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Fix CCollision::DistToLine

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shfil 2021-01-24 12:34:40 +01:00 committed by GitHub
parent 5183d7cf0f
commit 3e6bb267f3
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1 changed files with 6 additions and 6 deletions
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10
src/collision/Collision.cpp
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@ -2245,12 +2245,12 @@ CCollision::DistToLine(const CVector *l0, const CVector *l1, const CVector *poin
float dot = DotProduct(*point - *l0, *l1 - *l0); float dot = DotProduct(*point - *l0, *l1 - *l0);
// Between 0 and len we're above the line. // Between 0 and len we're above the line.
// if not, calculate distance to endpoint // if not, calculate distance to endpoint
if(dot <= 0.0f) if(dot <= 0.0f) return (*point - *l0).Magnitude();
return (*point - *l0).Magnitude(); if(dot >= lensq) return (*point - *l1).Magnitude();
if(dot >= lensq)
return (*point - *l1).Magnitude();
// distance to line // distance to line
return Sqrt((*point - *l0).MagnitudeSqr() - dot*dot/lensq); float distSqr = (*point - *l0).MagnitudeSqr() - dot * dot / lensq;
if(distSqr <= 0.f) return 0.f;
return Sqrt(distSqr);
} }
// same as above but also return the point on the line // same as above but also return the point on the line