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annotate libs/vmath/vector.h @ 2:81d35769f546

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added the tunnel effect source
author John Tsiombikas <nuclear@member.fsf.org>
date Sat, 19 Sep 2015 05:51:51 +0300
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nuclear@2 1 /*
nuclear@2 2 libvmath - a vector math library
nuclear@2 3 Copyright (C) 2004-2011 John Tsiombikas <nuclear@member.fsf.org>
nuclear@2 4
nuclear@2 5 This program is free software: you can redistribute it and/or modify
nuclear@2 6 it under the terms of the GNU Lesser General Public License as published
nuclear@2 7 by the Free Software Foundation, either version 3 of the License, or
nuclear@2 8 (at your option) any later version.
nuclear@2 9
nuclear@2 10 This program is distributed in the hope that it will be useful,
nuclear@2 11 but WITHOUT ANY WARRANTY; without even the implied warranty of
nuclear@2 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
nuclear@2 13 GNU Lesser General Public License for more details.
nuclear@2 14
nuclear@2 15 You should have received a copy of the GNU Lesser General Public License
nuclear@2 16 along with this program. If not, see <http://www.gnu.org/licenses/>.
nuclear@2 17 */
nuclear@2 18
nuclear@2 19 #ifndef VMATH_VECTOR_H_
nuclear@2 20 #define VMATH_VECTOR_H_
nuclear@2 21
nuclear@2 22 #include <stdio.h>
nuclear@2 23 #include "vmath_types.h"
nuclear@2 24
nuclear@2 25 #ifdef __cplusplus
nuclear@2 26 extern "C" {
nuclear@2 27 #endif /* __cplusplus */
nuclear@2 28
nuclear@2 29 /* C 2D vector functions */
nuclear@2 30 static inline vec2_t v2_cons(scalar_t x, scalar_t y);
nuclear@2 31 static inline void v2_print(FILE *fp, vec2_t v);
nuclear@2 32
nuclear@2 33 static inline vec2_t v2_add(vec2_t v1, vec2_t v2);
nuclear@2 34 static inline vec2_t v2_sub(vec2_t v1, vec2_t v2);
nuclear@2 35 static inline vec2_t v2_scale(vec2_t v, scalar_t s);
nuclear@2 36 static inline scalar_t v2_dot(vec2_t v1, vec2_t v2);
nuclear@2 37 static inline scalar_t v2_length(vec2_t v);
nuclear@2 38 static inline scalar_t v2_length_sq(vec2_t v);
nuclear@2 39 static inline vec2_t v2_normalize(vec2_t v);
nuclear@2 40
nuclear@2 41 static inline vec2_t v2_lerp(vec2_t v1, vec2_t v2, scalar_t t);
nuclear@2 42
nuclear@2 43 /* C 3D vector functions */
nuclear@2 44 static inline vec3_t v3_cons(scalar_t x, scalar_t y, scalar_t z);
nuclear@2 45 static inline void v3_print(FILE *fp, vec3_t v);
nuclear@2 46
nuclear@2 47 static inline vec3_t v3_add(vec3_t v1, vec3_t v2);
nuclear@2 48 static inline vec3_t v3_sub(vec3_t v1, vec3_t v2);
nuclear@2 49 static inline vec3_t v3_neg(vec3_t v);
nuclear@2 50 static inline vec3_t v3_mul(vec3_t v1, vec3_t v2);
nuclear@2 51 static inline vec3_t v3_scale(vec3_t v1, scalar_t s);
nuclear@2 52 static inline scalar_t v3_dot(vec3_t v1, vec3_t v2);
nuclear@2 53 static inline vec3_t v3_cross(vec3_t v1, vec3_t v2);
nuclear@2 54 static inline scalar_t v3_length(vec3_t v);
nuclear@2 55 static inline scalar_t v3_length_sq(vec3_t v);
nuclear@2 56 static inline vec3_t v3_normalize(vec3_t v);
nuclear@2 57 static inline vec3_t v3_transform(vec3_t v, mat4_t m);
nuclear@2 58
nuclear@2 59 static inline vec3_t v3_rotate(vec3_t v, scalar_t x, scalar_t y, scalar_t z);
nuclear@2 60 static inline vec3_t v3_rotate_axis(vec3_t v, scalar_t angle, scalar_t x, scalar_t y, scalar_t z);
nuclear@2 61 static inline vec3_t v3_rotate_quat(vec3_t v, quat_t q);
nuclear@2 62
nuclear@2 63 static inline vec3_t v3_reflect(vec3_t v, vec3_t n);
nuclear@2 64
nuclear@2 65 static inline vec3_t v3_lerp(vec3_t v1, vec3_t v2, scalar_t t);
nuclear@2 66
nuclear@2 67 /* C 4D vector functions */
nuclear@2 68 static inline vec4_t v4_cons(scalar_t x, scalar_t y, scalar_t z, scalar_t w);
nuclear@2 69 static inline void v4_print(FILE *fp, vec4_t v);
nuclear@2 70
nuclear@2 71 static inline vec4_t v4_add(vec4_t v1, vec4_t v2);
nuclear@2 72 static inline vec4_t v4_sub(vec4_t v1, vec4_t v2);
nuclear@2 73 static inline vec4_t v4_neg(vec4_t v);
nuclear@2 74 static inline vec4_t v4_mul(vec4_t v1, vec4_t v2);
nuclear@2 75 static inline vec4_t v4_scale(vec4_t v, scalar_t s);
nuclear@2 76 static inline scalar_t v4_dot(vec4_t v1, vec4_t v2);
nuclear@2 77 static inline scalar_t v4_length(vec4_t v);
nuclear@2 78 static inline scalar_t v4_length_sq(vec4_t v);
nuclear@2 79 static inline vec4_t v4_normalize(vec4_t v);
nuclear@2 80 static inline vec4_t v4_transform(vec4_t v, mat4_t m);
nuclear@2 81
nuclear@2 82 #ifdef __cplusplus
nuclear@2 83 } /* extern "C" */
nuclear@2 84
nuclear@2 85 /* when included from C++ source files, also define the vector classes */
nuclear@2 86 #include <iostream>
nuclear@2 87
nuclear@2 88 /** 2D Vector */
nuclear@2 89 class Vector2 {
nuclear@2 90 public:
nuclear@2 91 scalar_t x, y;
nuclear@2 92
nuclear@2 93 explicit Vector2(scalar_t x = 0.0, scalar_t y = 0.0);
nuclear@2 94 Vector2(const vec2_t &vec);
nuclear@2 95 Vector2(const Vector3 &vec);
nuclear@2 96 Vector2(const Vector4 &vec);
nuclear@2 97
nuclear@2 98 inline scalar_t &operator [](int elem);
nuclear@2 99 inline const scalar_t &operator [](int elem) const;
nuclear@2 100
nuclear@2 101 inline scalar_t length() const;
nuclear@2 102 inline scalar_t length_sq() const;
nuclear@2 103 void normalize();
nuclear@2 104 Vector2 normalized() const;
nuclear@2 105
nuclear@2 106 void transform(const Matrix3x3 &mat);
nuclear@2 107 Vector2 transformed(const Matrix3x3 &mat) const;
nuclear@2 108
nuclear@2 109 void rotate(scalar_t angle);
nuclear@2 110 Vector2 rotated(scalar_t angle) const;
nuclear@2 111
nuclear@2 112 Vector2 reflection(const Vector2 &normal) const;
nuclear@2 113 Vector2 refraction(const Vector2 &normal, scalar_t src_ior, scalar_t dst_ior) const;
nuclear@2 114 };
nuclear@2 115
nuclear@2 116 /* unary operations */
nuclear@2 117 inline Vector2 operator -(const Vector2 &vec);
nuclear@2 118
nuclear@2 119 /* binary vector (op) vector operations */
nuclear@2 120 inline scalar_t dot_product(const Vector2 &v1, const Vector2 &v2);
nuclear@2 121
nuclear@2 122 inline Vector2 operator +(const Vector2 &v1, const Vector2 &v2);
nuclear@2 123 inline Vector2 operator -(const Vector2 &v1, const Vector2 &v2);
nuclear@2 124 inline Vector2 operator *(const Vector2 &v1, const Vector2 &v2);
nuclear@2 125 inline Vector2 operator /(const Vector2 &v1, const Vector2 &v2);
nuclear@2 126 inline bool operator ==(const Vector2 &v1, const Vector2 &v2);
nuclear@2 127
nuclear@2 128 inline void operator +=(Vector2 &v1, const Vector2 &v2);
nuclear@2 129 inline void operator -=(Vector2 &v1, const Vector2 &v2);
nuclear@2 130 inline void operator *=(Vector2 &v1, const Vector2 &v2);
nuclear@2 131 inline void operator /=(Vector2 &v1, const Vector2 &v2);
nuclear@2 132
nuclear@2 133 /* binary vector (op) scalar and scalar (op) vector operations */
nuclear@2 134 inline Vector2 operator +(const Vector2 &vec, scalar_t scalar);
nuclear@2 135 inline Vector2 operator +(scalar_t scalar, const Vector2 &vec);
nuclear@2 136 inline Vector2 operator -(const Vector2 &vec, scalar_t scalar);
nuclear@2 137 inline Vector2 operator *(const Vector2 &vec, scalar_t scalar);
nuclear@2 138 inline Vector2 operator *(scalar_t scalar, const Vector2 &vec);
nuclear@2 139 inline Vector2 operator /(const Vector2 &vec, scalar_t scalar);
nuclear@2 140
nuclear@2 141 inline void operator +=(Vector2 &vec, scalar_t scalar);
nuclear@2 142 inline void operator -=(Vector2 &vec, scalar_t scalar);
nuclear@2 143 inline void operator *=(Vector2 &vec, scalar_t scalar);
nuclear@2 144 inline void operator /=(Vector2 &vec, scalar_t scalar);
nuclear@2 145
nuclear@2 146 std::ostream &operator <<(std::ostream &out, const Vector2 &vec);
nuclear@2 147
nuclear@2 148 inline Vector2 lerp(const Vector2 &a, const Vector2 &b, scalar_t t);
nuclear@2 149 inline Vector2 catmull_rom_spline(const Vector2 &v0, const Vector2 &v1,
nuclear@2 150 const Vector2 &v2, const Vector2 &v3, scalar_t t);
nuclear@2 151
nuclear@2 152 /* 3D Vector */
nuclear@2 153 class Vector3 {
nuclear@2 154 public:
nuclear@2 155 scalar_t x, y, z;
nuclear@2 156
nuclear@2 157 explicit Vector3(scalar_t x = 0.0, scalar_t y = 0.0, scalar_t z = 0.0);
nuclear@2 158 Vector3(const vec3_t &vec);
nuclear@2 159 Vector3(const Vector2 &vec);
nuclear@2 160 Vector3(const Vector4 &vec);
nuclear@2 161 Vector3(const SphVector &sph);
nuclear@2 162
nuclear@2 163 Vector3 &operator =(const SphVector &sph);
nuclear@2 164
nuclear@2 165 inline scalar_t &operator [](int elem);
nuclear@2 166 inline const scalar_t &operator [](int elem) const;
nuclear@2 167
nuclear@2 168 inline scalar_t length() const;
nuclear@2 169 inline scalar_t length_sq() const;
nuclear@2 170 void normalize();
nuclear@2 171 Vector3 normalized() const;
nuclear@2 172
nuclear@2 173 void transform(const Matrix3x3 &mat);
nuclear@2 174 Vector3 transformed(const Matrix3x3 &mat) const;
nuclear@2 175 void transform(const Matrix4x4 &mat);
nuclear@2 176 Vector3 transformed(const Matrix4x4 &mat) const;
nuclear@2 177 void transform(const Quaternion &quat);
nuclear@2 178 Vector3 transformed(const Quaternion &quat) const;
nuclear@2 179
nuclear@2 180 void rotate(const Vector3 &euler);
nuclear@2 181 Vector3 rotated(const Vector3 &euler) const;
nuclear@2 182
nuclear@2 183 Vector3 reflection(const Vector3 &normal) const;
nuclear@2 184 Vector3 refraction(const Vector3 &normal, scalar_t src_ior, scalar_t dst_ior) const;
nuclear@2 185 Vector3 refraction(const Vector3 &normal, scalar_t ior) const;
nuclear@2 186 };
nuclear@2 187
nuclear@2 188 /* unary operations */
nuclear@2 189 inline Vector3 operator -(const Vector3 &vec);
nuclear@2 190
nuclear@2 191 /* binary vector (op) vector operations */
nuclear@2 192 inline scalar_t dot_product(const Vector3 &v1, const Vector3 &v2);
nuclear@2 193 inline Vector3 cross_product(const Vector3 &v1, const Vector3 &v2);
nuclear@2 194
nuclear@2 195 inline Vector3 operator +(const Vector3 &v1, const Vector3 &v2);
nuclear@2 196 inline Vector3 operator -(const Vector3 &v1, const Vector3 &v2);
nuclear@2 197 inline Vector3 operator *(const Vector3 &v1, const Vector3 &v2);
nuclear@2 198 inline Vector3 operator /(const Vector3 &v1, const Vector3 &v2);
nuclear@2 199 inline bool operator ==(const Vector3 &v1, const Vector3 &v2);
nuclear@2 200
nuclear@2 201 inline void operator +=(Vector3 &v1, const Vector3 &v2);
nuclear@2 202 inline void operator -=(Vector3 &v1, const Vector3 &v2);
nuclear@2 203 inline void operator *=(Vector3 &v1, const Vector3 &v2);
nuclear@2 204 inline void operator /=(Vector3 &v1, const Vector3 &v2);
nuclear@2 205
nuclear@2 206 /* binary vector (op) scalar and scalar (op) vector operations */
nuclear@2 207 inline Vector3 operator +(const Vector3 &vec, scalar_t scalar);
nuclear@2 208 inline Vector3 operator +(scalar_t scalar, const Vector3 &vec);
nuclear@2 209 inline Vector3 operator -(const Vector3 &vec, scalar_t scalar);
nuclear@2 210 inline Vector3 operator *(const Vector3 &vec, scalar_t scalar);
nuclear@2 211 inline Vector3 operator *(scalar_t scalar, const Vector3 &vec);
nuclear@2 212 inline Vector3 operator /(const Vector3 &vec, scalar_t scalar);
nuclear@2 213
nuclear@2 214 inline void operator +=(Vector3 &vec, scalar_t scalar);
nuclear@2 215 inline void operator -=(Vector3 &vec, scalar_t scalar);
nuclear@2 216 inline void operator *=(Vector3 &vec, scalar_t scalar);
nuclear@2 217 inline void operator /=(Vector3 &vec, scalar_t scalar);
nuclear@2 218
nuclear@2 219 std::ostream &operator <<(std::ostream &out, const Vector3 &vec);
nuclear@2 220
nuclear@2 221 inline Vector3 lerp(const Vector3 &a, const Vector3 &b, scalar_t t);
nuclear@2 222 inline Vector3 catmull_rom_spline(const Vector3 &v0, const Vector3 &v1,
nuclear@2 223 const Vector3 &v2, const Vector3 &v3, scalar_t t);
nuclear@2 224
nuclear@2 225 /* 4D Vector */
nuclear@2 226 class Vector4 {
nuclear@2 227 public:
nuclear@2 228 scalar_t x, y, z, w;
nuclear@2 229
nuclear@2 230 explicit Vector4(scalar_t x = 0.0, scalar_t y = 0.0, scalar_t z = 0.0, scalar_t w = 0.0);
nuclear@2 231 Vector4(const vec4_t &vec);
nuclear@2 232 Vector4(const Vector2 &vec);
nuclear@2 233 Vector4(const Vector3 &vec);
nuclear@2 234
nuclear@2 235 inline scalar_t &operator [](int elem);
nuclear@2 236 inline const scalar_t &operator [](int elem) const;
nuclear@2 237
nuclear@2 238 inline scalar_t length() const;
nuclear@2 239 inline scalar_t length_sq() const;
nuclear@2 240 void normalize();
nuclear@2 241 Vector4 normalized() const;
nuclear@2 242
nuclear@2 243 void transform(const Matrix4x4 &mat);
nuclear@2 244 Vector4 transformed(const Matrix4x4 &mat) const;
nuclear@2 245
nuclear@2 246 Vector4 reflection(const Vector4 &normal) const;
nuclear@2 247 Vector4 refraction(const Vector4 &normal, scalar_t src_ior, scalar_t dst_ior) const;
nuclear@2 248 };
nuclear@2 249
nuclear@2 250
nuclear@2 251 /* unary operations */
nuclear@2 252 inline Vector4 operator -(const Vector4 &vec);
nuclear@2 253
nuclear@2 254 /* binary vector (op) vector operations */
nuclear@2 255 inline scalar_t dot_product(const Vector4 &v1, const Vector4 &v2);
nuclear@2 256 inline Vector4 cross_product(const Vector4 &v1, const Vector4 &v2, const Vector4 &v3);
nuclear@2 257
nuclear@2 258 inline Vector4 operator +(const Vector4 &v1, const Vector4 &v2);
nuclear@2 259 inline Vector4 operator -(const Vector4 &v1, const Vector4 &v2);
nuclear@2 260 inline Vector4 operator *(const Vector4 &v1, const Vector4 &v2);
nuclear@2 261 inline Vector4 operator /(const Vector4 &v1, const Vector4 &v2);
nuclear@2 262 inline bool operator ==(const Vector4 &v1, const Vector4 &v2);
nuclear@2 263
nuclear@2 264 inline void operator +=(Vector4 &v1, const Vector4 &v2);
nuclear@2 265 inline void operator -=(Vector4 &v1, const Vector4 &v2);
nuclear@2 266 inline void operator *=(Vector4 &v1, const Vector4 &v2);
nuclear@2 267 inline void operator /=(Vector4 &v1, const Vector4 &v2);
nuclear@2 268
nuclear@2 269 /* binary vector (op) scalar and scalar (op) vector operations */
nuclear@2 270 inline Vector4 operator +(const Vector4 &vec, scalar_t scalar);
nuclear@2 271 inline Vector4 operator +(scalar_t scalar, const Vector4 &vec);
nuclear@2 272 inline Vector4 operator -(const Vector4 &vec, scalar_t scalar);
nuclear@2 273 inline Vector4 operator *(const Vector4 &vec, scalar_t scalar);
nuclear@2 274 inline Vector4 operator *(scalar_t scalar, const Vector4 &vec);
nuclear@2 275 inline Vector4 operator /(const Vector4 &vec, scalar_t scalar);
nuclear@2 276
nuclear@2 277 inline void operator +=(Vector4 &vec, scalar_t scalar);
nuclear@2 278 inline void operator -=(Vector4 &vec, scalar_t scalar);
nuclear@2 279 inline void operator *=(Vector4 &vec, scalar_t scalar);
nuclear@2 280 inline void operator /=(Vector4 &vec, scalar_t scalar);
nuclear@2 281
nuclear@2 282 std::ostream &operator <<(std::ostream &out, const Vector4 &vec);
nuclear@2 283
nuclear@2 284 inline Vector4 lerp(const Vector4 &v0, const Vector4 &v1, scalar_t t);
nuclear@2 285 inline Vector4 catmull_rom_spline(const Vector4 &v0, const Vector4 &v1,
nuclear@2 286 const Vector4 &v2, const Vector4 &v3, scalar_t t);
nuclear@2 287
nuclear@2 288 #endif /* __cplusplus */
nuclear@2 289
nuclear@2 290 #include "vector.inl"
nuclear@2 291
nuclear@2 292 #endif /* VMATH_VECTOR_H_ */