mirror of
https://github.com/w23/xash3d-fwgs
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5e0a0765ce
The `.editorconfig` file in this repo is configured to trim all trailing
whitespace regardless of whether the line is modified.
Trims all trailing whitespace in the repository to make the codebase easier
to work with in editors that respect `.editorconfig`.
`git blame` becomes less useful on these lines but it already isn't very useful.
Commands:
```
find . -type f -name '*.h' -exec sed --in-place 's/[[:space:]]\+$//' {} \+
find . -type f -name '*.c' -exec sed --in-place 's/[[:space:]]\+$//' {} \+
```
96 lines
3.1 KiB
C
96 lines
3.1 KiB
C
/***
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*
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* Copyright (c) 1996-2002, Valve LLC. All rights reserved.
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*
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* This product contains software technology licensed from Id
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* Software, Inc. ("Id Technology"). Id Technology (c) 1996 Id Software, Inc.
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* All Rights Reserved.
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*
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* Use, distribution, and modification of this source code and/or resulting
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* object code is restricted to non-commercial enhancements to products from
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* Valve LLC. All other use, distribution, or modification is prohibited
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* without written permission from Valve LLC.
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*
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****/
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// mathlib.h
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#include <math.h>
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typedef float vec_t;
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typedef vec_t vec2_t[2];
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typedef vec_t vec3_t[3];
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typedef vec_t vec4_t[4]; // x,y,z,w
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#ifndef M_PI
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#define M_PI 3.14159265358979323846 // matches value in gcc v2 math.h
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#endif
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struct mplane_s;
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extern vec3_t vec3_origin;
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extern int nanmask;
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#define IS_NAN(x) (((*(int *)&x)&nanmask)==nanmask)
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#ifndef VECTOR_H
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#define DotProduct(x,y) ((x)[0]*(y)[0]+(x)[1]*(y)[1]+(x)[2]*(y)[2])
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#endif
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#define VectorSubtract(a,b,c) {(c)[0]=(a)[0]-(b)[0];(c)[1]=(a)[1]-(b)[1];(c)[2]=(a)[2]-(b)[2];}
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#define VectorAdd(a,b,c) {(c)[0]=(a)[0]+(b)[0];(c)[1]=(a)[1]+(b)[1];(c)[2]=(a)[2]+(b)[2];}
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#define VectorCopy(a,b) {(b)[0]=(a)[0];(b)[1]=(a)[1];(b)[2]=(a)[2];}
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#define VectorClear(a) {(a)[0]=0.0;(a)[1]=0.0;(a)[2]=0.0;}
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void VectorMA (const vec3_t veca, float scale, const vec3_t vecb, vec3_t vecc);
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vec_t _DotProduct (vec3_t v1, vec3_t v2);
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void _VectorSubtract (vec3_t veca, vec3_t vecb, vec3_t out);
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void _VectorAdd (vec3_t veca, vec3_t vecb, vec3_t out);
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void _VectorCopy (vec3_t in, vec3_t out);
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int VectorCompare (const vec3_t v1, const vec3_t v2);
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float Length (const vec3_t v);
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void CrossProduct (const vec3_t v1, const vec3_t v2, vec3_t cross);
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float VectorNormalize (vec3_t v); // returns vector length
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void VectorInverse (vec3_t v);
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void VectorScale (const vec3_t in, vec_t scale, vec3_t out);
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void R_ConcatRotations (float in1[3][3], float in2[3][3], float out[3][3]);
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void R_ConcatTransforms (float in1[3][4], float in2[3][4], float out[3][4]);
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void AngleVectors (const vec3_t angles, vec3_t forward, vec3_t right, vec3_t up);
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void AngleVectorsTranspose (const vec3_t angles, vec3_t forward, vec3_t right, vec3_t up);
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#define AngleIVectors AngleVectorsTranspose
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void AngleMatrix (const vec3_t angles, float (*matrix)[4] );
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void AngleIMatrix (const vec3_t angles, float (*matrix)[4] );
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void VectorTransform (const vec3_t in1, float in2[3][4], vec3_t out);
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void NormalizeAngles( vec3_t angles );
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void InterpolateAngles( vec3_t start, vec3_t end, vec3_t output, float frac );
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float AngleBetweenVectors( const vec3_t v1, const vec3_t v2 );
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void VectorMatrix( vec3_t forward, vec3_t right, vec3_t up);
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void VectorAngles( const vec3_t forward, vec3_t angles );
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int InvertMatrix( const float * m, float *out );
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int BoxOnPlaneSide (vec3_t emins, vec3_t emaxs, struct mplane_s *plane);
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float anglemod(float a);
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#define BOX_ON_PLANE_SIDE(emins, emaxs, p) \
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(((p)->type < 3)? \
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( \
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((p)->dist <= (emins)[(p)->type])? \
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1 \
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: \
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( \
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((p)->dist >= (emaxs)[(p)->type])?\
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2 \
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: \
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3 \
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) \
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) \
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: \
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BoxOnPlaneSide( (emins), (emaxs), (p)))
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