39 lines
1.1 KiB
C
39 lines
1.1 KiB
C
/* common/polylib.h */
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#ifndef __COMMON_POLYLIB_H__
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#define __COMMON_POLYLIB_H__
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct {
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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 MAX_POINTS_ON_WINDING 64
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#define ON_EPSILON 0.1
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winding_t *AllocWinding(int points);
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vec_t WindingArea(const winding_t * w);
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void WindingCenter(const winding_t * w, vec3_t center);
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void WindingBounds (const winding_t *w, vec3_t mins, vec3_t maxs);
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void ClipWinding(const 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 *CopyWinding(const winding_t * w);
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winding_t *BaseWindingForPlane(const vec3_t normal, float dist);
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void CheckWinding(const winding_t * w);
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void WindingPlane(const winding_t * w, vec3_t normal, vec_t *dist);
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void RemoveColinearPoints(winding_t * w);
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typedef void (*save_winding_fn_t)(winding_t *w);
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void DiceWinding (winding_t *w, vec_t subdiv, save_winding_fn_t save_fn);
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#ifdef __cplusplus
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}
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#endif
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#endif /* __COMMON_POLYLIB_H__ */
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