <span class="comment">/********************************************************************************</span>
00002 <span class="comment">* *</span>
00003 <span class="comment">* S i n g l e - P r e c i s i o n 3 - E l e m e n t V e c t o r *</span>
00004 <span class="comment">* *</span>
00005 <span class="comment">*********************************************************************************</span>
00006 <span class="comment">* Copyright (C) 1994,2004 by Jeroen van der Zijp. All Rights Reserved. *</span>
00007 <span class="comment">*********************************************************************************</span>
00008 <span class="comment">* This library is free software; you can redistribute it and/or *</span>
00009 <span class="comment">* modify it under the terms of the GNU Lesser General Public *</span>
00010 <span class="comment">* License as published by the Free Software Foundation; either *</span>
00011 <span class="comment">* version 2.1 of the License, or (at your option) any later version. *</span>
00012 <span class="comment">* *</span>
00013 <span class="comment">* This library is distributed in the hope that it will be useful, *</span>
00014 <span class="comment">* but WITHOUT ANY WARRANTY; without even the implied warranty of *</span>
00015 <span class="comment">* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *</span>
00016 <span class="comment">* Lesser General Public License for more details. *</span>
00017 <span class="comment">* *</span>
00018 <span class="comment">* You should have received a copy of the GNU Lesser General Public *</span>
00019 <span class="comment">* License along with this library; if not, write to the Free Software *</span>
00020 <span class="comment">* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. *</span>
00021 <span class="comment">*********************************************************************************</span>
00022 <span class="comment">* $Id: FXVec3f.h,v 1.4 2004/02/08 17:17:34 fox Exp $ *</span>
00023 <span class="comment">********************************************************************************/</span>
00024 <span class="preprocessor">#ifndef FXVEC3F_H</span>
00025 <span class="preprocessor"></span><span class="preprocessor">#define FXVEC3F_H</span>
00026 <span class="preprocessor"></span>
00027
00028 <span class="keyword">namespace </span>FX {
00029
00030 <span class="comment"></span>
00031 <span class="comment">/// Single-precision 3-element vector</span>
<a name="l00032"></a><a class="code" href="classFX_1_1FXVec3f.html">00032</a> <span class="comment"></span><span class="keyword">class </span>FXAPI FXVec3f {
00033 <span class="keyword">public</span>:
00034 FXfloat x;
00035 FXfloat y;
00036 FXfloat z;
00037 <span class="keyword">public</span>:
00038 <span class="comment"></span>
00039 <span class="comment"> /// Default constructor</span>
<a name="l00040"></a><a class="code" href="classFX_1_1FXVec3f.html#a0">00040</a> <span class="comment"></span> FXVec3f(){}
00041 <span class="comment"></span>
00042 <span class="comment"> /// Copy constructor</span>
<a name="l00043"></a><a class="code" href="classFX_1_1FXVec3f.html#a1">00043</a> <span class="comment"></span> FXVec3f(<span class="keyword">const</span> FXVec3f& v){x=v.<a class="code" href="classFX_1_1FXVec3f.html#o0">x</a>;y=v.<a class="code" href="classFX_1_1FXVec3f.html#o1">y</a>;z=v.<a class="code" href="classFX_1_1FXVec3f.html#o2">z</a>;}
00044
00045 <span class="comment">// Initialize from array of floats</span>
00046 FXVec3f(<span class="keyword">const</span> FXfloat v[]){x=v[0];y=v[1];z=v[2];}
00047 <span class="comment"></span>
00048 <span class="comment"> /// Initialize with components</span>
<a name="l00049"></a><a class="code" href="classFX_1_1FXVec3f.html#a3">00049</a> <span class="comment"></span> FXVec3f(FXfloat xx,FXfloat yy,FXfloat zz=1.0f){x=xx;y=yy;z=zz;}
00050 <span class="comment"></span>
00051 <span class="comment"> /// Initialize with color</span>
00052 <span class="comment"></span> FXVec3f(FXColor color);
00053 <span class="comment"></span>
00054 <span class="comment"> /// Return a non-const reference to the ith element</span>
<a name="l00055"></a><a class="code" href="classFX_1_1FXVec3f.html#a5">00055</a> <span class="comment"></span> FXfloat& operator[](FXint i){<span class="keywordflow">return</span> (&x)[i];}
00056 <span class="comment"></span>
00057 <span class="comment"> /// Return a const reference to the ith element</span>
<a name="l00058"></a><a class="code" href="classFX_1_1FXVec3f.html#a6">00058</a> <span class="comment"></span> <span class="keyword">const</span> FXfloat& operator[](FXint i)<span class="keyword"> const </span>{<span class="keywordflow">return</span> (&x)[i];}
00059 <span class="comment"></span>
00060 <span class="comment"> /// Assign color</span>
00061 <span class="comment"></span> FXVec3f& operator=(FXColor color);
00062 <span class="comment"></span>
00063 <span class="comment"> /// Assignment</span>
<a name="l00064"></a><a class="code" href="classFX_1_1FXVec3f.html#a8">00064</a> <span class="comment"></span> FXVec3f& operator=(<span class="keyword">const</span> FXVec3f& v){x=v.<a class="code" href="classFX_1_1FXVec3f.html#o0">x</a>;y=v.<a class="code" href="classFX_1_1FXVec3f.html#o1">y</a>;z=v.<a class="code" href="classFX_1_1FXVec3f.html#o2">z</a>;<span class="keywordflow">return</span> *<span class="keyword">this</span>;}
00065 <span class="comment"></span>
00066 <span class="comment"> /// Assignment from array of floats</span>
<a name="l00067"></a><a class="code" href="classFX_1_1FXVec3f.html#a9">00067</a> <span class="comment"></span> FXVec3f& operator=(<span class="keyword">const</span> FXfloat v[]){x=v[0];y=v[1];z=v[2];<span class="keywordflow">return</span> *<span class="keyword">this</span>;}
00068 <span class="comment"></span>
00069 <span class="comment"> /// Assigning operators</span>
<a name="l00070"></a><a class="code" href="classFX_1_1FXVec3f.html#a10">00070</a> <span class="comment"></span> FXVec3f& operator*=(FXfloat n){x*=n;y*=n;z*=n;<span class="keywordflow">return</span> *<span class="keyword">this</span>;}
00071 FXVec3f& operator/=(FXfloat n){x/=n;y/=n;z/=n;<span class="keywordflow">return</span> *<span class="keyword">this</span>;}
00072 FXVec3f& operator+=(<span class="keyword">const</span> FXVec3f& v){x+=v.x;y+=v.y;z+=v.z;<span class="keywordflow">return</span> *<span class="keyword">this</span>;}
00073 FXVec3f& operator-=(<span class="keyword">const</span> FXVec3f& v){x-=v.x;y-=v.y;z-=v.z;<span class="keywordflow">return</span> *<span class="keyword">this</span>;}
00074 <span class="comment"></span>
00075 <span class="comment"> /// Conversions</span>
<a name="l00076"></a><a class="code" href="classFX_1_1FXVec3f.html#a14">00076</a> <span class="comment"></span> operator FXfloat*(){<span class="keywordflow">return</span> &x;}
00077 operator const FXfloat*()<span class="keyword"> const </span>{<span class="keywordflow">return</span> &x;}
00078 operator FXVec2f&(){<span class="keywordflow">return</span> *reinterpret_cast<FXVec2f*>(<span class="keyword">this</span>);}
00079 operator const FXVec2f&()<span class="keyword"> const </span>{<span class="keywordflow">return</span> *reinterpret_cast<const FXVec2f*>(<span class="keyword">this</span>);}
00080 <span class="comment"></span>
00081 <span class="comment"> /// Convert to color</span>
00082 <span class="comment"></span> operator FXColor() <span class="keyword">const</span>;
00083 <span class="comment"></span>
00084 <span class="comment"> /// Unary</span>
<a name="l00085"></a><a class="code" href="classFX_1_1FXVec3f.html#n0">00085</a> <span class="comment"></span> <span class="keyword">friend</span> FXAPI FXVec3f operator+(<span class="keyword">const</span> FXVec3f& v){<span class="keywordflow">return</span> v;}
00086 <span class="keyword">friend</span> FXAPI FXVec3f operator-(<span class="keyword">const</span> FXVec3f& v){<span class="keywordflow">return</span> FXVec3f(-v.x,-v.y,-v.z);}
00087 <span class="comment"></span>
00088 <span class="comment"> /// Adding</span>
<a name="l00089"></a><a class="code" href="classFX_1_1FXVec3f.html#n2">00089</a> <span class="comment"></span> <span class="keyword">friend</span> FXAPI FXVec3f operator+(<span class="keyword">const</span> FXVec3f& a,<span class="keyword">const</span> FXVec3f& b){<span class="keywordflow">return</span> FXVec3f(a.<a class="code" href="classFX_1_1FXVec3f.html#o0">x</a>+b.<a class="code" href="classFX_1_1FXVec3f.html#o0">x</a>,a.<a class="code" href="classFX_1_1FXVec3f.html#o1">y</a>+b.<a class="code" href="classFX_1_1FXVec3f.html#o1">y</a>,a.<a class="code" href="classFX_1_1FXVec3f.html#o2">z</a>+b.<a class="code" href="classFX_1_1FXVec3f.html#o2">z</a>);}
00090 <span class="keyword">friend</span> FXAPI FXVec3f operator-(<span class="keyword">const</span> FXVec3f& a,<span class="keyword">const</span> FXVec3f& b){<span class="keywordflow">return</span> FXVec3f(a.x-b.x,a.y-b.y,a.z-b.z);}
00091 <span class="comment"></span>
00092 <span class="comment"> /// Scaling</span>
<a name="l00093"></a><a class="code" href="classFX_1_1FXVec3f.html#n4">00093</a> <span class="comment"></span> <span class="keyword">friend</span> FXAPI FXVec3f operator*(<span class="keyword">const</span> FXVec3f& a,FXfloat n){<span class="keywordflow">return</span> FXVec3f(a.<a class="code" href="classFX_1_1FXVec3f.html#o0">x</a>*n,a.<a class="code" href="classFX_1_1FXVec3f.html#o1">y</a>*n,a.<a class="code" href="classFX_1_1FXVec3f.html#o2">z</a>*n);}
00094 <span class="keyword">friend</span> FXAPI FXVec3f operator*(FXfloat n,<span class="keyword">const</span> FXVec3f& a){<span class="keywordflow">return</span> FXVec3f(n*a.x,n*a.y,n*a.z);}
00095 <span class="keyword">friend</span> FXAPI FXVec3f operator/(<span class="keyword">const</span> FXVec3f& a,FXfloat n){<span class="keywordflow">return</span> FXVec3f(a.x/n,a.y/n,a.z/n);}
00096 <span class="keyword">friend</span> FXAPI FXVec3f operator/(FXfloat n,<span class="keyword">const</span> FXVec3f& a){<span class="keywordflow">return</span> FXVec3f(n/a.x,n/a.y,n/a.z);}
00097 <span class="comment"></span>
00098 <span class="comment"> /// Dot and cross products</span>
<a name="l00099"></a><a class="code" href="classFX_1_1FXVec3f.html#n8">00099</a> <span class="comment"></span> <span class="keyword">friend</span> FXAPI FXfloat operator*(<span class="keyword">const</span> FXVec3f& a,<span class="keyword">const</span> FXVec3f& b){<span class="keywordflow">return</span> a.<a class="code" href="classFX_1_1FXVec3f.html#o0">x</a>*b.<a class="code" href="classFX_1_1FXVec3f.html#o0">x</a>+a.<a class="code" href="classFX_1_1FXVec3f.html#o1">y</a>*b.<a class="code" href="classFX_1_1FXVec3f.html#o1">y</a>+a.<a class="code" href="classFX_1_1FXVec3f.html#o2">z</a>*b.<a class="code" href="classFX_1_1FXVec3f.html#o2">z</a>;}
00100 <span class="keyword">friend</span> FXAPI FXVec3f operator^(<span class="keyword">const</span> FXVec3f& a,<span class="keyword">const</span> FXVec3f& b){<span class="keywordflow">return</span> FXVec3f(a.y*b.z-a.z*b.y, a.z*b.x-a.x*b.z, a.x*b.y-a.y*b.x);}
00101 <span class="comment"></span>
00102 <span class="comment"> /// Test if zero</span>
<a name="l00103"></a><a class="code" href="classFX_1_1FXVec3f.html#n10">00103</a> <span class="comment"></span> <span class="keyword">friend</span> FXAPI <span class="keywordtype">int</span> operator!(<span class="keyword">const</span> FXVec3f& a){<span class="keywordflow">return</span> a.<a class="code" href="classFX_1_1FXVec3f.html#o0">x</a>==0.0f && a.<a class="code" href="classFX_1_1FXVec3f.html#o1">y</a>==0.0f && a.<a class="code" href="classFX_1_1FXVec3f.html#o2">z</a>==0.0f;}
00104 <span class="comment"></span>
00105 <span class="comment"> /// Equality tests</span>
<a name="l00106"></a><a class="code" href="classFX_1_1FXVec3f.html#n11">00106</a> <span class="comment"></span> <span class="keyword">friend</span> FXAPI <span class="keywordtype">int</span> operator==(<span class="keyword">const</span> FXVec3f& a,<span class="keyword">const</span> FXVec3f& b){<span class="keywordflow">return</span> a.<a class="code" href="classFX_1_1FXVec3f.html#o0">x</a>==b.<a class="code" href="classFX_1_1FXVec3f.html#o0">x</a> && a.<a class="code" href="classFX_1_1FXVec3f.html#o1">y</a>==b.<a class="code" href="classFX_1_1FXVec3f.html#o1">y</a> && a.<a class="code" href="classFX_1_1FXVec3f.html#o2">z</a>==b.<a class="code" href="classFX_1_1FXVec3f.html#o2">z</a>;}
00107 <span class="keyword">friend</span> FXAPI <span class="keywordtype">int</span> operator!=(<span class="keyword">const</span> FXVec3f& a,<span class="keyword">const</span> FXVec3f& b){<span class="keywordflow">return</span> a.x!=b.x || a.y!=b.y || a.z!=b.z;}
00108
00109 <span class="keyword">friend</span> FXAPI <span class="keywordtype">int</span> operator==(<span class="keyword">const</span> FXVec3f& a,FXfloat n){<span class="keywordflow">return</span> a.x==n && a.y==n && a.z==n;}
00110 <span class="keyword">friend</span> FXAPI <span class="keywordtype">int</span> operator!=(<span class="keyword">const</span> FXVec3f& a,FXfloat n){<span class="keywordflow">return</span> a.x!=n || a.y!=n || a.z!=n;}
00111
00112 <span class="keyword">friend</span> FXAPI <span class="keywordtype">int</span> operator==(FXfloat n,<span class="keyword">const</span> FXVec3f& a){<span class="keywordflow">return</span> n==a.x && n==a.y && n==a.z;}
00113 <span class="keyword">friend</span> FXAPI <span class="keywordtype">int</span> operator!=(FXfloat n,<span class="keyword">const</span> FXVec3f& a){<span class="keywordflow">return</span> n!=a.x || n!=a.y || n!=a.z;}
00114 <span class="comment"></span>
00115 <span class="comment"> /// Inequality tests</span>
<a name="l00116"></a><a class="code" href="classFX_1_1FXVec3f.html#n17">00116</a> <span class="comment"></span> <span class="keyword">friend</span> FXAPI <span class="keywordtype">int</span> operator<(<span class="keyword">const</span> FXVec3f& a,<span class="keyword">const</span> FXVec3f& b){<span class="keywordflow">return</span> a.<a class="code" href="classFX_1_1FXVec3f.html#o0">x</a><b.<a class="code" href="classFX_1_1FXVec3f.html#o0">x</a> && a.<a class="code" href="classFX_1_1FXVec3f.html#o1">y</a><b.<a class="code" href="classFX_1_1FXVec3f.html#o1">y</a> && a.<a class="code" href="classFX_1_1FXVec3f.html#o2">z</a><b.<a class="code" href="classFX_1_1FXVec3f.html#o2">z</a>;}
00117 <span class="keyword">friend</span> FXAPI <span class="keywordtype">int</span> operator<=(<span class="keyword">const</span> FXVec3f& a,<span class="keyword">const</span> FXVec3f& b){<span class="keywordflow">return</span> a.x<=b.x && a.y<=b.y && a.z<=b.z;}
00118 <span class="keyword">friend</span> FXAPI <span class="keywordtype">int</span> operator>(<span class="keyword">const</span> FXVec3f& a,<span class="keyword">const</span> FXVec3f& b){<span class="keywordflow">return</span> a.x>b.x && a.y>b.y && a.z>b.z;}
00119 <span class="keyword">friend</span> FXAPI <span class="keywordtype">int</span> operator>=(<span class="keyword">const</span> FXVec3f& a,<span class="keyword">const</span> FXVec3f& b){<span class="keywordflow">return</span> a.x>=b.x && a.y>=b.y && a.z>=b.z;}
00120
00121 <span class="keyword">friend</span> FXAPI <span class="keywordtype">int</span> operator<(<span class="keyword">const</span> FXVec3f& a,FXfloat n){<span class="keywordflow">return</span> a.x<n && a.y<n && a.z<n;}
00122 <span class="keyword">friend</span> FXAPI <span class="keywordtype">int</span> operator<=(<span class="keyword">const</span> FXVec3f& a,FXfloat n){<span class="keywordflow">return</span> a.x<=n && a.y<=n && a.z<=n;}
00123 <span class="keyword">friend</span> FXAPI <span class="keywordtype">int</span> operator>(<span class="keyword">const</span> FXVec3f& a,FXfloat n){<span class="keywordflow">return</span> a.x>n && a.y>n && a.z>n;}
00124 <span class="keyword">friend</span> FXAPI <span class="keywordtype">int</span> operator>=(<span class="keyword">const</span> FXVec3f& a,FXfloat n){<span class="keywordflow">return</span> a.x>=n && a.y>=n && a.z>=n;}
00125
00126 <span class="keyword">friend</span> FXAPI <span class="keywordtype">int</span> operator<(FXfloat n,<span class="keyword">const</span> FXVec3f& a){<span class="keywordflow">return</span> n<a.x && n<a.y && n<a.z;}
00127 <span class="keyword">friend</span> FXAPI <span class="keywordtype">int</span> operator<=(FXfloat n,<span class="keyword">const</span> FXVec3f& a){<span class="keywordflow">return</span> n<=a.x && n<=a.y && n<=a.z;}
00128 <span class="keyword">friend</span> FXAPI <span class="keywordtype">int</span> operator>(FXfloat n,<span class="keyword">const</span> FXVec3f& a){<span class="keywordflow">return</span> n>a.x && n>a.y && n>a.z;}
00129 <span class="keyword">friend</span> FXAPI <span class="keywordtype">int</span> operator>=(FXfloat n,<span class="keyword">const</span> FXVec3f& a){<span class="keywordflow">return</span> n>=a.x && n>=a.y && n>=a.z;}
00130 <span class="comment"></span>
00131 <span class="comment"> /// Length and square of length</span>
<a name="l00132"></a><a class="code" href="classFX_1_1FXVec3f.html#n29">00132</a> <span class="comment"></span> <span class="keyword">friend</span> FXAPI FXfloat len2(<span class="keyword">const</span> FXVec3f& a){ <span class="keywordflow">return</span> a.<a class="code" href="classFX_1_1FXVec3f.html#o0">x</a>*a.<a class="code" href="classFX_1_1FXVec3f.html#o0">x</a>+a.<a class="code" href="classFX_1_1FXVec3f.html#o1">y</a>*a.<a class="code" href="classFX_1_1FXVec3f.html#o1">y</a>+a.<a class="code" href="classFX_1_1FXVec3f.html#o2">z</a>*a.<a class="code" href="classFX_1_1FXVec3f.html#o2">z</a>; }
00133 <span class="keyword">friend</span> FXAPI FXfloat len(<span class="keyword">const</span> FXVec3f& a){ <span class="keywordflow">return</span> sqrtf(len2(a)); }
00134 <span class="comment"></span>
00135 <span class="comment"> /// Normalize vector</span>
00136 <span class="comment"></span> <span class="keyword">friend</span> FXAPI FXVec3f normalize(<span class="keyword">const</span> FXVec3f& a);
00137 <span class="comment"></span>
00138 <span class="comment"> /// Lowest or highest components</span>
<a name="l00139"></a><a class="code" href="classFX_1_1FXVec3f.html#n32">00139</a> <span class="comment"></span> <span class="keyword">friend</span> FXAPI FXVec3f lo(<span class="keyword">const</span> FXVec3f& a,<span class="keyword">const</span> FXVec3f& b){<span class="keywordflow">return</span> FXVec3f(FXMIN(a.<a class="code" href="classFX_1_1FXVec3f.html#o0">x</a>,b.<a class="code" href="classFX_1_1FXVec3f.html#o0">x</a>),FXMIN(a.<a class="code" href="classFX_1_1FXVec3f.html#o1">y</a>,b.<a class="code" href="classFX_1_1FXVec3f.html#o1">y</a>),FXMIN(a.<a class="code" href="classFX_1_1FXVec3f.html#o2">z</a>,b.<a class="code" href="classFX_1_1FXVec3f.html#o2">z</a>));}
00140 <span class="keyword">friend</span> FXAPI FXVec3f hi(<span class="keyword">const</span> FXVec3f& a,<span class="keyword">const</span> FXVec3f& b){<span class="keywordflow">return</span> FXVec3f(FXMAX(a.x,b.x),FXMAX(a.y,b.y),FXMAX(a.z,b.z));}
00141 <span class="comment"></span>
00142 <span class="comment"> /// Save vector to a stream</span>
00143 <span class="comment"></span> <span class="keyword">friend</span> FXAPI FXStream& operator<<(FXStream& store,<span class="keyword">const</span> FXVec3f& v);
00144 <span class="comment"></span>
00145 <span class="comment"> /// Load vector from a stream</span>
00146 <span class="comment"></span> <span class="keyword">friend</span> FXAPI FXStream& operator>>(FXStream& store,FXVec3f& v);
00147 };
00148
00149 }
00150
00151 <span class="preprocessor">#endif</span>
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