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Update IkConstraint.cpp (#2644)

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negative sqrt protection
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archilanfedorov 2024-10-02 17:12:38 +07:00 committed by GitHub
parent b63da877d4
commit b03c682443
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1 changed files with 3 additions and 2 deletions
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spine-cpp/spine-cpp/src/spine/IkConstraint.cpp
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@ -208,8 +208,9 @@ void IkConstraint::apply(Bone &parent, Bone &child, float targetX, float targetY
r0 = q / c2;
r1 = c0 / q;
r = MathUtil::abs(r0) < MathUtil::abs(r1) ? r0 : r1;
if (r * r <= dd) {
y = MathUtil::sqrt(dd - r * r) * bendDir;
float ddrr = dd - r * r;
if (ddrr >= 0) {
y = MathUtil::sqrt(ddrr) * bendDir;
a1 = ta - MathUtil::atan2(y, r);
a2 = MathUtil::atan2(y / psy, (r - l1) / psx);
goto break_outer;