forked from a1batross/Paranoia2_original
45 lines
2.2 KiB
C
45 lines
2.2 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[4]; // variable sized
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} winding_t;
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#define WindingSize( w ) (( w ) ? ((int)((winding_t *)0)->p[(w)->numpoints]) : 0)
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#define MAX_POINTS_ON_WINDING 128
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#define EDGE_LENGTH 0.2
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winding_t *AllocWinding( int points );
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winding_t *CopyWinding( const winding_t *w );
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winding_t *CopyWinding( int numpoints, vec3_t *points );
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void ReverseWinding( winding_t **inout );
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void FreeWinding( winding_t *w );
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vec_t WindingArea( const winding_t *w );
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void WindingCenter( winding_t *w, vec3_t center );
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vec_t WindingAreaAndBalancePoint( winding_t *w, vec3_t center );
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bool ChopWindingInPlace( winding_t **inout, const vec3_t normal, vec_t dist, vec_t epsilon, bool keepon = true );
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winding_t *TryMergeWindingEpsilon( winding_t *w1, winding_t *w2, const vec3_t planenormal, vec_t epsilon );
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void ClipWindingEpsilon( winding_t *in, const vec3_t normal, vec_t dist, vec_t epsilon, winding_t **front, winding_t **back, bool keepon = false );
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void DivideWindingEpsilon( winding_t *in, vec3_t normal, vec_t dist, vec_t eps, winding_t **fw, winding_t **bw, vec_t *fnorm = 0, bool keepon = true );
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bool BiteWindingEpsilon( winding_t **in1, winding_t **in2, const vec3_t planenormal, vec_t epsilon );
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bool PointInWindingEpsilon( const winding_t *w, const vec3_t planenormal, const vec3_t point, vec_t epsilon = 0.0, bool noedge = true );
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vec_t WindingSnapPointEpsilon( const winding_t *w, const vec3_t planenormal, vec3_t point, vec_t width, vec_t maxmove );
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void WindingSnapPoint( const winding_t *w, const vec3_t planenormal, vec3_t point );
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winding_t *BaseWindingForPlane( const vec3_t normal, vec_t dist );
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void CheckWindingEpsilon( winding_t *w, vec_t epsilon, bool show_warnings );
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void WindingPlane (winding_t *w, vec3_t normal, vec_t *dist );
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void RemoveColinearPointsEpsilon( winding_t *w, vec_t epsilon );
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int WindingOnPlaneSide( winding_t *w, const vec3_t normal, vec_t dist, vec_t epsilon );
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void WindingBounds( winding_t *w, vec3_t mins, vec3_t maxs, bool merge = false );
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void pw( winding_t *w );
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