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mathlib: refactor ProjectPointOntoPlane

This commit is contained in:
Eric Wasylishen 2017-06-20 16:01:34 -06:00
parent af264821b7
commit 98c5dd2913
1 changed files with 5 additions and 5 deletions
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10
include/common/mathlib.hh
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@ -214,17 +214,17 @@ GetDir(const vec3_t start, const vec3_t stop, vec3_t dir)
} }
static inline vec_t static inline vec_t
DistanceAbovePlane(const plane_t *plane, const vec3_t point) DistanceAbovePlane(const vec3_t normal, const vec_t dist, const vec3_t point)
{ {
return DotProduct(plane->normal, point) - plane->dist; return DotProduct(normal, point) - dist;
} }
static inline void static inline void
ProjectPointOntoPlane(const plane_t *plane, vec3_t point) ProjectPointOntoPlane(const vec3_t normal, const vec_t dist, vec3_t point)
{ {
vec_t dist = DistanceAbovePlane(plane, point); vec_t distAbove = DistanceAbovePlane(normal, dist, point);
vec3_t move; vec3_t move;
VectorScale(plane->normal, -dist, move); VectorScale(normal, -distAbove, move);
VectorAdd(point, move, point); VectorAdd(point, move, point);
} }