cs16-client-legacy/utils/common/polylib.h
2016-03-05 22:29:55 +03:00

36 lines
1.2 KiB
C

/***
*
* Copyright (c) 1996-2002, Valve LLC. All rights reserved.
*
* This product contains software technology licensed from Id
* Software, Inc. ("Id Technology"). Id Technology (c) 1996 Id Software, Inc.
* All Rights Reserved.
*
****/
typedef struct
{
int numpoints;
vec3_t p[8]; // variable sized
} winding_t;
#define MAX_POINTS_ON_WINDING 128
winding_t *AllocWinding (int points);
vec_t WindingArea (winding_t *w);
void WindingCenter (winding_t *w, vec3_t center);
void ClipWinding (winding_t *in, vec3_t normal, vec_t dist,
winding_t **front, winding_t **back);
void ClipWindingNoCopy (winding_t *in, vec3_t normal, vec_t dist,
winding_t **front, winding_t **back);
winding_t *ChopWinding (winding_t *in, vec3_t normal, vec_t dist);
winding_t *ChopWindingNoFree (winding_t *in, vec3_t normal, vec_t dist);
winding_t *CopyWinding (winding_t *w);
winding_t *BaseWindingForPlane (vec3_t normal, float dist);
void CheckWinding (winding_t *w);
void WindingPlane (winding_t *w, vec3_t normal, vec_t *dist);
void RemoveColinearPoints (winding_t *w);
int WindingOnPlaneSide (winding_t *w, vec3_t normal, vec_t dist);
void FreeWinding (winding_t *w);
void WindingBounds (winding_t *w, vec3_t mins, vec3_t maxs);