36 lines
1.2 KiB
C
36 lines
1.2 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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****/
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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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