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1 /*
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2 libvmath - a vector math library
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3 Copyright (C) 2004-2015 John Tsiombikas <nuclear@member.fsf.org>
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4
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5 This program is free software: you can redistribute it and/or modify
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6 it under the terms of the GNU Lesser General Public License as published
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7 by the Free Software Foundation, either version 3 of the License, or
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8 (at your option) any later version.
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9
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10 This program is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 GNU Lesser General Public License for more details.
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14
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15 You should have received a copy of the GNU Lesser General Public License
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16 along with this program. If not, see <http://www.gnu.org/licenses/>.
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17 */
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18
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19 #ifndef VMATH_TYPES_H_
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20 #define VMATH_TYPES_H_
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21
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22 #include "vmath_config.h"
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23
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24 #define SMALL_NUMBER 1.e-4
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25 #define XSMALL_NUMBER 1.e-8
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26 #define ERROR_MARGIN 1.e-6
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27
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28
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29 #ifdef SINGLE_PRECISION_MATH
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30 typedef float scalar_t;
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31 #else
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32 typedef double scalar_t;
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33 #endif /* floating point precision */
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34
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35 /* vectors */
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36 typedef struct { scalar_t x, y; } vec2_t;
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37 typedef struct { scalar_t x, y, z; } vec3_t;
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38 typedef struct { scalar_t x, y, z, w; } vec4_t;
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39
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40 /* quaternions */
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41 typedef vec4_t quat_t;
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42
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43 /* matrices */
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44 typedef scalar_t mat3_t[3][3];
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45 typedef scalar_t mat4_t[4][4];
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46
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47
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48 #ifdef __cplusplus
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49 class Vector2;
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50 class Vector3;
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51 class Vector4;
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52 class Quaternion;
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53 class Matrix3x3;
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54 class Matrix4x4;
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55 class SphVector;
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56 #endif /* __cplusplus */
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57
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58 #endif /* VMATH_TYPES_H_ */
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