|
vector3.h00001 /* 00002 Copyright (C) 1998,1999,2000 by Jorrit Tyberghein 00003 Largely rewritten by Ivan Avramovic <ivan@avramovic.com> 00004 00005 This library is free software; you can redistribute it and/or 00006 modify it under the terms of the GNU Library General Public 00007 License as published by the Free Software Foundation; either 00008 version 2 of the License, or (at your option) any later version. 00009 00010 This library is distributed in the hope that it will be useful, 00011 but WITHOUT ANY WARRANTY; without even the implied warranty of 00012 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00013 Library General Public License for more details. 00014 00015 You should have received a copy of the GNU Library General Public 00016 License along with this library; if not, write to the Free 00017 Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 00018 */ 00019 00020 #ifndef __CS_VECTOR3_H__ 00021 #define __CS_VECTOR3_H__ 00022 00023 #ifndef __CS_CSSYSDEFS_H__ 00024 #error "cssysdef.h must be included in EVERY source file!" 00025 #endif 00026 00027 #include "csgeom/math3d_d.h" 00028 00032 class csVector3 00033 { 00034 public: 00036 float x; 00038 float y; 00040 float z; 00041 00047 csVector3 () {} 00048 00054 csVector3 (float m) : x(m), y(m), z(m) {} 00055 00057 csVector3 (float ix, float iy, float iz = 0) : x(ix), y(iy), z(iz) {} 00058 00060 csVector3 (const csVector3& v) : x(v.x), y(v.y), z(v.z) {} 00061 00063 csVector3 (const csDVector3&); 00064 00066 inline friend csVector3 operator+ (const csVector3& v1, const csVector3& v2) 00067 { return csVector3(v1.x+v2.x, v1.y+v2.y, v1.z+v2.z); } 00068 00070 inline friend csDVector3 operator+ (const csDVector3& v1, const csVector3& v2) 00071 { return csDVector3(v1.x+v2.x, v1.y+v2.y, v1.z+v2.z); } 00072 00074 inline friend csDVector3 operator+ (const csVector3& v1, const csDVector3& v2) 00075 { return csDVector3(v1.x+v2.x, v1.y+v2.y, v1.z+v2.z); } 00076 00078 inline friend csVector3 operator- (const csVector3& v1, const csVector3& v2) 00079 { return csVector3(v1.x-v2.x, v1.y-v2.y, v1.z-v2.z); } 00080 00082 inline friend csDVector3 operator- (const csVector3& v1, const csDVector3& v2) 00083 { return csDVector3(v1.x-v2.x, v1.y-v2.y, v1.z-v2.z); } 00084 00086 inline friend csDVector3 operator- (const csDVector3& v1, const csVector3& v2) 00087 { return csDVector3(v1.x-v2.x, v1.y-v2.y, v1.z-v2.z); } 00088 00090 inline friend float operator* (const csVector3& v1, const csVector3& v2) 00091 { return v1.x*v2.x + v1.y*v2.y + v1.z*v2.z; } 00092 00094 inline friend csVector3 operator% (const csVector3& v1, const csVector3& v2) 00095 { 00096 return csVector3 (v1.y*v2.z-v1.z*v2.y, 00097 v1.z*v2.x-v1.x*v2.z, 00098 v1.x*v2.y-v1.y*v2.x); 00099 } 00100 00102 void Cross (const csVector3 & px, const csVector3 & py) 00103 { 00104 x = px.y*py.z - px.z*py.y; 00105 y = px.z*py.x - px.x*py.z; 00106 z = px.x*py.y - px.y*py.x; 00107 } 00108 00110 inline friend csVector3 operator* (const csVector3& v, float f) 00111 { return csVector3(v.x*f, v.y*f, v.z*f); } 00112 00114 inline friend csVector3 operator* (float f, const csVector3& v) 00115 { return csVector3(v.x*f, v.y*f, v.z*f); } 00116 00118 inline friend csDVector3 operator* (const csVector3& v, double f) 00119 { return csDVector3(v) * f; } 00120 00122 inline friend csDVector3 operator* (double f, const csVector3& v) 00123 { return csDVector3(v) * f; } 00124 00126 inline friend csVector3 operator* (const csVector3& v, int f) 00127 { return v * (float)f; } 00128 00130 inline friend csVector3 operator* (int f, const csVector3& v) 00131 { return v * (float)f; } 00132 00134 inline friend csVector3 operator/ (const csVector3& v, float f) 00135 { f = 1.0f/f; return csVector3(v.x*f, v.y*f, v.z*f); } 00136 00138 inline friend csDVector3 operator/ (const csVector3& v, double f) 00139 { return csDVector3(v) / f; } 00140 00142 inline friend csVector3 operator/ (const csVector3& v, int f) 00143 { return v / (float)f; } 00144 00146 inline friend bool operator== (const csVector3& v1, const csVector3& v2) 00147 { return v1.x==v2.x && v1.y==v2.y && v1.z==v2.z; } 00148 00150 inline friend bool operator!= (const csVector3& v1, const csVector3& v2) 00151 { return v1.x!=v2.x || v1.y!=v2.y || v1.z!=v2.z; } 00152 00154 inline friend csVector3 operator>> (const csVector3& v1, const csVector3& v2) 00155 { return v2*(v1*v2)/(v2*v2); } 00156 00158 inline friend csVector3 operator<< (const csVector3& v1, const csVector3& v2) 00159 { return v1*(v1*v2)/(v1*v1); } 00160 00162 inline friend bool operator< (const csVector3& v, float f) 00163 { return ABS(v.x)<f && ABS(v.y)<f && ABS(v.z)<f; } 00164 00166 inline friend bool operator> (float f, const csVector3& v) 00167 { return ABS(v.x)<f && ABS(v.y)<f && ABS(v.z)<f; } 00168 00170 inline float operator[] (int n) const { return !n?x:n&1?y:z; } 00171 00173 inline float & operator[] (int n) { return !n?x:n&1?y:z; } 00174 00176 inline csVector3& operator+= (const csVector3& v) 00177 { 00178 x += v.x; 00179 y += v.y; 00180 z += v.z; 00181 00182 return *this; 00183 } 00184 00186 inline csVector3& operator-= (const csVector3& v) 00187 { 00188 x -= v.x; 00189 y -= v.y; 00190 z -= v.z; 00191 00192 return *this; 00193 } 00194 00196 inline csVector3& operator*= (float f) 00197 { x *= f; y *= f; z *= f; return *this; } 00198 00200 inline csVector3& operator/= (float f) 00201 { f = 1.0f / f; x *= f; y *= f; z *= f; return *this; } 00202 00204 inline csVector3 operator+ () const { return *this; } 00205 00207 inline csVector3 operator- () const { return csVector3(-x,-y,-z); } 00208 00210 inline void Set (float sx, float sy, float sz) { x = sx; y = sy; z = sz; } 00211 00213 inline void Set (const csVector3& v) { x = v.x; y = v.y; z = v.z; } 00214 00216 float Norm () const; 00217 00219 float SquaredNorm () const 00220 { return x * x + y * y + z * z; } 00221 00227 csVector3 Unit () const { return (*this)/(this->Norm()); } 00228 00230 inline static float Norm (const csVector3& v) { return v.Norm(); } 00231 00233 inline static csVector3 Unit (const csVector3& v) { return v.Unit(); } 00234 00236 void Normalize (); 00237 00239 inline bool IsZero () const 00240 { return (x == 0) && (y == 0) && (z == 0); } 00241 }; 00242 00243 #endif // __CS_VECTOR3_H__ Generated for Crystal Space by doxygen 1.2.5 written by Dimitri van Heesch, ©1997-2000 |