forked from valve/halflife-sdk
36 lines
1.2 KiB
C
36 lines
1.2 KiB
C
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/***
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*
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* Copyright (c) 1998, 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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****/
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typedef struct
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{
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int numpoints;
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vec3_t p[8]; // variable sized
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} winding_t;
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#define MAX_POINTS_ON_WINDING 128
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winding_t *AllocWinding (int points);
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vec_t WindingArea (winding_t *w);
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void WindingCenter (winding_t *w, vec3_t center);
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void ClipWinding (winding_t *in, vec3_t normal, vec_t dist,
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winding_t **front, winding_t **back);
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void ClipWindingNoCopy (winding_t *in, vec3_t normal, vec_t dist,
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winding_t **front, winding_t **back);
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winding_t *ChopWinding (winding_t *in, vec3_t normal, vec_t dist);
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winding_t *ChopWindingNoFree (winding_t *in, vec3_t normal, vec_t dist);
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winding_t *CopyWinding (winding_t *w);
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winding_t *BaseWindingForPlane (vec3_t normal, float dist);
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void CheckWinding (winding_t *w);
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void WindingPlane (winding_t *w, vec3_t normal, vec_t *dist);
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void RemoveColinearPoints (winding_t *w);
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int WindingOnPlaneSide (winding_t *w, vec3_t normal, vec_t dist);
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void FreeWinding (winding_t *w);
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void WindingBounds (winding_t *w, vec3_t mins, vec3_t maxs);
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